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參數(shù)資料
| 型號(hào)： | TDA4780 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)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(yè)數(shù)： | 24/44頁(yè) |
| 文件大?。?/td> | 321K |
| 代理商： | TDA4780 |
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1997 Feb 06
24
Philips Semiconductors
Preliminary specification
RGB video processor with automatic
cut-off control and gamma adjust
TDA4780
R
26
τ
26
differential output resistance
group delay time
20
190
25
230
30
ns
between RGB outputs
and Y output
f
g
3 dB bandwidth
11
15
MHz
Automatic cut-off control (pin 19; measurement periods see beam info on pin 19)
V
19
permissible voltage (also during
scanning period)
internally controlled voltage on pin 19
V
P
1.4
3.0
V
V
REF0
during leakage
measurement time LM
2.4
2.7
V
I
o19(max)
I
i19(max)
R
19
I
19
V
19
maximum output current
maximum input current
input resistance for measurement input
additional input current
threshold of warm up detector (active in
line MG)
difference between input voltage for
cut-off and V
REF0
; adjustable via I
2
C-bus
(subaddress for reference: R: 07H,
G: 08H and B: 09H)
maximum V
MEAS
nominal V
MEAS
minimum V
MEAS
350
250
1
4.3
0.5
4.5
250
350
4.7
μ
A
μ
A
M
mA
V
only during warm up
V
MEAS
I
2
C-bus data 3FH
I
2
C-bus data 20H
I
2
C-bus data 00H
1.45
0.9
0.4
1.6
1.0
0.45
1.75
1.1
0.5
V
V
V
Storage of cut-off control voltage / output clamping voltage (pins 25, 23 and 21)
I
25, 23, 21
input currents of storage inputs outside
of the measurement time
maximum charge / discharge current
during measurement time
gain from storage pins 25, 23 and 21 to
outputs
0.1
μ
A
I
25, 23, 21(max)
0.2
0.3
0.4
mA
G
stg
1.7
Storage of leakage information (pin 17)
I
17
maximum charge / discharge current at
time LM
discharge current
300
400
μ
A
I
17
peak limiting during time
MK active
outside time LM
V
17
is below
4
mA
I
17
V
17
leakage current
voltage to reset IC to switch on
conditions
2.3
2.5
0.1
3.0
μ
A
V
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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