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TDA7402 Datasheet(PDF) 52 Page - STMicroelectronics

Part # TDA7402
Description  CARRADIO SIGNAL PROCESSOR
PDF  59 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7402 Datasheet(HTML) 52 Page - STMicroelectronics

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9.6.19Noiseblanker II (24)
9.6.20AM / FM-Noiseblanker (25)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
PEAK charge current
low
high
0
0
1
1
0
1
0
1
Fieldstrength adjust
2.3V
1.8V
1.3V
OFF
0
0
1
1
0
1
0
1
Blank Time FM / AM
38
µs / 1.2ms
25.5
µs/ 800µs
32
µs / 1.0s
22
µs / 640µs
0
0
1
1
0
1
0
1
Noise Rectifier Discharge Resistor
R = infinite
RDC =56k
RDC =33k
RDC =18k
0
1
Strong Multipath influence on PEAK 18k
off
on (18k discharge if VMPout< 2.5V)
MSB
LSB
FUNCTION
D7
D6
D5
D4
D3
D2
D1
D0
0
1
Stereodecoder Mode
FM
AM
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
AM Rectifier Gain
6dB
8dB
10dB
12dB
14dB
16dB
18dB
20dB
0
0
1
1
0
1
0
1
Rectifier Cut-Off Frequency
14.0kHz
18.5kHz
28.0kHz
56.0kHz
11
must be ”1”



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