參數(shù)資料
型號： TDA4884
廠商： NXP SEMICONDUCTORS
元件分類： 音頻／視頻放大
英文描述： Advanced monitor video controller for OSD
中文描述： 3 CHANNEL, VIDEO PREAMPLIFIER, PDIP20
封裝： 0.300 INCH, PLASTIC, SOT-146-1, DIP-20
文件頁數(shù)： 9/28頁
文件大?。?/td> 189K
代理商： TDA4884
1997 Nov 26
9
Philips Semiconductors
Product specification
Three gain control video pre-amplifier for OSD
TDA4884
Gain control (pins 3, 1 and 11);
note 6
V
i(GC)
V
i(GC)(nom)
R
i(GC)
G
input voltage
input voltage for nominal gain
input resistance
gain control difference relative to
nominal gain
1.0
3.75
55
2.6
5
6.0
3.95
66
3.3
4.5
V
V
k
dB
dB
pins 3, 1 and 11 open-circuit 3.6
44
2
5.5
V
i(CC)
= 4.3 V; V
i(GC)
= 6 V
V
i(CC)
= 4.3 V; V
i(GC)
= 1 V
Feedback input (pins 18, 15 and 12);
note 7
V
ref(int)
I
O(FB)(max)
internal reference voltage
maximum output current
5.6
500
5.8
100
6.1
60
V
nA
during output clamping;
V
i(FB)
= 3 V
note 8
T
amb
=
20 to +70
°
C
V
bl(CRT)
V
ref(T)
black-level variation at CRT
variation of V
ref(int)
in the
temperature range
variation of V
ref(int)
with supply
voltage
0
0
40
20
200
50
mV
mV
V
ref(VP)
7.2 V
≤
V
P
≤
8.8 V
0
60
100
mV
Voltage outputs (pins 19, 16 and 13);
note 1
V
o(b-w)(nom)
nominal signal output voltage
(black-to-white value)
pins 3, 1 and 11
open-circuit; V
i(CC)
= 4.3 V;
V
i(b-w)
= 0.7 V
during output clamping;
T
amb
=
20 to +70
°
C
V
i(HBL)
= V
P
; R
O
= 33
;
T
amb
=
20 to +70
°
C
0.69
0.79
0.89
V
V
blx(max)
maximum adjustable black-level
voltage
black-level voltage during
switch-off, equal to minimum
adjustable black-level voltage
black-level voltage during test
mode
1
1.2
1.4
V
V
bl(SO)
30
45
100
mV
V
bl(TST)
V
i(HBL)
= V
P
; V
i(CL)
= V
P
;
pin 1 open-circuit;
V
i
= V
I(clamp)
; note 9
nominal contrast; pins 3, 1
and 11 open-circuit
3 dB
note 10
I
o(b-w)
= 50 mA; note 11
line frequency = 30 kHz
0.3
0.7
1.2
V
G
nom
nominal gain (pins 2, 5 and 8 to
pins 19, 16 and 13)
bandwidth
signal-to-noise ratio
output thermal distortion
black-level variation between
clamping pulses
maximum offset during sync
clipping
variation of nominal output signal
(black-to-white value) with
temperature
1
dB
B
S/N
d
O(th)
V
bl(fl)
70
85
50
0.6
0.5
44
1
4.5
MHz
dB
%
mV
V
offset(max)
V
i
< V
I(clamp)
; note 12
0
7
15
mV
V
o(b-w)(T)
pins 3, 1 and 11
open-circuit; V
i(CC)
= 4.3 V;
V
i(b-w)
= 0.7 V;
T
amb
=
20 to +70
°
C
0
2.5
10
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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