參數資料
型號: ISL5627
廠商: Intersil Corporation
英文描述: Dual 8-bit, +3.3V, 260+MSPS, High Speed D/A Converter
中文描述: 雙8位,3.3伏,260 MSPS的,高速D / A轉換
文件頁數: 11/12頁
文件大?。?/td> 468K
代理商: ISL5627
11
Propagation Delay
The converter requires two clock rising edges for data to be
represented at the output. Each rising edge of the clock
captures the present data word and outputs the previous
data. The propagation delay is therefore 1/CLK, plus <2ns of
processing. See Figure 8.
Test Service
Intersil offers customer-specific testing of converters with a
service called Testdrive. To submit a request, fill out the
Testdrive form at www.intersil.com/testdrive. Or, send a
request to the technical support center.
R
DIFF
ISL5627
R
LOAD
FIGURE 6. OUTPUT LOADING FOR DATASHEET
MEASUREMENTS
OUTA
OUTB
V
OUT
= (2 x OUTA x R
EQ
)V
1:1
LOAD SEEN BY THE TRANSFORMER
R
LOAD
REPRESENTS THE
R
EQ
= 0.5 x (R
LOAD
//R
DIFF
)
AT EACH OUTPUT
FIGURE 7. ALTERNATIVE OUTPUT LOADING
ISL5627
OUTA
OUTB
V
OUT
= (2 x OUTA x R
EQ
)V
R
EQ
= 0.5 x (R
LOAD
//R
DIFF
//R
A
), WHERE R
A
= R
B
AT EACH OUTPUT
R
LOAD
R
DIFF
R
A
R
B
LOAD SEEN BY THE TRANSFORMER
R
LOAD
REPRESENTS THE
Timing Diagram
FIGURE 8. PROPAGATION DELAY, SETUP TIME, HOLD TIME AND MINIMUM PULSE WIDTH DIAGRAM
CLK
I
OUT
50%
t
PW1
t
PW2
t
SU
t
HLD
t
SU
t
SU
t
PD
t
HLD
t
HLD
D7-D0
W
0
W
1
W
2
W
3
OUTPUT = W
0
OUTPUT = W
1
t
PD
OUTPUT = W
-1
ISL5627
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