UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R107-015,A
3V AM / FM 1 CHIP TUNER IC
DESCRIPTION
The UTC TA8127 is the AM / FM 1 chip tuner IC, which is
designed for Portable Radios and 3V Headphone Radios.
FEATURES
*Built-in FM F/E, AM / FM IF and FM MPX
*AM Detector Coil and IF Coupling Condenser are not
needed.
*Operating Supply Voltage Range
Vcc=1.8~7.0V (Ta=25
C)
SSOP-24
SDIP-24
BLOCK DIAGRAM
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R107-015,A
ABSOLUTE MAXIMUM RATINGS
(TA=25
C)
PARAMETER SYMBOL
VALUE
UNIT
Supply Voltage
Vcc
8
V
LED Current
I
LED
10 mA
LED Voltage
V
LED
8 V
Power Dissipation
SSOP
SDIP
P
D (note)
400
1200
mW
Operating Temperature
T
OPR
-25 to +75
C
Storage Temperature
T
STG
-55 to +150
C
Note: Derated above 25
C in the proportion of 9.6mW/C for SDIP and of 3.2mW/C for SSOP.
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, Ta=25C, Vcc=3V,F/E: f=83MHz, fm=1kHz
FM IF : f=10.7MHz,
f=22.5kHz, fm=1kHz
AM : f=1MHz, MOD=30%, fm=1kHz
MPX : fm=1kHz )
PARAMETER
SYMBOL
*
TEST CONDITIONS
MIN TYP MAX
UNIT
Icc(FM)
1
Vin=0, FM Mode
13.2 20.0
mA
Supply Current
Icc(AM)
1
Vin=0, AM Mode
8.4 13.5
mA
Input Limiting Voltage
Vin(lim.)
1
-3dB Limiting
10.0
dB
V EMF
F / E
Local OSC Voltage
V
OSC
2
f
OSC
=72.3MHz
105
mVrms
FM IF Input Limiting Voltage
Vin(lim.) IF 1
-3dB Limiting
40
46
53 dB
V EMF
Recovered Output Voltage
V
OD
1
Vin=80dB
V EMF
55
80 110
mVrms
Signal to Noise Ratio
S/N
1
Vin=80dB
V EMF
70
dB
Total Harmonic Distortion
THD
1
Vin=80dB
V EMF
0.4
%
AM Rejection Ratio
AMR
1
Vin=80dB
V EMF
32
dB
Lamp ON Sensitivity
V
L
1
I
L
=1mA 45
51
56
dB
V EMF
AM Gain
Gv
1
Vin=26dB
V EMF
40
70 110
mVrms
Recovered Output Voltage
V
OD
1
Vin=60dB
V EMF
55
80 110
mVrms
Signal to Noise Ratio
S/N
1
Vin=60dB
V EMF
42
dB
Total Harmonic Distortion
THD
1
Vin=60dB
V EMF
1.0
%
Lamp on Sensitivity
V
L
1
I
L
=1mA 20
25
30
dB
V EMF
Pin 19 Output Resistance
R19
1
FM Mode
AM Mode
0.75
12.5
k
*TEST CIRCUIT
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R107-015,A
PARAMETER
SYMBOL
*
TEST CONDITIONS
MIN TYP MAX
UNIT
Input Resistance
RIN
-
24
k
Output resistance
ROUT
-
5
k
Max. Composite Signal Input
Voltage
Vin(max.)
STEREO
1
L+R=90%, P=10%,
fm=1kHz, THD=3%
350 mVrms
fm=100Hz
42
fm=1kHz 35
42
Separation Sep
1 L+R=135mVrm,
P=15mVrms
fm=10kHz
42
dB
Monaural THD
(MONAURAL)
Vin=150mVrms
0.2
%
Total Harmonic
Distortion
Stereo THD
(STEREO)
1
L+R=135mVrm,
P=15mVrms
0.2
%
Voltage Gain
GV(MPX)
1
Vin=150 mVrms
-5
-3
-1
dB
Channel Balance
C.B.
1
Vin=150 mVrms
-2
0
2
dB
ON V
L
(ON) Pilot
Input
8
16
mVrms
Stereo Lamp
Sensitivity
OFF V
L
(OFF)
1
Pilot Input
2
6
mVrms
Stereo Lamp Hysteresis
V
H
1
To LED turn off from LED
turn on
2 mVrms
Capture Range
C.R.
1
P=15mVrms
3
%
MPX
Signal to Noise Ratio
S/N
1
Vin=150mVrms
70
dB
*TEST CIRCUIT
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R107-015,A
TEST CIRCUIT 1
UTC TA8127
NOTE: POLYESTER FILM CONDENSER
Using other types of condensers, there are some
cases that the MPX does not do normal stereo action
at high temperature or low temperature.
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R107-015,A
TEST CIRCUIT 2
UTC TA8127
COIL DATA
TEST
FREQ.
L Co Qo
TURNS
COIL NO.
(Hz) (
H) (pF) 1-2 2-3 1-3 1-4 4-6
WIRE
(mm
)
REFERENCE
L1 FM RF
100M
100
2.5
0.5UEW
S
53T-037-202
L2 FM OSC
100M
100
2.75
0.5UEW
S
0258-244
L3 AM OSC
796K 288
115
13
73
0.08UEW
S
4147-1356-038
T1 FM MIX
10.7M
75 100
13
2
0.1UEW
S
2153-414-041
T2 AM MIX
455k
180 120
180
15
0.08UEW
S
2150-2162-165
T3 FM DET 10.7M
47 165
16
0.09UEW
S
2153-4095-122
S
: SUMIDA ELECTRIC CO., LTD
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
6
QW-R107-015,A
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
7
QW-R107-015,A
UTC TA8127
LINEAR INTEGRATED CIRCUIT
UTC
UNISONIC TECHNOLOGIES CO., LTD.
8
QW-R107-015,A
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