DS1882 データシートの表示（PDF） - Maxim Integrated
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DS1882 Datasheet PDF : 15 Pages
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Dual Log Audio Digital Potentiometer
ANALOG POTENTIOMETER CHARACTERISTICS
(VDD = +4.5V to +5.5V, VCC = +4.5V to +7.0V, V- = -4.5V to -7.0V, TA = -40°C to +85°C.)
PARAMETER
End-to-End Resistance
End-to-End Resistance Tolerance
Ratiometric Temperature Coefficient
SYMBOL
REE
+25°C
+25°C
(Note 6)
CONDITIONS
End-to-End Resistance Temperature
Coefficient
Wiper Resistance
Absolute Attenuation Tolerance
Mute Position Attenuation
Step Size Deviation from Nominal
Interchannel Matching
-3dB Cutoff Frequency
(Note 6)
RW
(Note 7)
(Note 7)
(Note 7)
10pF load
Output Noise
20Hz to 20kHz, grounded input,
tap = -6dB
Crosstalk
1kHz, grounded input, tap = -6dB
THD+N
Zero-Crossing Detection
tZCD
1kHz, tap = -6dB, CL = 10pF
(Note 8)
MIN
-20
-0.5
-0.25
-0.5
TYP
45
30
750
160
100
5
2.2
-120
0.005
38
MAX
+20
UNITS
kΩ
%
ppm/°C
ppm/°C
250
+0.5
+0.25
+0.5
Ω
dB
dB
dB
dB
MHz
µVRMS
dB
%
50
ms
I2C CHARACTERISTICS (See Figure 4)
(VDD = +4.5V to +5.5V, VCC = +4.5V to +7.0V, V- = -4.5V to -7.0V, TA = -40°C to +85°C. Timing referenced to VIL(MAX) and VIH(MIN).)
PARAMETER
SCL Clock Frequency
Bus Free Time Between STOP and
START Conditions
SYMBOL
CONDITIONS
fSCL (Note 9)
tBUF
MIN
TYP
MAX UNITS
0
400
kHz
1.3
µs
Hold Time (Repeated) START Condition
Low Period of SCL
High Period of SCL
Data Hold Time
Data Setup Time
START Setup Time
SDA and SCL Rise Time
tHD:STA
tLOW
tHIGH
tHD:DAT
tSU:DAT
tSU:STA
tR
(Note 10)
0.6
1.3
0.6
0
200
0.6
20 +
0.1CB
µs
µs
µs
0.9
µs
ns
µs
300
ns
SDA and SCL Fall Time
STOP Setup Time
SDA and SCL Capacitive Loading
EEPROM Write Time
tF
(Note 10)
tSU:STO
CB
tW
(Note 10)
(Note 11)
20 +
0.1CB
0.6
5
300
ns
µs
400
pF
10
ms
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