ad6255a Elite Semiconductor Memory Technology Inc., ad6255a Datasheet
ad6255a
Manufacturer Part Number
ad6255a
Description
Class-d Audio Power Amplifier With Interface Recording Function
Manufacturer
Elite Semiconductor Memory Technology Inc.
Datasheet
1.AD6255A.pdf
(3 pages)
Features
Functional Block Diagram
Elite Semiconductor Memory Technology Inc.
Compliant with USB Specification v1.1, and USB
2.0 full speed
Embedded high efficiency, high performance class
D stereo amplifier
Support I
master mode
Sampling frequencies(Fs)：48kHz
+6dB enhancement(Theater function)
Support recording function
Support both bus-powered and self-powered
operation
Supports Win Me//2000/XP and MacOS
True plug-and-play application, no driver is
required for basic USB speaker application
Support volume/mute control with external button
Built-in 5V to 3.3V regulator for internal device
operation
Total efficiency
80% for 8Ω load @ -1dB 1kHz sine wave input
Loudspeaker PSNR & DR (A-weighting)
80dB (PSNR), 78dB (DR) with Bead filter
Class-D Audio Power Amplifier with USB / I
2
S input and I
2
S output interface of
Recording function
Description
amplifier with USB/I
recording function. When using the power supplied
from the USB port, AD6255A can drive a pair of up
to 1W speakers due to the built-in, high efficiency
and high performance class D amplifiers. The
device also has an I
The I
sources to use the class D amplifier to share the
speakers. The I
performance audio device (i.e. AD8356A/AD8256A)
to be controlled by AD6255A.
82dB (PSNR), 78dB (DR) with Chock filter
Anti-pop design
Over-temperature protection
Under-voltage shutdown
Short-circuit detection
12 MHz Crystal Input
32-pin LQFP(Pb free)
AD6255A is a single chip of Class-D audio
2
S input port allows other external audio
2
S output port allows other high
Publication Date: Apr. 2007
Revision: 1.3
2
S input port and I
2
S Interface and
2
S interface and supports
AD6255A
2
S output port.
1/15
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ad6255a Summary of contents
Page 1
... AD6255A is a single chip of Class-D audio amplifier with USB/I recording function. When using the power supplied from the USB port, AD6255A can drive a pair speakers due to the built-in, high efficiency and high performance class D amplifiers. The device also has an I ...
Page 2
... VDDR P Supply for right channel 13 VDDL P Supply for left channel Left channel output Left channel output- O Elite Semiconductor Memory Technology Inc. Description AD6255A Characteristics Schmitt trigger TTL input buffer Schmitt trigger TTL input buffer Publication Date: Apr. 2007 2/15 Revision: 1.3 ...
Page 3
... Supply for Driver Stage T Ambient Operating Temperature a Elite Semiconductor Memory Technology Inc mode Ω to 3.3V(REGO) or GND. BCLK, LRCIN and PDO must be Ω to GND when AD6255A’s volume/mute is Parameter Supply for regulator input Input Voltage Storage Temperature and V DDL (V ) and DVDD/AVDD DDL ...