NJM2705. Surround Audio Processor for Mobile Applications

Transcription

1 Surround Audio Processor for Mobile Applications GENEA DESCIPTION The is the surround audio processor for mobile applications. It regenerates the 3D surround sound with extremely narrow space two speakers (2SP mode), headphone surround with normal headphone (HP mode) and reverberation sound with only one speaker (SP mode). It includes mode control switches for surround function and standby function and realizes low consumption power design by standby function. In addition to SSOP, an ultra small and thin package FFP (FlipChip Fine Package) is applied. It is suitable for cellular phone, PDA and portable game. PACKAGE OUTINE PC V FEATUES Operating Voltage Operating Current ow Output Noise.8 to V.7mA typ. at Active mode µa max. at Standby mode µvrms typ (2SP/HP/SP mode, V : max.) Variable Surround Effect by external resistor (Adjustable for speaker and headphone independently.) Standby Function Internal Mode Control Switch Bipolar Technology Package Outline FFP, SSOP BOCK DIAGAM IN IN 3D Filter 3D Enhancer SP Surround OUT OUT 2SP mode HP mode Bypass mode Surround mode SP mode

2 PIN CONFIGUATION FFP (Top View) IN 9. MON 2. IN. PS 3. OUT.. OUT. SW. NFSP 3.. NFHP. 7. NFSP. GND 8. NFHP. VEF 2 3 SSOP (Top View) NFHP NFSP. 3. OUT. SW. OUT.. IN 3. PS. IN. MON 7. VEF. NFHP 8. GND. NFSP 2

3 ABSOUTE IMUM ATING (Ta=2 C) PAAMETE SYMBO ATINGS UNIT Supply Voltage V + 7 V Power Dissipation P D (FFP) (SSOP) 3 mw Operating Temperature ange T opr 2 to +7 C Storage Temperature ange T stg to + C OPEATING VOTAGE PAAMETE SYMBO TEST CONDITION TYP UNIT Operating Voltage V V EECTICA CHAACTEISTICS (=3V, Ta=2 C unless otherwise specified) PAAMETE Operating Current eference Voltage SYMBO I CC Vref No Signal TEST CONDITION INPUT OUT SP HP TYP UNIT MODE PUT V V Active 7 µa Standby.. No Signal...3 V AC CHAACTEISTICS (V + =3V, Ta=2 C, =2dBV(mVrms), f=khz, =kω, unless otherwise specified) PAAMETE Maximum Input Voltage Output Noise SYMBO V IM V IM2 V IM3 V IM V IM V IM V IM7 V IM8 V IM9 V IM V NO V NO2 V NO3 V NO f=khz THD=% f=hz THD=% f=hz THD=% f=hz THD=% f=hz THD=% V + =.8V,f=kHz THD=% V + =.8V,f=Hz THD=% V + =.8V,f=Hz THD=% V + =.8V,f=Hz THD=% V + =.8V,f=Hz THD=% g=ω AWeighted g=ω AWeighted g=ω AWeighted g=ω AWeighted TEST CONDITION INPUT OUT PUT MODE SP V HP V Bypass 2SP HP SP SP Bypass 2SP HP SP SP TYP UNIT. (3) 2. () 2. () 2. () 23. (7) Bypass SP HP SP 2. (79). (). (). (). (9) 8. (38) 22. (7) 22. (7) 22. (7) 2. (9) (2.) () () () (.) 9 (2) 9 (2) 9 (2) dbv (mvrms) dbv (µvrms) 3

4 AC CHAACTEISTICS (V + =3V, Ta=2 C, =2dBV(mVrms), f=khz, =kω, unless otherwise specified) PAAMETE Total Harmonic Distortion BYPASS Gain Surround Gain SYMBO THD THD2 THD3 THD G VBYP G VSU G VSU2 G VSU3 G VSU G VSU f=khz f=khz f=khz f=khz f=khz f=hz f=hz f=hz f=hz TEST CONDITION INPUT OUT PUT MODE SP V HP V TYP UNIT Bypass.2. 2SP.. HP.. SP.. Bypass... db 2SP... 2SP. 2.. HP... HP. 2.. f=hz SP. 8.. % db G VSU f=hz SP 2... G VSU7 f=hz SP. 3.. G VSU8 f=hz SP.. 8. CONTO CHAACTEISTICS (V + =3V, Ta=2 C unless otherwise specified) PAAMETE SYMBO TEST CONDITION TYP UNIT MODE Select Control Voltage V MODE =High evel.2 V + V =ow evel..3 SWITCH FUNCTION SUOUND FUNCTION SW MODE SW NOTES Bypass, OPEN, OPEN Input Through 2SP mode, OPEN H Surround mode for narrow space two speakers HP mode H, OPEN Surround mode for Headphone SP mode H H Surround mode for monaural speaker (Surround signal from OUT) STANDBY SW MODE NOTES Standby, open IC is nonactive Active H IC is active

