Texas Instruments AFE79 Series User Manual

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SBAU337–May 2020
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Macro
Table 1-58. (continued)
Macro AGC Digital Detector Configuration Macro
Memory Not used
Digital Detector Threshold: This is the threshold level in dB scale. The range of values that can be
represented in this format will be 0 dBFS to -63.75 dBFS. Example:
1. 0x00 will mean 0 dBFS
2. 0x01 will mean -0.25 dBFS
3. 0x7F will mean -31.75 dBFS
4. 0x80 will mean -32 dBFS
5. 0xFF will mean -63.75 dBFS
The different digital detector thresholds present are:
1. Big step attack detector threshold
2. Small step attack detector threshold
3. Big step decay detector threshold
4. Small step decay detector threshold
5. Power detector attack threshold
6. Power detector decay threshold
1.2.5.2 AGC Detector Time Constant Macro
Table 1-59.
Macro AGC Detector Time Constant
Opcode 0x59
Operand Offset Length Value Functionality Results
1 0x00 1 RX Channel Select Bit 0: 1 → Value
specified in
subsequent
operands is valid for
1RX.
Bit 1: 1 → Value
specified in
subsequent
operands is valid for
2RX.
Bit 2: 1 → Value
specified in
subsequent
operands is valid for
3RX.
Bit 3: 1 → Value
specified in
subsequent
operands is valid for
4RX.
Bit 4 → RESERVED
Bit 5 → RESERVED
2 0x01 3 Time Constant Big Step Attack
Time Constant (fast
attack) (1 LSB = 10
ns).
For example value
of 1024 implies
10240 ns.

Texas Instruments AFE79 Series Specifications

General

Brand	Texas Instruments
Model	AFE79 Series
Category	Control Unit
Language	English