參數(shù)資料
型號: TDA9874H
廠商: NXP SEMICONDUCTORS
元件分類: 接收器
英文描述: Digital TV sound demodulator/decoder
中文描述: AM/FM, AUDIO DEMODULATOR, PQFP44
封裝: 14 X 14 MM, 2.20 MM HEIGHT, PLASTIC, SOT-205-1, QFP-44
文件頁數(shù): 6/56頁
文件大?。?/td> 254K
代理商: TDA9874H
1998 Apr 27
6
Philips Semiconductors
Preliminary specification
Digital TV sound demodulator/decoder
TDA9874H
4
BLOCK DIAGRAM
Fig.1 Block diagram.
handbook, full pagewidth
MGL248
NICAM
DEMODULATION
TIMING
DETECTION
DAC
FM/AM
DEMODULATION
NICAM
DECODER
2 CHANNEL
ANALOG/
SATELLITE
DECODER
POSTFILTER
2 DACS
SUPPLY DAC
SUPPLY
OPERATIONAL
AMPLIFIERS
REFERENCE
ANALOG
CROSSBAR
SWITCH
AF-OUPUT
BUFFERS
TEST
DIGITAL
SELECTOR
DIGITAL
SUPPLY
VCXO
CLOCK
DEMATRIX
LEVEL
ADJUST
IDENTIFICATION
SDA
SCL
ADDR2
ADDR1
P2
P1
37
42
13
19
29
30
NICAM
PCLK
10
12
Vtune
14
VDDD1
VSSD1
VDDD2
VSSD2
VDDD3
VSSD3
VDDD4
VSSD4
CRESET
6
5
8
7
VDDA2
VSSA2
Vref1
21
20
24
Iref
18
28
27
35
36
26
VDDA1
VSSA1
3
4
Vref2
41
VDDA3
43
VSSA3
44
39
40
38
EXTIR
EXTIL
MONOIN
XTALI
15
XTALO
16
SYSCLK
34
SDO
31
WS
32
SCK
33
TEST1
TEST2
TP1
TP2
22
17
11
9
2
1
OUTR
OUTL
I
2
C-BUS
INTERFACE
I
2
S-BUS
INTERFACE
SUPPLY
SIF
INPUT SWITCH
AGC, ADC
SIF2
23
SIF1
25
TDA9874H
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