参数资料
型号: TDA7421N
厂商: STMICROELECTRONICS
元件分类: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封装: TQFP-64
文件页数: 33/47页
文件大小: 374K
代理商: TDA7421N
TDA7421N
Data byte specification
00
001
48
XXX
XX
11
111
1500
all combinations allowed
IF2 amplifier gain
0
50dB
0
1
53dB
1
0
56dB
1
59dB
Table 28.
FM smeter slider\IF2 amplifier (subaddress 02H) (continued)
MSB
LSB
Function
FSL4
FSL3
FSL2
FSL1
FSL0
IF2A1
IF2A0
FM
smeter
slider
MSB
FM
smeter
slider
FM
smeter
slider
FM
smeter
slider
FM
smeter
slider
LSB
AM if
2Amp
MSB
AM if
2Amp
LSB
Table 29.
AM stop station / AM AGC1 (subaddress 03H)
MSB
LSB
Function
ASS3
ASS2
ASS1
ASS0
AAGN1
AAGN0 AAGW1 AAGW0
AM
stop
station
MSB
AM
stop
station
AM
stop
station
AM
stop
station
LSB
AM
NAGC
MSB
AM
NAGC
LSB
AM
WAGC
MSB
AM
WAGC
LSB
AM WAGC threshold
0
Minimum sensitivity
XX
1
Maximum sensitivity
all comb. allowed
AM NAGC threshold
0
Minimum sensitivity
XX
1
Maximum sensitivity
all comb. allowed
AM stop station threshold
0
Maximum sensitivity
XXX
X
1
Minimum sensitivity
all combinations allowed
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