參數(shù)資料
型號: 935260827112
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PDIP32
封裝: 0.400 INCH, PLASTIC, SOT-232, SDIP-32
文件頁數(shù): 33/38頁
文件大小: 300K
代理商: 935260827112
1998
Feb
09
4
Philips
Semiconductors
Product
specication
Multistandard
VIF-PLL
with
QSS-IF
and
AM
demodulator
TDA981
1
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BLOCK
DIAGRAM
Fig.1 Block diagram.
b
ook,
full
pagewidth
SINGLE REFERENCE
MIXER AND
AM DEMODULATOR
VCO TWD
AFC DETECTOR
TUNER AND VIF-AGC
VIF input switch
FPLL
VIDEO DEMODULATOR
AND AMPLIFIER
SIF
AMPLIFIER
SIF-AGC
INTERNAL VOLTAGE
STABILIZER
VIF AMPLIFIER
AND
INPUT SWITCH
SIF
VIFB
VIFA
TDA9811
29
27
26
9
8
10
21
22
12
23
24
25
7
19
28
30
6
3
5
4
2
1
32
31
5 V
VP
1/2
C SAGC
standard
switch
20
17
13
14
AF AMPLIFIER
AND SWITCH
AF/AM
n.c.
18
11
n.c.
16
n.c.
15
n.c.
VIDEO
BUFFER
CVBS
2 V (p-p)
video
1 V (p-p)
AFC
2 x f PC
tuner
AGC
loop
filter
TOP
CVAGC
CBL
MHA046
mute switch, AM
(2nd SIF)
Vo QSS
L/L accent
switch
Vi(vid)
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