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参数资料
| 型号： | NTE874 |
| 厂商： | NTE Electronics, Inc. |
| 英文描述： | Integrated Circuit TV Horiz/Vert Countdown System Circuit |
| 中文描述： | 集成电路电视Horiz /垂直倒计时系统电路 |
| 文件页数： | 4/7页 |
| 文件大小： | 43K |
| 代理商： | NTE874 |
Electrical Characteristics (Cont
’
d): (
T
A
= +25
°
C, V
CC
= 12V
DC
, V25 = 12V
DC
, Pin 2, 15, 22 to
GND;, 1
μ
F from Pin 4 to GND., 10K ohms from Pin 28 to GND., F
CLK
= 1MHz, (AC Coupled),
V
Sync
1.2V to 4V, V
IV
1.9V to 2.8V, V
FA
0.2V to 0.7V)
Parameter
Test Conditions
Blanking/Gating Section (Cont
’
d)
Horizontal Blanking Starts
(See Notes: 1, 2, 4)
Horizontal Blanking Width
(See Notes: 2, 4, 5)
Burst Gate Starts
(See Notes: 1, 2, 4)
Burst Gate Trailing Edge
(See Notes: 1, 2, 4)
AGC Gate Starts
(See Notes: 1, 2, 4)
AGC Gate Width 1
(See Notes: 2, 4, 5)
AGC Gate Width 2
(See Notes: 3, 4, 5)
Horizontal Drive Section
Horizontal Out, Low Voltage
Start
3.9 K
–
ohm (Pin 3 to 3V)
Low Voltage Horizontal Period
V
CC
= 3V, V23 = 1MHz
50pF (Pin 3 to GND),
3.9K
–
ohm (Pin 3 to 3V)
(Trigger Level 1.5V)
Low Voltage Horizontal Pulse
Width Symmetry
50pF (Pin 3 to GND),
3.9K
–
ohm (Pin 3 to 3V)
(Trigger Level 1.5V)
Find Pulse Width Divide
by Period
Pin 4 Quiescent Voltage
V6 = V8 = 6V, I5 = 20mA,
Pin 4 Open
Horizontal Drive Saturation
Voltage
Horizontal Drive Symmetry
V6 = V8 = 6V,
200 ohm (Pin 5 to GND),
600 ohm (Pin 5 to V
CC
),
V4 = 15, 734Hz, 2V
p
–
p
Horizontal Drive Ratio
Horizontal Pulse Width
Vertical Drive Section
Ramp Leakage
V
12
= 0V, V
11
= 1V, V
13
= 4V
Mirror Ramp Current
I12 = 150
μ
A, V11 = 4V,
V13 = 5V
Ramp Charging Current,
VD High
Stop Clock when Pin 11 Goes
High
PIN #
Min
Typ
Max
Units
16
16
16
16
9
9
9
–
.07
12.3
.44
–
.37
5.3
5.2
0.6
12.75
0.45
9.8
0.9
6.25
6.25
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
μ
s
11.75
0.15
8.6
–
4.25
4.25
V
CC
= 3V, 50pF (Pin 3 to GND),
3
2.8
–
–
V
P
–
P
3
55
64
75
μ
s
V
CC
= 3V, V23 = 1MHz,
3
.3
.48
.7
Ratio
8.4
8.7
9.1
V
V6 = V8 = 6V
5
–
174
225
mV
5
26
29.5
33
μ
s
3
3
–
64
–
–
μ
s
μ
s
31
33
11
11
–
–
.04
.04
–
3
–
3
μ
A
μ
A
V12 = 0V, V11 = 0V, V13 = 5V,
11
–
5.5
–
10
–
15.5
mA
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