AD8256A Elite Semiconductor Memory Technology Inc, AD8256A Datasheet - Page 3

• Manufacturer Part Number: AD8256A
• Description: 2x16W Stereo Digital Audio Amplifier with Headphone Driver
• Manufacturer: Elite Semiconductor Memory Technology Inc

ESMT
Note1：These pins provide the supply for digital PWM controller, headphone drivers, built-in PLL and
Note2：These pins provide the supply for loudspeaker driver stages, which are known as “PVDD”.
Elite Semiconductor Memory Technology Inc.
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
VDDRB2
PLL_Byp
VDDLB2
VDDLA2
VDDLA1
VDDLB1
PWMSA
ERROR
HP-SPK
GNDR2
GNDL2
GNDL1
Re
AGND
protection circuits except for loudspeaker short-circuit protection circuits.
AVDD
SDA
HPR
RA2
RB2
SCL
DEF
HPL
SA0
SA1
LB2
LA2
LA1
LB1
PD
set
O
O
O
O
O
O
O
O
O
O
P
P
P
P
P
P
P
P
P
P
I
I
I
I
I
I
I
I
I
Half-bridge, sub-woofer channel output
Default volume, 0=Mute, 1=Un-Mute
Headphone right channel output
Headphone left channel output
Supply2 for right channel B
Supply2 for left channel B
Supply1 for left channel B
Right channel output2 (+)
Ground2 for right channel
Supply2 for left channel A
Supply1 for left channel A
Right channel output2 (-)
Ground2 for left channel
Ground1 for left channel
Left channel output2 (+)
Left channel output1 (+)
Power down, low active
Left channel output2 (-)
Left channel output1 (-)
Headphone detection
I
I
I
I
2
2
2
2
C serial clock input
C select address 0
C select address 1
Reset, low active
C serial data input
ERROR output
Analog ground
Analog supply
PLL Bypass
Schmitt trigger TTL input buffer with
Schmitt trigger TTL input buffer
Schmitt trigger TTL input buffer
Schmitt trigger TTL input buffer
Schmitt trigger TTL input buffer
Schmitt trigger TTL input buffer
Schmitt trigger TTL input buffer
Schmitt trigger TTL input buffer
Publication Date: May. 2007
Revision: 1.3
Open-drain output
open-drain output
TTL output buffer
(Note2)
(Note1)
(Note2)
(Note2)
(Note2)
(Note2)
AD8256A
3/33