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NTE739 Datasheet(PDF) 2 Page - NTE Electronics

Part No. NTE739
Description  Integrated Circuit Dual Doubly Balanced Chroma Demodulator with RGB Matrix and Chroma Driver Stages
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Manufacturer  NTE [NTE Electronics]
Direct Link  http://www.nteinc.com
Logo NTE - NTE Electronics

NTE739 Datasheet(HTML) 2 Page - NTE Electronics

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Electrical Characteristics (Cont’d):
(VCC = 24V, Vref = 1.0V(p–p), RL = 3.3kΩ, TA = +25°C unless
otherwise specified)
Parameter
Test Conditions
Min
Typ
Max
Unit
Dynamic Characteristics
Detected Output Voltage
+ (B–Y)
Note 1
4.0
5.0
V(pk)
– (B–Y)
4.0
5.0
V(pk)
Chroma Input Voltage
B–Y Output = 5VP–P, Note 1
0.36
0.7
VP–P
Luminance Input Resistance
100
k
Luminance Gain from Pin3 to Outputs
At DC
0.95
At 5MHz
0.5
Blanking Input Resistance
1Vdc
1.1
k
0Vdc
7.5
k
Detected Output Voltage
G–Y Output
Adjust B–Y Output to 5VP–P,
0.75
1.0
1.25
VP–P
R–Y Output
Luminance Voltage = 23V
3.5
3.8
4.2
VP–P
Relative Output Phase
B–Y to R–Y Output
B–Y Output = 5VP–P,
101
106
111
deg
B–Y to G–Y Output
Luminance Voltage = 23V
248
256
264
deg
Demodulator Unbalance Voltage
No Chroma Input Voltage and Nominal
Reference Signal Input Voltage
100
500
VP–P
Residual Carrier and Harmonics Output
Voltage
With Input Signal Voltage,
Nominal Reference Signal Voltage,
and B–Y Output = 5VP–P
1.0
VP–P
Reference Input Resistance
2.0
k
Reference Input Capacitance
6.0
pF
Chroma Input Resistance
2.0
k
Chroma Input Capacitance
2.0
pF
Note 1. With Normal Reference Input Signal Voltage, Adjust Chroma Input Signal Voltage to
1.2V(p–p).
Note 2. With Normal Reference Input Signal Voltage, Adjust Chroma Input Signal Voltage Until the
Blue Output Voltage = 5V(p–p). The Chroma Input Voltage at this point should be equal to
or less than 0.7V(p–p).
VCC
Pin Connection Diagram
R – Y Chroma Input
B – Y Ref Input
1
2
3
4
G – Y Output
R – Y Output
Luminance Input
B – Y Output
5
DC Ref Input
6
Blanking Input
7
GND
14
13
12
11
R – Y Ref Input
N.C.
10 Chroma DC Input
9
8 B – Y Chroma Input


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