參數(shù)資料
型號: TDA7540NTR
廠商: STMICROELECTRONICS
元件分類: 調(diào)諧器
英文描述: 2-BAND, AUDIO TUNER, PQFP80
封裝: 14 X 14 MM, 1.40 MM HEIGHT, ROHS COMPLIANT, LQFP-80
文件頁數(shù): 44/76頁
文件大小: 1225K
代理商: TDA7540NTR
TDA7540N
Software specification
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 current1A, charge current mid 74A
narrow124A
001
discharge current3A, charge current mid 72A
narrow122A
010
discharge current5A, charge current mid 70A
narrow120A
011
discharge current7A, charge current mid 68A
narrow118A
--
-
111
discharge current15A,charge current mid 60A
narrow110A
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
AC wide band threshold 0.25V
0
1
AC wide band threshold 0.35V
0
1
0
AC wide band threshold 0.45V
---
-
1
AC wide band threshold 0.95V
0
AC narrow band threshold 0.0V
0
1
AC narrow band threshold 0.1V
1
0
AC narrow band threshold 0.2V
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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