DS1882Z-050+TR datasheet(3/15 Pages) MAXIM

Part #	DS1882Z-050+TR

Description	Dual Log Audio Digital Potentiometer

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Manufacturer	MAXIM [Maxim Integrated Products]

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Dual Log Audio Digital Potentiometer

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3

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

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

µs

Hold Time (Repeated) START Condition

tHD:STA

0.6

µs

Low Period of SCL

tLOW

1.3

µs

High Period of SCL

tHIGH

0.6

µs

Data Hold Time

tHD:DAT

0

0.9

µs

Data Setup Time

tSU:DAT

200

ns

START Setup Time

tSU:STA

0.6

µs

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

µs

SDA and SCL Capacitive Loading

CB

(Note 10)

400

pF

EEPROM Write Time

tW

(Note 11)

5

10

ms

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

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

End-to-End Resistance

REE

+25°C45

k

Ω

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

Ω

Absolute Attenuation Tolerance

(Note 7)

-0.5

+0.5

dB

Mute Position Attenuation

100

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

µVRMS

Crosstalk

1kHz, grounded input, tap = -6dB

-120

dB

THD+N

1kHz, tap = -6dB, CL = 10pF

(Note 8)

0.005

%

Zero-Crossing Detection

tZCD

38

50

ms

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