TDA9875 Ver la hoja de datos (PDF) - Philips Electronics
Número de pieza
componentes Descripción
fabricante
TDA9875 Datasheet PDF : 92 Pages
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Philips Semiconductors
Digital TV Sound Processor (DTVSP)
Preliminary specification
TDA9875
4 BLOCK DIAGRAM
handbook, full pagewidth
9
P1
20
P2
3
ADDR1
13
ADDR2
4
SCL
5
SDA
18
XTALI
17
XTALO
21
SYSCLK
I2C-BUS
INTERFACE
SIF2
10
SIF1
12
INPUT SWITCH
AGC, ADC
SUPPLY
SOUND IF
(SIF)
7
6
VDDA1
11
VSSA1
8
Vref1
Iref
IDENTIFICATION
CLOCK
PEAK
DETECTION
FM (AM)
DEMODULATION
NICAM
DEMODULATION
DEMATRIX
NICAM
DECODER
LEVEL
ADJUST
LEVEL
ADJUST
TIMING
DETECTION DAC
ANALOG
CROSSBAR
SWITCH
19
Vtune
2
NICAM
1
PCLK
33
SCIR1
34
SCIL1
36
SCIR2
37
SCIL2
31
EXTIR
32
EXTIL
29
MONOIN
47
SCOR1
48
SCOL1
51
SCOR2
52
SCOL2
63
LOR
62
LOL
27
SDI1
26
SDI2
25
SDO1
24
SDO2
22
SCK
23
WS
VDDD1
15
VDDD2
64
VSSD1 14
VSSD2 49
16
CRESET
I2C-BUS
AUDIO
INTERFACE
DIGITAL
SUPPLY
TDA9875
TEST1 28
30
TEST2
TEST
DIGITAL
SELECT
ADC(2)
42
CAPL2
41
CAPL1
45
CAPR1
44
CAPR2
DAC(2)
AUDIO PROCESSING
SUPPLY
DAC
DAC(2)
DAC(2)
SUPPLY DAC
REFERENCE
61 60
58 57
MOL MOR
AUXOL AUXOR
Fig.1 Block diagram.
SUPPLY
OPERATIONAL
AMPLIFIERS
54
PCAPR
55
PCAPL
38
VDDA2
43
VSSA2
35
VSSG
46
Vref2
39
Vref(p)
40
Vref(n)
59
VDDA3
56
VSSA3
53
Vref3
50
VSSA4
MGK107
1998 Feb 13
6
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