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CDCE18005EVM 其他数据使用手册 - TI(德州仪器)
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开发套件
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CDCE18005EVM数据手册
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1 Features
2 General Description
User's Guide
SCAU025 – September 2008
Low Phase Noise Clock Evaluation Module — up to 1.5
GHz
• Easy-to-use evaluation module to generate low
phase noise clocks up to 1.5 GHz
• Easy device programming via host-powered USB
port
• Rapid configuration through provided EVM Control
Software
• Can be powered from the USB port, or by an
external 3.3V power supply
• Single-ended or differential input; external crystal
can be used with on-chip oscillator
• Footprint for optional crystal filter on one output
Figure 1. CDCE18005EVM Evaluation Board
The CDCE18005 is a high performance 3-input / 10-output mixed mode clock buffer chip with low additive
jitter. It has three selectable inputs, and provides up to five differential or ten single-ended, low additive
jitter, mixed-mode outputs.
The CDCE18005 features single-ended and differential inputs. An integrated crystal oscillator circuit that
operates in conjunction with an external AT-cut crystal is also provided.
The CDCE18005 is programmed through an SPI interface using the supplied EVM programming graphical
user interface (GUI).
The evaluation module (EVM) demonstrates the electrical performance of the device. This
fully-assembled, factory-tested evaluation board allows complete validation of all device functions. For
optimum performance, the board is equipped with 50 Ω SMA connectors and well-controlled 50 Ω
impedance microstrip transmission lines.
SCAU025 – September 2008 Low Phase Noise Clock Evaluation Module — up to 1.5 GHz 1
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