NTE1633 Integrated Circuit TV Sound Channel w/DC Controls Description: The NTE1633 is a complete TV sound channel in a 20–Lead DIP type package with DC tone and volume controls plus separate VCR input and output connections. Supplied in a 20–pin DIP, the device delivers an output power of 4W into 16Ω (d = 10%, VS = 24V) or 1.5W into 8Ω (d = 10%, VS = 12V). Included in the NTE1633 are: IF amplifier limiter, active low–pass filter, AF preamplifier and power amplifier, turnoff muting, mute circuit and thermal protection. High output, high sensitivity, excellent AM rejection and low distortion make the device suitable for use in TVs of almost any type. Further, no screening is necessary because the device is free of radiation problems. Features: D Separate VCR Input and Output Pins D 4W Output Power into 16Ω D No Screening Required D High Sensitivity D Excellent AM Rejection D Low Distortion D DC Tone/Volume Controls D Thermal Protection Absolute Maximum Ratings: Supply Voltage (Pin18), VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28V Voltage at Pin1, Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±VS Input Voltage (Pin2), Vi . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Vpp Output Peak Current, IO Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5A Non–Repetitive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2A Current (Pin4), I4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10mA Power Dissipation (Tpins = +90°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.3W Power Dissipation (TA = +70°C), Ptot . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0W Operating Junction Temperature Range, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to 150°C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –40° to 150°C Maximum Thermal Resistance, Junction–to–Pins, RthJPins . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14°C/W Maximum Thermal Resistance, Junction–to–Ambient (Note 1), RthJA . . . . . . . . . . . . . . . . . . 80°C/W Note 1. Obtained with GND pins soldered to printed circuit with minimized copper area. Electrical Characteristics: VS = 24V, S1: ON, ∆f = ± 25kHz, Vi = 1mV, P1 = 12kΩ, fo = 4.5MHz, fm = 400Hz, TA = +25°C unless otherwise indicated) Parameter Symbol Test Conditions Min Typ Max Unit 10.8 – 27 V 11 12 13 V DC Characteristics Supply Voltage (Pin18) VS P2 = 12kΩ Quiescent Output Voltage (Pin18) VO DC Voltage (Pin1) V1 P2 = 12kΩ, R1 = 270kΩ – 5.3 – V DC Voltage (Pin4) V4 P2 = 12kΩ – 3.2 – V Quiescent Drain Current (Pin4) Id – 32 – mA – 50 100 µV 140 200 280 mV m = 0.3, V1 = 1mV, VO = 4Vrms, Note 2 – 60 – dB ∆f = 0, P2 = 12kΩ – 30 – kΩ – 6 – pF 0.75 1.1 1.5 kΩ IF Amplifier & Detector Input Limiting Voltage @ Pin2 (–3dB) Vi(threshold) VO = 4Vrms Recovered Audio Voltage (Pin9) V9 Amplitude Modulation Rejection AMR ∆f = ± 7.5kHz, P2 = 12kΩ Input Resistance (Pin2) Ri Input Capacitance (Pin2) Ci De–Emphasis Resistance R9 C1 = 60 to 888nF KV P2 = 0Ω – 0 – dB P2 = 4.3kΩ 20 26 32 dB P2 = 12kΩ – 88 – dB K = 0dB – 0 – V K = 26dB – 1.3 – V K = 88dB – 2.6 – V Tpins = +25° to +85°C, P2 = 4.3kΩ – –0.05 – dB °C KT S1: OFF, V10 = 200mV, P1 = 12kΩ to 100kΩ, fAF = 10kHz – 14 – dB PO VS = 24V, RL = 16Ω 3.5 4.1 – W VS = 12V, RL = 8Ω – 1.5 – PO = 1W, RL = 16Ω, S1: OFF, V10 = 200mV VO = 4Vrms, @ 400Hz 15 50 – kHz P2 = 12kΩ, ∆ f =0, fripple = 120Hz – 26 – dB DC Volume Control Volume Attenuation (Resistance Control) Control Voltage Volume Attenuation Thermal Drift (Resistance Control) VC ∆KV ∆Tpins DC Tone Control Tone Cut Audio Frequency Amplifier Output Power (d = 10%) Frequency Response of Audio Amplifier (–3dB) Supply Voltage Rejection Note 2. Test Bandwidth = 20kHz B SVR Electrical Characteristics (Cont’d): VS = 24V, S1: ON, ∆f = ± 25kHz, Vi = 1mV, P1 = 12kΩ, fo = 4.5MHz, fm = 400Hz, TA = +25°C unless otherwise indicated) Parameter Symbol Total Harmonic Distortion of Pin9 Output Signal d Supply Voltage Rejection at Output Pin9 Test Conditions Min Typ Max Unit ∆ f = ±7.5kHz, Vi = 1mV – 0.5 – % SVR ∆f = 0, fripple = 120Hz, P2 = 12kΩ – 66 – dB Signal–to–Noise Ratio at Output Pin9 S+N N ∆f = ±25kHz, VI ≥ 1mV – 70 – dB Input Voltage (Playback) V10 Vo = 4Vrms, P2 = 0, S1: OFF 50 70 100 mV Input Resistance (Playback) R10 S1: OFF 10 – – kΩ Total Harmonic Distortion for 20dB Overload of V10 d S1: OFF, V10 = 1Vrms, VO = 4Vrms – 0.5 2.0 % S+N N Vi ≥ 1mV, VO = 4Vrms, ∆f = 0, Note 2 – 70 – dB VS = 24V, RL = 16Ω – 0.5 – % VS = 12V, RL = 8Ω – 0.5 – % VCR Overall Circuit Signal–to–Noise Ratio Distortion d PO = 50mW, ∆ =± ∆f ±7.5Hz, Note 2 Muting M VO = 4Vrms @ no V1; V1 = 0, Note 2 – 100 – dB Deviation Sensitivity ∆f P2 = 0 – 3 6 kHz VO = 4Vrms Note 2. Test Bandwidth = 20kHz Pin Connection Diagram Turn–Off Muting 1 Sound IF Input 2 IF Decoupling 3 IF Decoupling 4 20 AF PA Input 19 AF PA Feedback 18 VCC 17 AF PA Output GND 5 16 GND GND 6 15 GND Detector (FM) 7 14 DV VC Output Detector (FM) 8 13 Volume Control De–Emphasis & VCR Output 9 VCR Input 10 12 Tone Control 11 Tone Control Capacitor 20 11 .280 (7.12) Max 1 10 .995 (25.3) Max .300 (7.62) .280 (7.1) .100 (2.54) .125 (3.17) Min .385 (9.8)