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TAS5548
SLES270 –NOVEMBER 2012
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11.11 Output Automute PWM Threshold and Back-End Reset Period Register (0x15)
For more information on how to use this register, see Automute and Mute Channel Controls,
Table 11-11. Automute PWM Threshold and Back-End Reset Period Register Format
D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION
0 0 0 0 – – – – Set PWM automute threshold equal to input automute threshold
0 0 0 1 – – – – Set PWM automute threshold +6dB over input automute threshold
0 0 1 0 – – – – Set PWM automute threshold +12dB over input automute threshold
0 0 1 1 – – – – Set PWM automute threshold +18dB over input automute threshold
0 1 0 0 – – – – Set PWM automute threshold +24dB over input automute threshold
0 1 0 1 – – – – Set PWM automute threshold +30dB over input automute threshold
0 1 1 0 – – – – Set PWM automute threshold +36dB over input automute threshold
0 1 1 1 – – – – Set PWM automute threshold +42dB over input automute threshold
1 0 0 0 – – – – Set PWM automute threshold equal to input automute threshold
1 0 0 1 – – – – Set PWM automute threshold -6dB below input automute threshold
1 0 1 0 – – – – Set PWM automute threshold -12dB below input automute threshold
1 0 1 1 – – – – Set PWM automute threshold -18dB below input automute threshold
1 1 0 0 – – – – Set PWM automute threshold -24dB below input automute threshold
1 1 0 1 – – – – Set PWM automute threshold -30dB below input automute threshold
1 1 1 0 – – – – Set PWM automute threshold -36dB below input automute threshold
1 1 1 1 – – – – Set PWM automute threshold -42dB below input automute threshold
– – – – 0 0 0 0 Set back-end reset period < 1 ms
– – – – 0 0 0 1 Set back-end reset period 70 ms
– – – – 0 0 1 0 Set back-end reset period 80 ms
– – – – 0 0 1 1 Set back-end reset period 220 ms
– – – – 0 1 0 0 Set back-end reset period 360 ms
– – – – 0 1 0 1 Set back-end reset period 500 ms
– – – – 0 1 1 0 Set back-end reset period 660 ms
– – – – 0 1 1 1 Set back-end reset period 800 ms
– – – – 1 0 0 0 Set back-end reset period 940 ms
– – – – 1 0 0 1 Set back-end reset period 1080 ms
– – – – 1 0 1 0 Set back-end reset period 1220 ms
– – – – 1 0 1 1 Set back-end reset period 1220 ms
– – – – 1 1 X X Set back-end reset period 1220 ms
PWM Automute is in dB with respect to Input Automute Threshold. The Thresholds are approximate.
82 Serial-Control Interface Register Definitions Copyright © 2012, Texas Instruments Incorporated
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