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U4082BG-S28-T Datasheet(PDF) 5 Page - Unisonic Technologies |
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U4082BG-S28-T Datasheet(HTML) 5 Page - Unisonic Technologies |
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5 / 13 page  UNISONIC TECHNOLOGIES CO., LTD U4082B LINEAR INTEGRATED CIRCUIT UNISONICTECHNOLOGIESCO.,LTD 5 of 13 www.unisonic.com.tw QW-R108-020.A ELECTRICAL CHARACTERISTICS (TA=25°C, unless otherwise specified) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltages V+ Supply Current ICC VCC=6.5V, CD=0.8V 5.5 8 mA VCC =6.5V, CD=2V 600 800 μA CD Input Resistance RCD VCC =VCD=6.5V 50 90 kΩ CD Input Voltage High VCDH 2 VCC V Low VCDL 0.8 V VB Output Voltage VB VCC =3.5V 1.3 V VCC =5V 1.8 2.1 2.4 VB Output Resistance ROVB IVB=1mA 400 Ω VB Power Supply Rejection Ratio PSRR CVB=220µF, f=1kHz 54 dB Attenuators Receive Attenuator Gain (f=1kHz, VLC=VB) RX Mode, RXI=150mVrms GRX VCC=5V 4 6 8 dB RX Mode, RXI=150mVrms GRX VCC =3.5V 4 6 8 dB Gain Change ΔGRX1 VCC =3.5V vs. VCC =5V -0.5 0 +0.5 dB AGC Gain Change ΔGRX2 VCC =3.5V vs. VCC =5V -25 -15 dB Idle Mode, RXI=150mVrms GRXI -22 -20 -17 dB RX to TX Mode Range ΔGRX3 49 52 54 dB Volume Control Range VCR 27 35 dB RXO DC Voltage VRXO RX Mode VB V ΔRXO DC Voltage ΔVRXO RX to TX Mode +-10 +-150 mV RXO High Voltage VRXOH IOUT=-1mA, RXI=VB+1.5V 3.7 V RXO Low Voltage VRXOL IOUT=+1mA, RXI=VB-1V, Output Measured with Respect to VB -1.5 -1 V RXI Input Resistance RRXI RXI<350mVrs 7 10 14 kΩ Transmit Attenuator Gain (f=1kHz) TX Mode, TXI=150mVrms GTX 4 6 8 dB Idle Mode, TXI=150mVrms GTXI -22 -20 -17 dB TX to Rx Mode Range ΔGTXI 49 52 54 dB TXO DC Voltage VTXO TX VB V ΔTXO DC Voltage ΔVTXO TX to RX Mode +-30 +-150 mV TXO High Voltage VTXOH IOUT=-1mA, TXI=VB+1.5V 3.7 V TXO Low Voltage VTXOL IOUT =+1mA, TXI=VB-1V, Output Measured with Respect to VB -1.5 -1 V TXI Input Resistance RTXI TXI<350mVrs 7 10 14 kΩ Gain Tracking GTR GRX+GTX, @TX, IDIE, RX +-0.1 dB Attenuator Control CT Voltage ( CT-VB) RX Mode VLC=VB 240 mV Idle Mode 0 mV TX Mode -240 mV CT Source Current ICTR (Switching to RX Mode) -85 -60 -40 µA CT Sink Current ICTT (Switching to TX Mode) +40 +60 +85 µA CT Slow Idle Current ICTS 0 µA CT Fast Idle Internal Resistance RFI 1.5 2 3.6 kΩ VLC Input Current IVLC -60 nA Dial Tone Detector Threshold VDT 10 15 20 mV |
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