BH6415KN Multimedia ICs Audio I/O LSI for digital still camera BH6415KN BH6415KN are an audio I/O LSI for DSC. MIC AMP, ALC, LINE AMP, LPF, EVR, BTL monaural SP AMP to compose Analog signal I/O interface are incorporated into a single chip. Each mode (pass setting, ALC, LPF fc, EVR, BEEP etc.) can be controlled by 3-wire serial control. Integration into a single chip of small QFN28V package enables to reduce space and cost. zExternal dimensions (Unit : mm) zApplications Digital still camera zFeatures 1) 4-order + 1 trap LPF of REC and PB are incorporated into a single chip. →Cut-off frequency can be switched in 2 steps. (fc=8kHz, 16kHz) 2) 13step EVR. (0 to −44dB, MUTE) 3) With MUTE function SPAMP. (BTL) 4) 6step BEEP. (−12.5 to −27.5dB) 5) 3-wire serial control. 6) Unnecessary current consumption can be reduced by standby control in every block. 7) Low current consumption, Space reduction, Cost reduction. QFN28V zAbsolute maximum ratings（Ta=25°C） Symbol Limits Supply voltage Parameter VCC 4.5 Power dissipation Pd 580 ∗ Operating temperature range Unit V mW −20 to 70 Topr ˚C ˚C −50 to 125 Tstg Storage temperature range ∗Copper foil thickness, when glass epoxy board mounted 35µm. zRecommended operating conditions（Ta=25°C） Parameter Supply voltage Symbol Min. Typ. Max. Unit VCC 3.0 3.3 3.6 V 1/2 BH6415KN Multimedia ICs zElectrical characteristics（Unless otherwise noted, Ta=25°C, AVCC=3.0V, SPVCC=3.0V, DVCC=3.0V） Parameter Circuit current MICAMP voltage gain Input conversion noise voltage ALC level LPF frequency characteristic1 frequency characteristic2 frequency characteristic3 SPAMP voltage gain Maximum output voltage Symbol Min. − 47.5 − 1.0 −3.0 − − 10.5 250 IALL GV VNIN VOALC GV1 GV2 GV3 GV VOM Typ. 7.0 49.0 −110 1.52 −0.5 −10 −50 12.0 300 Max. 17.9 50.5 −90 2.2 − −7.0 −30 13.5 − Unit mA dB dBV Vpp dB dB dB dB mW Conditions No signal Vin=−65dBV, f=1kHz, ALC:off B.W.=DIN AUDIO Vin=−30dBV, f=1kHz Vin=−17.5dBV, fIN=3kHz/1kHz, fc=8kHz mode Vin=−17.5dBV, fIN=4kHz/1kHz, fc=8kHz mode Vin=−17.5dBV, fIN=8kHz/1kHz, fc=8kHz mode Vin=−17.5dBV, f=1kHz 8Ω load, THD=10%, BTL zApplication circuit LINEIN MICOUT MICIN 2.2µ 2.2M 0.1µ + 0.1µ REG 21 AGND TAU 20 19 18 17 16 15 0dB <MIC> LNF 2.2µ 1µ REG 0dB 22 <MICOUT> 0.1µ PB ALC 10µ +50dB 23 EVRIN 14 <LINEIN> 13 1µ BIASOUT LPFOUT REC 24 LPF ABIAS 12 TEST 11 MUTEB ABIAS BH6415KN <SP> 25 26 10 27 SIF EVR 28 0dB +6dB 9 8 SPBIAS 1µ 1 2 3 SPIN 0.1µ BEEPIN 4 5 6 1µ 1µ EVROUT 7 SEN SPBIAS SDATA RL=8Ω DVSS <LINEOUT> SCLK SPGND LINEOUT LOGIC 2/2