UTC UTCTA7640AP Datasheet

UTC TA7640AP LINEAR INTEGRATED CIRCUIT

AM/FM IF PROCESSOR

DESCRIPTION

The UTC TA7640AP Is A Monolithic Integrated Circuit
Designed For The Radios Cassette Tape Recorder.

FEATURES

*Low Operating Current
*Low External Component
*Internal AM/FM Switch
*Wide Operating Voltage : Vcc=3.8V

DIP-16

BLOCK DIAGRAM

INPUT

1 2 3 4 5 6 8

AM FM

0.01

MIXER

Vcc=5V

F

µ

100

910111213141516

DETECTOR

DC AMP

4.7kΩ

DRIVER

7

0.015 µF

AM/FM
SWITC

H

µ

F

LOCAL

OSC

µF

0.047

0.047 µF

FM IF AMPAM IF AMP IF AMP

REGULATOR

10 µF

FREQUENCY

IF AMP

AM AMP

68kΩ

22 µF

UTC UNISONIC TECHNOLOGIES CO., LTD.

1

QW-R110-007,A

UTC TA7640AP LINEAR INTEGRATED CIRCUIT

ABSOLUTE MAXIMUM RATINGS(Ta=25°C)

PARAMETER SYMBOL VALUE UNIT

Voltage VCC 8 V
Led Driving Current ILAMP 10 mA
Power Dissipation PD 750 mW
Operating Temperature TOPR -25 ~-+75 °C
Storage Temperature TSTG -55~-+150 °C

NOTE :Ta>25°C,6mw/°C

DC ELECTRICAL CHARACTERISTICS(VCC=5V)

PARAMETER SYMBOL TYP UNIT

AM FM
Pin 1 AM Mixer Input V1 1.5 0 V
Pin 2 AM Mixer Bypass V2 1.5 0 V
Pin 3 AM Local OSC V3 2.3 2.3 V
Pin 4 Voltage Regulator V4 2.3 2.3 V
Pin 5 AM IF Out V5 1 0.9 V
Pin 6 Level Meter Out V6 1 0.9 V
Pin 7 Led Driver Output V7 V
Pin 8 GND V8 0 0 V
Pin 9 Dectector V9 1.4 1.5 V
Pin 10 Vcc V10 5 5 V
Pin 11 FM Decter Out V11 5 5 V
Pin 12 AM IF Bypass V12 1.5 1.5 V
Pin 13 AM IF Input V13 1.5 1.5 V
Pin 14 AM IFBypass V14 1.5 1.5 V
Pin 15 FM IF Input V15 1.5 1.5 V
Pin 16 AM Mixer Output V16 5 5 V

AC ELECTRICAL CHARACTERISTICS(Ta=25°C,VCC=5V,FM;f=10.7MHz, ∆f=22.5KHz, FM=400Hz AM;

f=1MHz, Mod=30%,FM=400Hz)

PARAMETER SYMBOL CHART TEST CONDITIONS MIN TYP MAX UNIT

Supply Current ICC(1) 1 FM VIN=0 10 15 mA

ICC(2) AM VIN=0 7 10
FM
Input Limiting Voltage VIN(lim) 1 -3dB 40 46 dBµ
Detector Output VOD 1 VIN=66dBµ 57 85 114 mVrms
Signal Noise Ratio S/N 1 VIN=80dBµ 65 dB
Total Harmonic
Distortion
Am Rejection AMR 1 VIN=80dBµ 38 dBµ

UTC UNISONIC TECHNOLOGIES CO., LTD.

THD 1 VIN=80dBµ 0.05 %

2

QW-R110-007,A