Datasheet

DS1882
Dual Log Audio Digital Potentiometer
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is a registered trademark of Dallas Semiconductor Corporation.
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Applications Information
Power-Supply Decoupling
To achieve best results, it is recommended that the
power supplies are decoupled with a 0.01µF or a 0.1µF
capacitor. Use high-quality, ceramic, surface-mount
capacitors, and mount the capacitors as close as pos-
sible to the voltage supplies and GND pins to minimize
lead inductance.
SDA and SCL Pullup Resistors
SDA is an open-collector output on the DS1882 that
requires a pullup resistor to realize high logic levels. A
master using either an open-collector output with a
pullup resistor or a push-pull output driver can be uti-
lized for SCL. Pullup resistor values should be chosen
to ensure that the rise and fall times listed in the AC
Electrical Characteristics table are within specification.
SCL
SDA
GND
V
DD
V
CC
H1
H0
W1
W0
L1
L0
A1
A0
A2
AUDIO
OUT
CE
DECOUPLING
CAPACITOR
DECOUPLING
CAPACITOR
4.7kΩ
4.7kΩ
HOST
µC
AUDIO IN
5V (V
CC
)
5V (V
DD
)
DS1882
-5V (V-)
V-
DECOUPLING
CAPACITOR
Typical Operating Circuit
Package Information
For the latest package outline information, go to
www.maxim-ic.com/DallasPackInfo
.
Chip Topology
TRANSISTOR COUNT: 52,353
SUBSTRATE CONNECTED TO GROUND