BH3865S

www.DataSheet4U.com BH3865S Video ICs Dual-line serial control sound processor IC BH3865S The BH3865S is a signal processing IC developed for the control of volume and tone quality in TV equipment. Since dual-line serial control (I2C BUS) is used, the volume level and tone quality in TV equipment can be changed using signals such as those from a microcomputer or similar device. Note : I2C BUS is a registered trademark of Philips. !Applications DVDs, personal computers, high-vision TVs, karaoke sets, digital broadcasts, CATVs, and other TV equipment !Features 1) 2-channel volume and sound quality control. 2) Absorption of volume deviation between input sources and improved S / N ratio, for better sound quality, using an AGC circuit. 3) Control through I2C BUS serial control. 4) Internal pseudo-stereo circuit provides phase-shift matrix surround effect. !Absolute maximum ratings (Ta = 25°C) Parameter Power supply voltage Power dissipation Operating temperature Storage temperature Symbol VCC Pd Topr Tstg Limits 10.0 1250∗ −25~+75 −55~+125 Unit V mW °C °C ∗Reduced by 12.5mW for each increase in Ta of 1˚C over 25˚C. !Recommended operating conditions (Ta = 25°C) Parameter Power supply voltage Symbol VCC Min. 7.0 Typ. Max. 9.5 Unit V DataSheet 4 U .com www.DataSheet4U.com BH3865S Video ICs !Block diagram BGAIN MSIN ADD STT STT LOUT LOUT LOUT VCC BIN LB LB LIN LT DAC 32 31 30 29 28 27 26 10k 25 MIX OFF BASS MIX ON 24 23 22 21 20 19 18 17 VCC 50k OFF SMON...