參數(shù)資料
型號: TDA7514
廠商: 意法半導(dǎo)體
英文描述: SINGLE-CHIP FM/AM TUNER WITH STEREO DECODER AND AUDIO PROCESSOR
中文描述: 單芯片F(xiàn)M /調(diào)幅調(diào)諧立體聲解碼器和音頻處理器
文件頁數(shù): 57/74頁
文件大?。?/td> 604K
代理商: TDA7514
57/74
TDA7514
Table 63. SUBADDRESS 17: High cut, Noise Blanker, ADC, Stdec in Switch
(**) cfr. HCC/SB threshold table
Table 64.
SUBADDRESS 18: High Cut
(***) High Cut LPF corner frequency formula:
fhicut = fmax / ( 1 + N / 7.75)
with N = 0,1,..,31
and fmax = 4 kHz, 10 kHz or 20 kHz according to byte 28 bit 3 and 4
MSB
D7
LSB
D0
FUNCTION
D6
D5
D4
D3
D2
D1
Stereo decoder input switch
switch closed (signal can go into stereo decoder)
switch open (signal can not gon into stereo decoder)
Minimun and maximun Smeter thresholds for NB
2.2 , 4.3
3.2 , 4.6
2.7 , 4.5
3.7 , 4.7
NB max PEAK value generated from Smeter
1.8 V
1.5 V
1.1 V
OFF
HCC threshold generation mode (VHCH, VHCL)(**)
SNC OFF
SNC ON
Smeter ADC operation
ADC Convert Stop
ADC Convert Start
AM/FM mode selection for StereoDecoder
FM mode
AM mode
0
1
0
0
1
1
0
1
0
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
MSB
D7
LSB
D0
FUNCTION
D6
D5
D4
D3
D2
D1
Max/Min High Cut Frequency (***)
20 kHz/ 10 kHz
.
0
0
.
1
0
0
.
1
0
0
.
1
0
0
.
1
0
1
.
1
4 kHz/ 2 kHz
AM 7.2kHz LPF OFF
AM 7.2kHz LPF ON
High Cut Filter limiting (AM)
Fix Maximum High Cut Frequency
Fix Minimum High Cut Frequency
Fixed High Cut OFF
Fixed High Cut ON
0
1
0
1
0
1
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