參數(shù)資料
型號: AD9212-65EBZ
廠商: Analog Devices, Inc.
英文描述: Octal, 10-Bit, 40/65 MSPS Serial LVDS 1.8 V A/D Converter
中文描述: 八路,10位,六十五分之四十〇 MSPS的串行LVDS 1.8弗吉尼亞州/ D轉(zhuǎn)換器
文件頁數(shù): 25/56頁
文件大小: 1840K
代理商: AD9212-65EBZ
AD9212
Rev. 0 | Page 25 of 56
500
400
300
200
100
–500
–400
–300
–200
–100
0
–1.0ns
–1.5ns
–0.5ns
0ns
0.5ns
1.0ns
1.5ns
E
EYE: ALL BITS
ULS: 12071/12071
90
50
10
20
30
40
60
70
80
–0
–100ps
–50ps
0ps
50ps
100ps
150ps
T
0
Figure 60. Data Eye for LVDS Outputs in ANSI Mode with Trace Lengths Less
than 24 Inches on Standard FR-4
60
80
90
70
50
40
20
10
100
30
–0
–100ps
100ps
0ps
200ps
T
500
400
300
200
100
–500
–400
–300
–200
–100
0
–1.0ns
–0.5ns
0ns
0.5ns
1.5ns
–1.5ns
1.0ns
E
EYE: ALL BITS
ULS: 12067/12067
0
Figure 61. Data Eye for LVDS Outputs in ANSI Mode with Trace Lengths
Greater than 24 Inches on Standard FR-4
400
300
200
100
–400
–300
–200
–100
0
–0.5ns
0ns
0.5ns
E
EYE: ALL BITS
ULS: 12072/12072
80
50
10
20
30
40
60
70
–0
–100ps
–50ps
0ps
50ps
100ps
150ps
T
–1.0ns
1.5ns
–1.5ns
1.0ns
0
Figure 62. Data Eye for LVDS Outputs in ANSI Mode with 100 Ω Termination
on and Trace Lengths Greater than 24 Inches on Standard FR-4
The format of the output data is offset binary by default. An
example of the output coding format can be found in Table 8.
If it is desired to change the output data format to twos
complement, see the Memory Map section.
Table 8. Digital Output Coding
(VIN+) (VIN), Input
Span = 2 V p-p (V)
1023
+1.00
512
0.00
511
0.001953
0
1.00
Code
Digital Output Offset Binary (D9
... D0)
11 1111 1111
10 0000 0000
01 1111 1111
00 0000 0000
Data from each ADC is serialized and provided on a separate
channel. The data rate for each serial stream is equal to 10 bits
times the sample clock rate, with a maximum of 650 Mbps
(10 bits × 65 MSPS = 650 Mbps). The lowest typical conversion
rate is 10 MSPS. However, if lower sample rates are required for
a specific application, the PLL can be set up for encode rates
lower than 10 MSPS via the SPI. This allows encode rates as low
as 5 MSPS. See the Memory Map section to enable this feature.
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