E-TDA7514 View Datasheet(PDF) - STMicroelectronics
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E-TDA7514 Datasheet PDF : 74 Pages
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TDA7514
Table 38. SUBADDRESS 22: Seek, ISS Adjacent Channel Detector
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
ISS adjacent channel detect. filter shape
Filt1
Filt2
Fo
Q
0
0
HP
HP
130
2.3
0
1
BP
HP
100
7.7
1
0
BP
BP
177
2.0
1
1
BP
BP
100
8.4
ISS adjacent channel detect. filter gain
0
23 dB
1
29 dB
ISS adjacent channel detect. filter desens
threshold at weak field strength
0
0
0.25 V
0
1
0.8 V
1
0
1.3 V
1
1
1.8 V
ISS adjacent channel detect. filter desens
slope at weak field strength
0
0
min
0
1
-
1
0
-
1
1
max
Seek
FM
AM AGC2 tau
0
Seek OFF -
-
1
Seek ON ISS disable short
Table 39. SUBADDRESS 23: FM mixer1 adjust, FM AGC
MSB
LSB
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
0
0
0
0
1
0
0
1
0
-
-
-
-
0
1
1
1
1
0
0
0
1
0
0
1
-
-
-
-
1
1
1
1
0
0
0
1
1
0
1
1
x
0
1
FUNCTION
FM mixer1 phase adjust.
-7°
-6°
-5°
-
0°
+1°
+2°
-
+8°
FM mixer1 gain adjust.
0%
-1%
1%
0%
FM NAGC threshold MSB (LSB in byte 26)
FM AGC topology
NAGC on, KAGC off
NAGC off, KAGC on
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