<PAGE>

       As filed with the Securities and Exchange Commission on February 13, 2001
                                                Registration No. 333-___________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------

                                    FORM S-8
                             REGISTRATION STATEMENT

                                      Under
                           The Securities Act of 1933
                           --------------------------

                                 MICROTUNE, INC.
             (Exact name of Registrant as specified in its charter)
                           --------------------------

            Delaware                                            75-288117
(State or other jurisdiction of                              (I.R.S. Employer
 incorporation or organization)                           Identification Number)

                               2201 Tenth Street
                                Plano, TX 75074
                                (972) 673-1600
  (Address, including zip code, of Registrant's principal executive offices)
                          --------------------------

                                2000 Stock Plan

                           (Full title of the plan)
                          --------------------------
                              TAMARA G. MATTISON
                      Vice President and General Counsel
                               2201 Tenth Street
                                Plano, TX 75074
                                (972) 673-1600
(Name, address, and telephone number, including area code, of agent for service)
                           --------------------------
                                  Copies to:
                          CHRISTOPHER J. OZBURN, ESQ.
                       Wilson Sonsini Goodrich & Rosati
                           Professional Corporation
                   8911 Capital of Texas Highway, Suite 3350
                               Austin, TX 78759
                                (512) 338-5400
                           --------------------------

                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
===============================================================================================================================
                                                                 Proposed Maximum       Proposed Maximum
   Title of Each Class of Securities          Amount to be        Offering Price       Aggregate Offering        Amount of
            to be Registered                   Registered            Per Share                Price           Registration Fee
<S>                                         <C>                  <C>                   <C>                    <C>
Common  Stock,  $0.001  per share par
value:  To be  issued  under the 2000
Stock Plan(1)........................       1,925,970 shares         $12.75 (2)         $24,556,118 (2)           $6,140
===============================================================================================================================
</TABLE>

(1)      Pursuant to Rule 416(a) of the Securities Act of 1933, as amended, this
         Registration Statement shall also cover any additional shares of the
         Registrant's Common Stock that become issuable under the 2000 Stock
         Plan by reason of any stock dividend, stock split, recapitalization or
         other similar transaction effected without the receipt of consideration
         that increases the number of the Registrant's outstanding shares of
         Common Stock.
(2)      Estimated in accordance with Rule 457(h) solely for the purpose of
         calculating the registration fee based upon the average of the high and
         low prices of the Common Stock as reported on the Nasdaq National
         Market on February 12, 2001.

================================================================================
<PAGE>

PART II: INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference
         ---------------------------------------

         Microtune, Inc. (the "Registrant") hereby incorporates by reference in
this registration statement the following documents:

         1.  The Registrant's prospectus filed pursuant to Rule 424(b) on August
             4, 2000;

         2.  The Registrant's Quarterly Report on Form 10-Q for the quarter
             ended September 30, 2000; and

         3.  The description of the Common Stock contained in the Registrant's
             Registration Statement on Form 8-A (Registration No. 000-31029)
             filed on July 14, 2000 and declared effective August 4, 2000, under
             the Securities Exchange Act of 1934, as amended, including any
             amendment or report subsequently filed by the Registrant for the
             purpose of updating that description.

         In addition, all documents subsequently filed by the Registrant
pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act
of 1934, as amended, prior to the filing of a post-effective amendment to this
registration statement which indicates that all securities offered hereby have
been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference in this registration statement and to be
a part hereof from the date of filing of such documents.

Item 4.  Description of Securities
         -------------------------

        Not applicable.

Item 5.  Interests of Named Experts and Counsel
         --------------------------------------
        Not applicable.

Item 6.  Indemnification of Directors and Officers
         -----------------------------------------

         Section 145 of the Delaware General Corporation Law authorizes a court
to award, or a corporation's Board of Directors to grant, indemnity to directors
and officers in terms sufficiently broad to permit such indemnification under
certain circumstances for liabilities (including reimbursement for expenses
incurred) arising under the Securities Act of 1933, as amended. The Registrant's
Certificate of Incorporation and Bylaws provide that the Registrant shall
indemnify its directors, officers, employees and other agents to the fullest
extent permitted by Delaware law, including circumstances in which
indemnification is otherwise discretionary under Delaware law.

