SM7347A

www.DataSheet.co.kr SAMHOP Microelectronics Corp. 6 CHANNELS VOLUME CONTROLLER SM7347A GENERAL DESCRIPTION The SM7347A is 6 channels electronic volume controlled by 3-wire serial data. The IC is suitable for use in DVD systems and AV. FEATURES * Built-in microcomputer interface circuit controlled by 16-bit serial data. * Electronic volume Volume level......0dB~-95dB, - ∞dB(1dB/ step) APPLICATIONS * DVD Receivers * Home Audio equipment * AV PIN ASSIGNMENTS BLOCK DIAGRAM DVDD AVDD SWin GNDS SRin SLin GNDC Cin GNDR GNDL Rin Lin NC NC 1 2 3 4 5 6 7 8 9 1 0 1 1 2 1 3 1 4 28 27 26 25 24 23 22 21 20 19 18 17 16 15 CLK DATA LATCH DGND AGND SWout SRout SLout Cout Rout Lout AVSS NC NC C input SW input SL input SR input L input R input volume C output SW output SL output SR output L output R output μ-com interface Latch Data CLK SOP 28PIN Page 1 MAY.2003 Datasheet pdf - http://www.DataSheet4U.net/ www.DataSheet.co.kr SAMHOP Microelectronics Corp. 6 CHANNELS VOLUME CONTROLLER SM7347A PIN DESCRIPTION Pin No. 1 2 3 5 6 8 11 12 23 22 21 20 19 18 17 24 25 26 27 28 4 7 9 10 Symbol DVDD AVDD SWin SRin SLin Cin Rin Lin SWout SRout SLout Cout Rout Lout AVSS AGND DGND LATCH DATA CLK GNDS GNDC GNDR GNDL GND Connect to analog GND Analog negative Power supply Analog GND Digital GND Latch INPUT Data INPUT Clock INPUT Fowrward data 39,40,41 S INPUT:schmitt trigger type -7V Volume OUTPUT 3,5,6,8,11,12 18 to 22 KΩ (TYP) Function Digital Power supply Analog positive Power supply ...