esmt/emp preliminary ad22650 elite semiconductor memory technology inc./elite micropower inc. publication date: dec. 2011 revision: 0.2 1/19 3-vrms cap-less line driver with adjustable gain features z operation voltage: 3v to 5.5v z cap-less output - eliminates output capacitors - improves low frequency response - reduces pop/clicks z low noise and thd - snr > 102db - typical vn < 12uvrms - thd+n < 0.02% z maximum output voltage swing into 2.5k load - 2vrms at 3.3v supply voltage - 3vrms at 5v supply voltage z differential input z external gain setting from 1v/v to 10v/v z fast start-up time : 0.5ms z integrated de-pop control z external under voltage protection z thermal protection z less external components required z +/-8kv iec esd protection at line outputs ordering information applications z lcd / pdp tvs z cd / dvd players z set-top boxes z home theater in box description the ad22650 is a 3-vrms cap-less stereo line driver. the device is ideal for single supply electronics. cap-less design can eliminate output dc-blocking capacitors for better low frequency response and save cost. the ad22650 is capable of delivering 3-vrms output into a 2.5k ? load with 5v supply. the gain settings can be set by users from 1v/v to 10v/v externally. the ad22650 has internal and external under voltage protection to prevent pop noise. build-in shutdown control and de-pop control sequence also help ad22650 to be a pop-less device. the ad22650 is available in a 14-pin tssop package. product id package packing comments AD22650-QH14NAT 96 units / tube 100 tubes / small box ad22650-qh14nar tssop-14 2.5k units tape & reel green simplified application circuit
esmt/emp preliminary ad22650 elite semiconductor memory technology inc./elite micropower inc. publication date: dec. 2011 revision: 0.2 2/19 pin assignments linp linn en sgnd cn pvss outl rinp rinn pgnd uvp cp pvdd outr tssop-14 (top view) 1 2 3 4 5 6 7 14 13 12 11 10 9 8 pin description no. name type (1) pin description 1 linp i left channel op positive input 2 linn i left channel op negative input 3 outl o left channel op output 4 sgnd p signal ground 5 en i enable input, active high 6 pvss o supply voltage 7 cn i/o charge-pump flying capacitor negative terminal 8 cp i/o charge-pump flying capacitor positive terminal 9 pvdd p positive supply 10 pgnd p power ground 11 uvp i under-voltage protection input 12 outr o right channel op output 13 rinn i right channel op negative input 14 rinp i right channel op positive input (1) i=input, o=output, p=power
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