Datasheet

TAS5548
SLES270 –NOVEMBER 2012 www.ti.com
11.41 AM Mode Register (0xDE)
Bits D31–D25 and D23-D21 are reserved.
BCD = Binary Coded Decimal.
Table 11-60. AM Mode Register Format
D31 D30 D29 D28 D27 D26 D25 D24 FUNCTION
0 AM Avoidance Mode: Use Frequency Scaling
1 AM Avoidance Mode: Use Sampling Rate Conversion Mode
D23 D22 D21 D20 D19 D18 D17 D16 FUNCTION
0 – – – – AM mode disabled
1 – – – – AM mode enabled
– 0 0 – – Select sequence 1
– 0 1 – – Select sequence 2
– 1 0 – – Select sequence 3
– 1 1 – – Select sequence 4
– – – 0 – IF frequency = 455 kHz
– – – 1 – IF frequency = 262.5 kHz
– – – – 0 Use BCD-tuned frequency
– – – – 1 Use binary-tuned frequency
Table 11-61. AM Tuned Frequency Register in BCD Mode (Lower 2 Bytes of 0xDE)
D15 D14 D13 D12 D11 D10 D9 D8 FUNCTION
0 0 0 B0 – – – – BCD frequency (1000s kHz)
– – – – B3 B2 B1 B0 BCD frequency (100s kHz)
0 0 0 0 0 0 0 0 Default value
D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION
B3 B2 B1 B0 – – – – BCD frequency (10s kHz)
– – – – B3 B2 B1 B0 BCD frequency (1s kHz)
0 0 0 0 0 0 0 0 Default value
Table 11-62. AM Tuned Frequency Register in Binary Mode (Lower 2 Bytes of 0xDE)
D15 D14 D13 D12 D11 D10 D9 D8 FUNCTION
0 0 0 0 0 B10 B9 B8 Binary frequency (upper 3 bits)
0 0 0 0 0 0 0 0 Default value
D7 D6 D5 D4 D3 D2 D1 D0 FUNCTION
B7 B6 B5 B4 B3 B2 B1 B0 Binary frequency (lower 8 bits)
0 0 0 0 0 0 0 0 Default value
110 Serial-Control Interface Register Definitions Copyright © 2012, Texas Instruments Incorporated
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