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TAS5706PAP датащи(PDF) 45 Page - Texas Instruments |
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TAS5706PAP датащи(HTML) 45 Page - Texas Instruments |
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45 / 62 page ![]() www.ti.com SERIAL DATA INTERFACE REGISTER (0x04) SYSTEM CONTROL REGISTER 2 (0x05) TAS5706 SLOS550A – DECEMBER 2007 – REVISED DECEMBER 2007 Table 7. System Control Register 1 (0x03) (continued) D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION – – – – 1 – – – Disable clock autodetect – – – – – 0 – – Enable soft start (1) – – – – – 1 – – Disable soft start – – – – – – 0 0 No de-emphasis (1) – – – – – – 0 1 Reserved – – – – – – 1 0 De-emphasis for fS = 44.1 kHz – – – – – – 1 1 De-emphasis for fS = 48 kHz As shown in NoLabel , TAS5706 supports 21 serial data modes. The default is 24-bit, I2S mode, Serial Data Interface Control Register (0x04) Format RECEIVE SERIAL DATA WORD D7–D5 D4 D3 D2 D1 D0 INTERFACE FORMAT LENGTH Right-justified 16 000 0 0 0 0 0 Right-justified 20 000 0 0 0 0 1 Right-justified 24 000 0 0 0 1 0 I2S 16 000 0 0 0 1 1 I2S 20 000 0 0 1 0 0 I2S (1) 24 000 0 0 1 0 1 Left-justified 16 000 0 0 1 1 0 Left-justified 20 000 0 0 1 1 1 Left-justified 24 000 0 1 0 0 0 Reserved 000 0 1 0 0 1 Right-justified 18 000 0 1 0 1 0 Reserved 000 0 1 0 1 1 Reserved 000 0 1 1 0 0 Reserved 000 0 1 1 0 1 Reserved 000 0 1 1 1 0 Reserved 000 0 1 1 1 1 Reserved 000 1 0 0 0 0 I2S (32 fS SCLK) 16 000 1 0 0 1 1 Left-justified (32 fS SCLK) 000 1 0 1 1 0 Reserved 000 1 1 0 0 1 Reserved 000 1 1 0 1 1 Reserved 000 1 1 1 0 1 (1) Default values are in bold. Bit D6 is a control bit and bit D5 is a configuration bit. When bit D6 is set low, the system starts playing; otherwise, the outputs are shut down. Bit D5 defines the configuration of the system, that is, it determines what configuration the system runs in when bit D6 is set low. When this bit is asserted, all channels are switching. Otherwise, only a subset of the PWM channels will run. The channels to shut down are defined in the shutdown group register (0x19). Bit D5 should only be changed when bit D6 is set, meaning that it is only possible to switch configurations by resetting the DAP and then restarting it again in the new configuration. Copyright © 2007, Texas Instruments Incorporated Submit Documentation Feedback 45 Product Folder Link(s): TAS5706 |
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