DUAL PRE-POWER AMP
S1A0134A01
1
INTRODUCTION
The S1A0134A01 is a monolithic integrated circuit designed for
use in low voltage and low power applications. It has various
functions including those of a dual audio pre-power amplifier,
DC volumecontrol and headphone drive circuits.
It is suitable for portable tape recorders or headphone cassette
recorders.
FEATURES
Built-in DC volume control circuit
Wide operation supply voltage: V
CC
= 1.8V -- 6V
Only a few components needed to build headphone cassette tape recorders
Built-in ripple filter
ORDERING INFORMATION
BLOCK DIAGRAM
Device
Package
Operating Temperature
S1A0134A01-D0B0
16
-
DIP
-
300A
-
20
C -- +75
C
16
-
DIP
-
300A
16
15
14
13
12
11
PRE
GND
PRE
INPUT1
NF1
PRE
OUT1
POWER
INPUT1
RIPPLE
FILTER
POWER
OUT1
POWER
GND
1
2
3
4
5
6
7
8
9
10
PRE
INPUT2
NF2
PRE
OUT2
POWER
INPUT2
POWER
OUT2
V
REF
CONT
V
CC
POWER AMP2
POWER AMP1
PRE AMP2
PRE AMP1
+
-
+
-
VOLUME
CONTROL
V
REF
RIPPLE
FILTER
S1A0134A01
DUAL PRE-POWER AMP
2
ABSOLUTE MAXIMUM RATINGS (Ta = 25
C)
ELECTRICAL CHARACTERISTICS
(V
CC
= 3V, Ta = 25
C, f = 1kHz, R
L1
= 10k
, unless otherwise specified)
PRE-AMPLIFIER SECTION
(V
CC
= 3V, Ta = 25
C, f =1kHz, R
L1
=10k
, unless otherwise specified)
Characteristic
Symbol
Value
Unit
Supply Voltage
V
CC
7
V
Power Dissipation
P
D
750
mW
Operating Temperature
T
OPR
-
20 -- +75
C
Storage Temperature
T
STG
-
40 -- +125
C
Characteristic
Symbol
Test Conditions
Min.
Typ.
Max.
Unit
Quiescent Circuit Current
I
CCQ1
V
I
= 0, V
OL
= MIN
-
9
13
mA
I
CCQ2
V
I
= 0, V
OL
= MAX
-
11
-
mA
Cross Talk
CT
R
G
= 2.2k
, V
O
=
-
10dBm
34
40
-
dB
Characteristic
Symbol
Test conditions
Min.
Typ.
Max.
Unit
Open Loop Voltage Gain
G
VO
V
I
= 0.2mV
55
62
-
dB
Closed Loop Voltage Gain
G
VC1
V
O
=
-
10dBm, NAB 1kHz
-
33
-
dB
Output Voltage
V
O
THD = 1%
600
720
-
mV
Total Harmonic Distortion
THD
1
V
O
=
-
10dBm
-
0.04
0.1
%
Ripple Rejection Ratio
RR
1
R
G
= 2.2k
V
R
=
-
20dBm, f
R
= 100Hz
-
46
-
dB
Equivalent Input
Noise Voltage
V
NI
R
G
= 2.2k
, BW = 30
-
20kHz
Gain for NAB 1kHz
-
1.2
2.0
V
DUAL PRE-POWER AMP
S1A0134A01
3
POWER AMPLIFIER SECTION
(V
CC
= 3V, Ta = 25
C, f = 1kHz, R
L2
= 32
, unless otherwise specified)
Characteristic
Symbol
Test conditions
Min.
Typ.
Max.
Unit
Output Power
P
O1
THD2 = 10%
20
27
-
mW
P
O2
THD2 = 10%, RL = 16
-
39
-
mW
Total Harmonic Distortion
THD
2
P
O
= 10mW, Volume: 100%
-
0.5
1.2
%
THD
3
P
O
= 10mW, Volume: 50%
-
0.3
-
%
Closed Loop Voltage Gain
G
VC2
V
O
=
-
0dBm, Volume: 100%
28
30
32
dB
G
VC3
V
O
=
-
10dBm, Volume: 50%
-
15
-
dB
Channel Balance
CB
V
O
=
-
10dBm
-
1.5
0
1.5
dB
Volume Rejection Ratio
VOL
REJ
V
O
=
-
10dBm
Volume: 100% to 0%
66
72
-
dB
Output Noise Voltage
V
NO
BW = 30
-
20kHz,
R
G
= 600
-
250
320
V
Ripple Rejection Ratio
RR
2
R
G
= 600
, f
r
= 100Hz
V
r
=
-
20dBm
-
46
-
dB
PDF 
ZIP
