Texas Instruments AFE79 Series User Manual

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SBAU337–May 2020
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Macro
Table 1-71.
Decimation factor Band Detector Clock Rate (F
BAND
)
8 F
ADC
/4
10 F
ADC
/4
12 F
ADC
/4
16 F
ADC
/4
20 F
ADC
/4
24 F
ADC
/4
32 F
ADC
/8
40 F
ADC
/8
48 F
ADC
/8
1.2.5.13 AGC Customer RF Macro
This Macro describes the use of the RF Detector in Analog before the DSA (Digital Step Attenuator). It
can be used by the customer in the external AGC mode. The detector output can be obtained on pins or
as part of data in the LSBs based on inputs in External AGC Configuration Macro. Additionally, there is a
mode where this detector can be used in Internal AGC mode as a very big step attack detector or a
detector to bypass LNA.
Table 1-72.
Macro AGC Customer RF
Opcode 0x65
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 Customer RF
detector enable.
3 0x02 1 Mode:
0x0: Customer AGC
(External AGC
mode)
0x1: Very big step
attack
0x2: As detector to
bypass LNA
4 0x03 1 Absolute/Relative
option for Time
Crossings
0:Absolute
1:Relative

Texas Instruments AFE79 Series Specifications

General

Brand	Texas Instruments
Model	AFE79 Series
Category	Control Unit
Language	English