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參數(shù)資料
| 型號： | TDA4680WP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費家電 |
| 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 |
| 文件頁數(shù)： | 16/28頁 |
| 文件大?。?/td> | 243K |
| 代理商： | TDA4680WP |
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1996 Oct 25
16
Philips Semiconductors
Product specification
Video processor with automatic cut-off
and white level control
TDA4680
Automatic cut-off and white level control (pins 19 and 18);
notes 9 to 11; see Fig.8
V
19
permissible voltage (also during
scanning period)
output current
input current
additional input current
warming up amplitude (under I
2
C-bus
control; sub-address 0AH)
voltage threshold for picture tube
cathode warming up
internally controlled voltage
V
P
1.4 V
I
19
150
0.5
V
pdl
0.7
140
μ
A
μ
A
mA
V
only during warming up
switch-on delay 1
V
24,22,20
V
19(th)
switch-on delay 1
5.0
V
V
ref
during leakage
measurement period
3.0
V
D
ATA BYTE
07H
FOR RED REFERENCE LEVEL
,
DATA BYTE
08H
FOR GREEN REFERENCE LEVEL AND DATA BYTE
09H
FOR BLUE
REFERENCE LEVEL
V
19
difference between V
MEAS
(cut-off or
white level measurement voltage) and
V
ref
3FH (maximum V
MEAS
)
20H (nominal V
MEAS
)
00H (minimum V
MEAS
)
white level measurement
to V
ref
; I
18
≤
800
μ
A
white level measurement
1.5
1.0
100
250
0.5
800
V
V
V
μ
A
mV
I
18
R
18
V
19
input current
internal resistance
white level register (measured value
within tolerance range)
Storage of cut-off control voltage/output clamping voltage (pins 25, 23 and 21)
I
21/23/25
charge and discharge currents
during cut-off
measurement lines
outside measurement
time
0.3
mA
input currents of storage inputs
0.1
μ
A
Storage of leakage information (pin 17)
I
17
charge and discharge currents
during leakage
measurement period
outside time LM
0.4
mA
leakage current
voltage for reset to switch-on below
0.1
3.0
μ
A
V
V
17
Hue control (under I
2
C-bus control; sub-address 03H; data byte 3FH for maximum voltage; data byte 20H for
nominal voltage and data byte 00H for minimum voltage);
note 12
V
26
output voltage
at 3FH
at 20H
at 00H
4.8
500
3.0
1.0
V
V
V
μ
A
I
int
current of the internal current source
at pin 26
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
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