<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED FINANCIAL STATEMENTS OF MICROTUNE, INC. AS OF SEPTEMBER 30, 2000
AND 1999 AND FOR THE NINE MONTHS THEN ENDED, AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

<S>                             <C>                     <C>
<PERIOD-TYPE>                   9-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000             DEC-31-1999
<PERIOD-START>                             JAN-01-2000             JAN-01-1999
<PERIOD-END>                               SEP-30-2000             SEP-30-1999
<CASH>                                          31,134                   1,911
<SECURITIES>                                    50,862                   4,000
<RECEIVABLES>                                   11,194                       0
<ALLOWANCES>                                       638                       0
<INVENTORY>                                     13,982                       0
<CURRENT-ASSETS>                               109,878                   6,100
<PP&E>                                          19,341                   3,588
<DEPRECIATION>                                   5,133                   1,626
<TOTAL-ASSETS>                                 155,312                   8,224
<CURRENT-LIABILITIES>                           16,497                     636
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       8
<COMMON>                                            38                       6
<OTHER-SE>                                     134,605                   7,573
<TOTAL-LIABILITY-AND-EQUITY>                   155,312                   8,224
<SALES>                                         48,896                       0
<TOTAL-REVENUES>                                48,896                       0
<CGS>                                           32,585                       0
<TOTAL-COSTS>                                   32,585                       0
<OTHER-EXPENSES>                                43,938                   6,294
<LOSS-PROVISION>                                   226                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                                (26,263)                 (5,935)
<INCOME-TAX>                                     1,686                       0
<INCOME-CONTINUING>                            (27,949)                 (5,935)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                   (27,949)                 (5,935)
<EPS-BASIC>                                      (1.96)                  (0.87)
<EPS-DILUTED>                                    (1.96)                  (0.87)


</TABLE>