dual pre-power amp S1A0134A01 1 introduction the S1A0134A01 is a monolithic integrated circuit designed for use in low voltage and low power applications. it has various functions including those of a dual audio pre-power amplifier, dc volumecontrol and headphone drive circuits. it is suitable for portable tape recorders or headphone cassette recorders. features ? built-in dc volume control circuit ? wide operation supply voltage: v cc = 1.8v ? 6v ? only a few components needed to build headphone cassette tape recorders ? built-in ripple filter ordering information block diagram device package operating temperature S1A0134A01-d0b0 16 - dip - 300a - 20 c ? +75 c 16 - dip - 300a 16 15 14 13 12 11 pre gnd pre input1 nf1 pre out1 power input1 ripple filter power out1 power gnd 1 2 3 4 5 6 7 8 9 10 pre input2 nf2 pre out2 power input2 power out2 v ref cont v cc power amp2 power amp1 pre amp2 pre amp1 + - + - volume control v ref ripple filter
S1A0134A01 dual pre-power amp 2 absolute maximum ratings (t a = 25 c) electrical characteristics (v cc = 3v, ta = 25 c, f = 1khz, r l1 = 10k w , unless otherwise specified) pre-amplifier section (v cc = 3v, ta = 25 c, f =1khz, r l1 =10k w , unless otherwise specified) characteristic symbol value unit supply voltage v cc 7 v power dissipation p d 750 mw operating temperature t opr - 20 ? +75 c storage temperature t stg - 40 ? +125 c characteristic symbol test conditions min. typ. max. unit quiescent circuit current i ccq1 v i = 0, v ol = min - 9 13 ma i ccq2 v i = 0, v ol = max - 11 - ma cross talk ct r g = 2.2k w , v o = - 10dbm 34 40 - db characteristic symbol test conditions min. typ. max. unit open loop voltage gain g vo v i = 0.2mv 55 62 - db closed loop voltage gain g vc1 v o = - 10dbm, nab 1khz - 33 - db output voltage v o thd = 1% 600 720 - mv total harmonic distortion thd 1 v o = - 10dbm - 0.04 0.1 % ripple rejection ratio rr 1 r g = 2.2k w v r = - 20dbm, f r = 100hz - 46 - db equivalent input noise voltage v ni r g = 2.2k w , bw = 30 - 20khz gain for nab 1khz - 1.2 2.0 m v
dual pre-power amp S1A0134A01 3 power amplifier section (v cc = 3v, ta = 25 c, f = 1khz, r l2 = 32 w , unless otherwise specified) characteristic symbol test conditions min. typ. max. unit output power p o1 thd2 = 10% 20 27 - mw p o2 thd2 = 10%, rl = 16 w - 39 - mw total harmonic distortion thd 2 p o = 10mw, volume: 100% - 0.5 1.2 % thd 3 p o = 10mw, volume: 50% - 0.3 - % closed loop voltage gain g vc2 v o = - 0dbm, volume: 100% 28 30 32 db g vc3 v o = - 10dbm, volume: 50% - 15 - db channel balance cb v o = - 10dbm - 1.5 0 1.5 db volume rejection ratio vol rej v o = - 10dbm volume: 100% to 0% 66 72 - db output noise voltage v no bw = 30 - 20khz, r g = 600 w - 250 320 m v ripple rejection ratio rr 2 r g = 600 w , f r = 100hz v r = - 20dbm - 46 - db
S1A0134A01 dual pre-power amp 4 test circuit 100 m f 240 w 6.8k w r l2 4.7 m f 0.018 m f 82k w 4.7 m f 10k w 220 m f power in 1 pre in 1 S1A0134A01 1 2 3 4 7 12 11 10 9 8 5 6 14 13 16 15 240 w 6.8k w 4.7 m f 0.018 m f 82k w 4.7 m f 10k w power in 2 pre in 2 22 m f 22 m f 36k w 16k w a b c r l2 220 m f 100 m f power out2 v cc power out1 pre out 1 pre out 2 r l1 r l1 2.2k w 2.2k w
dual pre-power amp S1A0134A01 5 application circuit 100 m f 240 w 6.8k w r l 0.018 m f 220 m f 22 m f 220 m f 100 m f v cc from radio 1 2 3 4 7 12 11 10 9 8 5 6 14 13 16 15 volume control + - + - pre amp 2 pre amp 1 power amp 2 power amp 1 82k w 4.7 m f 4.7 m f 240 w 6.8k w 0.018 m f 22 m f from radio 82k w 4.7 m f 4.7 m f r l 100 m f 1000pf 1000pf 47k w
S1A0134A01 dual pre-power amp 6 notes
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