THS5661A_15 Datasheet, PDF (17/34 Pages) Texas Instruments – DIGITAL-TO-ANALOG CONVERTER

THS5661A
12ĆBIT, 125 MSPS, CommsDAC
DIGITALĆTOĆANALOG CONVERTER
SLAS247B − NOVEMBER 1999 REVISED SEPTEMBER 2002
APPLICATION INFORMATION
D[11:0]
DAC
Output
(IOUT1 or
IOUT2)
CLK
Valid Data
tsu(D)
50%
th(D)
tpd
ts(DAC)
0.1%
50% ^90%
10%
0.1%
tr(IOUT)
td(D)
1/fCLK
50%
50%
50%
50%
50%
tw(LPH)
Figure 29. Timing Diagram
Table 1. Input Interface Modes
FUNCTION/MODE
Input code format
MODE 0
MODE PIN CONNECTED TO
DGND
Binary
MODE 1
MODE PIN CONNECTED TO
DVDD
Twos complement
DVDD
External
Digital in
Internal
Digital in
Figure 30. Digital Equivalent Input
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