SSM2163_15 Datasheet, PDF (6/16 Pages) Analog Devices – Digitally Controlled 8 3 2 Audio Mixer

SSM2163
PIN DESCRIPTION
Pin # Mnemonic
Function
1
DGND
Digital Ground.
2
V_SS
Digital Negative Supply.
3
DATA OUT
Serial data output clocked on positive clock edge. Connect DATA OUT to DATA IN pin to
daisy-chain multiple SSM2163s. Output levels are V_DD to DGND.
4
V_DD
Digital Positive Supply.
5
V_IN1
Audio Signal Input 1.
6
NC (Shield)
Shield Pin. Should be tied to AGND to minimize crosstalk.
7
V_IN3
Audio Signal Input 3.
8
NC (Shield)
Shield Pin. Should be tied to AGND to minimize crosstalk.
OBSOLETE ⁹
V_IN5
10
V_CC
11
V_IN7
12
V_EE
13
ACOM
Audio Signal Input 5.
Analog Positive Supply.
Audio Signal Input 7.
Analog Negative Supply.
Analog Common Voltage. Provides a buffered voltage output halfway between V_CC and V_EE for use
as a pseudo ground in single supply applications.
14
V_OUTL
15
V_OUTR
16
V_IN8
17
AGND
Left Audio Output.
Right Audio Output.
Audio Signal Input 8.
Analog Ground.
18
V_IN6
Audio Signal Input 6.
19
NC (Shield)
Shield Pin. Should be tied to AGND to minimize crosstalk.
20
V_IN4
Audio Signal Input 4.
21
NC (Shield)
Shield Pin. Should be tied to AGND to minimize crosstalk.
22
V_IN2
Audio Signal Input 2.
23
NC (Shield)
Shield Pin. Should be tied to AGND to minimize crosstalk.
24
LD
Load Data.
25
WRITE
Write Data.
26
CLK
Clock.
27
Data In
Serial Data Input. Clocked on positive clock edge.
28
SYSTEM MUTE Mutes all eight input channels thus left and right audio output are muted. System mute does not
change the state of internal latches. All digital data remains intact after system mute is applied.
Logic One: Mutes Output
Logic Zero: Normal Operation
SELECTION
INPUT CHANNEL 1
INPUT CHANNEL 2
INPUT CHANNEL 3
INPUT CHANNEL 4
INPUT CHANNEL 5
INPUT CHANNEL 6
INPUT CHANNEL 7
INPUT CHANNEL 8
MSB
LSB MSB
ADDRESS MODE
ADDRESS
1XX
00 0 0X
1XX
R00 ^{1 0 X}
1XX L _I 0 1 0 0 X
1XX EG 0 1 1 0 X
1XX ^FH 1 0 0 0 X
1XX ^T T 1 0 1 0 X
1XX
11 0 0X
1XX
11 1 0X
LSB
DATA MODE
DATA
DATA
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
OUTPUT SELECT
1 = SELECTED, 0 = NOT SELECTED
INPUT SELECT
X = “DON’T CARE," SHADED AREA IS DATA
1
1
1
1
0
1
1
1
1
1
1
0
1
1
1
1
1
1
ATTENUATION
0dB
–1dB
–2dB
.
.
.
.
–61dB
–62dB
–63dB
Figure 3. Address and Data Decoding Truth Table
–6–
REV. 0