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STAC9767 датащи(PDF) 16 Page - Integrated Device Technology |
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STAC9767 датащи(HTML) 16 Page - Integrated Device Technology |
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16 / 97 page ![]() STAC9766/9767 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING PC AUDIO IDT™ 16 STAC9766/9767 V 7.4 12/06 TWO-CHANNEL, 20-BIT, AC’97 2.3 CODECS WITH STEREO MICROPHONE AND MIC/JACK SENSING 2.2.7. AC-Link Low Power Mode Timing Figure 7. AC-Link Low Power Mode Timing 2.2.8. ATE Test Mode Figure 8. ATE Test Mode Timing Note: 1) All AC-Link signals are normally low through the trailing edge of RESET#. Bringing SDATA_OUT high for the trailing edge of RESET# causes the STAC9766/9767 AC-Link outputs to go high-impedance, which is suitable for ATE in-circuit testing. Note: 2) Once the test mode has been entered, the STAC9766/9767 must be issued another RESET# with all AC-Link signals low to return to the normal operating mode. Note: 3) # denotes active low. Parameter Symbol Min Typ Max Units BIT_CLK rise time Triseclk - - 6 ns BIT_CLK fall time Tfallclk - - 6 ns SDATA_IN rise time Trisedin - - 6 ns SDATA_IN fall time Tfalldin - - 6 ns Parameter Symbol Min Typ Max Units End of Slot 2 to BIT_CLK, SDATA_IN low Ts2_pdown - - 1.0 µs Parameter Symbol Min Typ Max Units Setup to trailing edge of RESET# (also applies to SYNC) Tsetup2rst 15.0 - - ns Rising edge of RESET# to Hi-Z delay Toff - - 25.0 ns BIT_CLK SDATA_IN Note: BIT_CLK not to scale Ts2_pdown Don't care Data PR4 Write to 0x20 Slot 2 Slot 1 SDATA_OUT SYNC Tsetup2rst Hi-Z Toff RESET# SDATA_OUT SDATA_IN, BIT_CLK |
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