NTE1495
Integrated Circuit
AM RF Mixer, IF Amplifier
Description:
The NTE1495 is a monolithic integrated circuit in a 15−Lead Staggered SIP type package. This device
is suitable for use as an AM tuner in automotive radio receivers, specifically where compact mounting
is required and contains an RF amplifier, mixer, IF amplifier, and two types of AGC circuits.
Features:
D High Sensitivity
D Excellent Two−Signal Selectivity Characteristics which Permits Receiving any Weak Signal
Without Interference from the Next Strongest Signal
D Wide AGC Range Provided by Two AGC Circuits (Delay Type) Employed in the IF and RF
Stages, in Addition to the Ability to Withstand Large Input and to the Yeild of High S/N Ratio
Absolute Maximum Ratings: (TA = +25°C unless otherwise specified)
Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V
Input Voltage, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7VP−P
Power Dissipation (TA = +75°C), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 310mW
Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20° to + 75°C
Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40° to +125°C
Recommended Operating Conditions: (TA = +25°C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Operating Supply Voltage
Operating Ambient Temperature
VCC
9
13
16
V
TA
−20
−
+75
°C
Electrical Characteristics: (TA = +25°C, VCC = 13V, f = 1MHz, fmod = 400Hz, MOD = 30%,
RL = 10kΩ unless otherwise specified)
Parameter
Circuit Current
Symbol
ICC
Test Conditions
At No Signal
Min Typ Max Unit
18
26
10
34
mA
Maximum Sensitivity
MS
Input level (υi) at which detector
output υo gets 20mVrms
−
17 dBµV
Signal−to−Noise Ratio
Detector Output
S/N
υi = 24dBµV
υi = 74dBµV
15
40
−
20
60
−
dB
90 mVrms
3.0
υO
Total Tarmonic Distortion
THD υi = 126dBµV
0.4
%