Texas Instruments AFE79 Series - 1.2.5.15 AGC Gain Step Size Configuration Macro

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SBAU337–May 2020
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Macro
Table 1-73. (continued)
Macro AGC External LNA Gain Control Configuration Macro
2 0x01 1 Ext LNA
Temperature Model
If external LNA temperature model is present
3 0x02 1 Start temp
4 0x03 1 Step temperature
5 0x04 1 Number of
steps(Value of 2
corresponds to 2
gain phase values
for 2 different
temperatures)
If external LNA temperature model is not present
3 0x02 2 11-bit External LNA
Gain value B0 (1
LSB = 1/32 dB)
4 0x04 2 10-bit External LNA
Phase value B0 (1
LSB = 360/1024
degrees)
5 0x06 2 11-bit External LNA
Gain value B1 (1
LSB = 1/32 dB)(
6 0x08 2 10-bit External LNA
Phase value B1 (1
LSB = 360/1024
degrees)
Memory Used based on Ext LNA Temperature Model. Maximum 32 entries per band. Each Entry has 2 bytes for Gain
(6.5U) and 2 bytes for Phase (10.0 U). Band 1 (Number of Steps × 4 Bytes) is consecutively followed by
Band 2 (Number of Steps × 4 Bytes)
1.2.5.15 AGC Gain Step Size Configuration Macro
Table 1-74.
Macro AGC Gain Step Size Configuration
Opcode 0x67
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