AN733

AN7337N PANASONIC | Alldatasheet

Document overview

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Technical content

The AN7337N is a graphic equalizer IC for high perfor- mance Hi-Fi developed for deck. It incorporates output buffer circuit and 7 resonance buffer circuits, can set res- onance frequency by external capacitor. n Features

• Low noise : Vno = 4µVrms typ.
• Low distortion : THD = 0.002% typ. (at VO = 1Vrms)
• High output power : VO (max.)= 9.5Vrms typ. (at. THD = 0.1%)
• Wide operating supply voltage range : VCC (opr.) = ±4 ~ ±18V AN7337N 7-Element Graphic Equalizer IC for Hi-Fi 25.0–0.3 1.22–0.25 3 ~15˚ 6.35–0.3 0.5–0.25 2.54 3.85–0.25 3.0–0.25 0.6–0.25 7.62–0.25 3.25–0.3 0.25 + 0.1 – 0.05 20-Lead DIP Package (DIP020-P-0300A) Unit : mm 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 –V CC GND +V CC Output Buffer Resonance Section7 Resonance Section6 Resonance Section5 Resonance Section4 Resonance Section3 Resonance Section2 Resonance Section1 n Block Diagram

AN7337N ICs for Audio Common Use n Absolute M axim um R atings (Ta= 25˚C ) V C C IC C PD Topr Tstg Supply V oltage Supply C urrent Pow er D issipation O perating A m bient Tem perature Storage Tem perature V m A m W Param eter Sym bol R ating U nit –18 –50 1,000 –20 ~ + 75 –55 ~ +150 Param eter Sym bol R ange O perating Supply V oltage R ange V C C –4V ~ –18V n R ecom m ended O perating R ange (Ta = 25˚C ) Param eter Sym bol C ondition m in. typ. m ax. U nit Total C ircuit C urrent V oltage G ain FLA T V oltage G ain B O O ST V oltage G ain C U T Total H arm onic D istortion M ax. O utput V oltage O utput N oise V oltage O utput N oise V oltage IC C G V (FLA T) G V (B oost) G V (C U T) TH D V O (m ax.) V no V no (m ax.) V in= 0m V f= 1kH z, V in= –10dB m FLA T V O = 0dB , V in= –10dB m FLA T V O = 0dB , V in= –10dB m f= 1kH z, V O = 1V rm s f= 1kH z, TH D = 0.1% Input Short, D IN /A U D IO Input Short, A LL B oost – 0.3 –12 0.002 9.5 –10.4 0.03 100 m A dB dB dB V rm s µV rm s µV rm s – 0.6 10.4 –14 n Electrical C haracteristics (V C C = –15V , Ta = 25˚C ) V O = 1V rm s Ta = 25˚C TH D – VC C 0.1 0.05 0.03 0.02 0.01 0.005 0.003 0.002 0.001 Supply V oltage V C C (V ) Total H arm onic D istortion TH D (% ) 150 5 10 302520 V C C –V no Input Short D IN /A U D IO Total Flat Vno – VC C Supply V oltage V C C (V ) O utput N oise V oltage V no (µV ) 120 4 8 242016 TH D – VO 0.3 0.1 0.03 0.01 0.003 O utput V oltage V O (dB V ) Total H arm onic D istortion TH D (% ) –20 0 4020 V C C = –15V f = 1kH z Ta = 25˚C C U T B oost FLA T n Characteristics Curve

ICs for Audio Common Use AN7337N TH D – f 10 –1 10 –2 10 –3 10 –4 10 –5 Frequency f (H z) Total H arm onic D istortion TH D (% ) 1k100 10k V C C =15V V in =1V rm s Ta =25˚C VO – f – 20 – 40 Frequency f (H z) O utput V oltage V O (dB V ) 10 1k100 10k 100k FLA T C U T 20 19 18 17 16 15 14 13 12 11 1 2 3 4 5 6 7 8 9 10 A N 7337N SG +– +– V O +V C C –V C C 22µF 22µF 3.3µF 1500pF 3.3kΩ 560Ω 10kΩ 47kΩ 0.12µF 0.068µF 0.022µF 0.0068µF 0.0027µF 0.0012µF 470pF V R : 50kΩ 33µF 3.3kΩ 3.3µF B oost Flat C ut n Application Circuit

AN7337N ICs for Audio Common Use Equivalent C ircuitPin N am ePin N o. Pin V oltage (V ) D escription 1, 3, 5, 7, 9, 11, Input C enter electric potential (G N D ) R esonance circuit input pin 2, 4, 6, 8, 10, 12, N egative Feedback C enter electric potential (G N D ) N on Inverting Input C enter electric potential (G N D )15 O utput buffer circuit non-inverting input pin Inverting Input16 O utput buffer circuit inverting input pin O utput17 O utput buffer circuit putput pin Positive Pow er Supply +1518 Positive supply pin G N D 019 G N D pin N egative Feedback –1520 N egative supply pin – V C C + V C C – V C C + V C C IN 1516 +V C C –V C C 33kΩ 33µF IN –V C C +V C C O U T – R esonance circuit negative feed- back pin C enter electric potential (G N D ) C enter electric potential (G N D ) n Pin D escriptions C enter electric potential