ZL30302GAG

Overview

The ZL30302GAG is a Timing over Packet (ToP) device designed to recover and transmit network synchronization over Ethernet, IP, and MPLS networks. It recovers up to four independent clock frequencies from packet streams within the range of 1.544 MHz to 10 MHz. The component supports Master, Slave, and Repeater modes of operation and generates outgoing packet references locked to an electrical reference clock. It features dual configurable packet interfaces, including two MII interfaces or one MII and one GMII/TBI interface. The device operates within a temperature range of -40°C to +85°C and utilizes a 324-ball PBGA package.

Feature Summary

• Recovers and transmits network synchronization over asynchronous packet networks
• Supports Master, Slave, and Repeater modes with user-defined timing recovery algorithms
• Features dual configurable packet interfaces for flexible network integration
• Includes a flexible 32-bit host CPU interface compatible with Motorola PowerQUICC

Applications

• GSM and UMTS air interface synchronization over packet networks
• Circuit Emulation Service over Packets (CESoP) and TDM over IP (TDMoIP)
• Voice over IP (VoIP) gateways and IP-PBX systems
• Video conferencing and broadband video distribution

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to confirm package type and operating temperature range. Ensure compatibility with the intended host processor interface requirements before procurement. Confirm that the required timing accuracy specifications align with the Stratum 3 quality TCXO system clock configuration.

Selection Notes

Select this component when precise timing distribution over asynchronous packet networks is required. Evaluate the need for multiple independent clock recovery channels and the specific packet interface configurations available. Consider the host processor compatibility and the required operational temperature range for the target application environment.

Part Context

The ZL30302 belongs to the Zarlink Semiconductor ZL3030x family of devices, which implement Timing over Packet technology. This family provides solutions for high-performance clock synchronization across layer 2 and layer 3 networks using standard protocols such as Ethernet, VLAN, MPLS, IP, L2TPv3, UDP, and RTP.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation.