UTC TA7640AP LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R110-007,A
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
FM IF AMP
AM IF AMP
IF AMP
FREQUENCY
DETECTOR
MIXER
LOCAL
OSC
REGULATOR
IF AMP
AM AMP
DRIVER
AM/FM
SWITC
H
DC AMP
1
2
3
4
5
6
8
9
10
11
12
13
14
15
16
7
INPUT
0.01
F
0.047
F
4.7k
0.015
F
100
F
Vcc=5V
22
F
68k
10
F
0.047
F
AM
FM
UTC TA7640AP LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R110-007,A
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,V
CC
=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
dB
Detector Output
VOD
1
VIN=66dB
57
85
114
mVrms
Signal Noise Ratio
S/N
1
VIN=80dB
65
dB
Total Harmonic
Distortion
THD
1
VIN=80dB
0.05
%
Am Rejection
AMR
1
VIN=80dB
38
dB
UTC TA7640AP LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R110-007,A
PARAMETER
SYMBOL
CHART
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Leverl Meter Driving
Voltage
VM
1
VIN=100dB
1.6
1.75
1.9
V
Led Driving Sensitivity
VL
1
IL=1mA
46
52
dB
AM
Gain
GV
1
VIN=26dB
20
30
60
mVrms
Detector Output Voltage
VOD
1
VIN=60dB
65
95
125
mVrms
Signal To Noise Ratio
S/N
1
VIN=60dB
47
dB
Total Harmonic
Distortion
THD
1
VIN=60dB
1
%
Signal Meter Output
VM
1
VIN=100dB
1.6
1.75
1.9
V
Level Meter Driving
Voltage
VL
1
IL=1mA
32
dB
Oscillation Stop Voltage
Vstop
1
RDUMP=
1.5
V
Pin 5 Output Impedance
R09
f=1KHZ
3
K
TEST CIRCUIT
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
4.7k
68k
33k
Vin
Vin
FM IN
AM IN
75
220
50
0.033
F
50
0.047
F
0.047
F
47
F
22
F
390
LED
100
VL(ON)
FM\AM
OUT
mA
Vcc=5V
10
0.015
F
0.01
F
0.022
F
0.022
F
FM CLOSE
FM OPEN
UTC TA7640AP
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