UNISONIC TECHNOLOGIES CO., LTD TF212 JFET CAPACITOR MICROPHONE APPLICATIONS DESCRIPTION The UTC TF212 uses advanced trench technology to provide excellent RDS (ON), low gate charge and operation with low gate voltages. This device is suitable for use in capacitor microphone applications. FEATURES * Suited for use in audio, telephone capacitor microphones. * Good voltage characteristic. * Good transient characteristic. ORDERING INFORMATION Ordering Number TF212G-xx-A3C-R TF212G-xx-AN3-R TF212G-xx-AQ3-R Note: Pin Assignment: S: Source D: Drain Package SOT-113S SOT-523 SOT-723 Pin Assignment 1 2 3 S D G S D G S D G Packing Tape Reel Tape Reel Tape Reel G: Gate MARKING TF212-F4 TF212-F5 www.unisonic.com.tw Copyright © 2016 Unisonic Technologies Co., Ltd 1 of 3 QW-R206-097.D TF212 JFET ABSOLUTE MAXIMUM RATINGS ( TA=25°С, unless otherwise specified ) PARAMETER Gate Drain Voltage Gate Current Drain Current Power Dissipation Junction Temperature Storage Temperature SYMBOL VGDO IG ID PD TJ TSTG RATING -20 10 1 100 150 -55 ~ +150 UNIT V mA mA mW °С °С Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. ELECTRICAL CHARACTERISTICS (TA=25°С, unless otherwise specified) PARAMETER Gate Drain Breakdown Voltage Gate Source Cut off Voltage Drain Current Forward Transfer Admittance Input Capacitance Output Capacitance Voltage Gain Reduced Voltage Characteristic Frequency Characteristic Input Resistance Output Resistance Total Harmonic distortion Output Noise Voltage SYMBOL BVGDO VGS(OFF) IDSS lYFSl CISS CRSS GV △GVV △GVf ZIN ZO THD VNO TEST CONDITIONS IG=-100μA VDS=5V, ID=1μA VDS=5V, VGS=0 VDS=2V, VGS=0, f=1KHz VDS=5V, VGS=0, f=1MHz VDS=5V, VGS=0, f=1MHz VIN=10mV, f=1KHz VIN=10mV,f=1KHz, VCC=4.5V1.5V f=1KHz to 110Hz f=1KHz f=1KHz VIN=30mV, f=1KHz VIN=0 MIN -20 -0.2 140 1 25 TYP MAX UNIT V -0.6 -1.2 V 350 μA 1.2 mS 3.5 pF 0.65 pF -3 dB -1.2 -3.5 dB -1 dB MΩ 700 Ω 1 % -110 dB CLASSIFICATION OF IDSS RANK RANGE F4 140-240 UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw F5 210-350 2 of 3 QW-R206-097.D TF212 JFET TEST CIRCUIT (TA=25°C) VCC=4.5V 1KΩ VCC=1.5V 33μF 15pF + OSC VTVM V THD B A 1KΩ FOR OUTPUT IMPEDANCE UTC assumes no responsibility for equipment failures that result from using products at values that exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other parameters) listed in products specifications of any and all UTC products described or contained herein. UTC products are not designed for use in life support appliances, devices or systems where malfunction of these products can be reasonably expected to result in personal injury. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 3 of 3 QW-R206-097.D