CLASS AB STEREO HEADPHONE DRIVER

UTC 3541 CLASS AB STEREO HEADPHONE DRIVER WITH MUTE DESCRIPTION The UTC 3541 is a class AB stereo headphone driver with Mute feature. CMOS IC FEATURES * Built-in Mute Function * No Switch ON/OFF pops * Short-circuit protection * Low Power Consumption * Large Output Voltage Swing * High Signal-to-Noise Ratio *Pb-free plating product number: 3541L PIN DESCRIPTION PIN NO. 1 2 3 4 5 6 7 8 PIN NAME OUT 1 Mute IN 1 VSS IN 2 BIAS OUT 2 VDD I/O O I I I I O DESCRIPTION Output pin for Channel A Mute control input, high for normal operation Input pin for Channel A Power ground Inputwww.DataSheet4U.com pin for Channel B Right channel bias input pin Output pin for Channel B Power supply input BLOCK DIAGRAM VDD 8 OUT 2 7 BIAS 6 BIAS B 0dB MUTE A + 0dB + IN 2 5 1 OUT 1 2 Mute 3 IN 1 4 VSS UTC UNISONIC TECHNOLOGIES CO., LTD. 1 QW-R502-035,A www.unisonic.com.tw UTC 3541 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage Electrostatic Discharge Output Short-circuit Duration (Ta=25 , Ptot=1W) CMOS IC UNIT V V S SYMBOL RATINGS VDD 7 VESD -3000 ~ 3000 *1 tsc(o) 20 Operating Ambient Temperature range Ta -40 ~ 85 Maximum Junction Temperature Tj 150 Storage Temperature Range Tstg -65 ~ 150 Soldering Temperature (10 seconds) Tsolder 260 *1. Human body model: C=100pF, R=1500Ω, 3 positive pulses plus 3 negative pulses. THERMAL CHARACTERISTICS PARAMETER Thermal Resistance from Junction to Ambient in Free Air Thermal Resistance from Junction to Case SYMBOL DIP-8 SOP-8 DIP-8 SOP-8 θJA θJC RATINGS 109 210 45 40 UNIT K/W K/W ELECTRICAL CHARACTERISTICS (VIN=0dBV, VCC=5V, Ta=25 , f=1kHz, RL=32Ω, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITIONS Supply Voltage VDD Mute Terminal Voltage VTM Quiescent Current IQ VIN = 0Vrms Mute Current Imute Voltage Gain GVCL VIN = 1Vrms, f =1kHz, RL=32Ω Differential Channel Voltage Gain ∆GVCL BW<120 kHz Total Harmonic Channel Distortion THD Factor Rated Output Power 1 PO1 RL=32Ω, THD+N = 0.1%, BW<120 kHz Rated Output Power 2 PO2 RL=16Ω, THD+N = 0.1%, BW<120 kHz Output Noise Voltage VNO BW= 20 ~ 20 kHz, VIN = 0Vrms Channel Separation CS f =1 kHz Mute Attenuation ATT VIN = 1Vrms, f =1 kHz, Mute=L Ripple Rejection RR FRR =100Hz, VRR = -20dBV MIN 3.0 0.3 TYP 5.0 0.7 3.5 200 0 0 0.03 50 105 -90 65 50 55 110 -93 -92.5 70 60 MAX 6.0 1.6 5 2 0.5 0.1 UNIT V V mA µA dB dB % mW mW dBv dB dB dB -2 -0.5 -85 UTC UNISONIC TECHNOLOGIES CO., LTD. 2 QW-R502-035,A www.unisonic.com.tw UTC 3541 TEST AND APPLICATION CIRCUIT VINB 10µ F 220µ F CMOS IC 1µ F IN 2 5 BIAS 6 BIAS +B 0dB OUT 2 7 VDD 8 UTC 3541 100µ F VDD +A 0dB MUTE 4 VSS IN 1 3 Mute 2 OUT 1 1 220µ F 1µ F 100kΩ VINA VMUTE 1µ F H : Speaker Action L : Mute on 8 Quiescent Current, IQ (mA) 7 6 5 4 3 2 1 0 0 RL = 32 5 RL = 32 Bias DC Voltage, Vbias (V) 8 4 3 2 1 0 MUTE : OFF MUTE : ON 2 4 6 0 2 4 6 8 10 Supply Voltage, V DD (V) Supply Voltage, VDD (V) UTC UNISONIC TECHNOLOGIES CO., LTD. 3 QW-R502-035,A www.unisonic.com.tw UTC 3541 Output Voltage, VOUT (dBV) VDD = 5V 0 VIN = 0dBV -10 f = 1kHz RL = 32Ω -20 -30 -40 -50 -60 -70 -80 0 0.4 0.8 1.2 1.6 2 10 +8 +6 +4 +2 +0 -2 -4 -6 -8 -10 -12 10 100 1k CMOS IC VDD = 5V VIN = 0dBV Voltage Gain, GVC (dB) 10k 100k 120k Mute Control Voltage, VTM (V) Frequency, f (Hz) Channel Separation, CS (dB) Mute Attenuationt, ATT (dB) VDD = 5V -20 RL = 32 -40 -60 -80 -100 -120 10 100 1k 10k 100k +0 +0 -10 -20 -30 -40 -50 -60 -70 -80 -90 -100 VDD = 5V VIN = 0dBv RL = 32 10 100 1k 10k 100k Frequency, f (Hz) Frequency, f (Hz) Ripple Rejection, RR (dB) fRR=100Hz VRR=-20dBv -20 RL=32 -10 -30 -40 -50 -60 -70 -80 -90 0 -100 0 2 4 6 8 10 Supply Voltage, VDD (V) UTC UNISONIC TECHNOLOGIES CO., LTD. 4 QW-R502-035,A www.unisonic.com.tw UTC 3541 CMOS IC 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. UTC UNISONIC TECHNOLOGIES CO., LTD. 5 QW-R502-035,A www.unisonic.com.tw