         The Registrant has entered into indemnity agreements with certain
directors and executive officers. These agreements, among other things,
indemnify the directors and executive officers for certain expenses (including
attorneys' fees), judgments, fines, and settlement payments incurred by such
persons in any action, including any action by or in the right of the
Registrant, in connection with the good faith performance of their duties as a
director or officer. The indemnification agreements also provide for the advance
payment by the Registrant of defense expenses incurred by the director or
officer; however, the affected director or officer must undertake to repay such
amounts advanced if it is ultimately determined that such director or officer is
not entitled to be indemnified.
<PAGE>

Item 7.   Exemption From Registration Claimed
          -----------------------------------

                  Not applicable.

Item 8.   Exhibits
          --------

          Exhibit
           Number                            Documents
        ----------  ------------------------------------------------------------
            4.1*    Microtune, Inc. 1996 Stock Plan (as amended) and form of
                    agreement thereunder

            4.2*    Microtune, Inc. 2000 Employee Stock Purchase Plan and form
                    of agreement thereunder

            4.3*    Microtune, Inc. 2000 Director Option Plan and form of
                    agreement thereunder

            4.4*    Microtune, Inc. 2000 Stock Plan and form of agreements
                    thereunder

            5.1     Opinion of counsel as to legality of securities being
                    registered

           23.1     Consent of Counsel (contained in Exhibit 5.1)

           23.2     Consent of Independent Auditors

           24.1     Power of Attorney (see page II-7)

      *    Incorporated by reference to the Exhibits filed with Microtune,
           Inc.'s Registration Statement on Form S-1 (Registration No. 333-
           36340) as declared effective by the SEC on August 4, 2000.

Item 9.   Undertakings
          ------------

      (a) Rule 415 offering.  The undersigned Registrant hereby undertakes:

              (1) To file, during any period in which offers or sales are being
made, a post-effective amendment to this registration statement to include any
material information with respect to the plan of distribution not previously
disclosed in the registration statement or any material change to such
information in the registration statement;

              (2) That, for the purpose of determining any liability under the
Securities Act of 1933, as amended, each such post-effective amendment shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

              (3) To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.
<PAGE>

         (b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, as amended, each
filing of the Registrant's annual report pursuant to Section 13(a) or Section
15(d) of the Exchange Act (and, where applicable, each filing of an employee
benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that
is incorporated by reference in the registration statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such Securities at that time shall be deemed to be the initial bona
fide offering thereof.

         (c) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the Registrant pursuant to the foregoing provisions, or otherwise,
the Registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
<PAGE>

                                   SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Plano, State of Texas, on this 13th day of February,
2001.

                                               MICROTUNE, INC.


                                               By: /s/ Douglas J. Bartek
                                                   ----------------------------
                                                   Douglas J. Bartek
                                                   Chief Executive Officer
<PAGE>

                               POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Douglas J. Bartek and Everett Rogers, and
each of them, as his or her attorney-in-fact, with full power of substitution in
each, for him or her in any and all capacities, to sign any amendments to this
Registration Statement on Form S-8 and to file the same, with exhibits thereto
and other documents in connection therewith, with the Securities and Exchange
Commission, hereby ratifying and confirming all that each of said
attorneys-in-fact, or his substitute or substitutes, may do or cause to be done
by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
          Signature                                      Title                              Date
--------------------------------        ---------------------------------------      ---------------------
<S>                                     <C>                                          <C>
/s/ Douglas J. Bartek                   Chief Executive Officer and Chairman         February 13, 2001
--------------------------------        (Principal Executive Officer)
Douglas J. Bartek

/s/ Everett Rogers                      Chief Financial Officer, (Principal          February 13, 2001
--------------------------------        Financial and Accounting Officer)
Everett Rogers

/s/ Harvey B. Cash                      Director                                     February 13, 2001
--------------------------------
Harvey B. Cash

/s/ Walter S. Ciciora                   Director                                     February 13, 2001
--------------------------------
Walter S. Ciciora

/s/ James H. Clardy                     Director                                     February 13, 2001
--------------------------------
James H. Clardy

/s/ John Norsworthy                     Director                                     February 13, 2001
--------------------------------
John Norsworthy

/s/ Philippe von Stauffenberg           Director                                     February 13, 2001
--------------------------------
Philippe von Stauffenberg

/s/ Lawrence D. Stuart, Jr.             Director                                     February 13, 2001
--------------------------------
Lawrence D. Stuart, Jr.

