FEATURES
complete linear system
current mode class H output stage
current drive power amp
low distortion / low noise
low amplifier current 190
A typical
STANDARD PACKAGING
Hybrid Typical Dimensions
0.225in x 0.130in x 0.110in
(5.72mm x 3.31mm x 2.79mm)
All resistors in ohms, all capacitors
in farads unless otherwise stated.
DESCRIPTION
The GS3013 is a linear hybrid containing three amplifier
stages.
This product incorporates a current mode class H power
amplifier.
By adapting the bias of the output stage to the requirements
of the signal being processed, significant current savings
can be realised compared to traditional class A amplifiers.
The adaptive action does not compromise the characteristics
of a current drive output stage.
In addition to the output stage, two additional stages of
preamplification are provided to allow filtering and gain
adjustment to be easily accomplished.
GS3013 DATA SHEET
FUNCTIONAL BLOCK DIAGRAM
V
REG
GS3013
GND
IN
B
OUT
- A
C1
220n
10
V
B2
170
7
B
IN
24k
12k
4
6
12
11 13
5
-
GC590
A
OUT
A
IN
MGND
9
3
C2
82n
C4
22
2
1
14
8
CONTROL V
B
125
C3
82n
12k
V
REG
B
+
-
+
-
C
OUT
R
E
R
E1
V
B1
9
10
2
1
5
6
4
GND2
11
C4
3
8
B
RIN
16
15
14
13
12
7
V
B
Revision Date: May 1998
Linear Class H
Current Manager Hybrid
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996
Web Site: www.gennum.com E-mail: hipinfo@gennum.com
Document No. 520 - 87 - 02
NOT RECOMMENDED
FOR NEW DESIGNS
520 - 87 - 02
2
PAD CONNECTION
CAUTION
CLASS 1 ESD SENSITIVITY
ABSOLUTE MAXIMUM RATINGS
PARAMETER
VALUE / UNITS
Supply Voltage
5 VDC
Power Dissipation
25 mW
Operating Temperature Range
-10
C to 40
C
Storage Temperature Range
-20
C to 70
C
Conditions: Frequency = 1 kHz, Temperature 25
C, Voltage Supply = 1.3 VDC
ELECTRICAL CHARACTERISTICS
Notes:
1.
Headroom = 20 Log (V
RE DC
/ V
REACRMS
) [V
IN
=
-70 dBV]
OUT
V
B1
V
B2
GND
MGND
V
REG
IN
R
E
GND2
R
E1
A
IN
A
OUT
B
RIN
B
IN
B
OUT
11
1 0
C4
9
8
7
1 2
1 3
2
3
1
14
4
15
5
6
16
PARAMETER
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
OVERALL
Amplifier Current
I
AMP
80
190
300
A
Minimum Operating Voltage
V
B
-
-
1.1
V
Overall Gain
A
V
51
54
57
dB
Distortion
THD
V
IN
= -40 dBV
-
0.2
1
%
R
TRIM
= R
VC
=
10 k
Input Referred Noise
IRN
A Weighted Filter
-
-
2.5
V
RMS
VOLTAGE REGULATOR
Regulator Voltage
V
REG
I
LOAD
= 30
A
870
920
970
mVDC
Output Noise
A Weighted
-
2.9
-
V
RMS
STAGE A AND STAGE B
Input Bias Current
I
BIAS
-25
0
25
nA
DC Voltage Gain Stage A
A
OL -A
-
52
-
dB
Stage B
A
OL -B
-
42
-
dB
Current Source Capabilities
I
SOURCE
15
30
-
A
Output Voltage Swing - Low
V
SINK
260
315
-
mV
STAGE C AND CONTROL CIRCUIT
Maximum Current Sinking
I
SINK
R
E
grounded, V
P4
= 1.3 V
3
6
-
mA
Output Impedance
R
OUT
-
24
-
k
Minimum Emitter Voltage
V
RE-MIN
2
5
9
mV
Maximum Emitter Voltage
V
RE-MAX
62
66
74
mV
Minimum Transducer Current
I
T-MIN
R
E,
R
E1
shorted
26
71
126
A
Maximum Transducer Current
I
T-MAX
R
E,
R
E1
shorted
750
930
1100
A
Maximum/Minimum Transducer
I
RANGE
16
20
28
dB
Current Ratio
Dynamic Headroom
Headroom
Note 1
14
17
22
dB
Time Constant
T
C
-
100
-
mS
All parameters and switches remain as shown in the Test Circuit unless otherwise stated in CONDITIONS column.
