ESMT
Pin Assignment
AD82550A
Pin Description
Pin
1
2
3
4
5
6
7
8
9
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Name
AGND
HPR
HPL
HP-SPK
DGND
DVDD
BCLK
SDATA
LRCIN
VOLUP
VOLDN
ERROR
RESET
Type
P
O
O
I
P
P
I
I
I
I
I
I
O
I
P
O
O
P
P
O
O
P
I
P
Description
Analog ground
Headphone right channel output
Headphone left channel output
Headphone/loudspeaker switch
Digital ground
Digital supply
Bit clock (64Fs) input
Serial audio data input
Left/right sampling clock (Fs) input
Power-down and mute, low active
Volume up, low active
Volume down, low active
Error output
Reset, low active
Ground for loudspeaker right channel
Loudspeaker right channel output (-)
Loudspeaker right channel output (+)
Supply for loudspeaker right channel
Supply for loudspeaker left channel
Loudspeaker left channel output (+)
Loudspeaker left channel output (-)
Ground for loudspeaker left channel
Master clock (256Fs) input
Analog supply
Characteristics
Schmitt trigger input
with a 380kΩ pull-up resistor (Note 1)
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 (Note1)
Schmitt trigger TTL input buffer (Note1)
Open-drain output
Schmitt trigger TTL input buffer
10 PD/MUTE
GNDR
RB
RA
VDDR
VDDL
LA
LB
GNDL
MCLK
AVDD
Schmitt trigger TTL input buffer
Note1: May become bi-directional with less than 30μA output current when “
RESET
” pin is low.
Elite Semiconductor Memory Technology Inc.
Publication Date
：
Apr. 2007
Revision
：
1.1
2/16
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
