AD6620SSLASHPCB datasheet(7/44 Pages) AD

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AD6620

–7–

REV. A

TIMING DIAGRAMS

CLK, INPUTS, PARALLEL OUTPUTS

RESET with PAR/SER = “1” establishes Parallel Outputs active.

tCLKH

tCLKL

tCLK

CLK

Figure 3. CLK Timing Requirements

CLK

IN[15:0]

EXP[2:0]

A/B

tSI

tHI

DATA

Figure 4. Input Data Timing Requirements

CLK

OUT[15:0]

VALID OUTPUT DATA

DVOUT

I/QOUT

tDPR

tDPF

Figure 5. Parallel Output Switching Characteristics

SYNC PULSES: SLAVE OR MASTER

tSY

tHY

CLK

SYNC NCO

SYNC CIC

SYNC RCF

NOTE:

IN THE SLAVE MODE WITH SINGLE CHANNEL OPERATION, THE WIDTH

OF THE SYNC_NCO SHOULD BE ONE SAMPLE CLOCK CYCLE. IN DUAL

CHANNEL MODE, THE PULSEWIDTH SHOULD BE TWO SAMPLE CLOCK

CYCLES. IF A PULSE LONGER THAN SPECIFIED IS USED, THE NCO WILL

BE INHIBITED AND NOT INCREMENT PROPERLY.

Figure 6. SYNC Slave Timing Requirements

CLK

tCHP

tCPL

tCS

tCH

IN[15:0]

E[2:0]

A/B

N+1

tCLK

Figure 7. SYNC Master Delay

tRESL

RESET

Figure 8. Reset Timing Requirements

AD6620S/PCB 数据表(PDF) 7 Page - Analog Devices

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