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参数资料
| 型号： | DS1881Z-050+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC DGTL POT NV 2CH 45K 16-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1,000 |
| 接片： | 64 |
| 电阻（欧姆）： | 45k |
| 电路数： | 2 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 16-SOIC |
| 包装： | 带卷 (TR) |
DS1881
Dual NV Audio Taper Digital Potentiometer
_____________________________________________________________________
3
I2C CHARACTERISTICS (See Figure 4)
(VDD = +2.7V to +5.5V, VCC = +4.5V to +5.5V, TA = -40°C to +85°C. Timing referenced to VIL(MAX) and VIH(MIN).)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SCL Clock Frequency
fSCL
(Note 9)
0
400
kHz
Bus Free Time Between STOP and
START Conditions
tBUF
1.3
s
Hold Time (Repeated) START Condition
tHD:STA
0.6
s
Low Period of SCL
tLOW
1.3
s
High Period of SCL
tHIGH
0.6
s
Data Hold Time
tHD:DAT
0
0.9
s
Data Setup Time
tSU:DAT
100
ns
START Setup Time
tSU:STA
0.6
s
SDA and SCL Rise Time
tR
(Note 10)
20 +
0.1CB
300
ns
SDA and SCL Fall Time
tF
(Note 10)
20 +
0.1CB
300
ns
STOP Setup Time
tSU:STO
0.6
s
SDA and SCL Capacitive Loading
CB
(Note 10)
400
pF
EEPROM Write Time
tW
(Note 11)
5
10
ms
ANALOG POTENTIOMETER CHARACTERISTICS
(VDD = +2.7V to +5.5V, VCC = +4.5V to +5.5V, TA = -40°C to +85°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
End-to-End Resistance
REE
+25°C45
k
End-to-End Resistance Tolerance
+25°C
-20
+20
%
Ratiometric Temperature Coefficient
(Note 6)
30
ppm/°C
End-to-End Resistance Temperature
Coefficient
(Note 6)
750
ppm/°C
Wiper Resistance
RW
160
250
Absolute Attenuation Tolerance
(Note 7)
-0.5
+0.5
dB
Mute Position Attenuation
80
dB
Step Size Deviation from Nominal
(Note 7)
-0.25
+0.25
dB
Interchannel Matching
(Note 7)
-0.5
+0.5
dB
-3dB Cutoff Frequency
10pF load
5
MHz
Output Noise
(20Hz to 20kHz, grounded input,
tap = -6dB)
2.2
VRMS
Crosstalk
(1kHz, grounded input, tap = -6dB)
-110
dB
THD+N
1kHz, tap = -6dB, CL = 10pF
(Note 8)
0.005
%
Zero-Crossing Detection
tZCD
38
50
ms
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| DS1882 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Dual Log Audio Digital Potentiometer |
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