BH3863F/BH3863S Audio ICS Audio sound control IC BH3863F/BH3863S The BH3863F/BH3863S is a sound control IC for mini-component stereo. Resistive ladder system is used to make DC offset smaller when switching. This IC is a 2-wire serial controller. Small package of SOP24 and SDIP24 is adopted. !Applications Mini-component stereo, Micro-component stereo, TV and CD radio cassette tape player !Features 1) Volume, tone and bass boost can be controlled through serial control from a microcomputer. 2) Volume at both left and right sides can be controlled individually. 3) Resistive ladder type volume controller is used and BiCMOS process enables the low distortion rate and low noise. 4) It has a dynamic bus for the low frequency reinforcement. !Absolute maximum ratings (Ta=25°C) Parameter Symbol Limits Unit VCC V mW Pd −0.3 to +10.0 550 ∗ Operating temperature range Topr −40 to +85 C Storage temperature range Tstg −55 to +125 C Applied voltage Power dissipation + + ∗ For Ta=25 C or more, it is reduced at 5.5mW/ C. 50mm 50mm 1.6mm. !Recommendable operating voltage range (Ta=25°C) Parameter Power supply voltage Symbol Min. Typ. Max. Unit VCC 7.0 9.0 9.5 V 1/2 BH3863F/BH3863S Audio ICS !Electrical characteristic Unless specified particularly, Ta=25°C, VCC=9V, f=1kHz, Rg=600Ω, RL=10kΩ, BW=20 to 20kHz, Vin=1.0Vrms, Volume=0dB, Tone=0dB, Dynamic Bass=0dB, and gain select=0dB.) Symbol Min. Typ. Max. Unit Current consumption upon no signal Parameter IQ − 9 22 mA Maximum input voltage VIM 2.2 2.5 − Vrms ATT=0dB Output THD=1% Maximum output voltage VoM 2.2 2.5 − Vrms OutputTHD=1% BW=400~30KHz Voltage gain GV −2 0 +2 dB Full harmonic distortion rate THD − 0.05 0.1 % Output noise voltage VNO − 6 12 µVrms Rg=0Ω ∗ Residual noise voltage µVrms Volume= − ∗ − 6 12 CT − 94 60 dB Channel balance CB −1.5 0 1.5 dB RIN1 15.0 18.8 22.6 KΩ Volume step resolution ATSTEP − 1 − dB Volume maximum attenuation ATMIN −80 −94 − dB Bass control range VB + − 8.5 + − 10.5 + − 12.5 dB Treble control range VT + −8 + − 10 + − 12 dB VDB 18 20 22 dB Input impedance Dynamic bass control range VIN=0Vrms Vo=1Vrms 8 VMNO Cross-talk Conditiond Measure based on CH1. f=60Hz VIN=10mVrms VP-9690A (detection of mean value, indication of root-mean-value) IHF-A filter of MATSUSHITA is used for measurement of "∗". Operation specification : The phase between I/O signal terminals is the same. Radiation resistance is not included in the design. !Application Circuit 0.033µ 0.022µ 0.47µ 0.1µ 130k BIN1 SIMIN1 2 1 24 BASS1 SIMOUT1 3 23 BOUT1 22 BASS BOOST FILTER +6dB fixed VOL 4 5.6k TRE1 0dB 6dB variable IN1 0.1µ BASS TRE 10µ OUT1 21 DATA 10 20 SI 10k VCC 5 200k FILTER + 6 DIGITAL CONTROL − 200k 22µ 19 1/2VCC 18 SCK 10k LATCH DBC 0.1µ 7 17 8 IN2 OUT2 VOL BASS 16 TRE +6dB fixed BASS BOOST SIMOUT2 0dB 6dB variable SIMIN2 9 10µ BASS2 10 11 12 10µ FILTER TRE2 13 BIN2 14 15 BOUT2 130k 0.033µ 0.022µ 0.47µ 0.1µ 0.1µ 5.6k 2/2