Very Low Jitter HCSL Clock
Model 645H
Very Low Jitter HCSL Clock
Features
High Speed Current Steering Logic [HCSL] Output Ceramic Surface Moun...
Description
Model 645H
Very Low Jitter HCSL Clock
Features
High Speed Current Steering Logic [HCSL] Output Ceramic Surface Mount Package Low Phase Jitter Performance, 500fs Typical Fundamental or 3rd Overtone Crystal Design Frequency Range 13.5MHz – 160MHz * +2.5V or +3.3V Operation Output Enable Standard Tape and Reel Packaging, EIA-418
Applications
PCI Express [PCIe] Data Storage Systems Ethernet Line Cards Serial ATA Express [SATAe]
Intel Chipsets Network Servers Switches and Routers Set-Top Boxes/DVRs
Part Dimensions: 5.0 × 3.2 × 1.4mm 58.1mg
Standard Frequencies
- 25MHz
- 100MHz
- 27MHz
- 106.25MHz
- 50MHz
- 125MHz
- 155.52MHz - 156.25MHz
* Check with factory for availability of frequencies not listed.
Description
CTS Model 645H is a low cost, high performance clock oscillator supporting HCSL output. Employing the latest IC technology, M645H has excellent stability and low phase jitter performance.
Ordering Information
Model 645
Output Type H
Frequency Code
[MHz]
XXX or XXXX
Frequency
Stability 3
Temperature
Range I
Supply
Voltage 3
Packaging T
Code H
Output HCSL - Pin 1 Enable
Code 5 4 3 2
Stability ±25ppm ±30ppm ±50ppm ±100ppm
Code 2 3
Voltage +2.5Vdc +3.3Vdc
Code Frequency
Code Temp. Range
Code Packing
Product Frequency Code 1
C -20°C to +70°C I -40°C to +85°C
T 1k pcs./reel
G -40°C to +105°C 2
Notes:
1] Refer to document 016-1454-0, Frequency Code Tables. 3-digits for frequencies <100MHz, 4-digits for frequen...
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