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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
Vcc=5V
4.7k 100 F
INPUT
0.01 F
0.047 F
0.015 F
16
15
14
13
12
11
10
9
AM IF AMP
FM IF AMP
IF AMP
FREQUENCY DETECTOR
AM/FM SWITC H
DC AMP
IF AMP
MIXER
LOCAL OSC
REGULATOR
AM AMP
DRIVER
1
2
3
4
5
68k
6
7
8
0.047 F
AM
FM
10 F
22 F
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R110-007,A
UTC TA7640AP LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS(Ta=25C)
PARAMETER
Voltage Led Driving Current Power Dissipation Operating Temperature Storage Temperature NOTE :Ta>25C,6mw/C
SYMBOL
VCC ILAMP PD TOPR TSTG
VALUE
8 10 750 -25 ~-+75 -55~-+150
UNIT
V mA mW C C
DC ELECTRICAL CHARACTERISTICS(VCC=5V)
PARAMETER
Pin 1 AM Mixer Input Pin 2 AM Mixer Bypass Pin 3 AM Local OSC Pin 4 Voltage Regulator Pin 5 AM IF Out Pin 6 Level Meter Out Pin 7 Led Driver Output Pin 8 GND Pin 9 Dectector Pin 10 Vcc Pin 11 FM Decter Out Pin 12 AM IF Bypass Pin 13 AM IF Input Pin 14 AM IFBypass Pin 15 FM IF Input Pin 16 AM Mixer Output
SYMBOL
AM V1 V2 V3 V4 V5 V6 V7 V8 V9 V10 V11 V12 V13 V14 V15 V16 0 1.4 5 5 1.5 1.5 1.5 1.5 5 1.5 1.5 2.3 2.3 1 1
TYP
FM 0 0 2.3 2.3 0.9 0.9 0 1.5 5 5 1.5 1.5 1.5 1.5 5
UNIT
V V V V V V V V V V V V V V V V
AC ELECTRICAL CHARACTERISTICS(Ta=25C,VCC=5V,FM;f=10.7MHz, f=22.5KHz, FM=400Hz AM;
f=1MHz, Mod=30%,FM=400Hz)
PARAMETER
Supply Current FM Input Limiting Voltage Detector Output Signal Noise Ratio Total Harmonic Distortion Am Rejection
SYMBOL
ICC(1) ICC(2) VIN(lim) VOD S/N THD AMR
CHART
1
TEST CONDITIONS
FM AM VIN=0 VIN=0 -3dB VIN=66dB VIN=80dB VIN=80dB VIN=80dB
MIN
TYP
10 7 40
MAX
15 10 46 114
UNIT
mA
1 1 1 1 1
dB mVrms dB % dB
57
85 65 0.05 38
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R110-007,A
UTC TA7640AP LINEAR INTEGRATED CIRCUIT
PARAMETER
Leverl Meter Driving Voltage Led Driving Sensitivity AM Gain Detector Output Voltage Signal To Noise Ratio Total Harmonic Distortion Signal Meter Output Level Meter Driving Voltage Oscillation Stop Voltage Pin 5 Output Impedance Vstop R09 1 RDUMP= f=1KHZ 1.5 3 V K VM VL 1 1 VIN=100dB IL=1mA 1.6 1.75 32 1.9 V dB GV VOD S/N THD 1 1 1 1 VIN=26dB VIN=60dB VIN=60dB VIN=60dB 20 65 30 95 47 1 60 125 mVrms mVrms dB % VL 1 IL=1mA 46 52 dB
SYMBOL
VM
CHART
1
TEST CONDITIONS
VIN=100dB
MIN
1.6
TYP
1.75
MAX
1.9
UNIT
V
TEST CIRCUIT
10 0.022 F 0.022 F
Vcc=5V mA
0.01 F 4.7k 0.015 F
FM IN
75 220
FM\AM OUT
16
15
14
13
12
11
10
9
Vin
UTC TA7640AP
1
AM IN
50 0.033 F
2
3
4
5
68k
6
LED 390
7
8
33k
47 F
0.047F
Vin FM CLOSE FM OPEN
0.047 F
50
100
VL(ON)
22 F
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R110-007,A

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