User's Manual
SAM-200-TR Steaming Audio Module 4 Ver. 0.12j 12/22/2009
PRELIMINARY USER MANUAL SUBJECT TO CHANGE WITHOUT NOTICE
Copyright © 2009 Aerielle, LLC All Rights Reserved.
MAIN CONNECTOR PINOUT
The module’s main connector is a dual-row pin header located on the bottom of the
board, with two rows of 17 pins spaced on a 0.050” grid.
No.
Name
Tx Rx
Xcvr
I/O Description
1
VCC
T R X
PWR
+4 to 9V power supply input
2
GND
T R X
PWR
Ground connection
3
L_IN
T X
I
Audio
i
nput
,
headphone
-
level
l
eft
4
R_IN
T X
I
Audio
i
nput
,
headphone
-
level,
r
ight
5
LINE_L_IN
T X
I
Audio input, line
-
level, left (balanced + L)
6
LINE
_L_GND
T X
I
Audio input, line
-
level gnd, left, (balanced
–
L)
7
LINE_R_IN
T X
I
Audio Input, line
-
level, right (balanced + R)
8
LINE_R_GND
T X
I
Audio input,
line
-
level gnd, right (balanced
–
R)
9
GND
T R X
PWR
Ground connection
10
GND
T R X
PWR
Groun
d connection
1
1
L_
OUT
R
O
Audio
o
utput
,
headphone,
l
eft
1
2
R_
OUT
R
O
Audio
o
utput
,
headphone,
r
ight
1
3
LINE_L_OUT
R
O
Audio output,
line
-
level,
left
(balanced + L)
1
4
LINE_L_GND
R
O
Audio output, line
-
level, left, gnd (balanced
–
L)
1
5
LINE_R_OUT
R
O
Audio output, line
-
level, right (balanced + R)
16
LINE_R_OUT
R
O
Audio output, line
-
level, right, gnd (balanced
-
R)
17
GND
T R X
PWR
Ground connection
18
GND
T R X
PWR
Ground connection
19
IN_SEL
T R X
I
Audio input select line (0 = headphone, 1 = lin
e/bal)
20
OUT_SEL
T R X
I
Audio output select line (0 = headphone, 1 = line/bal)
21
TX_RX
X
I
Tx/Rx select: 1 = Rx, 0 = Tx (N/U on Tx and Rx models)
2
2
CH0
T R X
I
Channel select bit 0
2
3
CH1
T R X
I
Channel select bit 1
2
4
CH2
T R X
I
Channel select
bit 2
2
5
CHSEQ
T R X
I
Sequence the channel sel. on each negative transition
2
6
CHSEL
R X
I
Select channel range: 1 = Consumer, 0 = Professional
2
7
VOLUP
R X
I
Volume up: inc. volume one step each negative transition
2
8
VOLDN
R X
I
Volume dn: dec. volu
me one step each negative transition
29
MUTE
R X
I
Mute the output volume when grounded
30
GND
T R X
PWR
Ground connection
31
I2C_CLK
T R X
I
I2C serial interface clock line (extended interface)
32
I2C_DATA
T R X
I/O
I2C serial interface data line (ext
ended interface)
3
3
TEST
T R X
I
Reserved.
34
RESET
T R X
I
Reserved