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NTE7150 Datasheet(PDF) 6 Page - NTE Electronics

Part No. NTE7150
Description  Integrated Circuit Video, Chroma, and Sync. Signal Processing Circuit for PAL/NTSC/SECAM System Color Televisions
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Maker  NTE [NTE Electronics]
Homepage  http://www.nteinc.com
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NTE7150 Datasheet(HTML) 6 Page - NTE Electronics

   
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AC Characteristics (Cont’d): VCC = 9V, Logic VCC = 3.3V, TA = +25°C unless otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
TEXT/Matrix Section (Cont’d)
Blanking Output Voltage
Measure output voltage from Pin18 during
blanking period.
0.3
0.5
0.8
V
Vertical Blanking Period
50Hz
Measure vertical blanking period width.
23
H
60Hz
18
H
Horizontal Blanking Threshold
Voltage
Measure lowest voltage at Pin9 which causes
horizontal blanking.
0.5
0.7
1.0
V
Horizontal Blanking Delay Time
Measure blanking–on delay time.
0.0
0.1
0.3
µs
Measure blanking–off delay time.
0.1
0.3
0.5
µs
External Blanking Threshold Current
Measure minimum input current to Pin64 which
causes blanking.
300
330
400
µA
Mute Output Voltage
1.7
2.0
2.3
V
Mute Switch Threshold Voltage
4.7
5.0
5.3
V
External TEXT Input Dynamic
Range
Measure input dynamic range on Pin22, Pin23,
and Pin24.
1.0
1.5
VP–P
External TEXT Contrast Control
Maximum Gain
Input signal 3 (Vim = 0.1VP–P) to TP24. Measure
15
16
18
dB
Center Gain
output amplitude at Pin18 when data = 7FH,
40H, and 00H as V . Gain = 20log (V /0.1).
12.0
13.5
15.0
dB
Minimum Gain
40H, and 00H as V18. Gain = 20log (V18/0.1).
–7
–4
–2
dB
External TEXT Rising Time
Load capacitance is 10pF. Adjust contrast data
10
25
50
ns
External TEXT Falling Time
so that RGB output amplitude is 1VP–P.
10
25
50
ns
External TEXT Output Delay Time
10
25
50
ns
External TEXT Switching Delay
Time
10
25
50
ns
TV/TEXT Switching Voltage
0.7
1.0
1.3
V
Crosstalk
TV
→ TEXT
–45
–55
dB
TEXT
→ TV
–45
–55
dB
External TEXT Bandwidth
12
15
20
MHz
All White Mode Output Voltage
R Output
Select all–white mode by bus. Measure R, G,
3.6
3.8
4.0
VP–P
G Output
and B amplitudes during trace period.
3.5
3.7
3.9
VP–P
B Output
3.6
3.8
4.0
VP–P
Sync. Section
Horizontal Sync Separation Level
30
35
40
%
Sync Separation Input Sensitivity
10
18
25
µA
Horizontal Free Running Frequency
measure H.out frequency when no sync input
and no FBP input.
15.50 15.62
15.75
kHz
AFC1 Pull–In Range
High
Center frequency is fH = 15.625Hz
500
750
1000
Hz
Low
–500
–750
–1000
Hz
Horizontal Oscillation Frequency
Control Range
14.70 15.62
16.90
Hz
Horizontal Oscillation Frequency
Control Sensitivity
2.0
2.3
2.6
kHz/V
AFC1 Detection Current
250
350
450
µA


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