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參數(shù)資料
| 型號： | TDA4885 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 英文描述： | 150 MHz video controller with I2C-bus |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PDIP32 |
| 封裝： | 0.400 INCH, PLASTIC, SOT-232-1, SDIP-32 |
| 文件頁數(shù)： | 13/56頁 |
| 文件大小： | 396K |
| 代理商： | TDA4885 |
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1997 Nov 25
13
Philips Semiconductors
Product specification
150 MHz video controller with I
2
C-bus
TDA4885
Fast blanking (pin 1) and OSD signal insertion (channel 1: pin 2; channel 2: pin 3; channel 3: pin 4);
note 13
V
1
fast blanking input signal
no video signal blanking, OSD
signal insertion disabled
video signal blanking, OSD
signal insertion enabled
V
1
> 1.7 V
no internal OSD signal
insertion
internal OSD signal insertion
90 to 10% amplitude; start of
fast blanking pulse at pin 1 with
1.2 ns/V; note 14; see Fig.10
10 to 90% amplitude; end of
fast blanking pulse at pin 1 with
1.2 ns/V; note 14; see Fig.10
10 to 90% amplitude; input
pulse with 1.2 ns/V; see Fig.10
90 to 10% amplitude; input
pulse with 1.2 ns/V; see Fig.10
identical pulses with 1.2 ns/V at
fast blanking input (pin 1) and
OSD signal inputs (pins 2,
3 and 4); note 15; see Fig.10
identical pulses with 1.2 ns/V at
fast blanking input (pin 1) and
OSD signal inputs (pins 2,
3 and 4); note 15; see Fig.10
OSD input pulse (pins 2, 3
and 4) with 1.2 ns/V; V
1
>
1.7 V
0
1.1
V
1.7
V
P
1
V
V
2, 3, 4
OSD input signal
0
1.1
V
1.7
V
P
1
10
V
ns
t
f(FBL)
fall time of colour signals
(pins 30, 25 and 20)
t
r(FBL)
rise time of colour signals
(pins 30, 25 and 20)
10
ns
t
r(OSD)
rise time of OSD colour signals
4
ns
t
f(OSD)
fall time of OSD colour signals
7
ns
t
g(CO)
width of (negative going) OSD
signal insertion glitch, leading
edge
6
ns
t
g(OC)
width of (negative going) OSD
signal insertion glitch, trailing
edge
6
ns
dV
OSD
overshoot/undershoot of OSD
colour signal related to actual
OSD output pulse amplitude
time of OSD signal overshoot
exceeding 10%
maximum OSD colour signal
related to nominal colour signal
13
20
%
t
over
OSD input pulse (pins 2, 3
and 4) with 1.2 ns/V; V
1
>
1.7 V
maximum OSD contrast;
maximum gain; pins 12,
13 and 14 connected to ground
2
ns
V
OSD(max)
100
125
150
%
OSD contrast control;
see Fig.11 and note 16
d
OC
OSD colour signal related to
maximum OSD colour signal
00H (minimum)
0FH (maximum)
14
12
0
10
dB
dB
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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