NTE NTE734

NTE734
Integrated Circuit
TV FM IF Gain Block
Description:
The NTE734 F−M gain block linear monolithic integrated circuit is designed for use in communicatios
and high fidelity f−m receivers. This device consists of a three−stage limiting amplifier section, a regulated powersupply, an a−m detector and 330 ohm input and output terminations with 7pF shunting
capacitance required foer 10.7MHz ceramic filters. Gain can be adjusted without effect on input and
output conditions by addition of a fixed resistor between pins 3 and 7.
Absolute Maximum Ratings:
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22mA
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Input Voltage (Pin 1 & 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3.0V
Internal Power Consumption (Note 1), PO . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 750mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +85°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C
Note 1. Derate at the rate of 8.3mW/°C at temperature above +25°C
Static Electrical Characteristics: (TA = +25°C, VCC = +12V unless otherwise specified)
Parameter
Symbol
Test Conditions
Typ
Max
Unit
8
12
16
V
Supply Voltage
V8
Supply Current
ICC
14
18
22
mA
Input Impedance
Parallel Input Resistance
XRin
270
330
390
Ω
Parallel Input Capacitance
XCin
−
7
−
pF
Output Impedance
Parallel Output Resistance
XRout
270
330
390
Ω
XCout
5
7
10
pF
Total Device Dissipation
Pd
−
−
400
mW
Terminal Voltage (Note 2)
V1
−
1.4
−
V
V2
−
1.4
−
V
V3
−
2.8
−
V
V5
−
2.4
−
V
V6
−
1.8
−
V
Parallel Output Capacitance
Operating Range
Min
Note 2. All d−c voltage readings are with respect to network ground
Dynamic Electrical Characteristics: (TA = +25°C, VCC = +12V, f = 10.7MHz unless otherwise specified)
Parameter
Symbol
Input Limiting Threshold
VTH
Output Voltage Swing
VOM
Test Conditions
Min
Typ
Max
Unit
−
1200
−
µV
−
0.7
−
Vp−p
330Ω Load and Source
−
4
−
mVrms
−3dB, 330Ω Load and Source
Output Noise Voltage
Output Voltage Gain
AVout
Vin = 100mVrms, f = 1MHz
43
47
53
dB
Power Supply Rejection
VSR
Vin = 250mVrms, f = 100Hz (Note 3)
−
−37
−
dB
Detector Output
Voltage Change
∆V6
Vin = 15mVrms at 1MHz
with 50% 1kHz modulation
−
100
−
mVp−p
Note 3. Add 22dB attenuation at input.
Pin Connection Diagram
IF Input
1
8
IF Input Bypass
2
7
Low IF Output
Reg V (+) Output
3
6
Detector Output
GND
4
5
High IF Output
8
(+) VCC
5
.260 (6.6)
1
4
.390 (9.9)
Max
.300
(7.62)
.155
(3.93)
.145 (3.68)
.100 (2.54)
.300 (7.62)