NTE NTE749 Integrated circuit tv video if amp Datasheet

NTE749
Integrated Circuit
TV Video IF Amp
Features:
D High Power Gain: 46dB (Typ) f = 58MHz
D Wide AGC Range: 60dB (Min)
D Low Reverse Transfer Admittance: yr ≤ –1.0µ (Typ)
D Nearly Constant Input and Output Admittance over AGC Range
D Control Signal Available for Delayed Forward AGC of Tuner
D Control Signal Available for Delayed of FET Tuner
D Either Positive or Negative Going Video Signals
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Output Voltage, V7, V8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V
Input Voltage, V1, V2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Vp–p
AGC Input Voltage, V6, V10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6V
Gate Input Voltage, V5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10, –20V
Power Dissipation, PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625mW
Derated Above TA = 25°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.0mW/°C
Min. Load Resistance, RL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4kΩ
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –20° to +75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –55° to +150°C
Electrical Characteristics: (VCC = 12V, TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min
Typ
Max
Unit
Supply Current
ICC
–
27
31
mA
Output Current
IOUT
–
5.7
–
mA
Power Dissipation
PD
–
324
372
mW
Power Gain
Gp
f = 58MHz
42
46
–
dB
Noise Figure
NF
f = 58MHz,Rg = 50Ω
–
8.5
–
dB
0dB AGC
350
–
–
mVrms
–30dB AGC
200
–
–
Maximum Output Voltage
VOM
Electrical Characteristics (Cont’d): (VCC = 12V, TA = +25°C unless otherwise specified)
Parameter
Symbol
AGC AGC Range
RF–AGC
Min
Typ
Max
Unit
AGC
60
–
–
dB
V12(Max)
–
8.2
–
V
V12(Min)
–
0.2
–
RF–AGC At Operating Range
–
10
–
dB
f = 58MHz
–
0.8
–
mΩ
–
3.4
–
–
155
–
–
850
–
–
220
–
mΩ
–
–135
–
deg
∆GP
Power Gain Variations
Input Admittance
gi
Input Acceptance
bi
Output Admittance
go
Output Acceptance
bo
Forward Transfer Admittance
yf
Test Conditions
f = 58MHz
f = 58MHz 0dB AGC
µΩ
Phase Angle of Forward Transfer
Admittance
<yf
–30dB AGC
–
–95
–
deg
Reverse Transfer Admittance
yr
f = 58MHz
–
<1.0
–
µΩ
Pin Connection Diagram
IF Input 1
14 IF AGC Filter
Bypass 2
GND 3
13 RF AGC Delay Voltage
12 RF AGC Output
11 VCC
GND 4
Keyer Pulse 5
10 Video & Ref DC Inputs
Video & Ref DC Inputs 6
9 AGC Storage Capacitor
8 IF Output
IF Output 7
14
8
1
7
.785 (19.95)
Max
.300
(7.62)
.200 (5.08)
Max
.100 (2.45)
.600 (15.24)
.099 (2.5) Min
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