ad62550a Elite Semiconductor Memory Technology Inc., ad62550a Datasheet
ad62550a
Manufacturer Part Number
ad62550a
Description
Class-d Audio Power Amplifier With Interface
Manufacturer
Elite Semiconductor Memory Technology Inc.
Datasheet
1.AD62550A.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
+6dB enhancement(Theater 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
Sampling frequencies(Fs)：48kHz
Class-D Audio Power Amplifier with USB / I
2
S input and I
2
S output interface of
Description
amplifier with USB/I
power supplied from the USB port, AD62550A 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
I
external audio sources to use the class D amplifier
to share the speakers. The I
other
AD8356A/AD8256A) to be controlled by AD62550A.
2
S output port. The I
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)
AD62550A is a single chip of Class-D audio
high
performance
Publication Date: Apr. 2007
Revision: 1.3
2
S interface. When using the
2
2
S input port allows other
S Interface
AD62550A
2
audio
S output port allows
2
S input port and
device
1/14
(i.e.
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ad62550a Summary of contents
Page 1
... AD62550A is a single chip of Class-D audio 2 amplifier with USB/I S interface. When using the power supplied from the USB port, AD62550A can drive a pair speakers due to the built-in, high efficiency and high performance class D amplifiers. The device also has ...
Page 2
... Left channel output GNDL P Ground for left channel Elite Semiconductor Memory Technology Inc. Description 2 C’s SDA of Master mode 2 C’s SCL of master mode AD62550A Characteristics Schmitt trigger TTL input buffer Schmitt trigger TTL input buffer Publication Date: Apr. 2007 2/14 Revision: 1.3 ...
Page 3
... O ERROR 32 I RESET Note1: Must be strapped resistor 1MΩ to 3.3V(REGO) or GND. BCLK, LRCIN and PDO must be strapped to GND. SDATAO is strapped to GND by 1MΩ when AD62550A’s volume/mute is controlled by external button, otherwise strapped to 3.3V when AD62550A is I LOW. Absolute Maximum Ratings Symbol VDD VDDL(R) ...