/s/ William P. Tai                      Director                                     February 13, 2001
--------------------------------
William P. Tai

/s/ Martin Englmeier                    Vice Chairman                                February 13, 2001
--------------------------------
Martin Englmeier
</TABLE>
<PAGE>

                                MICROTUNE, INC.

                      REGISTRATION STATEMENT ON FORM S-8
                      ----------------------------------

                               INDEX TO EXHIBITS

     Exhibit
     Number                             Documents
   ----------  -----------------------------------------------------------------
     4.1*      Microtune, Inc. 1996 Stock Plan (as amended) and form of
               agreement thereunder

     4.2*      Microtune, Inc. 2000 Employee Stock Purchase Plan and form of
               agreement thereunder

     4.3*      Microtune, Inc. 2000 Director Option Plan and form of agreement
               thereunder

     4.4*      Microtune, Inc. 2000 Stock Plan and form of agreements thereunder

     5.1       Opinion of counsel as to legality of securities being registered

    23.1       Consent of Counsel (contained in Exhibit 5.1)

    23.2       Consent of Independent Auditors

    24.1       Power of Attorney (see page II-7)

*   Incorporated by reference to the Exhibits filed with Microtune, Inc.'s
    Registration statement on Form S-1 (Registration No. 333-36340) as declared
    effective by the SEC on August 4, 2000.
[{"type": "S-8", "sequence": "1", "filename": "0001.txt", "description": "FORM S-8", "secsgml_size_bytes": 16420}]
{"company-data": {"conformed-name": "MICROTUNE INC", "cik": "0001108058", "assigned-sic": "3674", "irs-number": "752665364", "state-of-incorporation": "TX", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-55504", "film-number": "1538048"}, "business-address": {"street1": "2540 E. PLANO PKWY, SUITE 188", "city": "PLANO", "state": "TX", "zip": "75074"}, "mail-address": {"street1": "2540 E PLANO PARKWAY SUITE 188", "city": "PLANO", "state": "TX", "zip": "75074"}}
As filed with the Securities and Exchange Commission on February 13, 2001
                                                Registration No. 333-___________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ----------------------

                                    FORM S-8
                             REGISTRATION STATEMENT

                                      Under
                           The Securities Act of 1933
                           --------------------------

                                 MICROTUNE, INC.
             (Exact name of Registrant as specified in its charter)
                           --------------------------

            Delaware                                            75-288117
(State or other jurisdiction of                              (I.R.S. Employer
 incorporation or organization)                           Identification Number)

                               2201 Tenth Street
                                Plano, TX 75074
                                (972) 673-1600
  (Address, including zip code, of Registrant's principal executive offices)
                          --------------------------

                                2000 Stock Plan

                           (Full title of the plan)
                          --------------------------
                              TAMARA G. MATTISON
                      Vice President and General Counsel
                               2201 Tenth Street
                                Plano, TX 75074
                                (972) 673-1600
(Name, address, and telephone number, including area code, of agent for service)
                           --------------------------
                                  Copies to:
                          CHRISTOPHER J. OZBURN, ESQ.
                       Wilson Sonsini Goodrich & Rosati
                           Professional Corporation
                   8911 Capital of Texas Highway, Suite 3350
                               Austin, TX 78759
                                (512) 338-5400
                           --------------------------

                        CALCULATION OF REGISTRATION FEE
===============================================================================================================================
                                                                 Proposed Maximum       Proposed Maximum
   Title of Each Class of Securities          Amount to be        Offering Price       Aggregate Offering        Amount of
            to be Registered                   Registered            Per Share                Price           Registration Fee
Common  Stock,  $0.001  per share par
value:  To be  issued  under the 2000
Stock Plan(1)........................       1,925,970 shares         $12.75 (2)         $24,556,118 (2)           $6,140
===============================================================================================================================
(1)      Pursuant to Rule 416(a) of the Securities Act of 1933, as amended, this
         Registration Statement shall also cover any additional shares of the
         Registrant's Common Stock that become issuable under the 2000 Stock
         Plan by reason of any stock dividend, stock split, recapitalization or
         other similar transaction effected without the receipt of consideration
         that increases the number of the Registrant's outstanding shares of
         Common Stock.
(2)      Estimated in accordance with Rule 457(h) solely for the purpose of
         calculating the registration fee based upon the average of the high and
         low prices of the Common Stock as reported on the Nasdaq National
         Market on February 12, 2001.

