WM2636ID データシートの表示（PDF） - Wolfson Microelectronics plc

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WM2636ID

12-bit Serial Input Voltage Output DAC with Internal Reference

Wolfson Microelectronics plc 

WM2636

PIN CONFIGURATION

DIN 1

SCLK 2

NCS 3

FS 4

8 VDD

7 OUT

6 REF

5 AGND

Production Data

PIN DESCRIPTION

PIN NO

1

2

3

4

5

6

7

8

NAME

DIN

SCLK

NCS

FS

AGND

REF

OUT

VDD

TYPE

Digital input

Digital input

Digital input

Digital input

Supply

Analogue I/O

Analogue output

Supply

DESCRIPTION

Serial data input.

Serial clock input.

Chip select. This pin is active low.

Frame synchronisation for serial input data.

Analogue ground.

Analogue reference voltage input/output.

DAC analogue output

Positive power supply.

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at

or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical

Characteristics at the test conditions specified

ESD Sensitive Device. This device is manufactured on a CMOS process. It is therefore generically susceptible

to damage from excessive static voltages. Proper ESD precautions must be taken during handling and storage

of this device.

CONDITION

Supply voltage, VDD to AGND

Digital input voltage

Reference input voltage

Operating temperature range, TA

Storage temperature

WM2636CD

WM2636ID

Lead temperature 1.6mm (1/16 inch) soldering for 10 seconds

MIN

-0.3V

-0.3V

0°C

-40°C

-65°C

MAX

7V

VDD + 0.3V

VDD + 0.3V

70°C

85°C

150°C

260°C

RECOMMENDED OPERATING CONDITIONS

PARAMETER

SYMBOL

TEST CONDITIONS

MIN

Supply voltage

VDD

2.7

High-level digital input voltage

VIH

VDD = 2.7V to 5.5V

2

Low-level digital input voltage

VIL

VDD = 2.7V to 5.5V

Reference voltage to REF

VREF

See Note

Load resistance

RL

2

Load capacitance

CL

Serial clock rate

FSCLK

Operating free-air temperature

TA

WM2636CD

0

WM2636ID

-40

Note: Reference voltages greater than VDD/2 will cause saturation for large DAC codes.

TYP

MAX

UNIT

5.5

V

V

0.8

V

VDD - 1.5

V

10

kΩ

100

pF

20

MHz

70

°C

85

°C

WOLFSON MICROELECTRONICS LTD

PD Rev 1.0 July 1999

2

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