Panasonic AN7337NS Datasheet

ICs for Audio Common Use

AN7337NS

7-element graphic equalizer IC for Hi-Fi audio equipment

■ 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 ex­ternal capacitor.

■ Features

• Low distortion (max.: 0.03%)

• Low noise voltage (input short circuit: max.: 30
µV[rms])

• High output voltage (typ. 9.5 V)

■ Applications

• Mini-component stereo, system component stereo

■ Block Diagram

CC

−V

192018

GND

CC

+V

17

16

15

14

12.6±0.3

20

110

(0.60)

13

1.27

Seating plane Seating plane

12

11

5.4±0.3

7.7±0.3

0.40±0.25

0.65

SOP020-P-0300B

11

0.15

0.1±0.1 1.5±0.2

Unit : mm

0.3

0° to 10°

213

4

5

6

7

8

9

10

1

AN7337NS ICs for Audio Common Use

■ Pin Descriptions

Pin No. Description

1 In 1
2NF 1
3 In 2
4NF 2
5 In 3
6NF 3
7 In 4
8NF 4
9 In 5

10 NF 5

■ Absolute Maximum Ratings

Parameter Symbol Rating Unit

Supply voltage V
Supply current I

2

Power dissipation
Operating ambient temperature
Storage temperature

Note)*1 : All items are at Ta = 25°C, except for the operating ambient temperature and storage temperature.

2 : Referring to "■ Technical Information" for power dissipation at Ta = 75°C, use the circuit under the conditions

*

of the VCC × ICC is not exceeding the PDmax.

*

1

*

1

*

CC

CC

P

D

T

opr

T

stg

Pin No. Description

11 In 6
12 NF 6
13 In 7
14 NF 7
15 Non-inverting input
16 Inverting input
17 Output
18 + V

CC

19 GND
20 − V

CC

± 18 V
± 50 mA

230 mW

−20 to +75 °C

−55 to +125 °C

■ Recommended Operating Range

Parameter Symbol Range Unit

Supply voltage V

CC

± 4.0 to ± 18.0 V

■ Electrical Characteristics at VCC = ±15 V, Ta = 25°C

Parameter Symbol Conditions Min Typ Max Unit

Total circuit current I
Voltage gain FLAT G

V(FLAT)f

Voltage gain BOOST G

(BOOST)

Voltage gain CUT G

V(CUT)

Total harmonic distortion THD f = 1 kHz, VO = 1 V[rms] − 0.002 0.03 %
Max. output voltage V
Output noise voltage V
Output noise voltage V

2

V

CC

V

OMf

NO

NOM

= 0 mV 8 12 16 mA

IN

= 1 kHz, V

FLAT VO = 0 dB, V

FLAT VO = 0 dB, V

= −10 dBm − 0.6 − 0.3 0 dB

IN

= −10 dBm 10.4 12.0 14.0 dB

IN

= −10 dBm −14.0 −12.0 −10.4 dB

IN

= 1 kHz, THD = 0.1% 8.0 9.5 − V[rms]
Input short circuit DIN AUDIO −430
Input short circuit DIN AUDIO − 31 100

All Boost

µV[rms]
µV[rms]