PA3112

PA3112 UTC | Alldatasheet

Document overview

• Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
• PDF pages: 8

Technical content

UNISONIC TECHNOLOGIES CO., LTD PA3112 CMOS IC www.unisonic.com.tw 1 of 8 Copyright © 2008 Unisonic Technologies Co., Ltd QW-R502-100,B DUAL 150mW AUDIO POWER AMPLIFIER „ DESCRIPTION The UTC PA3112 is a dual audio power amplifier with differential inputs capable of delivering typically 150mW per channel of continuous average power to an 16 Ω load with less than 0.1% THD+N using a 5V power supply. The unity-gain stable UTC PA3112 can be configured by external gain-setting resistors. The UTC PA3112 features an externally controlled, low-power consumption shutdown mode. The UTC PA3112 exhibit a low quiescent current of typically 1. 5mA, allowing usage in portable applications. „ FEATURES * Operating voltage range VDD=2.5V~5.5V * Output power: -150mW @5V into 16 Ω * Differential inputs * Shutdown mode available * Low current consumption:3mA max * click and pop reduction circuitry * Unity-gain stable * Thermal and over-current protection MSOP-10 Lead-free: PA3112L Halogen-free: PA3112G „ ORDERING INFORMATION Ordering Number Normal Lead Free Halogen Free Package Packing PA3112-SM2-R PA3112L-SM2-R PA3112G-SM2-R MSOP-10 Tape Reel PA3112-SM2-T PA3112L-SM2-T PA3112G-SM2-T MSOP-10 Tube

UNISONIC TECHNOLOGIES CO., LTD 2 of 8 www.unisonic.com.tw Q W - R 5 0 2 - 1 0 0 , B „ PIN CONFIGURATION „ PIN DESCRIPTION PIN NO PIN NAME I/O DESCRIPTION 4 BYPASS I Connect to internal voltage divider. For best performance, a 0.1 μF ~ 1 μF low ESR capacitor used.

5 GND I Ground

2 IN1- I Channel 1 negative input. 3 IN1+ I Channel 1 positive input. 8 IN2- I Channel 2 negative input. 7 IN2+ I Channel 2 positive input. 6 SHUTDOWN I Low quiescent current mode enable. High active. 10 V DD I Supply voltage. 1 V OUT1 O Channel 1 audio output. 9 V OUT2 O Channel 2 audio output.

UNISONIC TECHNOLOGIES CO., LTD 3 of 8 www.unisonic.com.tw Q W - R 5 0 2 - 1 0 0 , B „ ABSOLUTE MAXIMUM RATINGS PARAMETER SYMBOL RATINGS UNIT Supply Voltage V DD 6 V Input Voltage V IN -0.3~V DD~+0.3 V Continuous Total Power Dissipation internally limited Operating Junction Temperature T J -40 ~ +150 ℃ Storage Temperature T STG -65 ~ +150 ℃ Note: Absolute maximum ratings are those values be yond which the device could be permanently damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied. „ RECOMMENDED OPERATING CONDITIONS PARAMETER SYMBOL MIN TYP MAX UNIT Supply Voltage V DD 2.5 5.5 V High-level Input Voltage V IH, (SHUTDOWN) 0.6×V DD V Low-level Input Voltage V IL, (SHUTDOWN) 0.25×V DD V „ ELECTRICAL CHARACTERISTICS (TA = 25℃) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT DC ELECTRICAL CHARACTERISTICS Output Offset Voltage VO(OFF) AV = 2 V/V, 15 mV VDD = 3.2 V ~ 3.4 V 83 Power Supply Rejection Ratio PSRR VDD = 4.9 V ~ 5.1 V 76 dB Supply Current I DD SHUTDOWN = 0 V, VDD = 2.5 ~ 5.5 V 1.5 3 mA Supply Current in SHUTDOWN Mode IDD(SD) SHUTDOWN = V DD 10 50 μA Input Impedance Z IN V DD = 2.5 ~ 5.5 V >1 M Ω AC OPERATING CHARACTERISTICS (VDD = 3.3V, RL = 16Ω) Output Power (Each Channel) P OUT THD 0.1%, f = 1 kHz 60 mW Total Harmonic Distortion + Noise THD+N P OUT = 40 mW, 20 - 20 kHz 0.4% Maximum Output Power BW B OM G = 10, THD < 5% >20 KHz Phase Margin Open loop 96° Supply Ripple Rejection Ratio RR f = 1 kHz 71 dB Channel/Channel Output Separation f = 1 kHz 89 dB Signal-to-Noise Ratio SNR P OUT = 50 mW, AV = 1 100 dB Noise Output Voltage eN A V = 1 11 μV(rms) AC OPERATING CHARACTERISTICS (VDD = 5V, RL = 16Ω) Output Power (each channel) P OUT THD ≤0.1%, f = 1 kHz 150 mW Total Harmonic Distortion + Noise THD+N P OUT = 100 mW, 20 - 20 kHz 0.6% Maximum Output Power BW B OM G = 10, THD < 5% >20 KHz Phase Margin Open loop 96° Supply Ripple Rejection Ratio RR f = 1 kHz 61 dB Channel/Channel Output Separation f = 1 kHz 90 dB Signal-to-Noise Ratio SNR P OUT = 100 mW, AV = 1 100 dB Noise Output Voltage eN A V = 1 11.7 μV(rms)

UNISONIC TECHNOLOGIES CO., LTD 4 of 8 www.unisonic.com.tw Q W - R 5 0 2 - 1 0 0 , B „ ELECTRICAL CHARACTERISTICS(Cont.) PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT AC OPERATING CHARACTERISTICS (VDD = 3.3V, RL = 32Ω) Output Power (Each Channel) P OUT THD ≤ 0.1%, f = 1 kHz 40 mW Total Harmonic Distortion + Noise THD+N P OUT = 30 mW, 20 - 20 kHz 0.4% Maximum Output Power BW B OM A V = 10, THD < 2% >20 KHz Phase Margin Open loop 96° Supply Ripple Rejection Ratio RR f = 1 kHz 71 dB Channel/Channel Output Separation f = 1 kHz 95 dB Signal-to-Noise Ratio SNR P OUT = 40 mW, AV = 1 100 dB Noise Output Voltage eN A V = 1 11 μV(rms) AC OPERATING CHARACTERISTICS (VDD = 5V, RL = 32Ω) Output Power (Each Channel) P OUT THD ≤ 0.1%, f = 1 kHz 90 mW Total Harmonic Distortion + Noise THD+N P OUT = 60 mW, 20 - 20 kHz 0.4% Maximum Output Power BW B OM A V = 10, THD < 2% >20 KHz Phase Margin Open loop 97° Supply Ripple Rejection Ratio RR f = 1 kHz 61 dB Channel/Channel Output Separation f = 1 kHz 98 dB Signal-to-Noise Ratio SNR P OUT = 90 mW, AV = 1 100 dB Noise Output Voltage eN A V = 1 11.7 μV(rms)

UNISONIC TECHNOLOGIES CO., LTD 5 of 8 www.unisonic.com.tw Q W - R 5 0 2 - 1 0 0 , B „ TYPICAL APPLICATION CIRCUIT