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| Datasheet File OCR Text: |
| NTE2003 Integrated Circuit Dolby B-Type Noise Reduction Processor Description: The NTE2003 is a monolithic integrated circuit in a 16-Lead DIP type package specifically designed to realized the Dolby B-type noise reduction system. Features: D Reduced distortion at high frequencies and high signal levels D Improved transient stability D Wide Operating Voltage Range D Low Supply Current Absolute Maximum Ratings: Supply Voltage, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24V Operating Temperature Range, Topr . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to +70C Storage Temperature Range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to +150C Lead Temperature (During Soldering, 10sec Max), TL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +300C Electrical Characteristics: (VCC = 12V, TA = +25C, NB 0dB refers to 580mVrms Dolby level at Pin3 unless otherwise specified) Parameter Supply Voltage Range Supply Current Voltage Gain (Pin5-Pin3) (Pin3-Pin7) Distortion Signal Handling Signal-to-Noise Ratio Encode (CCIR Weighted) Decode 1kHz Pin6 & Pin2 Connected 1kHz (Noise Reduction Out) 1kHz, 0dB; 10kHz, 10dB 1kHz 0.3% Distortion Pin6 & Pin2 Connected, RS = 10k 65 +75 70 80 - - dB dB Test Conditions Min 9 12 24 -1 - 10 Typ - 17 26 0 0.05 14 Max - 22 28 1 0.1 - Unit V mA dB dB % dB Electrical Characteristics (Cont'd): (VCC = 12V, TA = +25C, NB 0dB refers to 580mVrms Dolby level at Pin3 unless otherwise specified) Parameter Encode Characteristics (Input to Pin5) Test Conditions 1.3kHz, -20dB 2.5kHz, -20dB 3.0kHz, -30dB 5.0kHz, -30dB 10kHz, 0dB 10kHz, -40dB 14kHz, -30dB Back-to-Back Frequency Response Input Resistance With Standard Dolby B-Type Processor Pin5 Pin2 Output Resistance Pin6 Pin3 Pin7 Min -17.2 -17.4 -22.7 -23.3 -1.0 -31.1 -25.4 -1.5 45 4.3 1.8 - - Typ -15.7 -15.9 -21.2 -21.8 0.5 -29.6 -23.9 0 65 5.6 2.4 80 80 Max .14.2 -14.4 -19.7 -20.3 2.0 -28.1 -22.4 1.5 85 6.9 3.0 120 120 Unit dB dB dB dB dB dB dB dB k k k k k Pin Connection Diagram Variable Impedance Input 1 Amp B Input 2 Amp B Output 3 Bias 4 Amp A Input 5 Amp A Output 6 Amp S Output 7 Decoupling 8 16 9 16 VCC 15 Variable Impedance Control 14 Rectifier Output 13 Rectifier Bias 12 Rectifier Input 11 Amp D Output 10 Amp D Feedback Decoupling 9 GND .260 (6.6) Max 1 8 .850 (21.6 .180 (4.0) .100 (2.54) |
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