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NTE7055 Integrated Circuit Dual Audio Power Amplifier, 2W
Description: The NTE7055 is a dual audio power amplifier in a 14-Lead DIP type package designed for portable audio sets. Features: D Wide Operating Voltage Range: VCC = 3V to 16V D High Output Power: PO = 2W at VCC = 12V, RL = 8, THD = 10% PO = 1.6W at VCC = 9V, RL = 4, THD = 10% PO = 1.2W at VCC = 9V, RL = 8, THD = 10% PO = 0.7W at VCC = 6V, RL = 4, THD = 10% PO = 0.5W at VCC = 6V, RL = 8, THD = 10% PO = 80mW at VCC = 4.5V, RL = 32, THD = 10% D High Supply Voltage Rejection: SVR = 45dB D Low Quiescent Current: ICC = 12mA D Low Pop Noise at Power ON/OFF Absolute Maximum Ratings: (TA = +25C unless otherwise specified) Supply Voltage (No Signal), VCC1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18V Supply Voltage (Operating), VCC2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16V Allowable Power Dissipation (Note 1), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4W Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40 to +150C Note 1. 50 x 50 x 0.035mm copper heat sink on PCB. Recommended Operating Conditions: (TA = +25C unless otherwise specified)
Parameter Supply Voltage Symbol VCC(16) VCC(8) VCC(4) Load Impedance Voltage Gain RL GV Test Conditions RL = 16 RL = 8 RL = 4 Min 3 3 3 4 34 Typ - - - 8 44 Max 16 13 9 - - Unit V V V dB
Electrical Characteristics: (TA = +25C, VCC = 9V, Rf = 33, f = 1kHz, RL = 8 unless otherwise specified)
Parameter Circuit Current Voltage Gain Output Power Symbol ICC GV1 GV2 PO1 PO2 PO3 PO4 PO5 PO6 Total Harmonic Distortion Output Noise Voltage Supply Voltage Rejection Crosstalk Channel Balance Input Impedance THD1 THD2 NL SVR CT Ch. B. Zin
Pin Connection Diagram
Test Conditions No Signal PO = 0.25W, Rf = 33 PO = 0.25W, Rf = 120 VCC = 12V, RL = 8, THD = 10% VCC = 9V, RL = 4, THD = 10% VCC = 9V, RL = 8, THD = 10% VCC = 6V, RL = 4, THD = 10% VCC = 6V, RL = 8, THD = 10% VCC = 4.5V, RL = 32, THD = 10% PO = 0.5W, Rf = 33 PO = 0.5W, Rf = 120 RG = 10k RG = 0, fripple = 100Hz, Vripple = 0.3Vrms RG = 0, PO = 0.25W PO = 0.25W
Min
Typ 12 44 34 2.0 1.6 1.2 0.7 0.5 80 0.4 0.3 0.9 45 55 0 5
Max 25 47 - - - - - - - 1.6 - 1.5 - - +2 -
Unit mA dB dB W W W W W mW % % mVrms dB dB dB M
-
41 - - - 0.9 - - - - - - 38 40 -2 -
Filter Input 2 NFB 2 Compensation 2 Bootstrap 2 Output 2 GND
1 2 3 4 5 6 7 Tab/GND
14 13 12 11 10 9 8
GND Input 1 NFB 1 Compensation 1 VCC Bootstrap 1 Output 1
.968 (24.6) Max .763 (19.4) Max
0.39 (0.99) Dia .177 (4.5) .300 (7.62) .256 (6.5)
.015 (0.38) .026 (0.66) .047 (1.2) .126 (3.2) .175 (4.4) .195 (4.9) .100 (2.54) .330 (8.4)

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