5 TEA DESCIPTION PIN No. SYMBO FUNCTION EQUIVAENT CICUIT Voltage FFP SSOP 2 IN IN ch Input ch Input p.v p k VEF OUT OUT MON ch Output ch Output Filter terminal 2k k p.v NFSP NFHP NFSP NFHP Filter terminal Filter terminal Filter terminal Filter terminal 2k p.v 2k 3 PS Filter terminal.v p p

6 TEA DESCIPTION PIN No. SYMBO FUNCTION EQUIVAENT CICUIT Voltage FFP SSOP SW Mode control switch Mode control switch 7 2k V 27k 3p 3 Standby switch V 7 7k 22k 3p 9 Power Supply 8 GND GND V 7 VEF eference voltage.v 3k 3k p p

7 APPICATION CICUIT (FFP) ) 2SP mode, HP mode SW SW 3 GND 8 7.7k k µ k µ.27µ PS 9 MON.7µ.33µ µ NFHP NFSP NFHP.7k HP V kb SP V kb µ VEF IN IN OUT 2 3 OUT NFSP.7µ.33µ ch IN.µ ch OUT ch IN.µ ch OUT 2) SP mode, HP mode SW SW 3 GND.7k k µ k µ.27µ PS 9 MON.7µ.33µ µ NFHP NFSP NFHP 8 7.7k HP V kb SP V kb µ VEF IN IN OUT 2 3 OUT NFSP.7µ ch IN.µ ch OUT ch IN.µ ch OUT Surround signal is outputted from OUT terminal at SP mode. 7

8 APPICATION CICUIT (SSOP) ) 2SP mode, HP mode SP V kb HP V kb.7k.7k.7µ HFHP NFSP.33µ.33µ 2 NFSP NFHP.7µ ch OUT 3 OUT MON ch OUT OUT PS 3.27µ ch IN.µ IN k ch IN.µ IN SW µ k SW µ 7 VEF µ 8 GND 9 µ 2) SP mode, HP mode SP V kb HP V kb.7k.7k.7µ HFHP NFSP.33µ 2 NFSP NFHP.7µ ch OUT 3 OUT MON ch OUT OUT PS 3 µ.27µ ch IN.µ IN k ch IN.µ IN SW µ k SW µ 7 VEF µ µ 8 GND 9 Surround signal is outputted from OUT terminal at SP mode. 8

9 TYPICA CHAACTEISTICS Operating Current vs. Operating Voltage (STANDBY) Ta=2 o C Operating Current vs. Temperature (STANDBY) 2 =3V.8 Operating Current [µa]...2 Operating Current [µa] Operating Current vs. Operating Voltage (ACTIVE) Operating Current vs. Temperature (ACTIVE) Ta=2 o C =3V 8 8 Operating Current [µa] Bypass,2SP,HP,SP mode Operating Current [µa] Bypass,2SP,HP,SP mode eference Voltage vs. Operating Voltage Ta=2 o C.3 eference Voltage vs. Temperature =3V 3.2 eference Voltage [V] eference Voltage [V]

10 TYPICA CHAACTEISTICS Maximum Input Voltage vs. Operating Voltage (BYPASS) f=khz, =kω, THD=%, Ta=2 o C Maximum Input Voltage vs. Operating Voltage (2SP) Ta= 2 o C, f=hz SP_V=, =kω, THD=% Vin=ch Vout=ch Vin=ch Vout=ch 2 2 Vin=ch Vout=ch Vin=ch Vout=ch Maximum Input Voltage vs. Operating Voltage (HP) Ta=2 o C, f=hz, HP_V=, =kω,thd=% Maximum Input Voltage vs. Temperature (SP) Ta= 2 o C, f=hz, SP_V=, =kω, THD=% 2 2 Vin=ch Vout=ch Vin=ch Vout=ch 2 2 Vin=ch Vout=ch Vin=ch Vout=ch Maximum Input Voltage vs. Temperature (BYPASS) =3V, f=khz, =kω THD=% Maximum Input Voltage vs. Temperature (2SP) =3V, f=hz, =kω SP_V=, THD=% Vin=ch Vout=ch 2 3 Vin=ch Vout=ch Vin=ch Vout=ch Vin=ch Vout=ch

