NTE7197 Integrated Circuit High-Performance 68W Audio Power Amplifier w/Mute Description: The NTE7197 is a high-performance audio power amplifier in an 11-Lead Staggered SIP type package capable of delivering 68W of continuous average power to a 4Ω load and 38W into 8Ω with 0.1% THD+N from 20Hz to 20kHz. The performance of the NTE7197, utilizing proprietary protection circuitry, puts it in a class above discrete and hybrid amplifiers by providing an inherently, dynamically protected Safe Operating Area (SOA). This protection means that these devices are completely safeguarded at the output against overvoltage, undervoltage, overloads, including shorts to the supplies, thermal runaway, and instantaneous temperature peaks. The NTE7197 maintains an excellent signal-to-noise ratio of greater than 92dB with a typical low noise floor of 2.0μV. It exhibits extremely low THD+N values of 0.03% at the rated output into the rated load over the audio spectrum, and provides excellent linearity with an IMD (SMPTE) typical rating of 0.004%. Features: D Continuous Average Output Power: 68W into 4Ω at VCC = ±28V 38W into 8Ω at VCC = ±28V 50W into 8Ω at VCC = ±35V D 135W Instantaneous Peak Output Power Capability D Signal-to-Noise Ratio ≥ 92dB D An Input Mute Function D Output Protection from a Short to GND or to the Supplies via Internal Current Limiting Circuitry Applications: D Component Stereo D Compact Stereo D Self-Powered Speakers D Output Overvoltage Protection Against Transients from Inductive Loads D Supply Undervoltage Protection, not allow‐ ing Internal Biasing to occur when |VEE| + |VCC| ≤ 12V, thus Eliminating Turn-On and Turn-Off Transients D Wide Supply Range: +20V to +90V D Surround-Sound Amplifiers D High-End Stereo TVs Absolute Maximum Ratings: (Note 1, Note 2) Supply Voltage, |V+| + |V-| No Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94V Input Signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84V Common Mode Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (V+ or V-) and |V+| + |V-| ≤ 80V Differential Input Voltage (Note 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60V Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Internally Limited Power Dissipation (Note 4), PD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 125W ESD Susceptibility (Note 5) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3000V Operating Junction Temperature (Note 6), TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +150°C Lead Temperature (During soldering, 10sec), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +260°C Thermal Resistance, Junction-to-Case, RthJC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1°C/W Thermal Resistance, Junction-to-Ambient, RthJA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43°C/W Note 1. All voltages are measured with respect to the GND pin (Pin7), unless otherwise specified. Note 2. Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not guarantee specific performance limits. Electrical Characteristics state DC and AC electrical specifica‐ tions under particular test conditions which guarantee specific performance limits. This as‐ sumes that the device is within the Operating Ratings. Specifications are not guaranteed for parameters where no limit is given, however, the typical value is a good indication of device performance. Note 3. The differential input voltage Absolute Maximum Rating is based on supply voltages of V+ = +40V and V- = -40V. Note 4. For operating at case temperatures above +25°C, the device must be derated based on a +150°C maximum junction temperature and a thermal resistance of RthJC = 1.0°C/W (junctionto-case). Note 5. Human body model, 100pF discharged through a 1.5kΩ resistor. Note 6. The operating junction temperature maximum is +150°C, however, the instantaneous sage Operating Area temperature is +250°C. Operating Ratings: (Note 1) Supply Voltage, |V+| + |V-| . