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U4050B-AFL Datasheet(PDF) 4 Page - TEMIC Semiconductors |
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U4050B-AFL Datasheet(HTML) 4 Page - TEMIC Semiconductors |
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4 / 18 page  U4050B Rev. A2, 05-Mar-98 4 (18) Absolute Maximum Ratings Parameters Symbol Value Unit Line current IL 140 mA Line voltage VL 15 V Junction temperature Tj 150 °C Ambient temperature Tamb –25 to +75 °C Storage temperature Tstg –55 to +150 °C Total power dissipation (Tamb = 60°C, SO28) Ptot 750 mW Thermal Resistance Parameters Symbol Value Unit Junction ambient SO28 RthJA 120 K/W Electrical Characteristics Test conditions unless otherwise specified: f = 1 kHz, 0 dBm = 775 Vrms, IM = 0.3 mA, ID = 2 mA, RC = 130 kΩ, Tamb = 25°C, RGSA = 560 kΩ, ZH = ZM = 68 nF, Pin AGA open Parameters Test Conditions / Pins Symbol Min. Typ. Max. Unit DC characteristics see figure 4 IL = 2 mA VL 1.9 V DC oltage drop IL = 15 mA VL 4.8 5.2 5.6 V DC voltage drop over circuit IL = 19 mA VL 5.4 V over circuit IL = 30 mA VL 6.0 V IL = 100 mA VL 9.5 V Transmission amplifier see figures 5 and 11 Adjustment range of transmit gain IL = 15 mA GS 40 48 56 dB Transmitting amplification IL = 15 mA GS 47.75 48.25 48.75 dB Frequency response IL w 15 A, CL = 4.7 nF f = 300 to 3400 Hz DGS "0.5 dB Gain change with current Pin AGA open IL = 15 to 100 mA DGS "0.5 dB Gain deviation Tamb = –10 to +60°C IL = 15 mA DGS "0.5 dB CMRR of microphone amplifier CMRR 60 80 dB Input resistance of MIC amplifier Ri 45 60 80 k Ω Distortion at line IL > 15 mA VL = 775 mV2rms ds 2 % Maximum output voltage IL > 19 mA d < 5% Vmic = 10 m V1max 1.8 3 4.2 dBm Noise at line psophometrically weighted IL > 15 mA GS = 48 dB no –80 –72 dBmp Anticlipping attack time Vmic = 20 mV C = 470 nF 0.5 ms Release time Each 3 dB overdrive 9 ms |
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