參數(shù)資料
型號(hào)： TDA4685
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： Video processor with automatic cut-off control
中文描述： SPECIALTY CONSUMER CIRCUIT, PDIP28
封裝： 0.600 INCH, PLASTIC, SOT-117-1, MO-015AH, DIP-28
文件頁(yè)數(shù)： 13/24頁(yè)
文件大?。?/td> 129K
代理商： TDA4685
1997 Jun 20
13
Philips Semiconductors
Product specification
Video processor with automatic cut-off control
TDA4685
RGB outputs (pins 24, 22 and 20; positive going output signals; peak drive limiter set = 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
equivalent to voltage during
ultra-black
internal current sources
output resistance
2.0
V
3.0
V
V
o
V
o
6.8
2.3
2.5
10
0.8
2.7
%
V
V
V
V
24,22,20
output clamping;
BCOF = 1
I
int
R
o
5.0
20
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 (clamping)
2.0
2.5
3.0
V
4.0
7.6
4.5
5.0
V
P
+ 5.8 V
V
C
ONTROL BIT
SC5 = 1; 2-
LEVEL
; notes 5 and 6
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
+ 5.8 V
G
ENERAL
I
14
t
d
output current
leading edge delay of the clamping
pulse
V
14
= 0 V
1.5
100
μ
A
μ
s
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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