520 - 87 - 02
NOT RECOMMENDED
FOR NEW DESIGNS
3
All resistors in ohms, all capacitors
in farads unless otherwise stated.
All resistors in ohms, all capacitors
in farads unless otherwise stated.
1.3V
1k
2.6V
CA
01
100k
RVC
V
REG
GS3013
GND
IN
B
OUT
- A
C1
220n
10
170
7
B
IN
24k
12k
4
6
12
11 13
5
-
GC590
A
OUT
A
IN
MGND
9
3
C2
82n
C4
22
2
1
14
8
CONTROL V
B
125
C3
82n
12k
V
REG
B
+
-
+
-
C
OUT
R
E
R
E1
V
I
100k
RTRIM
3k9
9
10
2
1
5
4
GND2
11
C4
3
V
B2
6
8
B
RIN
16
15
14
13
12
7
V
B
Fig. 1 Production Test Circuit
100k
RVC
100k
RTRIM
V
REG
GS3013
GND
IN
B
OUT
- A
C1
220n
10
V
B1
170
7
B
IN
24k
12k
4
6
12
11 13
5
-
GC590
B
RIN
A
OUT
A
IN
MGND
9
3
C2
82n
C4
22
2
1
14
8
CONTROL V
B
125
C3
82n
12k
V
REG
B
+
-
+
-
C
OUT
R
E
R
E1
1.3V
8
10
16
15
14
2
13
12
7
1
5
V
B2
6
4
GND2
11
C4
3
9
CA
01
V
B
Fig. 2 Typical Hearing Instrument Application
NOT RECOMMENDED
FOR NEW DESIGNS
520 - 87 - 02
4
VOLUME
CONTROL
CA
0
1
BATTERY
+
-
REC
+
MIC
+
12 13 14 15 16 1
9 8 7 6 5 4
11
10
2
3
All resistors in ohms, all capacitors
in farads unless otherwise stated.
All resistors in ohms, all capacitors
in farads unless otherwise stated.
Fig. 4 Characterization Circuit
Fig. 3 Typical Assembly Diagram
V
B
=1.3V
R
L
1k3
V
L
=2xV
B
=2.6V
C
A
01
RVC
10k
V
REG
GS3013
GND
IN
B
OUT
- A
C1
220n
10
170
7
B
IN
24k
12k
4
6
12
11 13
5
-
GC590
A
OUT
A
IN
MGND
9
3
C2
82n
C4
22
2
1
14
8
CONTROL V
B
125
C3
82n
12k
V
REG
B
+
-
+
-
C
OUT
R
E
R
E1
RGT
100k
3k9
9
10
2
1
5
4
GND2
11
C4
3
V
B2
6
8
B
RIN
16
15
14
13
12
7
V
I
V
B
520 - 87 - 02
NOT RECOMMENDED
FOR NEW DESIGNS
5
60
50
40
30
20
10
0
20
0
-20
-40
-60
-80
-120 -100 -80 -60 -40 -20
INPUT LEVEL (dBV)
Fig. 5 Input vs Output Transfer Function for the
Different Values of the R
VC
Resistor
R
VC
=100k
R
VC
=10k
R
VC
=100
R
VC
=1k
20 100 1k 10k 20k
FREQUENCY (Hz)
Fig. 6 Frequency Response for
Different R
VC
Values
V
IN
=80dBV
(PINK NOISE
GENERATOR)
R
VC
=10k
R
VC
=100k
R
VC
=1k
1.0
0.4
0.2
0.1
0.06
-80 -70 -60 -50 -40 -30 -20
VRE LEVEL (dBV)
Fig. 7 Transducer Current Characteristics
V
L
=V
B
R
L
=0
1.0
0.5
0
-0.5
-1
1.0 1.2 1.4 1.6 1.8 2.0
SUPPLY VOLTAGE (V)
Fig. 8 System Gain vs Supply
10
1
0.1
-60 -50 -40 -30 -20
INPUT LEVEL (dBV)
Fig. 9 THD & Noise vs Input Level
= 1kHz
OUTPUT LEVEL (dBV)
GAIN (dB)
RELATIVE GAIN (dB)
TRANSDUCER CURRENT (mA)
THD (%)
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