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Overview
The ispClock5300S is an in-system-programmable zero delay universal fan-out buffer for use in clock distribution applications. The ispClock5300S family provides 4 to 20 single-ended ultra low skew outputs.
Please select a document category from the selection on the left-hand side of this page for more information on ispClock5300S.
 Block Diagram
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Features
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- Four Operating Configurations
- Zero delay buffer
- Zero delay and non-zero delay buffer
- Dual non-zero delay buffer
- Non-zero delay buffer with output divider
- 8MHz to 267MHz Input/Output Operation
- Low Output to Output Skew (<100ps)
- Low Jitter Peak-to-Peak (< 70 ps)
- Up to 20 Programmable Fan-out Buffers
- Programmable single-ended output standards and individual enable controls
- LVTTL, LVCMOS, HSTL, eHSTL, SSTL
- Programmable output impedance
- 40 to 70Ω in 5Ω increments
- Programmable slew rate
- Up to 10 banks with individual VCCO and GND
- Fully Integrated High-Performance PLL
- Programmable lock detect
- Three “Power of 2” output dividers (5-bit)
- Programmable on-chip loop filter
- Compatible with spread spectrum clocks
- Precision Programmable Phase Adjustment (Skew) Per Output
- 8 settings; minimum step size 156ps
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- Up to +/- 5ns skew range
- Coarse and fine adjustment modes
- Up to Three Clock Frequency Domains
- Flexible Clock Reference and External Feedback Inputs
- Programmable single-ended or differential input reference standards
- LVTTL, LVCMOS, SSTL, HSTL, LVDS, LVPECL, Differential HSTL, Differential SSTL
- Clock A/B selection multiplexer
- Programmable Feedback Standards
- LVTTL, LVCMOS, SSTL, HSTL
- Programmable termination
- All Inputs and Outputs are Hot Socket Compliant
- Full JTAG Boundary Scan Test In-System Programming Support
- Exceptional Power Supply Noise Immunity
- Commercial (0 to 70°C) and Industrial (-40 to 85°C) Temperature Ranges
- 48-pin and 64-pin TQFP Packages
- Applications
- Circuit board common clock distribution
- PLL-based frequency generation
- High fan-out clock buffer
- Zero-delay clock buffer
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Four Modes of Operation
 Zero Delay Buffer Mode |
 Dual Non-Zero Delay Buffer Mode |
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 Zero Delay Buffer and Non-Zero Delay Buffer Mode |
 Non-Zero Delay Buffer with and without Output Dividers |
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