11 TYPICA CHAACTEISTICS Maximum Input Voltage vs. Temperrature (HP) =3V, f=hz, =kω HP_V=, THD=% Vin=ch Vout=ch Maximum Input Voltage vs. Temperature (SP) =3V, f=hz, =kω SP_V=, THD=% Vin=ch Vout=ch 3 Vin=ch Vout=ch Vin=ch Vout=ch Output Noise Voltage vs. Temperature =3V, g=ω, Vout=ch SP_V=, HP_V=, FITE=AWeighted 9 Output Noise Voltage vs. Temperature =3V, g=ω, Vout=ch SP_V=, HP_V=, FITE=AWeighted 9 9 Output Noise Voltage [dbv] 2SP mode HP mode SP mode Bypass Output Noise Voltage [dbv] 2SP mode HP mode Bypass Total Harmonic Distortion vs. Input Voltage (BYPASS) =3V, Vin=ch, f=khz, Vout=ch =kω, BW=Hz8kHz Total Harmonic Distortion vs. Input Voltage (2SP) =3V, Vin=ch, f=hz, Vout=ch =kω, BW=Hz8kHz, SP_V= THD+N [%]. Ta=7 o C Ta=2 o C Ta=2 o C THD+N [%].. Ta=2 o C Ta=2 o C Ta=7 o C. 3 2 Input Voltage [dbv]. 3 2 Input Voltage [dbv]

12 TYPICA CHAACTEISTICS Total Harmonic Distortion vs. Input Voltage (HP) =3V, Vin=ch, f=hz, Vout=ch =kω, BW=Hz8kHz, HP_V= Total Harmonic Distortion vs. Input Voltage (SP) =3V, Vin=ch, f=hz, Vout=ch =kω, BW=Hz8kHz, SP_V= THD+N [%] THD+N [%] Input Voltage [dbv] Ta=2 o C Ta=2 o C Ta=7 o C. Ta=2 o C Ta=7 o C. 3 2 Input Voltage [dbv] Ta=2 o C Frequency esponce (BYPASS) =3V, Vin=2dBV ch, Vout=ch =kω, g=2ω 2 Frequency esponce (2SP) =3V, Vin=2dBV ch, Vout=ch =kω, g=2ω, SP_V=. Ta=7 o C Ta=2 o C Ta=2,2,7 o C Ta=2 o C. 2 Frequency esponce (2SP) =3V, Vin=2dBV ch, Vout=ch =kω, g=2ω, SP_V= 9 Phase vs. Frequency (2SP) =3V, Vin=2dBV, ch+ch =kω, g=2ω, SP_V= Ta=7 o C Ta=2 o C Phase [db] 9 Ta=2,2,7 o C Vout=ch Ta=2 o C 8 Ta=2,2,7 o C Vout=ch 27

13 TYPICA CHAACTEISTICS 2 Frequency esponce (HP) =3V, Vin=2dBV ch, Vout=ch =kω, g=2ω, HP_V= 2 Frequency esponce (HP) =3V, Vin=2dBV ch, Vout=ch =kω, g=2ω, HP_V= Ta=7 o C Ta=2 o C Ta=2 o C Ta=7 o C Ta=2 o C Ta=2 o C Frequency esponce (SP) =3V, Vin=2dBV, Vout=ch =kω, g=2ω, SP_V= Frequency esponce (SP) =3V, Vin=2dBV, Vout=ch =kω,g=2ω, V= Vin=ch Ta=7 o C Ta=2 o C Ta=2 o C Vin=chTa=7 o C Ta=2 o C Ta=2 o C Vin=ch Ta=7 o C Ta=2 o C Ta=2 o C Vin=ch Ta=2 o C Ta=2 o C Ta=7 o C [CAUTION] The specifications on this databook are only given for information, without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages of the product and not intended for the guarantee or permission of any right including the industrial rights. 3