AN733

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