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 external 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
0.15
1
10
0.3
0° to 10°
Seating plane
s Applications
• Mini-component stereo, system component stereo
SOP020-P-0300B
s Block Diagram
−VCC +VCC 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 + VCC GND − VCC
s Absolute Maximum Ratings
Parameter Supply voltage Supply current Power dissipation
*2 *1
Symbol VCC ICC PD Topr Tstg
Rating ± 18 ± 50 230 −20 to +75 −55 to +125
Unit V mA mW °C °C
Operating ambient temperature Storage temperature
*1
Note) *1 : All items are at Ta = 25°C, except for the operating ambient temperature and storage temperature. *2 : Referring to "s Technical Information" for power dissipation at Ta = 75°C, use the circuit under the conditions of the VCC × ICC is not exceeding the PDmax.
s Recommended Operating Range
Parameter Supply voltage Symbol VCC Range ± 4.0 to ± 18.0 Unit V
s Electrical Characteristics at VCC = ±15 V, Ta = 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 ICC GV
(BOOST)
Conditions VIN = 0 mV FLAT VO = 0 dB, VIN = −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]
GV(FLAT) f = 1 kHz, VIN = −10 dBm
GV(CUT) FLAT VO = 0 dB, VIN = −10 dBm −14.0 −12.0 −10.4 THD VOM VNO VNOM f = 1 kHz, VO = 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 VCC = ±15 V, Ta = 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 fO1 fO2 fO3 fO4 fO5 fO6 fO7
Conditions VIN = −10 dBm, VO = GV PEAK VIN = −10 dBm, VO = GV PEAK VIN = −10 dBm, VO = GV PEAK VIN = −10 dBm, VO = GV PEAK VIN = −10 dBm, VO = GV PEAK VIN = −10 dBm, VO = GV PEAK VIN = −10 dBm, VO = GV 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
• PD Ta curves of SOP020-P-0300B PD T a
900 800 700 When mounted on printed board 550 × 820 × t1.2 mm3
Power dissipation PD (mW)
600 Independent IC 500 400 300 200 100 0 0 25 50 75 100 125
Ambient temperature Ta (°C)
3
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