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參數(shù)資料
| 型號： | TDA4780 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 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 |
| 文件頁數(shù)： | 22/44頁 |
| 文件大?。?/td> | 321K |
| 代理商： | TDA4780 |
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1997 Feb 06
22
Philips Semiconductors
Preliminary specification
RGB video processor with automatic
cut-off control and gamma adjust
TDA4780
O
VERALL WHITE POINT DEVIATION
V/V
nom
note 10
input: (RGB)
1, 2
;
differences from
channel to channel of
the ratio of the
difference (signal white
level cut-off
measurement level) to
actual nominal signal
amplitude (V
nom24
,
V
nom22
, V
nom20
) over the
whole saturation range
at nominal contrast,
brightness and nominal
input signals; ripple on
pin 5 during clamping
≤
1 mV; note 7
2.0
+2.0
%
Frequency behaviour
B
ETWEEN THE
Y
INPUT
(
PIN
8)
AND THE
RGB
OUTPUTS
(
PINS
24, 22
AND
20)
G
decrease in gain
1 M
and 20 pF load at
13 MHz
3
dB
B
ETWEEN THE COLOUR
-
DIFFERENCE INPUTS
(
PINS
7
AND
6)
AND THE CORRESPONDING
R
AND
B
OUTPUTS
(
PINS
24
AND
20)
G
decrease in gain
at 13 MHz
3
dB
B
ETWEEN THE
(RGB)
1, 2
INPUTS
(
PINS
10, 11
AND
12
OR
2, 3
AND
4)
AND THE
RGB
OUTPUTS
(
PINS
24, 22
AND
20)
G
decrease in gain
at 22 MHz
3
dB
Sandcastle input (pin 14; control bit SC5);
note 11
I
14
C
14-9
V
14
input current
input capacitance
required voltage range
for horizontal and vertical blanking
pulses
for horizontal pulses (line count)
for burst key pulses
V
14
< 0.5 V
100
10
μ
A
pF
SC5 = 0 or SC5 = 1
2.0
2.5
3.0
V
SC5 = 0
SC5 = 0
4.0
6.1
4.5
4.9
V
P
+
5.8
V
P
+
5.8
V
V
for burst key pulses and line count
SC5 = 1
4.0
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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