参数资料
型号: ISL5629
厂商: Intersil Corporation
英文描述: Dual 8-bit, +3.3V, 130/210+MSPS, High Speed D/A Converter(双路8位, +3.3V, 130/210+MSPS, 高速D/A转换器)
中文描述: 双8位,3.3伏,二百十分之一百三十○MSPS的高速D / A转换器(双路8位,3.3伏,二百一分之一百三十〇 MSPS的,高速的D / A转换器)
文件页数: 11/12页
文件大小: 378K
代理商: ISL5629
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
ISL5629
R
LOAD
FIGURE 6. OUTPUT LOADING FOR DATASHEET
MEASUREMENTS
OUTA
OUTB
V
OUT
= (2 x OUTA x R
EQ
)V
1:1
L
OAD 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
ISL5629
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
ISL5629
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