NTE NTE805

NTE805
Integrated Circuit
IF Gain Block for FM Receiver
Description:
The NTE805 provides function of an IF gain block and is designed for use in communications and FM
receivers. The device consists of a three−stage limiting amplifier operating from a regulated power
supply, and 330Ω input and output terminations with 7.0pF of shunt capacitance required for 10.7MHz
ceramic filters. The device also offers a 7.7 voltage regulated supply for external use from pin 6.
Features:
D Gain at 10.7MHz: 35dB Typ.
D Operating Voltage Range: 10V to 20V
D Excellent Temperature Stability
D Power Supply Rejection Ratio: 40dB Typ.
Absolute Maximum Ratings:
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20V
Supply Current, ICC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30mA
Input Voltage (Pin 1 and Pin 3), VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3.0V
Internal Power Consumption (PD at 70°C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400mW
Output Current (Pin 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA
Operating Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −25° to +70°C
Storage Temperature Range, TS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65° to +150°C
Note 1. Derate at the rate of 8.3mW°C at temperatures above +25°C
Operating Conditions: (TA = +25°C, VCC = 12V unless otherwise specified)
Parameter
Symbol Test Pin
Test Conditions
8
Min
Typ
Max
Unit
14
18
25
mA
−
−
400
mW
Supply Current
ICC
Total Device Dissipation
Pd
Terminal Voltage (Note 2)
V1
1
−
1.2
−
V
V2
1
−
1.2
−
V
V3
1
−
2.4
−
V
V5
1
−
2.0
−
V
V6
1
7.2
7.7
8.3
V
V7
1
−
2.0
−
V
I6 = 5mA
Note 2. All DC Voltage readings are with respect to network ground.
Dynamic Electrical Characteristics: (TA = 25°C, VCC = 12V, f = 10.7MHz, unless otherwise specified)
Min
Typ
Max
Unit
5
−
110
−
mVrms
5
−
1.5
−
mVrms
Rin
1−2
270
330
390
Ω
Parallel Input Capacitance
Cin
1−2
5
7
10
pF
Output Impedance
Parallel Output Resistance
Rout
5
270
330
390
Ω
Cout
5
5
7
10
pF
Output Voltage Gain
AVout
5
Vin = 100mVrms, f = 1MHz
−
35
−
dB
Power Supply Rejection
VSR
5
Vin = 250mVrms f = 100Hz
−
−40
−
dB
Parameter
Output Voltage Swing
Symbol
Test
Pin
VOM
Output Noise Voltage
Input Impedance
Parallel Input Resistance
Parallel Output Capacitance
Test Conditions
Pin Connection Diagram
IF Input
1
8
VCC
IF Input Decouple
2
7
Low IF Output
VCC Decoupling 3
6
Regulated Output
5
High IF Output
GND
4
8
5
.256 (6.52) Max
1
4
.393 (10.0)
Max
.300
(7.62)
.150
(3.81)
.100 (2.54)
.070 (1.77) Min
.300 (7.62)