NTE NTE1654 Datasheet

FM/AM IF System (Low Supply Voltage Use)

Features:

D FM IF Amplifier
D FM Quadrature Detector
D AM Mixer
D AM Local Oscillator
D AM IF Amplifier

NTE1654

Integrated Circuit

D AM Detector
D Signal Meter Driver
D Low Supply Voltage Use: V
D Very Few External Parts

= 3V to 8V

CC

Absolute Maximum Ratings

Supply Voltage, V
Power Dissipation, P

CC

D

: (TA = +25°C unless otherwise specified)

750mW. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Derated Above 25°C 6mW/°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Temperature Range, T
Storage Temperature Range, T

stg

opr

–25° to +75°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

–55° to +150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Electrical Characteristics: (TA = +25°C unless otherwise specified)

Parameter Symbol Test Conditions Min Typ Max Unit

FM

Supply Current I

Input Limiting Voltage V
Recovered Output Voltage V
Signal to Noise Ratio S/N(1) VIN = 80dBµV – 70 – dB
Total Harmonic Distortion THD(1) VIN = 80dBµV – 0.3 – %
AM Rejection Ratio AMR AM: 1kHz, 30%, FM: ∆f = ±22.5kHz

Meter Driver Voltage V

AM

CC

IN(lim)
OD(1)

2(FM)

VIN = 0 at FM – 17 31 mA
VIN = 0 at AM – 15 31 mA
–3dB Limiting – 34 40 dBµV
∆f = ±22.5kHz, VIN = 60dBµV 40 60 80 mV

– 50 – dB

= 80dBµV

V

IN

VIn = 80dBµV 0.8 1.0 1.2 V

8V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

rms

(DC)

Recovered Output Voltage V
Gain GAIN fIN = 455kHz, VIN = 20dBµV 10 24 52 mV
Meter Driver Voltage V
Total Harmonic Distortion THD(AM) VIN = 60dBµV – 1.0 – %
Signal to Noise Ratio S/N(AM) VIN = 60dB – 40 – dB
Local OSC. Stop Voltage V

OD(AM)VIN

2(AM)

stop

= 60dBµV 90 130 180 mV

VIN = 60dBµV – 1.0 – V

– 1.5 – V

DC

DC

rms
rms

Pin Connection Diagram

GND

AM Output12

3

FM Output 2 (AFC)

Quad

AGC

4
5
6

7

IF 2 Input

8

16 9

16

AM OSC

15

Mixer Output

14

VCC 1VCC 2
AM Mixer Input

13

IF 1 Input

12

AM/FM Switch

11

IF 1 Output

10

Bypass

9

.245

(6.22)

Min

.260 (6.6) Max

18

.785 (19.9) Max

.300 (7.62)

.200 (5.08)

Max

.100 (2.54)

.700 (17.7)