DS1882
Dual Log Audio Digital Potentiometer
4 _____________________________________________________________________
NV MEMORY CHARACTERISTICS
(V
DD
= +4.5V to +5.5V, V
CC
= +4.5V to +7.0V, V- = -4.5V to -7.0V, T
A
= 0°C to +70°C.)
Note 1: All voltages are referenced to ground.
Note 2: The value of V
DD
should never exceed V
CC
, including during power-ups. V
CC
must be applied before V
DD
.
Note 3: I
DD
is specified with SDA = SCL = CE = V
DD
, resistor pins floating, and digital inputs connected to V
DD
or GND.
Note 4: I
CC
is specified with SDA = SCL = CE = V
DD
, resistor pins floating, and digital inputs connected to V
DD
or GND, after zero-
crossing detection has timed out.
Note 5: The DS1882 will not obstruct the SDA and SCL lines if V
DD
is switched off as long as the voltages applied to these inputs
do not violate their minimum and maximum input voltage levels.
Note 6: Guaranteed by design.
Note 7: Above Position 50, these are typical maximum. Guaranteed by characterization.
Note 8: Load is representative of the input of a low-noise audio amp.
Note 9: Timing shown is for fast-mode (400kHz) operation. This device is also backward-compatible with I
2
C standard-mode timing.
Note 10: C
B
—Total capacitance of one bus line in picofarads.
Note 11: If zero-crossing detection is enabled, the EEPROM write does not begin until the current zero-crossing detection is com-
plete. Otherwise, EEPROM write begins after a STOP condition occurs.
Typical Operating Characteristics
(V
DD
= V
CC
= +5.0V, V- = -5.0V, T
A
= +25°C.)
