NTE875 데이터 시트보기 (PDF) - NTE Electronics
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NTE875 Datasheet PDF : 4 Pages
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AC Electrical Characteristics (Cont’d): (TA = +25°C, Detector set–up as above, f = 45.75MHz,
VAGC = 6.7V, VCOMP = 4V, and allswitches in position 0
(open) unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Zero Carrier Level
Detected Output Level
V16 SW1, 2, 4 Position 1, νDET = 0
6.6 7.4 8.4 V
∆V16 SW1, 2, 4 Position 1, νDET = 60mVrms, 2.0 3.0 4.3 V
Measure Change in V16 from Zero
Carrier Test
Overload Output Voltage
AFC Output Voltage (OFF)
AFC Minimum Output Voltage
V16 SW1, 2, 4 Position 1, νDET = 600mVrms –
2
3V
V27 SW1, 2, 4 Position 1, νDET = 0
2.8 3.0 3.2 V
V27 SW1, 4 Position 1, νDET = 60mVrms,
46.75MHz
– 0.5 1.0 V
AFC Maximum Output Voltage V27 SW1, 4 Position 1, νDET = 60mVrms,
44.75MHz
9 10 – V
PLL Pull–In Range
∆f SW1, 4 POsition 1, νDET = 60mVrms, 2
3
– MHz
Vary Frequency and Measure the
Difference between Lock Points
Note 1. The IF amplifier gain is specified with the IF output connected to a 50Ω measurement system
which results in a 25Ω loaded impedance. The gain in an actual application will typically be
26dB higher.
Pin Connection Diagram
IF Output 1
VCC 2
IF Gain Adjust 3
IF Gain Adjust 4
IF Supply 5
IF Decouple 6
IF Input 7
IF Input 8
IF Decouple 9
IF GND 10
RF AGC Output 11
RF AGC Takeover Adjust 12
AGC Filter 13
AGC Gate Generator Time Constant 14
28 Detector Input
27 AFC Output
26 AFC Tank
25 Limiter Tank
24 Limiter Tank
23 AFC Tank
22 Detector Phase Adjust
21 Substrate GND
20 VCO Tank
19 VCO Tank
18 PLL Filter
17 Input to AGC Comparator
16 Video Output
15 Supply Decouple
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