The XRT91L33 is a fully integrated multirate Clock and Data Recovery (CDR) device for SONET/SDH 622.08 Mbps STS-12/STM-4 or 155.52 Mbps STS-3/STM-1 applications. The device provides Clock and Data Recovery (CDR) function by synchronizing its on-chip Voltage Controlled Oscillator (VCO) to the incoming serial scrambled non-return to zero (NRZ) data stream.
- Performs clock and data recovery for selectable data of 622.08 Mbps (STS-12/STM-4) or 155.52 Mbps (STS-3/STM-1) NRZ data
- Meets Telcordia, ANSI and ITU-T G.783 and G.825 SDH jitter requirements including T1.105.03 - 2002 SONET Jitter Tolerance specification, and GR-253 CORE, GR-253 ILR SONET Jitter specifications
- Lock output pin monitors data run length and frequency drift from reference clock
- Data is resampled at the output
- Active High Signal Detect (SIGD) LVPECL input
- Low jitter, high-speed outputs support LVPECL and low-power LVDS termination
- 19.44 MHz reference frequency LVTTL input
- Low power: 215 mW typical
- 3.3V power supply
- 20-pin TSSOP package
- Requires one external capacitor
- PLL bypass operation facilitates board debug process
- ESD greater than 2kV on all pins
- Pb-Free, RoHS Compliant Versions Offered
- SONET/SDH-based Transmission Systems
- Add/Drop Multiplexers
- Cross Connect Equipment
- ATM and Multi-Service Switches, Routers and Switch/Routers
- SONET/SDH Test Equipment
- DWDM Termination Equipment
Documentation & Design Tools
|XRT91L33 STS-12/STS-3 MultiRate Clock and DATA RECOVERY UNIT
Quality & RoHS
|RoHS | Exempt
|MSL Rating / Peak Reflow
|L1 / 260ᵒC
|L1 / 260ᵒC
Click on the links above to download the Certificate of Non-Use of Hazardous Substances.
Parts & Purchasing
Active - the part is released for sale, standard product.
EOL (End of Life) - the part is no longer being manufactured, there may or may not be inventory still in stock.
CF (Contact Factory) - the part is still active but customers should check with the factory for availability. Longer lead-times may apply.
PRE (Pre-introduction) - the part has not been introduced or the part number is an early version available for sample only.
OBS (Obsolete) - the part is no longer being manufactured and may not be ordered.
NRND (Not Recommended for New Designs) - the part is not recommended for new designs.
FAQs & Support
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