ICs for Audio Common Use
AN7337NS
7-element graphic equalizer IC for Hi-Fi audio equipment
s
Overview
The AN7337NS is a graphic equalizer IC for high
performance Hi-Fi audio equipment developed for deck.
It incorporates an output buffer circuit and 7 resonance
buffer circuits, and can set resonance frequency by ex-
ternal capacitor.
Unit : mm
12.6±0.3
20
11
5.4±0.3
7.7±0.3
•
Low distortion (max.: 0.03%)
•
Low noise voltage (input short circuit: max.: 30
µV[rms])
•
High output voltage (typ. 9.5 V)
(0.60)
1.27
Seating plane
0.40±0.25
0.65
0.1±0.1
1.5±0.2
s
Features
1
10
0.15
0.3
0° to 10°
Seating plane
s
Applications
•
Mini-component stereo, system component stereo
SOP020-P-0300B
s
Block Diagram
−V
CC
+V
CC
18
17
GND
19
20
16
15
14
13
12
9
10
1
2
3
4
5
6
7
8
11
1
AN7337NS
s
Pin Descriptions
Pin No.
1
2
3
4
5
6
7
8
9
10
In 1
NF 1
In 2
NF 2
In 3
NF 3
In 4
NF 4
In 5
NF 5
Description
Pin No.
11
12
13
14
15
16
17
18
19
20
ICs for Audio Common Use
Description
In 6
NF 6
In 7
NF 7
Non-inverting input
Inverting input
Output
+
V
CC
GND
−
V
CC
s
Absolute Maximum Ratings
Parameter
Supply voltage
Supply current
Power dissipation
*2
Operating ambient temperature
*1
Storage temperature
*1
Symbol
V
CC
I
CC
P
D
T
opr
T
stg
Rating
±
18
±
50
230
−20
to
+75
−55
to
+125
Unit
V
mA
mW
°C
°C
Note) *1 : All items are at T
a
=
25°C, except for the operating ambient temperature and storage temperature.
*2 : Referring to "s Technical Information" for power dissipation at T
a
=
75°C, use the circuit under the conditions
of the V
CC
×
I
CC
is not exceeding the P
D
max.
s
Recommended Operating Range
Parameter
Supply voltage
Symbol
V
CC
Range
±
4.0 to
±
18.0
Unit
V
s
Electrical Characteristics at V
CC
= ±15
V, T
a
=
25°C
Parameter
Total circuit current
Voltage gain FLAT
Voltage gain BOOST
Voltage gain CUT
Total harmonic distortion
Max. output voltage
Output noise voltage
Output noise voltage
Symbol
I
CC
G
V
(BOOST)
Conditions
V
IN
=
0 mV
FLAT V
O
=
0 dB, V
IN
= −10
dBm
Min
8
−
0.6
10.4
Typ
12
−
0.3
12.0
Max
16
0
14.0
Unit
mA
dB
dB
dB
%
V[rms]
µV[rms]
G
V(FLAT)
f
=
1 kHz, V
IN
= −10
dBm
G
V(CUT)
FLAT V
O
=
0 dB, V
IN
= −10
dBm
−14.0 −12.0 −10.4
THD
V
OM
V
NO
V
NOM
f
=
1 kHz, V
O
=
1 V[rms]
f
=
1 kHz, THD
=
0.1%
Input short circuit DIN AUDIO
Input short circuit DIN AUDIO
All Boost
−
8.0
−
−
0.002
9.5
4
31
0.03
−
30
100 µV[rms]
2
ICs for Audio Common Use
s
Electrical Characteristics at V
CC
= ±15
V, T
a
=
25°C (continued)
•
Design reference data
Note) The following characteristics are the reference values for design and not guaranteed values.
AN7337NS
Parameter
Resonance frequency
Resonance frequency
Resonance frequency
Resonance frequency
Resonance frequency
Resonance frequency
Resonance frequency
Symbol
f
O1
f
O2
f
O3
f
O4
f
O5
f
O6
f
O7
Conditions
V
IN
= −10
dBm, V
O
=
G
V PEAK
V
IN
= −10
dBm, V
O
=
G
V PEAK
V
IN
= −10
dBm, V
O
=
G
V PEAK
V
IN
= −10
dBm, V
O
=
G
V PEAK
V
IN
= −10
dBm, V
O
=
G
V PEAK
V
IN
= −10
dBm, V
O
=
G
V PEAK
V
IN
= −10
dBm, V
O
=
G
V PEAK
Min
47.3
93.3
285
0.851
1.98
5.23
12.4
Typ
57
113
347
1.04
2.41
6.37
15.1
Max
73.6
145
444
1.32
3.08
8.14
19.3
Unit
Hz
Hz
Hz
kHz
kHz
kHz
kHz
s
Technical Information
•
P
D
T
a
curves of SOP020-P-0300B
P
D
T
a
900
800
700
When mounted on printed board
550
× 820 ×
t1.2 mm
3
Power dissipation P
D
(mW)
600
Independent IC
500
400
300
200
100
0
0
25
50
75
100
125
Ambient temperature T
a
(°C)
3
