Download
Share
Print this page
Linear Technology DC2226A Demo Manual
  1. Manuals
  2. Brands
  3. Linear Technology Manuals
  4. Motherboard
  5. LTC6951
  6. Demo manual

Linear Technology DC2226A Demo Manual

Multichannel jesd204b adc with clocking
Hide thumbs
1
2
3
4
5
6

Advertisement

Quick Links

Download this manual
DESCRIPTION
Demonstration Circuit 2226A-A is a reference design
for a four-channel, 250Msps ADC system consist-
ing of two
LTC
2123, dual 14-bit 250Msps ADCs and
®
a JESD204B Subclass 1 clocking solution based on
the
LTC6951
Clock Synthesizer with Integrated VCO.
Other dash options reserved for future use. No external
clock source is required to operate the board; however,
the onboard 100MHz reference oscillator may be by-
passed, allowing synchronization to other equipment.
1µF
100MHz
REFERENCE
50
V
CC
LTC6951
REF INPUT
LTC6951
SYNC PULSE
Arrow.com.
Downloaded from
REFERENCE DISTRIBUTION
LTC6954-4
+
1µF
OUT0
+
IN
/1
–
OUT0
–
IN
+
OUT1
1µF
/1
–
OUT1
10k
+
OUT0SEL
OUT2
10k
/1
OUT1SEL
–
OUT2
10k
OUT2SEL
CK
SYNC
D
PULSE
SYNC TO REF TIMING
SYNC HELD HIGH A
MINIMUM OF 1ms
Figure 1. Subclass 1 ParallelSync Design Example
DEMO MANUAL DC2226A
Multichannel JESD204B ADC
Figure 1 is a block diagram of the DC2226A clock con-
figuration, consisting of two LTC6951s in a JESD204B
subclass 1, ParallelSync™ configuration. More detailed
information is available on the LTC6951 product page.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2226A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and
ParallelSync and PScope are trademarks of Linear Technology Corporation. All other trademarks
are the property of their respective owners.
470nF
1µF
1µF
100
470nF
1µF
1µF
CK
Q
D
Q
100
with Clocking
3.3V
5V
10
+
+
+
V
VCP
WCO
BB
CP
CMA
CMB
LTC6951#2
U10
CMC
TB
TUNE
BVCO
+
OUT4
1µF
–
OUT4
–
+
REF
OUT3
–
OUT3
1µF
+
OUT0
–
+
OUT0
REF
+
OUT1
–
OUT1
SYNC
+
OUT2
–
OUT2
3.3V
5V
10
+
+
+
V
VCP
WCO
BB
CP
CMA
CMB
LTC6951#1
U13
CMC
TB
TUNE
BVCO
+
OUT4
1µF
–
OUT4
–
+
REF
OUT3
–
OUT3
1µF
+
OUT0
–
+
OUT0
REF
+
OUT1
–
OUT1
SYNC
+
OUT2
–
OUT2
DC2226 F01
LTC6951
56.2
56.2
1nF
1.5nF
68nF
125MHz, FPGA CLOCK
15.625MHz, ADC2 SYSREF
2GHz, MUTED
250MHz, ADC2 CLOCK
PWRDN
56.2
56.2
1nF
1.5nF
68nF
15.625MHz, FPGA SYSREF
15.625MHz, ADC1 SYSREF
2GHz, MUTED
250MHz, ADC1 CLOCK
PWRDN
dc2226Afa
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the DC2226A and is the answer not in the manual?

Questions and answers

Related Manuals for Linear Technology DC2226A

Summary of Contents for Linear Technology DC2226A

  • Page 1 L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks and the onboard 100MHz reference oscillator may be by- ParallelSync and PScope are trademarks of Linear Technology Corporation. All other trademarks passed, allowing synchronization to other equipment.

  • Page 2: Quick Start Procedure

    Matlab or Python. Both Matlab and Python code for for testing DC2226A. If an RF generator is used, it DC2226A are included in the \matlab\DemoBoardEx- should be followed by a bandpass filter to limit noise amples\LTC2123 and \python\demo_board_examples\ and harmonics.
  • Page 3 DEMO MANUAL DC2226A QUICK START PROCEDURE 12V FROM ADAPTER SUPPLIED WITH KC705 USB TO HOST PC ANALOG INPUTS DC2226 F02 GROUND Figure 2. Basic Connections dc2226Afa Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from...
  • Page 4 DEMO MANUAL DC2226 QUICK START PROCEDURE Figure 3. Example Time Domain Plot Figure 4. Example Frequency Domain Plot dc2226Afa Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from...

  • Page 5: Hardware Setup

    Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 6 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.

This manual is also suitable for:

Ltc6951