TDA7514 STMicroelectronics, TDA7514 Datasheet - Page 57

• Manufacturer Part Number: TDA7514
• Description: SINGLE-CHIP FM/AM TUNER
• Manufacturer: STMicroelectronics

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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
MSB
D7
D7
0
1
0
1
D6
0
1
D6
0
1
D5
0
1
D5
0
1
D4
0
0
1
1
D4
0
0
1
.
D3
0
1
0
1
D3
0
0
1
.
D2
0
0
1
1
D2
0
0
1
.
D1
0
1
0
1
LSB
D1
D0
0
0
1
.
0
1
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
LSB
D0
0
1
1
.
Max/Min High Cut Frequency (***)
20 kHz/ 10 kHz
.
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
FUNCTION
FUNCTION
TDA7514
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