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TUSB3200A Datasheet(PDF) 39 Page - Texas Instruments |
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TUSB3200A Datasheet(HTML) 39 Page - Texas Instruments |
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39 / 102 page  Secondary MCLKO CSCHNE CRESET CDATI CDATO CSCLK CSYNC AC97CLK CRESET SD_OUT SD_IN BIT_CLK SYNC AC97CLK CRESET SD_OUT SD_IN BIT_CLK SYNC AC’97 IC TUSB3200A AC97 or MC97 Primary TUSB3200A www.ti.com SLES018B – OCTOBER 2001 – REVISED FEBRUARY 2011 2.2.13.2 Audio Codec (AC) '97 2.0 Mode of Operation The basic serial protocol for the AC '97 2.0 mode is the same as the AC '97 1.0 mode. The AC '97 2.0 mode, however, offers some additional features. In this mode, the TUSB3200A provides support for multiple codec devices and also on-demand sampling. The TUSB3200A can connect directly to two AC '97 codecs as shown in Figure 2-3. Note that if only one codec is used, then the SD_IN2 input (pin 40) should be tied to DVSS. Table 2-4. Terminal Assignments for Codec Port Interface AC '97 2.0 Mode TERMINAL AC '97 Version 2.0 MODE 3 NO. NAME 35 CSYNC SYNC O 34 CSCLK BIT_CLK I 36 CDATO SD_OUT O 38 CDATI SD_IN1 I 39 CRESET RESET O 40 CSCHNE SD_IN2 I Figure 2-3. Connection of the TUSB3200A to Multiple AC '97 Codecs 2.2.13.3 Inter-IC Sound (I2S) Modes of Operation The TUSB3200A offers a total of four I2S modes of operation. However, the serial format is the same for all four of the I2S modes. The difference in the I2S modes is simply the number of serial data outputs and/or serial data inputs supported. For instance, in codec port interface mode 4, there are three serial data outputs (SDOUT1, SDOUT2, SDOUT3) and one serial data input (SDIN1). Hence, mode 4 can be used to connect the TUSB3200A device to a codec with three stereo DACs and one ADC for multichannel audio applications. Note however that not all of the serial data outputs and/or inputs must be used for any given mode. Table 2-5 shows the TUSB3200A codec terminal assignments and the respective signal names for each of the I2S modes. Copyright © 2001–2011, Texas Instruments Incorporated Description 39 Submit Documentation Feedback Product Folder Link(s): TUSB3200A |
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