NTE1675 Integrated Circuit Dual AF Power Amp, 8.5W Features: D Small idling current (20mA/2 channels) enabling prolonged battery life. D Small dependence of idling current on VCC. D High power (8.5W typ. X 2). D High ripple rejection (60dB at steady state). Since filters are arranged in 3 stages (including 1 stage inside IC) to attain satisfactory ripple rejection at transient state, ripple occurring at the time of motor start can be prevented from mising in. D Small pop noise at the time of power supply ON/OFF and good starting balance between both channels (0.6 sec) due to built−in pop noise limiter. D Pins provided for compensating high frequency response. D Small residual noise (0.4mV). D Wide supply voltage range (6 to 24V) easing design of transformer power supply. D Built−in thermal shutdown circuit. D Designed so that inverse insertion or short between adjacent pins causes no destruction. D Channel−to−channel mirror image pin assignment and provision of Pre GND, Power GND pins enabling stable operation and easing artwork of printed circuit board. D Minimum number of external parts required (9 pcs. min, 12 pcs. typ) D Audio muting capability (for automatic music selection, electronic tuner). Absolute Maximum Ratings: (TA = +25°C unless otherwise specified) Maximum Supply Voltage, VCCmax . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V Maximum Output Current, Iopeak 1 channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A Allowable Power Dissipation, Pdmax With infinite heat sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15W Operating Temperature, Topg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −20 to +75°C Storage Temperature, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −40 to +150°C Recommended Operating Conditions: (TA = +25°C unless otherwise specified) Recommended Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15V Load Resistance, RL Stereo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3ohm Electrical Characteristics Parameter Quiescent Current Voltage Gain Voltage Gain Difference Output Power Total Harmonic Distortion Input Resistance Output Noise Voltage Ripple Rejection Channel Separation (TA = 25°C, VCC = 15V, RL = 30Ω (Stereo), f = 1kHz, Rg = 600Ω unless otherwise specified) Symbol ICCO Test Conditions Min Typ 10 20 30 mA 48 50 52 dB − − ±1 dB 7.5 8.5 − W − 0.3 1.5 % − 30 − kΩ Rg = 0, f = 20Hz to 20kHz, Band−pass filter − 0.4 1.0 mV Rg = 10kΩ, f = 20 to 20kHz, Band−pass filter − 0.6 2.0 mV Rg=0, fR = 100Hz, VR = 0dBm 50 60 − dB Rg = 10kΩ, VO = 0dBm 45 55 − dB Stereo VG ∆VG Channels 1,2 PO THD = 10% THD VO = 2V ri VNO Rr ch sep Pin Connection Diagram VCC Bootstrap Switch Distortion Output Phase Compensation Phase Compensation N.F. Input DC (A) Pre GND 1 2 3 4 5 6 7 8 9 10 20 19 18 17 16 15 14 13 12 11 Power GND Bootstrap Switch Distortion Output Phase Compensation Phase Compensation N.F. Input DC (B) TSD Control .945 (24.0) 11 20 .142 (3.6) .335 (8.5) 1 .700 (17.78) 10 .602 (15.3) 1.062 (26.9) .197 (5.0) .161 (4.0) .020 (.508) .118 (2.9) Typ Max Unit