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +20 to +84V Temperature Range, TA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -20° to +85°C Note 1. All voltages are measured with respect to the GND pin (Pin7), unless otherwise specified. Electrical Characteristics: (TA = +25°C, V+ = +28V, V- = -28V, IMUTE = -0.5mA, RL = 4Ω, Note 1 unless otherwise specified) Parameter Power Supply Voltage Symbol Test Conditions Min Typ Max Unit 18 20 84 V 80 115 - dB |V+| + |V-| = 28V, RL = 4Ω 60 68 - V |V+| + |V-| = 28V, RL = 8Ω 30 38 - W |V+| + |V-| = 35V, RL = 8Ω - 50 - W - 135 - W - 0.03 - % |V+| + |V-| VPin7 = V- ≥ 9V, Note 7 Mute Attenuation AM Pin8 Open or at 0V, Mute: ON Current out of Pin8 > 0.5mA, Mute: OFF Output Power (Continuous Average) PO THD+N = 0.1% max, f = 1kHz, f = 20kHz Instantaneous Peak Output Power Peak PO Total Harmonic Distortion Plus Noise THD+N 60W, RL = 4Ω, 30W, RL = 8Ω, 20Hz ≤ f ≤ 20kHz, AV = 26dB Note 1. All voltages are measured with respect to the GND pin (Pin7), unless otherwise specified. Note 7. V- must have at least -9V at its pin with reference to GND in order for the undervoltage protection circuitry to be disabled. Electrical Characteristics (Cont'd): (TA = +25°C, V+ = +28V, V- = -28V, IMUTE = -0.5mA, RL = 4Ω, Note 1 unless otherwise specified) Parameter Symbol Test Conditions Min Typ Max Unit Slew Rate (Note 8) SR VIN = 2.0VP-P, tRISE = 2ns 8 19 - V/μs Total Quiescent Power Supply Current I+ VCM = 0V, VO = 0V, IO = 0A - 50 85 mA VOS VCM = 0V, IO = 0A - 1 10 mV IB VCM = 0V, IO = 0A - 0.2 1.0 μA Input Offset Current IOS VCM = 0V, IO = 0A - 0.01 0.2 μA Output Current Limit IO |V+| = |V-| = 20V, tON = 10ms, VO = 0V 7.0 11.5 - A |V+ - VO|, V+ = +28V, IO = +100mA - 1.6 2.0 V |VO - V-|, V- = -28V, IO = -100mA - 2.5 3.0 V V+ = 40V to 20V, V- = -40V, VCM = 0V, IO = 0mA 85 120 - dB V+ = 40V, V- = -40V to -20V, VCM = 0V, IO = 0mA 85 105 - dB V+ = 60V to 20V, V- = -20V to -60V, VCM = 20V to -20V, IO = 0mA 85 110 - dB |V+| = |V-| = 28V, RL = 2kΩ, ΔVO = 40V 90 115 - dB |V+| = |V-| = 30V, fo = 100kHz, VIN = 50mVrms 2 8 - MHz IHF — A Weighting Filter, RIN = 600Ω (Input Re‐ ferred) - 2 10 μV Input Offset Voltage Input Bias Current Output Dropout Voltage (Note 9) Power Supply Rejection Ratio Common Mode Rejection Ratio VOD PSRR CMRR Open Loop Voltage Gain AVOL Gain-Bandwidth Product GBWP Input Noise Signal-to-Noise Ratio Intermodulation Distortion Test eIN SNR IMD A-Wieghted, Measured at 1kHz, RS = 25Ω PO = 1W - 92.5 - dB PO = 60W - 110 - dB 60Hz, 7kHz 4:1 (SMPTE) - 0.004 - % 1:1 (SMPTE) - 0.009 - % Note 1. All voltages are measured with respect to the GND pin (Pin7), unless otherwise specified. Note 8. The feedback compensation network limits th bandwidth of the closed-loop response and so the slew rate will be reduced due o the high frequency roll-off. Without feedback compensation, the slew rate is typically larger. Note 9. The output dropout voltage is the supply voltage minus the clipping voltage. Pin Connection Diagram (Front View) 11 N.C. 10 VIN + 9 VIN 8 Mute 7 GND 6 N.C. 5 V+ 4 V- 3 Output 2 N.C. 1 V+ .177 (4.49) .793 (20.14) Max .130 (3.3) .192 (4.87) .771 (19.58) .150 (3.81) Dia .866 (22.0) .860 (21.84) .419 (10.64) 1 11 .067 (1.7) .670 (17.02) .200 (5.08) .169 (4.29)