nte7211 & NTE7212 integrated circuit class ab audio power amplifier, 2 channel description: the nte7211 and NTE7212 are audio power amplifier hybrid integrated circuits in a 15 ? lead sip type package consisting of optimally ? designed discrete component power amplifier circuits. features: miniature package available in 2 different outputs (thd = 0.4%, f = 20hz to 20khz): 50w/ch (nte7211) 80w/ch (NTE7212) output load impedance: r l = 6 allowable load shorted time: 0.3 seconds supports the use of standby, muting, and load shorting protection circuits absolute maximum ratings: (t a = +25 c unless otherwise specified) maximum supply voltage (no signal), v cc max nte7211 54v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTE7212 65v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . maximum supply voltage (r l = 6 ), v cc max nte7211 47v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTE7212 57v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . recommended supply voltage (r l = 6 ), v cc nte7211 32v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTE7212 39v . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating junction temperature (note 1), t j max +150 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . operating ic substrate temperature (not 1), t c max +125 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . storage temperature range, t stg ? 30 to +125 c . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . thermal resistance, junction ? to ? case (per power transistor), r thjc 2.2 c/w . . . . . . . . . . . . . . . . . allowable load shorted time (r l = 6 , f = 50hz), t s nte7211 (v cc = 32v, p o = 50w) 0.3s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . NTE7212 (v cc = 39v, p o = 80w) 0.3s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . note 1. both the t j max and the t c max conditions must be met. free datasheet http://
operating characteristics: (t a = +25 c, r l = 6 (non ? inductive load), r g = 600 , vg = 30db, note 2 unless otherwise specified) parameter symbol test conditions min typ max unit output power nte7211 p o v cc = 32v f = 20hz to 20khz, thd = 0.4% ? 50 ? w f = 1khz, thd = 10% ? 80 ? w NTE7212 v cc = 39v f = 20hz to 20khz, y5d = 0.4% ? 80 ? w f = 1khz, thd = 10% ? 120 ? w total harmonic distortion thd v cc = 32v, vg = 30db f = 20hz to 20khz, p o = 1w ? ? 0.4 % f = kkhz, p o = 5w ? 0.01 ? % frequency characteristics f l , f h v cc = 32v, p o = 1w, +0 ? 3db ? 20 to 50k ? hz input impedance r i v cc = 32v, f = 1khz, p o = 1w ? 55 ? k output noise voltage v no v cc = 39v, r g = 2.2k , note 3 ? ? 1.2 mv rms quiescent current i cco v cc = 39v 10 40 80 ma neutral voltage v n v cc = 39v ? 70 0 +70 mv note 2. unless otherwise noted, use a constant ? voltage supply for the power supply used during inspection. note 3. the output noise voltage values shown are peak values read with a vtm. however, an ac stabilized (50hz) power supply should be used to minimize the influence of ac primary side flicker noise on the reading. pre +v cc pre ? v cc pin connection diagram (front view) ch 2 ? ve ch 2 +ve ? v cc +v cc ch 1 ? ve ch 1 +ve ch 1 input sub gnd ch 1 nf no pin 13 12 11 10 9 8 7 bias 6 5 4 3 2 1 ch 2 input ch 2 nf 15 14 free datasheet http://
.827 (21.0) 1.220 (31.0) 2.331 (59.2) 2.050 (52.0) .335 (8.5) .142 (3.6) dia (2 places) 1.102 (28.0) .079 (2.0) .197 (5.0) 115 free datasheet http://
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