參數(shù)資料
型號(hào): TDA4780
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: RGB video processor with automatic cut-off control and gamma adjust
中文描述: SPECIALTY CONSUMER CIRCUIT, PDIP28
封裝: 0.600 INCH, PLASTIC, DIP-28
文件頁(yè)數(shù): 4/44頁(yè)
文件大?。?/td> 321K
代理商: TDA4780
1997 Feb 06
4
Philips Semiconductors
Preliminary specification
RGB video processor with automatic
cut-off control and gamma adjust
TDA4780
BLOCK DIAGRAM
Fig.1 Block diagram (continued in Fig.2).
handbook, full pagewidth
j
i
h
g
e
f
d
c
b
a
MGE875
200
μ
F
1
μ
F
CLAMP
TDA4780
CLAMP
CLAMP
0.45 V
1.43 V
PAL / SECAM
NTSC
MATRIX
INPUT
SELECTOR
F
F
F
F
Y - MATRIX
COLOUR
DIFFERENCE
MATRIX
ADAPTIVE
BLACK
Y
Y
YBL
GAMMA
Y BL
SATURATION
ADJUST
HUE
ADJUST
BANDGAP
REFERENCE
SUPPLY
CONTROL REGISTERS
TCPL
RELC
BCOF
YEXH
HDTV
FSBL
DELOF
SC5
YHI
REGISTERS
DIGITAL TO ANALOG CONVERTERS
I
2
C-BUS
RECEIVER
SANDCASTLE
DETECTOR
8 DATA
BREN
V
SC5
DELOF
B
G
R
CL
HV
(H)
NMEN
10
11
12
R1
G1
B1
R2
G2
B2
2
3
4
6
7
8
(B
Y)
(B
Y)
(R
Y)
(R
Y)
Y
Y
47 nF
10 nF
10 nF
10 nF
10 nF
10 nF
10 nF
10 nF
10 nF
13
FSW1
FSW2
1
FSW1
FSW2
18
26
CPDST
YHUE
GND
9
5
VP
UGAP
14
SC
27
SDA
28
SCL
R1
G1
B1
R2
G2
B2
ADBL
R
Y
G
Y
B
Y
R
G
B
R
G
B
Y
YEXH
UGAP
sandcastle input
I
2
C-bus
VP = 8 V
Y - output /
hue adjust
output
pstorage
6 DATA
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