ZL30410 MULTI-SERVICE LINE CARD PLL VOICE / DATA ZL30410 Simplified Block Diagram Multi-Service Line Card PLL References DPLL Core Digital PLL Primary Reference Analog PLL Reference Independant Frequency Detection & Monitoring Switching, Phase Transient Clock & Frame Pulse Outputs High Performance 15 Suppression, Jitter Filtering (CMOS & LVDS) & Holdover Secondary Reference Hardware Control & State Machine 20MHz Clock Oscillator Control & Monitoring The ZL™30410 is a digital phase locked loop (DPLL) ideal for Synchronous Optical Network (SONET), Synchronous Digital Hierarchy (SDH) and T1/E1 line cards. The ZL30410 is based on an enhanced DPLL architecture that ensures an efficient route to compliance with international synchronization standards. Featuring industry-leading jitter performance, reference out of range detection, and excellent holdover accuracy, the ZL30410 ensures reliable line card clocks even in the presence of jitter, wander and interruptions to the reference signal. The new DPLL is a standard, IC-based solution that eliminates requirements for external loop filter components and reduces board space, cost and complexity compared to traditional DSP-based or module solutions. Applications Line card synchronization for SDH, SONET, DS3, E3, J2 (DS2), E1 and DS1 interfaces Timing card synchronization for SDH Option 1 and PDH Network Elements Clock generation for ST-BUS and GCI timing At a Glance Package: 80-pin LQFP Volume Production: Now www.ZARLINK.com Industry-leading digital PLL jitter performance of 325ps on 155.52MHz clock allows a direct interface to STM-1/OC-3 framers and mappers. Very low MTIE after hitless reference switching between references with different frequencies. Automatic reference out of range detection continuously monitors timing references, and alarms if frequency error exceeds 12ppm. Holdover accuracy of 0.07ppb (10-9) ensures precise timing when the network reference is down. Flexible for Multiple System Requirements Supports free-run, normal (locked) or holdover modes. Selectable loop filter corner frequency supports line card (12Hz) and SDH Option 1 timing card (6Hz) applications. STM-1, OC-3, DS3, E3, 19.44MHz, DS2, E1, DS1, 8kHz and TDM bus clock outputs to 16.384MHz. Accepts reference inputs from two independent sources and synchronizes to any combination of 8kHz, 1.544MHz, 2.048MHz and 19.44MHz. Simplifies Line Card Design Hardware interface control and status pins allow the device to operate without a dedicated microprocessor interface. External oscillator enhances flexibility with choice of size, source, quality and cost. Standards Compliant ITU-T G.813 Option 1 and Option 2 Telcordia GR-253-CORE Customer Support The ZL30410 is supported by a customer evaluation board, as well as with Zarlink’s network of in-house field application and design engineers. ZL30410 MULTI-SERVICE LINE CARD PLL VOICE / DATA SONET and SDH are the leading transport technologies for high-speed networks, offering versatility, reliability and the ability to support synchronous and asynchronous traffic. Synchronization of network elements in the SONET/SDH infrastructure is critical to system performance. The ZL30410 further improves synchronization with reference out of range detection, which allows the device to verify the accuracy of reference signals, and reject references exceeding 12ppm. As shown below, the ZL30410 synchronizes line cards in compliance with the ITU-T G.813 Option 1 and Option 2, and the Telcordia GR-253-CORE specifications. Paired with a 20MHz clock oscillator, the ZL30410 provides line card clocks that support all of the stability requirements for wander, phase transient control and holdover. Achieving the industry’s best digital PLL jitter performance, the ZL30410 can directly drive jitter-sensitive STM-1 and OC-3 components. It also provides clocks and framing pulses required by commonly used STM-1, OC3 and T1/E1 framers and mappers. This eliminates requirements for a companion analog PLL or clock dividers, as well as external loop filters, thereby reducing cost, board space and complexity. The DPLL enables hitless reference switching between references of different frequencies, and provides Stratum 3E holdover accuracy of 0.07ppb. This allows network equipment to continue to send and receive data even when the source of network synchronization is interrupted or changed. The ZL30410 can also serve as the main timing card DPLL in SDH Option 1 and T1/E1 stratum 4 or 4E systems. Equipped with hardware interface control and status pins, the device is able to operate in all modes without a dedicated microprocessor. Accepts Different Frequency References 19MHz STM-1 /OC-3 Line Cards 325ps Jitter Multi-Service Line Card PLL ZL30410 8KHz T1/E1 Framer (BITS or SSU) T1/E1 Framer (BITS or SSU) Master Clock Oscillator Multi-Service Line Card PLL ZL30410 Reference Monitoring & Clock Control Timing Distribution via Backbone SONET/SDH Timing Card 2MHz 1.5MHz Multi-Service Line Card Application Example Information relating to products and services furnished herein by Zarlink Semiconductor Inc. or its subsidiaries (collectively Zarlink) is believed to be reliable. However, Zarlink assumes no liability for errors that may appear in this publication, or for liability otherwise arising from the application or use of any such information, product or service. The products, their specifications, services and other information appearing in this publication are subject to change by Zarlink without notice. No warranty or guarantee expressed or implied is made regarding the capability, performance or suitability of any product or service. ZARLINK, ZL, and the Zarlink logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved. Publication Number PP5855 www.ZARLINK.com Directly Drives SONET/SDH Framer and Mappers DS3 /E3 Line Cards Clock Oscillator M13 MUX 34.368MHz 44.736MHZ 5 controls & 4 Status Pins Simplified Control Via Hardware Interface Host Processor T1/E1 /J1 Line Cards Multi-Service Line Card PLL ZL30410 8KHz STM-1/OC-3 Framer Clock Oscillator Multi-Service Line Card PLL ZL30410 2MHz 19.440MHz 155.52MHZ Clock Oscillator 1.544MHz 2.048MHZ 4.096MHZ 6.312MHZ 8.192MHZ 16.384MHZ T1/E1/J1 Framers Generates Industry’s Standard Telecom Fequencies