Datasheet

DS1882
Dual Log Audio Digital Potentiometer
_____________________________________________________________________ 5
POTENTIOMETER 1 (CONFIGURATON 2)
ATTENUATION vs. SETTING
DS1882 toc04
SETTING (DEC)
ATTENUATION (dB)
302418126
-80.0
-60.0
-40.0
-20.0
0
-100.0
03327211593
END-TO-END RESISTANCE PERCENT
CHANGE FROM +25°C vs. TEMPERATURE
TEMPERATURE (°C)
RESISTANCE % CHANGE (FROM +25°C)
DS1882 toc05
-40-200 20406080
-5.0
-4.5
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
POTENTIOMETER 1
POTENTIOMETER 0
RESISTANCE vs. POWER-UP VOLTAGE
DS1882 toc06
POWER-UP VOLTAGE (V)
RESISTANCE (kΩ)
54321
20
40
60
80
100
0
0
PROGRAMMED
RESISTANCE (6dBh)
MUTE
HIGH IMPEDANCE
RESISTANCE
vs. POWER-DOWN VOLTAGE
DS1882 toc07
POWER-DOWN VOLTAGE (V)
RESISTANCE (kΩ)
54321
20
40
60
80
100
0
0
PROGRAMMED
RESISTANCE (6dBh)
MUTE
HIGH IMPEDANCE
I
CC
vs. ZERO-CROSSING TIMING
DS1882 toc08
TIME (ms)
I
CC
(µA)
100
200
300
400
500
600
700
800
900
1000
0
ZERO-CROSSING
TIMEOUT OR ZERO-
CROSSING EVENT
ZERO-CROSSING
DETECTION
ACTIVATED
TYPICAL
TIMEOUT
OF 50ms
CROSSTALK vs. FREQUENCY (-6dB)
FREQUENCY (kHz)
CROSSTALK (dB)
DS1882 toc10
-160
-140
-120
-100
-80
-60
-40
-20
0
0.01 0.10 1.00 10.00 100.00
Typical Operating Characteristics (continued)
(V
DD
= V
CC
= +5.0V, V- = -5.0V, T
A
= +25°C.)
THD+N vs. FREQUENCY (0dB)
DS1882 toc09
FREQUENCY (kHz)
THD+N (%)
10.001.000.10
0.0002
0.0004
0.0006
0.0008
0.0010
0.0012
0.0014
0.0016
0.0018
0
0.01 100.00