================================================================================
PART II: INFORMATION REQUIRED IN REGISTRATION STATEMENT

Item 3.  Incorporation of Documents by Reference
         ---------------------------------------

         Microtune, Inc. (the "Registrant") hereby incorporates by reference in
this registration statement the following documents:

         1.  The Registrant's prospectus filed pursuant to Rule 424(b) on August
             4, 2000;

         2.  The Registrant's Quarterly Report on Form 10-Q for the quarter
             ended September 30, 2000; and

         3.  The description of the Common Stock contained in the Registrant's
             Registration Statement on Form 8-A (Registration No. 000-31029)
             filed on July 14, 2000 and declared effective August 4, 2000, under
             the Securities Exchange Act of 1934, as amended, including any
             amendment or report subsequently filed by the Registrant for the
             purpose of updating that description.

         In addition, all documents subsequently filed by the Registrant
pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Securities Exchange Act
of 1934, as amended, prior to the filing of a post-effective amendment to this
registration statement which indicates that all securities offered hereby have
been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference in this registration statement and to be
a part hereof from the date of filing of such documents.

Item 4.  Description of Securities
         -------------------------

        Not applicable.

Item 5.  Interests of Named Experts and Counsel
         --------------------------------------
        Not applicable.

Item 6.  Indemnification of Directors and Officers
         -----------------------------------------

         Section 145 of the Delaware General Corporation Law authorizes a court
to award, or a corporation's Board of Directors to grant, indemnity to directors
and officers in terms sufficiently broad to permit such indemnification under
certain circumstances for liabilities (including reimbursement for expenses
incurred) arising under the Securities Act of 1933, as amended. The Registrant's
Certificate of Incorporation and Bylaws provide that the Registrant shall
indemnify its directors, officers, employees and other agents to the fullest
extent permitted by Delaware law, including circumstances in which
indemnification is otherwise discretionary under Delaware law.

         The Registrant has entered into indemnity agreements with certain
directors and executive officers. These agreements, among other things,
indemnify the directors and executive officers for certain expenses (including
attorneys' fees), judgments, fines, and settlement payments incurred by such
persons in any action, including any action by or in the right of the
Registrant, in connection with the good faith performance of their duties as a
director or officer. The indemnification agreements also provide for the advance
payment by the Registrant of defense expenses incurred by the director or
officer; however, the affected director or officer must undertake to repay such
amounts advanced if it is ultimately determined that such director or officer is
not entitled to be indemnified.
Item 7.   Exemption From Registration Claimed
          -----------------------------------

                  Not applicable.

Item 8.   Exhibits
          --------

          Exhibit
           Number                            Documents
        ----------  ------------------------------------------------------------
            4.1*    Microtune, Inc. 1996 Stock Plan (as amended) and form of
                    agreement thereunder

            4.2*    Microtune, Inc. 2000 Employee Stock Purchase Plan and form
                    of agreement thereunder

            4.3*    Microtune, Inc. 2000 Director Option Plan and form of
                    agreement thereunder

            4.4*    Microtune, Inc. 2000 Stock Plan and form of agreements
                    thereunder

            5.1     Opinion of counsel as to legality of securities being
                    registered

           23.1     Consent of Counsel (contained in Exhibit 5.1)

           23.2     Consent of Independent Auditors

           24.1     Power of Attorney (see page II-7)

      *    Incorporated by reference to the Exhibits filed with Microtune,
           Inc.'s Registration Statement on Form S-1 (Registration No. 333-
           36340) as declared effective by the SEC on August 4, 2000.

Item 9.   Undertakings
          ------------

      (a) Rule 415 offering.  The undersigned Registrant hereby undertakes:

              (1) To file, during any period in which offers or sales are being
made, a post-effective amendment to this registration statement to include any
material information with respect to the plan of distribution not previously
disclosed in the registration statement or any material change to such
information in the registration statement;

              (2) That, for the purpose of determining any liability under the
Securities Act of 1933, as amended, each such post-effective amendment shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

              (3) To remove from registration by means of a post-effective
amendment any of the securities being registered which remain unsold at the
termination of the offering.
(b) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, as amended, each
filing of the Registrant's annual report pursuant to Section 13(a) or Section
15(d) of the Exchange Act (and, where applicable, each filing of an employee
benefit plan's annual report pursuant to Section 15(d) of the Exchange Act) that
is incorporated by reference in the registration statement shall be deemed to be
a new registration statement relating to the securities offered therein, and the
offering of such Securities at that time shall be deemed to be the initial bona
fide offering thereof.

