LV25700PM Datasheet, PDF (51/68 Pages) Sanyo Semicon Device – For Car Radio Single chip Tuner IC

SA23. Wide/Narrow AGC
D7
D6
W_AGC3
W_AGC2
D5
W_AGC1
LV25700PM
D4
W_AGC0
D3
N_AGC3
D2
N_AGC2
D1
N_AGC1
D0
N_AGC0
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
FM Narrow AGC ON = 67.8dBμ
0
0
0
0
AM Narrow AGC ON = 68.0dBμ
FM Narrow AGC ON = 68.0dBμ
0
0
0
1
AM Narrow AGC ON = 68.5dBμ
↓
FM Narrow AGC ON = 80dBμ
1
1
1
0
AM Narrow AGC ON = 82.7dBμ
FM Narrow AGC ON = 81dBμ
1
1
1
1
AM Narrow AGC ON = 83.6dBμ
0
0
0
0
FM Wide AGC ON = 94.5dBμ
AM Wide AGC ON = 89.0dBμ
0
0
0
1
FM Wide AGC ON = 94.7dBμ
AM Wide AGC ON = 89.3dBμ
↓
1
1
1
0
1
1
1
1
FM Wide AGC ON = 98.1dBμ
AM Wide AGC ON = 104.5dBμ
FM Wide AGC ON = 98.4dBμ
AM Wide AGC ON = 105.2dBμ
Function
SA24.
D7
D6
D5
MSLOPE
AM_NC_OFF
-
D4
VCO_ON
D3
D2
ST_SENS_ADJ FORCENOAGC
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
* Reference value
D1
D0
-
-
MSB
LSB
D7 D6 D5 D4 D3 D2 D1 D0
Function
0 Not used. Fixed at 0.
0
Not used. Fixed at 0.
0
Force Noise AGC = OFF
1
Force Noise AGC = ON
0
Stereo ON sensitivity adjustment = 3%
1
Stereo ON sensitivity adjustment = 2% (ST sense up)
0
MPX VCO monitor = Normal
1
MPX VCO monitor = ON
0
Not used. Fixed at 0.
0
Normal
1
AM_NC_OFF
SLOPE × 2.0: Change in Mute voltage with respect to change in S-meter voltage
0
The first slope is x1, the second slope is x4
(Limiting is set to weak electric field, but cannot reduce the noise convergence.)
SLOPE × 1.0: Change in Mute voltage with respect to change in S-meter voltage
1
The first slope is x1, the second slope is x4
(normal)
No.A1709-51/68