csc 2323 v1.1 - 1 - july, 2003 6-ch audio selector CSC2323 description csc 2323 is a 6-channel audio sele ctor utilizing cmos technology specially designed for home theater system. it provides a built-in 2-channel to 6-channel tran slator, which can directly mix traditional stereo channel to simulate a 6-channel audio output. single power supply (9v), i 2 c bus interface as well as very low total harmonic distortion (thd < 0.005%) and other features are incorporated into a single chip thereby providi ng very high performance. pin assignments and application circuit are optimized for easy pcb layout and cost saving advantages. features z supply voltage: 9v z 4 stereo inputs z one 6-channel input z maximum input voltage: 3.75vrms (1khz, thd<1%) z low total harmonic distortion, thd<0.005% (1khz, 0.2vrms) z low noise: no<4 vrms z i 2 c bus interface z available in 28 pins , dip or sop package applications z av system z mini compo z car stereo z multi-media audio systems
csc 2323 v1.1 - 2 - july, 2003 6-ch audio selector CSC2323 pin configuration CSC2323 l1 l2 l3 l4 fli cti subi sl i sri mixo vcc ref fri gnd r1 r2 r3 r4 lpf_i lpf_ o flo fro cto subo sl o sro scl sda
csc 2323 v1.1 - 3 - july, 2003 6-ch audio selector CSC2323 application circuit csc 2323 28pin l1 l2 l3 l4 fli cti subi sli sri mixo vcc ref fri gnd r1 r2 r3 r4 lpf_i lpf_o flo fro cto subo slo sro scl sda 10 f 0.1 47 f 270 (n ot e ) 270 (n ot e ) 270 (n ot e ) 270 (n ot e ) 270 (n ot e ) 270 (n ot e ) + + + + + + i c b u s 2 10 f 100k c2 c1 from mixo 10 f 100k rch1 rch2 rch3 rch4 10 f 100k lch1 lch2 lch3 lch4 6c h in 6c h out + + + + << << 9v 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 note: * = an external resistor (r=270 ? ) must be connected in series to each of the output pins (flo, fro, cto, subo, slo, sro) and must be as close as possible to the pt2323 chip.
csc 2323 v1.1 - 4 - july, 2003 6-ch audio selector CSC2323 order information valid part number package type top code csc 2323 28 pins, di package (600 mil) CSC2323 csc 2323-s 28 pins, so package (330 mil) CSC2323-s
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