Texas Instruments CDC3S04EVM - CDC3S04EVM Evaluation Module CDC3S04EVM CDC3S04EVM Datenbogen
Produktcode
CDC3S04EVM
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Getting Started
Table 1. Clock Source
Component
TCXO on board
External input
R80
Not mounted
Not mounted
R74
Not mounted
Not mounted
R98
0R0
Not mounted
R97
Not mounted
0R0
C8
15 pF
15 pF
3
Getting Started
The CDC3S04EVM has self-explanatory labeling and uses similar naming conventions as the CDC3S04
product data sheet (
product data sheet (
). In this user’s guide, all words in boldface and italic print reflect the
actual labeling on the EVM.
4
Power-Supply Connections
The CDC3S04EVM has three pins that require external supply. Those pins are VDD_ANA, VDD_DIG and
VBAT. These supplies can come from the USB or using an external power supply. See
VBAT. These supplies can come from the USB or using an external power supply. See
for further
information.
Table 2. Supply source
USB
External Power Supply
R113 = 0R0
J50 OFF
R112 = Not mounted
J51 OFF
J50 ON
P3 = VDD_ANA
J51 ON
P1 = VDD_DIG
Also the CDC3S04 has an LDO build in that generates the supply for the TCXO. This voltage can be
generated using the TPS71219 on board or the P2 connector.
generated using the TPS71219 on board or the P2 connector.
5
Output Clock
The outputs of the CDC3S04 are available on any of the SMA connectors
Table 3. Outputs on the CDC3S04EVM
SMA
Output
J17
CLK1
J68
CLK2
J21
CLK3
J20
CLK4
6
Enabling/Disabling Outputs
The CDC3S04EVM has several jumpers that can control the output enable of the CDC3S04.
Table 4. Jumpers to Control the CDC3S04
Jumper
Function
J66
REQ1
J67
REQ2
J68
REQ3
J69
REQ4
J74
RESET
3
SCAU040 – March 2010
Quad Sine-Wave Clock Buffer Evaluation Board
Copyright © 2010, Texas Instruments Incorporated