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參數(shù)資料
| 型號： | TDA4657T |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 顏色信號轉(zhuǎn)換 |
| 英文描述： | DIODE SCHOTTKY 30V 30A TO220AB |
| 中文描述： | COLOR SIGNAL DECODER, PDSO20 |
| 封裝： | 7.50 MM, PLASTIC, MS-013AC, SOT-163-1, SOP-20 |
| 文件頁數(shù)： | 4/17頁 |
| 文件大?。?/td> | 121K |
| 代理商： | TDA4657T |
June 1993
4
Philips Semiconductors
Preliminary specification
Generic multi-standard decoder
TDA4657
PINNING
SYMBOL
(R
Y)
O
DEEM
(B
Y)
O
CFOB
GND
I
REF
V
P
CFOR
CHR
I
C
ACC
HUE
N
IDT
P
IDT
OSC
PLL
2FSC
N
o
SEC
o
PAL
o
SC
PIN
DESCRIPTION
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
colour difference signal output
(R
Y)* for baseband delay line
external capacitor for SECAM de-emphasis
colour difference signal output
(B
Y)* for baseband delay line
external capacitor SECAM demodulator control (B
Y) Channel
ground
external resistor for SECAM oscillator
supply 8 V
external capacitor SECAM demodulator control (R
Y) Channel
chrominance signal input
external capacitor for ACC control
input for HUE control and service switch
external capacitor for identification circuit (NTSC)
external capacitor for identification circuit (PAL and SECAM)
PAL crystal
external loop filter
2
×
f
sc
output
standard setting input/output for NTSC 4.43
standard setting input/output for SECAM
standard setting input/output for PAL
sandcastle input
Fig.2 Pin configuration.
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