TDA7514 datasheet(57/74 Pages) STMICROELECTRONICS

57 / 74 page

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

LSB

FUNCTION

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

MSB

LSB

FUNCTION

Max/Min High Cut Frequency (***)

00000

20 kHz/ 10 kHz

00001

.....

11111

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

TDA7514 数据表(PDF) 57 Page - STMicroelectronics

TDA7514 数据表(HTML) 57 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74

数据表下载