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Rev. 0.9
Property 0x0708 AM_IF_AGC_ATTACK_MS
Sets the number of milliseconds the IF high peak detector must be exceeded before attenuating the appropriate
block. The peak detectors are only sampled once every 3–5 ms. If the peak detector trips, the internal counter is
incremented by 4 ms. The CTS bit (and optional interrupt) is set when it is safe to send the next command. This
property may only be set or read when in the powerup mode.
Default: 80
Units: ms
Property 0x0709 AM_IF_AGC_RELEASE_MS
Sets the number of milliseconds the IF low peak detector must not be exceeded before increasing the gain of the
appropriate block. The peak detectors are only sampled once every 3–5 ms. If the peak detector trips, the internal
counter is incremented by 4 ms. The CTS bit (and optional interrupt) is set when it is safe to send the next
command. This property may only be set or read when in the powerup mode.
Si475x-A10 and earlier, Default: 80
Si475x-A30 and later, Default: 804
Units: ms
AM_IF_AGC_ATTACK_MS
15
14
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12
11
10
9
8
7
6
5
4
3
2
1
0
IF_AGC_ATTACK_MS[15:0]
0x0050
Bit
Name
Function
15:0
IF_AGC_ATTACK_MS[15:0]
Number of milliseconds the IF high peak detector must be exceeded
before attenuating the appropriate block.
Si475x-A10 and earlier: Range: 4–248 ms.
Si475x-A20 and later: Range: 4–4096 ms.
AM_IF_AGC_RELEASE_MS
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
IF_AGC_RELEASE_MS[15:0]
0x0324
Bit
Name
Function
15:0
IF_AGC_RELEASE_MS[15:0]
Number of milliseconds the IF low peak detector must not be
exceeded before increasing the gain of the appropriate block.
Si475x-A10 Range: 4–248 ms
Si475x-A20 and later, Range: 4–4096 ms
Note:
For best performance AM_IF_AGC_RELEASE_MS > AM_RF_AGC_RELEASE_MS and set
AM_IF_AGC_RELEASE_MS to 804 ms for AM_RF_AGC_RELEASE_MS of 800 ms.