         (c) Insofar as indemnification for liabilities arising under the
Securities Act of 1933 may be permitted to directors, officers and controlling
persons of the Registrant pursuant to the foregoing provisions, or otherwise,
the Registrant has been advised that in the opinion of the Securities and
Exchange Commission such indemnification is against public policy as expressed
in the Act and is, therefore, unenforceable. In the event that a claim for
indemnification against such liabilities (other than the payment by the
Registrant of expenses incurred or paid by a director, officer or controlling
person of the Registrant in the successful defense of any action, suit or
proceeding) is asserted by such director, officer or controlling person in
connection with the securities being registered, the Registrant will, unless in
the opinion of its counsel the matter has been settled by controlling precedent,
submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Act and will
be governed by the final adjudication of such issue.
SIGNATURES

         Pursuant to the requirements of the Securities Act of 1933, the
Registrant certifies that it has reasonable grounds to believe that it meets all
of the requirements for filing on Form S-8 and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Plano, State of Texas, on this 13th day of February,
2001.

                                               MICROTUNE, INC.

                                               By: /s/ Douglas J. Bartek
                                                   ----------------------------
                                                   Douglas J. Bartek
                                                   Chief Executive Officer
POWER OF ATTORNEY

         KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Douglas J. Bartek and Everett Rogers, and
each of them, as his or her attorney-in-fact, with full power of substitution in
each, for him or her in any and all capacities, to sign any amendments to this
Registration Statement on Form S-8 and to file the same, with exhibits thereto
and other documents in connection therewith, with the Securities and Exchange
Commission, hereby ratifying and confirming all that each of said
attorneys-in-fact, or his substitute or substitutes, may do or cause to be done
by virtue hereof.

         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Registration Statement has been signed by the following persons in the
capacities and on the dates indicated.
Signature                                      Title                              Date
--------------------------------        ---------------------------------------      ---------------------
/s/ Douglas J. Bartek                   Chief Executive Officer and Chairman         February 13, 2001
--------------------------------        (Principal Executive Officer)
Douglas J. Bartek

/s/ Everett Rogers                      Chief Financial Officer, (Principal          February 13, 2001
--------------------------------        Financial and Accounting Officer)
Everett Rogers

/s/ Harvey B. Cash                      Director                                     February 13, 2001
--------------------------------
Harvey B. Cash

/s/ Walter S. Ciciora                   Director                                     February 13, 2001
--------------------------------
Walter S. Ciciora

/s/ James H. Clardy                     Director                                     February 13, 2001
--------------------------------
James H. Clardy

/s/ John Norsworthy                     Director                                     February 13, 2001
--------------------------------
John Norsworthy

/s/ Philippe von Stauffenberg           Director                                     February 13, 2001
--------------------------------
Philippe von Stauffenberg

/s/ Lawrence D. Stuart, Jr.             Director                                     February 13, 2001
--------------------------------
Lawrence D. Stuart, Jr.

/s/ William P. Tai                      Director                                     February 13, 2001
--------------------------------
William P. Tai

/s/ Martin Englmeier                    Vice Chairman                                February 13, 2001
--------------------------------
Martin Englmeier
MICROTUNE, INC.

                      REGISTRATION STATEMENT ON FORM S-8
                      ----------------------------------

                               INDEX TO EXHIBITS

     Exhibit
     Number                             Documents
   ----------  -----------------------------------------------------------------
     4.1*      Microtune, Inc. 1996 Stock Plan (as amended) and form of
               agreement thereunder

     4.2*      Microtune, Inc. 2000 Employee Stock Purchase Plan and form of
               agreement thereunder

     4.3*      Microtune, Inc. 2000 Director Option Plan and form of agreement
               thereunder

     4.4*      Microtune, Inc. 2000 Stock Plan and form of agreements thereunder

     5.1       Opinion of counsel as to legality of securities being registered

    23.1       Consent of Counsel (contained in Exhibit 5.1)

    23.2       Consent of Independent Auditors

    24.1       Power of Attorney (see page II-7)

*   Incorporated by reference to the Exhibits filed with Microtune, Inc.'s
    Registration statement on Form S-1 (Registration No. 333-36340) as declared
    effective by the SEC on August 4, 2000.