3541

3541 UTC | Alldatasheet

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Technical content

UTC UNISONIC TECHNOLOGIES CO., LTD. 1 www.unisonic.com.tw QW-R502-035,A CLASS AB STEREO HEADPHONE DRIVER WITH MUTE

DESCRIPTION

The UTC 3541 is a class AB stereo headphone driver with Mute feature.

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 %*1 401 *Pb-free plating product number: 3541L PIN DESCRIPTION PIN NO. PIN NAME I/O DESCRIPTION

1 OUT 1 O Output pin for Channel A

2 Mute I Mute control input, high for normal operation

3 IN 1 I Input pin for Channel A

4 V SS Power ground

5 IN 2 I Input pin for Channel B

6 BIAS I Right channel bias input pin

7 OUT 2 O Output pin for Channel B

8 V DD Power supply input

A B MUTE 0dB 0dB OUT 1 BIAS Mute IN 1 V SS VDD OUT 2 BIAS IN 2 587 6 23 4

UTC UNISONIC TECHNOLOGIES CO., LTD. 2 www.unisonic.com.tw QW-R502-035,A ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V DD 7 V Electrostatic Discharge V ESD -3000 ~ 3000 * 1 V Output Short-circuit Duration (Ta=25Ċ, Ptot=1W) tsc(o) 20 S Operating Ambient Temperature range T a -40 ~ 85 Ċ Maximum Junction Temperature T j 150 Ċ Storage Temperature Range T stg -65 ~ 150 Ċ Soldering Temperature (10 seconds) T solder 260 Ċ *1. Human body model: C=100pF, R=1500Ω, 3 positive pulses plus 3 negative pulses. THERMAL CHARACTERISTICS PARAMETER SYMBOL RATINGS UNIT DIP-8 109 Thermal Resistance from Junction to Ambient in Free Air SOP-8 θ JA 210 K/W DIP-8 45 Thermal Resistance from Junction to Case SOP-8 θJC 40 K/W

ELECTRICAL CHARACTERISTICS

(VIN=0dBV, VCC=5V, Ta=25Ċ, f=1kHz, RL=32Ω, unless otherwise noted.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT Supply Voltage V DD 3.0 5.0 6.0 V Mute Terminal Voltage V TM 0.3 0.7 1.6 V Quiescent Current I Q V IN = 0Vrms 3.5 5 mA Mute Current I mute 200 µA Voltage Gain G VCL V IN = 1Vrms, f =1kHz, RL=32Ω -2 0 2 dB Differential Channel Voltage Gain ∆GVCL -0.5 0 0.5 dB Total Harmonic Channel Distortion Factor THD BW<120 kHz 0.03 0.1 % Rated Output Power 1 P O1 R L=32Ω, THD+N = 0.1%, BW<120 kHz 50 55 mW Rated Output Power 2 P O2 R L=16Ω, THD+N = 0.1%, BW<120 kHz 105 110 mW Output Noise Voltage V NO BW= 20 ~ 20 kHz, V IN = 0Vrms -93 -85 dBv Channel Separation CS f =1 kHz -90 -92.5 dB Mute Attenuation ATT V IN = 1Vrms, f =1 kHz, Mute=L 65 70 dB Ripple Rejection RR F RR =100Hz, VRR = -20dBV 50 60 dB

UTC UNISONIC TECHNOLOGIES CO., LTD. 3 www.unisonic.com.tw QW-R502-035,A TEST AND APPLICATION CIRCUIT 1µ F + A + B 1µ F 1µ F 220µ F 100µ F 220µ FOUT 1MuteIN 1VSS MUTE 0dB BIAS UTC 3541 IN 2 BIAS OUT 2 VDD VINB 100kΩ VINA VDD 134 7 865 0dB VMUTE H : Speaker Action L : Mute on 10µ F 04 6 8 Quiescent Current, IQ (mA) RL = 32Ȥ MUTE : OFF MUTE : ON 048 Bias DC Voltage, Vbias (V )4 26 1 0 Supply Voltage, VDD (V) Supply Voltage, V DD (V) RL = 32Ȥ

UTC UNISONIC TECHNOLOGIES CO., LTD. 4 www.unisonic.com.tw QW-R502-035,A Voltage Gain, GVC (dB) 10 1k 10k 100k -12 Frequency, f (Hz) Output Voltage, VOUT (dBV) -10 00 . 8 1 . 2 1 . 6 -60 -40 0.4 2 -20 -80 Mute Control Voltage, VTM (V) 100 -30 -50 -70 VDD = 5V VIN = 0dBV f = 1kHz RL = 32Ω -10 VDD = 5V VIN = 0dBV 120k Channel Separation, CS (dB) -20 10 1k 10k -100 100k-120 Frequency, f (Hz) 100 -80 -40 -60 Mute Attenuationt, ATT (dB) -20 10 1k 10k -90 100k-100 Frequency, f (Hz) 100 -80 -40 -60 -10 -30 -50 -70 VDD = 5V RL = 32Ƹ VDD = 5V VIN = 0dBv RL = 32Ƹ 048 26 1 0 Supply Voltage, VDD (V) fRR=100Hz VRR=-20dBv RL=32Ȥ Ripple Rejection, RR (dB) -20 -40 -60 -80 -100 -90 -70 -50 -30 -10

UTC UNISONIC TECHNOLOGIES CO., LTD. 5 www.unisonic.com.tw QW-R502-035,A 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.