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參數(shù)資料
| 型號(hào)： | TDA4681WP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Video processor with automatic cut-off and white level control |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQCC28 |
| 封裝： | PLASTIC, SOT-261-2, LCC-28 |
| 文件頁(yè)數(shù)： | 14/28頁(yè) |
| 文件大?。?/td> | 160K |
| 代理商： | TDA4681WP |
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1997 Mar 04
14
Philips Semiconductors
Product specification
Video processor with automatic cut-off
and white level control
TDA4681
RGB outputs (pins 24, 22 and 20; positive going output signals and no peak drive limitation;
subaddress 0AH = 3FH);
note 4
V
o(b-w)
nominal output signals
(black-to-white value)
maximum output signals
(black-to-white value)
spread between RGB output signals
minimum output voltages
maximum output voltages
voltage of cut-off measurement line
2.0
V
3.2
V
V
o
V
o(min)
V
o(max)
V
24,22,20
6.8
2.3
2.5
10
0.8
2.7
%
V
V
V
output clamping;
BCOF = 1
I
int
R
o
internal current sources
output resistance
5.0
65
110
mA
Frequency response
f
res
frequency response of Y path
(from pin 8 to pins 24, 22 and 20)
frequency response of CD path
(from pins 7 to 24 and 6 to 20)
frequency response of RGB
1
path
(from pins 10 to 24, 11 to 22 and
12 to 20)
frequency response of RGB
2
path
(from pins 2 to 24, 3 to 22 and
4 to 20)
f = 10 MHz
3
dB
f = 8 MHz
3
dB
f = 10 MHz
3
dB
f = 10 MHz
3
dB
Sandcastle pulse detector (pin 14)
C
ONTROL BIT
SC5 = 0; 3-
LEVEL
; notes 5 and 6
V
14
sandcastle pulse voltage
for horizontal and vertical blanking
pulses
for horizontal pulses (line count)
for burst key pulses
2.0
2.5
3.0
V
4.0
6.3
4.5
5.0
V
P
+ 0.7 V
V
C
ONTROL BIT
SC5 = 1; 2-
LEVEL
; note 5
V
14
sandcastle pulse voltage
for horizontal and vertical blanking
pulses
for burst key pulses
2.0
2.5
3.0
V
4.0
4.5
V
P
+ 0.7 V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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