NTE1273 integrated circuit dual, audio power amp, 5w/ch description: the NTE1273 is a bipolar monolithic integrated circuit in a 20 ? lead dip type package. this 2 channel audio power amplifier is ideal for use in high power car radio applications. features: low distortion self centering bias high peak output current dual channel/btl amp use low offset voltage (between ch1 and ch2 dc voltage) absolute maximum ratings: (t a = +25 c unless otherwise specified) supply voltage, v cc 18v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . output peak current (per channel), i o(peak) 4a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . power dissipation, p d 20w . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating temperature range, t opr ? 20 to +75 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ? 55 to +150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . electrical characteristics: (t a = +25 c, v cc = 13.2v, r l = 4 ? , r g = 600 ? , r f = 68 ? , f = 1khz, dual channel operation, g v = 54db unless otherwise specified) parameter symbol test conditions min typ max unit quiescent current i ccq 20 36 70 ma output power p o thd = 10%, note 1 4.2 4.8 ? w btl, thd = 10%, note 1 ? 15 ? w thd = 10%, r l = 2 ? ? 7.5 ? w maximum output power p om dual ? 6 ? w btl ? 20 ? w total harmonic distortion thd dual, p o = 1w ? 0.2 0.8 % output noise voltage v no r g = 10k ? ? 1.2 3.0 mv bw = 50hz to 20khz ? 1.2 3.0 mv note 1. g v = 47k ? /r f (g v max = 70db)
electrical characteristics (cont?d): (t a = +25 c, v cc = 13.2v, r l = 4 ? , r g = 600 ? , r f = 68 ? , f = 1khz, dual channel operation, g v = 54db unless otherwise specified) parameter symbol test conditions min typ max unit channel separation csr r g = 10k ? , p o = +10dbm ? ? 58 ? db ripple rejection rr v in = 0dbm, 100hz, r g = 0 ? ? ? 48 ? db input resistance r in ? 40 ? k ? voltage gain g vo r f = 0 ? 70 75 ? db v in = ? .245mv rms 70 75 ? db pin connection diagram v cc high freq comp 2 gnd high freq comp 1 bypass 2 1 2 3 4 bypass 1 input 1 feedback 1 5 bypass 1 6 high freq comp 1 7 bypass 1 8 gnd 20 19 18 17 bypass 2 input 2 feedback 2 high freq comp 2 16 15 bypass 2 14 13 gnd 9 output 1 12 output 2 10 11 .945 (24.0) .602 (15.3) .700 (17.78) .335 (8.5) .142 (3.6) 1.062 (26.9) .197 (5.0) .020 (.508) .118 (2.9) typ 1 10 11 20 .161 (4.0) 1.200 (30.5) max
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