UNISONIC TECHNOLOGIES CO., LTD UM2750 Preliminary LINEAR INTEGRATED CIRCUIT 4 INPUT/1 OUTPUT STEREO AUDIO SELECTOR DESCRIPTION The UTC UM2750 is a Stereo Audio Selector with 4 Inputs and 1 Output. Based upon the inner OP-AMP Switch technology, the UTC UM2750 features higher Channel Separation, lower Output Noise and lower Distortion than the common Multiplexers or Analogue Switches. The UTC UM2750 can be applied to many kinds of audio devices, such as Car Stereo, TV, Mini music center and so on. FEATURES * Dual Channel for Stereo Use * 4.7~13V Operating Voltage * 4 Input /1 Output Audio Selectors * Bipolar Technology * Low Output Noise: -110dBV typ. * Low Distortion: 0.005% typ. ORDERING INFORMATION Ordering Number Lead Free Halogen Free UM2750L-S16-R UM2750G-S16-R UM2750L-S16-T UM2750G-S16-T www.unisonic.com.tw Copyright © 2012 Unisonic Technologies Co., Ltd Package Packing SOP-16 SOP-16 Tape Reel Tube 1 of 5 QW-R109-031. a UM2750 Preliminary LINEAR INTEGRATED CIRCUIT PIN CONFIGURATION IN1a 1 16 GND CNT1 2 15 OUTa IN2a 3 14 V+ CNT2 4 13 IN3a IN4a 5 12 VREF IN1b 6 11 OUTb IN2b 7 10 (N.C.) IN4b 8 9 IN3b PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PIN NAME IN1a CNT1 IN2a CNT2 IN4a IN1b IN2b IN4b IN3b (N.C.) OUTb VREF IN3a V+ OUTa GND DESCRIPTION Ach Input 1 Select Control 1 Ach Input 2 Select Control 2 Ach Input 4 Bch Input 1 Bch Input 2 Bch Input 4 Bch Input 3 No Connect Bch Output Reference Voltage Ach Input 3 Supply Voltage Ach Output Ground UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw 2 of 5 QW-R109-031. a UM2750 Preliminary LINEAR INTEGRATED CIRCUIT BLOCK DIAGRAM IN1a 1 16 GND CNT1 2 15 OUTa IN2a 3 14 V+ CNT2 4 13 IN3a IN4a 5 12 VREF IN1b 6 11 OUTb IN2b 7 10 (N.C.) IN4b 8 9 IN3b V+ Logic Circuit UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw bias 3 of 5 QW-R109-031. a UM2750 Preliminary LINEAR INTEGRATED CIRCUIT ABSOLUTE MAXIMUM RATING (TA=25°C, unless otherwise specified) PARAMETER SYMBOL RATINGS UNIT Supply Voltage V+ 15 V Power Dissipation PD 300 mW Operating Temperature TOPR -40 ~ +85 °C Storage Temperature TSTR -40 ~ +150 °C 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°C, V+=9V, unless otherwise specified) PARAMETER Operating Voltage Supply Current Reference Voltage Voltage Gain Total Harmonic Distortion SYMBOL V+ ICC VREF GV THD+N TEST CONDITIONS No Signal VIN=1VRMS, f=1kHz VIN=1VRMS, f=1kHz -1 Output Noise Voltage VNO A-Weighted Maximum Output Voltage VOM f=1KHz, THD=1% Cross Talk Channel Separation Switch-ON Voltage Level Switch-OFF Voltage Level CT CS VCH VCL VIN=1VRMS, f=1kHz, A-Weighted VIN=1VRMS, f=1kHz, A-Weighted MIN 4.7 6 2.0 70 70 2.4 TYP 9.0 10 4.5 0 0.005 -110 3 8 2.5 90 90 MAX 13.0 20 1 0.05 -100 10 0.8 UNIT V mA V dB % dBV VRMS dBV VRMS dB dB V V SWITCH CONTROL LOGIC CNT1 L L H H CNT2 L H L H UNISONIC TECHNOLOGIES CO., LTD www.unisonic.com.tw INPUT SELECTOR Ach/Bch IN1 IN2 IN3 IN4 4 of 5 QW-R109-031. a UM2750 Preliminary LINEAR INTEGRATED CIRCUIT TYPICAL APPLICATION CIRCUIT IN1a 10kΩ 1 16 GND 0.1µF CNT1 2 15 4.7µF OUTa 100kΩ 10µF IN2a 3 14 4 13 0.1µF 10kΩ CNT2 10µF IN4a 5 0.1µF 12 V+ 9V 100µF IN3a 0.1µF VREF 10µF IN1b 6 11 OUTb 0.1µF 100kΩ IN2b 7 10 8 9 4.7µF (N.C.) 0.1µF IN4b 0.1µF IN3b 0.1µF 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 5 of 5 QW-R109-031. a