NTE7000 Integrated Circuit 5W Audio Amplifier with Muting Description: The NTE7000 is a monolithic integrated circuit in a 16–Lead DIP type package intended for use as a low frequency power amplifier in a wide range of applications in radio and TV sets. Features: D Muting Facility D Protection Against Chip Over Temperature D Very Low Noise D High Supply Voltage Rejection D Low “Switch–On” Noise D Voltage Range: 4V to 30V Absolute Maximum Ratings: Supply Voltage, VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30V Output Peak Current, IO Non–Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3A Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5A Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +VS V Differential Input Voltage, VI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±7V Muting Threshold Voltage, V11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . VS V Power Dissipation, Ptot TA = +80°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1W TC = +60°C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6W Junction Temperature Range, Tj . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to +150°C Electrical Characteristics: (TA = +25°C, Rth(heatsink) = 20°C/W, unless otherwise specified) Parameter Symbol Supply Voltage VS Quiescent Output Voltage VO Test Conditions Min Typ Max Unit 4 – 30 V VS = 4V 1.6 2.1 2.5 V VS = 14V 6.7 7.2 7.8 V VS = 30V 14.4 15.5 16.8 V Electrical Characteristics (Cont’d): (TA = +25°C, Rth(heatsink) = 20°C/W, unless otherwise specified) Parameter Quiescent Drain Current Output Stage Saturation Voltage Output Power Harmonic Distortion Input Sensitivity Input Saturation Voltage (rms) Input Resistance (Pin8) Symbol Id VCEsat PO d Vi Vi Ri Test Conditions Min Typ Max Unit Vs = 4V – 15 – mA VS = 14V – 17 – mA VS = 30V – 21 35 mA IC = 1A – 0.5 – V IC = 2A – 1 – V 2.2 2.5 – W VS = 14V, RL = 4Ω 5 5.5 – W VS = 18V, RL = 8Ω 5 5.5 – W VS = 24V, RL = 16Ω 4.5 5.3 – W VS = 9V, RL = 4Ω, PO = 50mW to 1.5W – 0.1 – % VS = 14V, RL = 4Ω, PO = 50mW to 3W – 0.1 – % VS = 18V, RL = 8Ω, PO = 50mW to 3W – 0.1 – % VS = 24V, RL = 16Ω, PO = 50mW to 3W – 0.1 – % VS=9V, RL=4Ω, PO=2.5W – 37 – mV VS=14V, RL=4Ω, PO=5.5W – 49 – mV VS=18V, RL=8Ω, PO=5.5W – 73 – mV VS=24V, RL=16Ω, PO=5.3W – 100 – mV VS = 9V 0.8 – – V VS = 14V 1.3 – – V VS = 18V 1.8 – – V VS = 24V 2.4 – – V f = 1kHz 60 100 – KΩ d = 10%, VS = 9V, RL = 4Ω , f = 1kHz Note 1 f = 1kHz f = 1kHz Note 1. With an external resistor of 100Ω between Pin3 and +VS. Electrical Characteristics (Cont’d): (TA = +25°C, Rth(heatsink) = 20°C/W, unless otherwise specified) Parameter Drain Current Efficiency Symbol Id η Test Conditions f = 1kHz f = 1kHz Min Typ Max Unit VS=9V, RL=4Ω, PO=2.5W – 380 – mA VS=14V, RL=4Ω, PO=5.6W – 550 – mA VS=18V, RL=8Ω, PO=5.5W – 410 – mA VS=24V, RL=16Ω, PO=5.3W – 295 – mA VS=9V, RL=4Ω, PO=2.5W – 73 – % VS=14V, RL=4Ω, PO=5.5W – 71 – % VS=18V, RL=8Ω, PO=5.6W – 74 – % VS=24V, RL=16Ω, PO=5.3W – 75 – % Small Signal Bandwidth (–3dB) BW VS = 14V, RL = 4Ω, PO = 1W Voltage Gain (Open Loop) GV VS = 14V, f = 1kHz Voltage Gain (Closed Loop) GV VS = 14V, RL = 4Ω, f = 1kHz, PO = 1W Total Noise Input eN Supply Voltage Rejection Thermal Shut–Down Case Temperature S/N SVR Tsd Hz – 75 – dB 39.5 40.0 40.5 dB Rg = 50Ω – 1.2 – µV Rg = 1kΩ – 1.3 – Rg = 10kΩ – 1.5 4.0 Rg = 50Ω – 2.0 – Rg = 1kΩ – 2.0 – Rg = 10kΩ – 2.2 5.0 Rg = 10kΩ – 90 – Rg = 0 – 92 – Rg = 10kΩ, Note 2 – 87 – Rg = 0, Note 2 – 87 – VS = 18V, RL = 8Ω, RG = 10kΩ, fripple = 100Hz, Vripple = 0.5Vrms 40 50 – dB Ptot = 2.5W – 115 – °C Note 2 Signal to Noise Ratio 40 to 40,000 VS = 14V, PO = 5.5W, RL = 4Ω Note 2. Filter with noise bandwidth: 22Hz to 22kHz. dB Muting Function: Parameter Symbol Test Conditions Min Typ Max Unit Muting–Off Threshold Voltage (Pin4) VT(OFF) 1.9 – 4.7 V Muting–On Threshold Voltage (Pin4) VT(ON) 0 – 1.3 V 6.2 – VS Muting Off 80 200 – kΩ Muting On – 10 30 Ω 150 – – kΩ 50 60 – dB Input Resistance (Pin5) R5 Input Resistance (Pin4) R4 Muting Attenuation AT Rg + R1 = 10kΩ Pin Connection Diagram 1 16 GND VS 2 15 GND Bootstrap 3 14 GND Threshold 4 13 GND Muting 5 12 GND Inverting Input 6 11 GND SVR 7 10 GND Non–Inverting Input 8 9 Output 16 GND 9 .260 (6.6) Max 1 8 .785 (19.9) Max .300 (7.62) .200 (5.08) Max .245 (6.22) Min .100 (2.54) .700 (17.7)