ESMT AD8356A User Manual

ESMT AD8356A

2.1-Channel Digital Audio Amplifier with Headphone Driver

Features

z 16/18/20/24-bit input with I2S, Left-alignment

and Right-alignment data format

z PSNR & DR(A-weighting)

Loudspeaker: 93dB (PSNR), 98dB (DR)
Headphone: 87dB (PSNR), 91dB (DR)

z Multiple sampling frequencies (Fs)

32kHz / 44.1kHz / 48kHz and
64kHz / 88.2kHz / 96kHz

z System clock = 64x,128x,192x,256x,384x,

512x, 576x, 768x, 1024x Fs

64x~1024x Fs for 32kHz / 44.1kHz / 48kHz

64x~512x Fs for 64kHz / 88.2kHz / 96kHz

z Supply voltage

3.0~12V for loudspeaker driver

3.0~3.3V for others

z Loudspeaker output power ( @10% THD+N)

2×8.7W(Full,8Ω)+16.7W(Full, 4Ω) for 2.1-channel
2×4.3W(Half,4Ω)+16.7W(Full, 4Ω) for 2.1-channel
2×8.7W(Full,8Ω) for stereo
2×4.3W(Half,4Ω) for stereo
2×16.7W(Full, 4Ω) for stereo

z Headphone power

34mW into 32Ω@1kHz and 1% THD+N
65mW into 16Ω@1kHz and 1% THD+N
110mW into 8Ω@1kHz and 1% THD+N
200mW into 4Ω@1kHz and 1% THD+N

z Sound processing including：

Bass (+18dB~-12dB, 3dB frequency is 250Hz),
Treble (+18dB~-12dB, 3dB frequency is 7kHz),
5 bands parametric EQ,
Volume control (+24dB~-103dB, 1dB/step) and

Dynamic range control

z Anti-pop design
z Over-temperature protection
z Under-voltage shutdown
z Short-circuit protection

2

z I

C control interface

Applications

z CD and DVD
z TV audio
z Car audio
z Boom-box
z MP3 docking systems
z Portable / Handheld
z Powered speaker
z Wireless audio
z USB speaker

Description

This is a 2.1-channel fully digital audio amplifier with
output power which can deliver up to 2×8.7W to 8Ω
load for L,R channel and 16.7W to 4Ω load for

sub-woofer channel simultaneously with 12V supply

voltage. Using I

provides sound processing includes Volume, Bass,

Treble, EQ, Mixing and Dynamic Range Control (DRC).

Users can use one AD8356A for stereo or 2.1-channel,

two for 5.1-channel and three for 7.1-channel,

respectively.

2

C digital control interface, AD8356A

ORDERING INFORMATION

Product Number Package Comments

AD8356A-KG 7x7 48L QFN Pb-free

AD8356A-LEG 7x7 48L E-LQFP Pb-free

Elite Semiconductor Memory Technology Inc. Publication Date: May. 2007

Revision: 1.3 1/33

ESMT AD8356A

Pin Assignment

MCLK

PLLGND

PLLVDD

CLK_OUT

DVDD

MO

DGND

M1

SDATA0
SDATA1
SDATA2

LRCIN

1

2

3

4

5
6

7

8

9

10

11

12

36

35

34

33

32
31

30

29

28

27

26

25

Pin Description

PIN NAME

1 MCLK I Master clock input Schmitt trigger TTL input buffer

2 PLLGND P Ground for PLL

3 PLLVDD P Supply for PLL (Note1)

TYPE

DESCRIPTION CHARACTERISTICS

HPL
HPR
AGND
AVDD
PWMSA
DEF
SDA
SCL
SA1
SA0
ERROR
PD

4 CLK_OUT O PLL output TTL output buffer

5 DVDD P Digital Power (Note1)

6 M0 I Mode selection 0 Schmitt trigger TTL input buffer

7 DGND P Digital Ground

8 M1 I Mode selection 1 Schmitt trigger TTL input buffer

9 SDATA0 I Serial audio data input 0 Schmitt trigger TTL input buffer

10 SDATA1 I Serial audio data input 1 Schmitt trigger TTL input buffer

11 SDATA2 I Serial audio data input 2 Schmitt trigger TTL input buffer

12 LRCIN I Left/Right clock input (Fs) Schmitt trigger TTL input buffer

13 BCLK I Bit clock input (64Fs) Schmitt trigger TTL input buffer

14 VDDSLB P Supply for subwoofer-left channel B (Note2)

15 SLB O Subwoofer-left channel output (-)

16 GNDSL P Ground for subwoofer-left channel

17 SLA O Subwoofer-left channel output (+)

18 VDDSLA P Supply for subwoofer-left channel A (Note2)

19 VDDSRA P Supply for subwoofer-right channel A (Note2)

Elite Semiconductor Memory Technology Inc. Publication Date: May. 2007

Revision: 1.3 2/33