TDA9874H データシートの表示（PDF） - Philips Electronics
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TDA9874H Datasheet PDF : 56 Pages
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Philips Semiconductors
Digital TV sound demodulator/decoder
Preliminary specification
TDA9874H
4 BLOCK DIAGRAM
handbook, full pagewidth
P1
P2
ADDR1
37
42
13
ADDR2
SCL
SDA
19
29
30
XTALI 15
XTALO 16
SYSCLK 34
SDO 31
WS 32
SCK 33
TEST1 22
TEST2
TP1
TP2
17
11
9
I2C-BUS
INTERFACE
SIF2
23
SIF1
25
INPUT SWITCH
AGC, ADC
SUPPLY
SIF
21
20
24
18
VDDA2
VSSA2
Vref1
Iref
IDENTIFICATION
VCXO
CLOCK
I2S-BUS
INTERFACE
TDA9874H
FM/AM
DEMODULATION
DEMATRIX
2 CHANNEL
ANALOG/
SATELLITE
DECODER
DIGITAL
SELECTOR
NICAM
DEMODULATION
NICAM
DECODER
LEVEL
ADJUST
POSTFILTER
2 DACS
ANALOG
CROSSBAR
SWITCH
TIMING
DETECTION
DAC
DIGITAL
SUPPLY
SUPPLY DAC
REFERENCE
SUPPLY
OPERATIONAL
AMPLIFIERS
14 Vtune
10
12
NICAM
PCLK
6
5
8
7
28
27
35
36
26
VDDD1
VSSD1
VDDD2
VSSD2
VDDD3
VSSD3
VDDD4
VSSD4
CRESET
3
4
VDDA1
VSSA1
41 Vref2
43 VDDA3
44
VSSA3
39
40
38
EXTIR
EXTIL
MONOIN
TEST
AF-OUPUT
BUFFERS
2
OUTR
1
OUTL
MGL248
Fig.1 Block diagram.
1998 Apr 27
6
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