TDA9875 Philips Semiconductors, TDA9875 Datasheet - Page 6

• Manufacturer Part Number: TDA9875
• Description: Digital TV Sound Processor DTVSP
• Manufacturer: Philips Semiconductors

Philips Semiconductors
4
1998 Feb 13
handbook, full pagewidth
Digital TV Sound Processor (DTVSP)
BLOCK DIAGRAM
CRESET
SYSCLK
ADDR1
ADDR2
V DDD1
V DDD2
V SSD1
V SSD2
XTALO
TEST1
TEST2
SDO1
SDO2
XTALI
SDI1
SDI2
SDA
SCK
SCL
WS
P1
P2
9
20
3
13
4
5
27
26
25
24
22
23
15
64
14
49
16
28
30
18
17
21
IDENTIFICATION
DETECTION
INTERFACE
INTERFACE
TDA9875
CLOCK
I
I
SUPPLY
DIGITAL
2
2
AUDIO
PEAK
TEST
C-BUS
C-BUS
DEMODULATION
Fig.1 Block diagram.
MOL
DEMATRIX
FM (AM)
ADJUST
DIGITAL
SELECT
DAC(2)
LEVEL
61
SIF2
AUDIO PROCESSING
MOR
10
INPUT SWITCH
60
AGC, ADC
6
DEMODULATION
AUXOL
DECODER
ADJUST
ADC(2)
DAC(2)
NICAM
NICAM
LEVEL
DAC(2)
58
SIF1
12
AUXOR
57
SUPPLY DAC
REFERENCE
OPERATIONAL
DETECTION DAC
AMPLIFIERS
SUPPLY
SUPPLY
CROSSBAR
SOUND IF
DAC
ANALOG
SUPPLY
SWITCH
TIMING
(SIF)
MGK107
47
48
51
52
63
62
42
41
45
44
54
38
43
11
19
33
34
36
37
31
32
29
55
35
46
39
40
59
56
53
50
7
6
8
2
1
SCOR1
SCOL1
SCOR2
SCOL2
LOR
LOL
CAPL2
CAPL1
CAPR1
CAPR2
PCAPR
PCAPL
V DDA2
V SSA2
V SSG
V ref2
V ref(p)
V ref(n)
V DDA3
V SSA3
V ref3
V SSA4
V DDA1
V SSA1
V ref1
I ref
V tune
NICAM
PCLK
Preliminary specification
SCIR1
SCIL1
SCIR2
SCIL2
EXTIR
EXTIL
MONOIN
TDA9875