Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- DESCRIPTION
- DEVICE INFORMATION
- ABSOLUTE MAXIMUM RATINGS
- THERMAL INFORMATION
- RECOMMENDED OPERATING CONDITIONS
- PWM OPERATION AT RECOMMENDED OPERATING CONDITIONS
- PLL INPUT PARAMETERS AND EXTERNAL FILTER COMPONENTS
- ELECTRICAL CHARACTERISTICS
- DC Characteristics
- AC Characteristics (BTL)
- SERIAL AUDIO PORTS SLAVE MODE
- I2C SERIAL CONTROL PORT OPERATION
- RESET TIMING (RESET)
- TYPICAL CHARACTERISTICS, BTL CONFIGURATION
- TYPICAL CHARACTERISTICS, SE CONFIGURATION
- TYPICAL CHARACTERISTICS, PBTL CONFIGURATION
- DETAILED DESCRIPTION
- POWER SUPPLY
- ERROR REPORTING
- DEVICE PROTECTION SYSTEM
- SSTIMER FUNCTIONALITY
- CLOCK, AUTO DETECTION, AND PLL
- SERIAL DATA INTERFACE
- PWM Section
- SERIAL INTERFACE CONTROL AND TIMING
- I2C SERIAL CONTROL INTERFACE
- Output Mode and MUX Selection
- 2.1-Mode Support
- Single-Filter PBTL-Mode Support
- Dynamic Range Control (DRC)
- BANK SWITCHING
- 26-Bit 3.23 Number Format
- Recommended Use Model
- CLOCK CONTROL REGISTER (0x00)
- DEVICE ID REGISTER (0x01)
- ERROR STATUS REGISTER (0x02)
- SYSTEM CONTROL REGISTER 1 (0x03)
- SERIAL DATA INTERFACE REGISTER (0x04)
- SYSTEM CONTROL REGISTER 2 (0x05)
- SOFT MUTE REGISTER (0x06)
- VOLUME REGISTERS (0x07, 0x08, 0x09, 0x0A)
- VOLUME CONFIGURATION REGISTER (0x0E)
- MODULATION LIMIT REGISTER (0x10)
- INTERCHANNEL DELAY REGISTERS (0x11, 0x12, 0x13, and 0x14)
- PWM SHUTDOWN GROUP REGISTER (0x19)
- START/STOP PERIOD REGISTER (0x1A)
- OSCILLATOR TRIM REGISTER (0x1B)
- BKND_ERR REGISTER (0x1C)
- INPUT MULTIPLEXER REGISTER (0x20)
- CHANNEL 4 SOURCE SELECT REGISTER (0x21)
- PWM OUTPUT MUX REGISTER (0x25)
- DRC CONTROL (0x46)
- BANK SWITCH AND EQ CONTROL (0x50)
- Revision History
TAS5711
SLOS600A –DECEMBER 2009–REVISED AUGUST 2010
www.ti.com
OSCILLATOR TRIM REGISTER (0x1B)
The TAS5711 PWM processor contains an internal oscillator to support autodetect of I2S clock rates. This
reduces system cost because an external reference is not required. Currently, TI recommends a reference
resistor value of 18.2 kΩ (1%). This should be connected between OSC_RES and DVSSO.
Writing 0x00 to register 0x1B enables the trim that was programmed at the factory.
Note that trim must always be run following reset of the device.
Table 18. Oscillator Trim Register (0x1B)
D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION
1 – – – – – – – Reserved
(1)
– 0 – – – – – – Oscillator trim not done (read-only)
(1)
– 1 – – – – – – Oscillator trim done (read only)
– – 0 0 0 0 – – Reserved
(1)
– – – – – – 0 – Select factory trim (Write a 0 to select factory trim; default is 1.)
– – – – – – 1 – Factory trim disabled
(1)
– – – – – – – 0 Reserved
(1)
(1) Default values are in bold.
BKND_ERR REGISTER (0x1C)
When a back-end error signal is received from the internal power stage, the power stage is reset stopping all
PWM activity. Subsequently, the modulator waits approximately for the time listed in Table 19 before attempting
to re-start the power stage.
Table 19. BKND_ERR Register (0x1C)
(1)
D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION
0 0 0 0 0 0 0 X Reserved
– – – – 0 0 1 0 Set back-end reset period to 299 ms
(2)
– – – – 0 0 1 1 Set back-end reset period to 449 ms
– – – – 0 1 0 0 Set back-end reset period to 598 ms
– – – – 0 1 0 1 Set back-end reset period to 748 ms
– – – – 0 1 1 0 Set back-end reset period to 898 ms
– – – – 0 1 1 1 Set back-end reset period to 1047 ms
– – – – 1 0 0 0 Set back-end reset period to 1197 ms
– – – – 1 0 0 1 Set back-end reset period to 1346 ms
– – – – 1 0 1 X Set back-end reset period to 1496 ms
– – – – 1 1 X X Set back-end reset period to 1496 ms
(1) This register can be written only with a "non-Reserved" value. Also this register can be written once after the reset.
(2) Default values are in bold.
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