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TDA7540N датащи(PDF) 49 Page - STMicroelectronics

номер детали TDA7540N
подробное описание детали  AM/FM car radio tuner IC with stereo decoder and intelligent selectivity system (ISS)
PDF  76 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

TDA7540N датащи(HTML) 49 Page - STMicroelectronics

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TDA7540N
Software specification
49/76
0
Switch “OFF” ISS filter 120kHz
1
Switch “ON” ISS filter 80kHz
0
Switch “OFF” ISS filter 30KHz for weatherband
1
Switch “ON” ISS filter 30KHz for weatherband
000
discharge current1µA, charge current mid 74µA
narrow124µA
001
discharge current3µA, charge current mid 72µA
narrow122µA
010
discharge current5µA, charge current mid 70µA
narrow120µA
011
discharge current7µA, charge current mid 68µA
narrow118µA
--
-
-
111
discharge current15µA,charge current mid 60µA
narrow110µA
Table 21.
Addr 9 quality detection adjacent channel
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0
0
dc-coupling deviation detector (has to be 0 in AM mode)
1
ac-coupling deviation detector (recommended mode)
0
AC highpass frequency 100kHz
1
AC bandpass frequency 100kHz
0
AC gain 32dB
1
AC gain 38dB
0
0
0
AC wide band threshold 0.25V
0
0
1
AC wide band threshold 0.35V
0
1
0
AC wide band threshold 0.45V
---
-
1
1
1
AC wide band threshold 0.95V
0
0
AC narrow band threshold 0.0V
0
1
AC narrow band threshold 0.1V
1
0
AC narrow band threshold 0.2V
1
1
AC narrow band threshold 0.3V
Table 20.
Addr 8 quality ISS filter (continued)
MSB
LSB
Function
d7
d6
d5
d4
d3
d2
d1
d0



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