LTC1404 View Datasheet(PDF) - Linear Technology

Part Name

Description

MFG CO.

LTC1404

Complete SO-8, 12-Bit, 600ksps ADC with Shutdown

Linear Technology 

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LTC1404

TYPICAL APPLICATIONS

LTC1404 Interface to the ADSP2181’s SPORT0 (Frame Sync is Generated from RFS0)

9.6MHz

5V

EXTERNAL CLOCK

1

VCC

CLK 6

+

10µF

0.1µF

UNIPOLAR

INPUT

2

3

AIN

CONV

LTC1404

VREF

DOUT

7

5

+

10µF

0.1µF VSS

8

GND

4

ADSP2181

SCLKO

RFSO

DR0

1404 TA05a

Logic Analyzer Waveforms Show 1.67µs Throughput Rate (Input Voltage = 1.604V, Output Code = 0110 0100 0100 = 160410)

NOTE: WITHOUT THE EXTERNAL CLOCKING SIGNAL, THE ADSP2181 SCLK0 CAN BE PROGRAMMED TO RUN AT 8.3MHz

1404 TA05b

Data from the LTC1404 (Normal Mode)

X RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

XX

1404 TA05c

Data Stored in the ADSP2181’s Memory (Normal Mode, SLEN = D)

0 0 0 RDY D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0

1404 TA05d

20

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