HW-SD1800A-DSP-SB-UNI-G Xilinx Inc, HW-SD1800A-DSP-SB-UNI-G Datasheet - Page 32

• Manufacturer Part Number: HW-SD1800A-DSP-SB-UNI-G
• Description: KIT DEVELOPMENT SPARTAN 3ADSP
• Manufacturer: Xilinx Inc
• Series: Spartan™-3A DSPr
• Type: DSPr

Specifications of HW-SD1800A-DSP-SB-UNI-G

• Contents: Development Platform, Power Supply and software
• Silicon Manufacturer: Xilinx
• Features: 10/100/1000 PHY, JTAG Programming And Configuration Port
• Silicon Family Name: Spartan-3A
• Silicon Core Number: 3SD1800A-FG676
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: Spartan 3A
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 122-1574; HW-SD1800A-DSP-DB-UNI-G; HW-SD1800A-DSP-DB-UNI-G; HW-SD1800A-DSP-SB-UNI-G

Board Clocks
Board Clocks
56
Proper decoupling of the various FPGA power rails is extremely important; this design
adheres to Xilinx application note XAPP623
http://direct.xilinx.com/bvdocs/appnotes/xapp623.pdf. The decoupling strategy on the
Spartan-3A DSP Starter Platform is shown in
Table 19: FPGA Decoupling Capacitors
There are four clock sources provided on the Spartan-3A DSP Starter Platform:
•
•
•
•
The clock sources are listed and described in
4.7 uF (0603)
1.0 uF (0402)
.01 uF (0201)
Power/Gnd
Number of
Number of
Capacitors
A 125 MHz oscillator connected to GCLK7 (Bank 0).
A 25.175 MHz oscillator (primarily for VGA timing) connected to RHCLK2 (Bank 1).
A socket for a half-can oscillator connected to GCLK14 (Bank 2). The user must install
this oscillator.
An SMA connector footprint (J1) connected to GCLK4 (Bank 0). The user must install
this connector.
470 uF
Actual
Pairs
Total
11 15 11 11 11 25 10
9
1
2
3
5
14
1
2
4
8
9
1
2
3
5
www.xilinx.com
9
1
2
3
5
9
1
2
3
5
23
13
1
4
7
9
0
0
5
5
Table
Table
Tantalum
Capacitor
Capacitor
Capacitor
Capacitor
Ceramic
Ceramic
Ceramic
Spartan-3A DSP Starter Platform User Guide
41.0 uF
0.01 uF
4.7 uF
4.7 uF
0603
0402
0201
20.
19.
AVX
PIC
PIC
PIC
UG454 (v1.1) January 30, 2009
TAJD477K004R
ECJ1VB0J475M
ECJZEB0J103K
EJC-EB0J105M
Total
14
28
46
6
R