LC75344MD

LC75344MD Two-Channel Electronic Volume Control System Overview The LC75344MD is a two-channel electronic volume control IC that is controlled by data input over a serial interface. Functions  Volume control: 0 dB to –50 dB in 1 dB steps, –52 dB to –78 dB in 2 dB steps, and –, for a total of 66 positions. A balance function can be implemented by controlling the left and right channels independently. Features  Built-in buffer amplifiers minimize the number of external components required.  Fabricated in a silicon gate CMOS process to minimize the switching noise generated by internal switches.  Built-in reference voltage generation circuit for the analog ground level.  All settings are controlled by data input over a serial interface that conforms to the CCB* specifications. www.onsemi.com SOIC-10 NB Specifications Absolute Maximum Ratings at Ta = 25C, VSS = 0 V Parameter Symbol Maximum supply voltage VDD max VDD Input voltage VIN max CE, CL, DI LIN, RIN Conditions Output voltage Allowable power dissipation Operating temperature VOUT1 VOUT2 Pd max Topr OSC S1 to S87, COM1 to COM4, P1 to P8 Ta ≤ 75°C *1: When mounted on a PCB. Storage temperature Tstg *1: Printed Circuit Board size : 76.1 x 114.3 x 1.6 tmm : Glass Epoxy Board Ratings unit 11 V –0.3 to +11.0 VSS –0.3 to VDD +0.3 V –0.3 to VDD +0.3 –0.3 to VLCD +0.3 V 300 mW –30 to +75 C –40 to +125 C Stresses exceeding those listed in the Maximum Ratings table may damage the device. If a...