Datasheet > ALDR6138

ALDR6138

更新时间： 2024-10-01 14:55:43

品牌	Logo	应用领域
友顺 - UTC		/
页数	文件大小	规格书
8页	263K
描述
direct headphone driver with adjustable gain

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ALDR6138 数据手册

UNISONIC TECHNOLOGIES CO., LTD

ALDR6138

CMOS IC

DIRECT HEADPHONE DRIVER

WITH ADJUSTABLE GAIN



DESCRIPTION

The UTC ALDR6138 is a pop-free stereo headphone amplifier

with the integrated charge pump generating the negative supply rail

which allows the removal of the output DC-blocking capacitors. The

UTC ALDR6138 provides a clean, pop-free ground-biased audio

signal. The UTC ALDR6138 is capable of driving 25mW into a

32-Ω load with 3.3-V supply voltage. The device has differential

inputs and uses external resistors for flexible gain setting. Gain can

be configured individually for each channel. The device can also be

configured as a second-order low-pass filter and is ideal for

interfacing with PWM audio sources.

The UTC ALDR6138 has built-in active-mute control for

pop-free audio on/off control. The UTC ALDR6138 has an external

under-voltage detector that mutes the output when monitored

voltage drop below set value.

Using the UTC ALDR6138 in audio products can reduce

component count considerably compared to traditional headphone

amplifiers.



FEATURES

* Low THD+N<0.01% at 10mW Into 32ꢀ

* Stereo Direct Headphone Amplifier driver

40 mW Into 32ꢀ With 3.3-V Supply

* Integrated charge pump Generates Negative Supply

Rail

* Adjustable Gain by External Gain-Setting Resistors

* Pop-Free Under-Voltage Protection

* Configurable as a Second-Order Low-Pass Filter

Ideal for PWM Audio Sources

* Short-Circuit Protection

* High SNR, >90dB

* Ground-Referenced Outputs Eliminate

DC-Blocking Capacitors

* Click- and Pop-Reduction Circuitry

* Active Mute Control for Pop-Free Audio On/Off

Control

* Differential Input and Single-Ended Output



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

ALDR6138G-P14-R

ALDR6138L-P14-R

TSSOP-14

Tape Reel

www.unisonic.com.tw

1 of 8

QW-R107-074.E

12 3 4 5 6 7 8

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