ZL30120
SONET/SDH/Ethernet Multi-Rate Line Card Synchronizer
Overview
The ZL30120 Multi-Rate Line Card Synchronizer is a highly integrated device that provides timing and synchronization for network interface cards. It incorporates two independent DPLLs, each capable of locking to one of eight input references and provides a wide variety of synchronized output clocks and frame pulses.
Features & Benefits
- Synchronizes with standard telecom system references and synthesizes a wide variety of protected telecom line interface clocks that are compliant with Telcordia GR-1244-CORE, GR-253-CORE, ITU-T G.813, and compatible with ITU-T G.8261 (formerly G.pactiming)
- Internal low jitter APLL provides SONET/SDH clocks including 6.48 MHz, 19.44 MHz, 38.88 MHz, 51.84 MHz and 77.76 MHz, or 25 MHz and 50 MHz Synchronous Ethernet output clocks
- Provides two DPLLs which have independent modes of operation (locked, free-run, holdover) and optional hitless reference switching
- Programmable output synthesizers (P0, P1) generate general purpose clock frequencies from any multiple of 8 kHz up to 100 MHz
- Provides 8 reference inputs which support clock frequencies with any multiples of 8 kHz up to 77.76 MHz in addition to 2 kHz
- Generates several styles of output frame pulses with selectable pulse width, polarity, and frequency
- Configurable input to output delay, and output to output phase alignment
Resources
Resources
Application Notes
- ZLAN-442 Crystals and Oscillators for Next Generation Timing Solutions
- ZLAN-179 Low Jitter Synchronizer Power Supply Decoupling and Layout Practices
- ZLAN-214 - Configuring the ZL30120 for Ethernet Frequencies
- ZLAN-199-Programming Custom Input References
- Zlan211-appnote-ja2007
Applications
Typical Applications
- AMCs for AdvancedTCATMand MicroTCA
- Systems
- Synchronous Ethernet
- Multi-Service Edge Switches or Routers
- DSLAM Line Cards
- WAN Line Cards RNC/Mobile Switching Center Line Cards
- ADM Line Cards
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Ordering
Clock Generators & Support Products Pb Free Low Jitter Linecard Synchronizer
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| Digi-Key | ZL30120GGG2-ND | 250 | 1 | Tray | Buy Now |
