WM2630 Ver la hoja de datos (PDF) - Wolfson Microelectronics plc

Número de pieza

componentes Descripción

Fabricante

WM2630

Octal 12-bit, Serial Input, Voltage Output DAC with Internal Reference

Wolfson Microelectronics plc 

WM2630

SERIAL INTERFACE

Production Data

SCLK

DIN

X1

tSUD

X

D15

DOUT

FS

(µC MODE)

FS

(DSP MODE)

X

D15 *

tWHFS tSUFSCLK

tWLFS

tWL tWH

2

tHD

D14

3

D13

4

2

D14 *

D13 *

D12 *

* DIN data from previous word

(delayed by 16 clock cycles)

No high to low transitions

16

X

D1

D1 *

D0

X

D0 *

X

tSUC16-FS

Figure 1 Timing Diagram

SYMBOL

tSUFSCLK

tC16-FS

tWLOADB

tWH

tWL

tSUD

tHD

tWHFS

tWLFS

ts

TEST

CONDITIONS

Setup time, FS pin low before first falling edge of SCLK

Setup time, 16th falling clock edge after FS low to rising edge of FS (only

used in microcontroller mode)

Pulse duration, LOADB low

Pulse duration, SCLK high

Pulse duration, SCLK low

Setup time, data ready before SCLK falling edge

Hold time, data held valid after SCLK falling edge

Pulse duration, FS high

Pulse duration, FS low

DAC Output settling time

MIN

TYP MAX UNIT

8

ns

10

ns

10

ns

16

ns

16

ns

8

ns

5

ns

10

ns

10

ns

see Dynamic DAC Specifications

WOLFSON MICROELECTRONICS LTD

PD Rev 1.1 February 2001

6

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