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AD9683 датащи(PDF) 28 Page - Analog Devices

номер детали AD9683
подробное описание детали  Analog-to-Digital Converter
PDF  45 Pages
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производитель  AD [Analog Devices]
домашняя страница  http://www.analog.com
Logo AD - Analog Devices

AD9683 датащи(HTML) 28 Page - Analog Devices

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Data Sheet
AD9683
Rev. D | Page 27 of 44
Reenable Lane After Configuration
After modifying the JESD204B link parameters, enable the link so
that the synchronization process can begin. This is accomplished
by writing Logic 0 to Address 0x5F, Bit 0.
CONVERTER
CONVERTER
INPUT
SYSREF±
SYNCINB±
CONVERTER
SAMPLE
AD9683 ADC
SERDOUT0±
JESD204B LANE CONTROL
(M = 1, L = 1)
Figure 59. Transmit Link Simplified Block Diagram
8B/10B
ENCODER/
CHARACTER
REPLACEMENT
SERIALIZER
t
..
.
~SYNC
SYSREF
VINA+
(MSB)
(LSB)
VINA–
SERDOUT±
A PATH
ADC
TEST PATTERN
16-BIT
JESD204B
TEST PATTERN
8-BIT
ADC
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
C0
C1
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
E0
E1
E2
E3
E4
E5
E6
E7
E10
E11
E12
E13
E14
E15
E16
E17
E8
E9
E0
E1
E2
E3
E4
E5
E6
E7
E8
E9
E18
E19
E19
OPTIONAL
SCRAMBLER
1 + x14 + x15
JESD204B
TEST PATTERN
10-BIT
Figure 60. Digital Processing of JESD204B Lane
Table 13. JESD204B Typical Configurations
JESD204B
Configure
Setting
M (No. of Converters),
Address 0x71,
Bits[7:0]
L (No. of Lanes),
Address 0x6E,
Bits[4:0]
F (Octets/Frame),
Address 0x6F,
Bits[7:0], Read Only
S (Samples/ADC/Frame),
Address 0x74, Bits[4:0],
Read Only
HD (High Density Mode),
Address 0x75, Bit 7,
Read Only
0x11 (Default)
1
1
2
1
0
DATA
FROM
ADC
FRAME
ASSEMBLER
(ADD TAIL BITS)
OPTIONAL
SCRAMBLER
1 + x14 + x15
8B/10B
ENCODER
TO
RECEIVER
Figure 61. ADC Output Data Path
Table 14. JESD204B Frame Alignment Monitoring and Correction Replacement Characters
Scrambling
Lane Synchronization
Character to be Replaced
Last Octet in
Multiframe
Replacement Character
Off
On
Last octet in frame repeated from previous frame
No
K28.7
Off
On
Last octet in frame repeated from previous frame
Yes
K28.3
Off
Off
Last octet in frame repeated from previous frame
Not applicable
K28.7
On
On
Last octet in frame equals D28.7
No
K28.7
On
On
Last octet in frame equals D28.3
Yes
K28.3
On
Off
Last octet in frame equals D28.7
Not applicable
K28.7



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