Details, datasheet, quote on part number: ZL50058
PartZL50058
Category
Description12 K Channel Digital Switch With High Jitter Tolerance, Per Stream Rate Conversion (2, 4, 8, 16 or 32 Mbps), 48 Input And 48 Output ...
CompanyZarlink Semiconductor
DatasheetDownload ZL50058 datasheet
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Features, Applications

12K-Channel Digital Switch with High Jitter Tolerance, Per Stream Rate Conversion or 32Mbps), and 48 Inputs and 48 Outputs Data Sheet Features

x 12,288-channel non-blocking unidirectional switching.The Backplane and Local inputs and outputs can be combined to form a non-blocking switching matrix with 48 input streams and 48 output streams x 4,096-channel non-blocking Backplane input to Local output stream switch x 8,192-channel non-blocking Local input to Backplane output stream switch x 8,192-channel non-blocking Backplane input to Backplane output switch x 4,096-channel non-blocking Local input to Local output stream switch Rate conversion on all data paths, Backplane-toLocal, Local-to-Backplane, Backplane-toBackplane and Local-to-Local streams Backplane port accepts 32 input and 32 output ST-BUS streams with data rates 16.384Mbps in any combination, or a fixed allocation of 16 input and 16 output streams at 32.768Mbps Local port accepts 16 input and 16 output STBUS streams with data rates of 2.048Mbps,

Ordering Information ZL50057GAC 272-Ball PBGA ZL50058GAC 256-Ball PBGA 16.384Mbps in any combination, or a fixed allocation of 8 input and 8 output streams at 32.768Mbps Exceptional input clock jitter tolerance (17ns for 16Mbps or lower data rates, 14ns for 32Mbps) Per-stream channel and bit delay for Local and Backplane input streams Per-stream advancement for Local and Backplane output streams Constant 2-frame throughput delay for frame integrity Per-channel high impedance output control for Local and Backplane streams Per-channel driven-high output control for Local and Backplane streams

Zarlink Semiconductor Inc. Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc. Copyright 2003, Zarlink Semiconductor Inc. All Rights Reserved.

High impedance-control outputs for external drivers on Local and Backplane ports Per-channel message mode for Local and Backplane output streams Connection memory block programming for fast device initialization BER testing for Local and Backplane ports Automatic selection between ST-BUS and GCI-Bus operation Non-multiplexed Motorola microprocessor interface Conforms to the mandatory requirements of the IEEE-1149.1 (JTAG) standard Memory Built-In-Self-Test (BIST), controlled via microprocessor register 1.8V core supply voltage 3.3V I/O supply voltage 5V tolerant inputs, outputs and I/Os ZL50057 is pin-to-pin compatible with Zarlink's MT90870 device

Note 1: For software compatibility between ZL50057 and MT90870, please refer to Section 2.6.
Applications

Central Office Switches (Class 5) Media Gateways Class-independent switches Access Concentrators Scalable TDM-Based Architectures Digital Loop Carriers

The ZL50057 and ZL50058 are two different packages of the same device. The ZL50057/8 has two data ports, the Backplane and the Local port. The Backplane port has two independent modes of operation, either 32 input and 32 output streams operated 16.384Mbps, in any combination, or 16 input and 16 output streams operated at 32.768Mbps. The Local port has two independent modes of operation, either 16 input and 16 output streams operated 16.384Mbps, in any combination, or 8 input and 8 output streams operated at 32.768Mbps. The ZL50057/8 contains two data memory blocks (Backplane and Local) to provide the following switching path configurations: Input-to-Output Unidirectional, supporting x 12K switching Backplane-to-Local Bi-directional, supporting x 4K data switching, Local-to-Backplane Bi-directional, supporting x 8K data switching, Backplane-to-Backplane Bi-directional, supporting x 8K data switching. Local-to-Local Bi-directional, supporting x 4K data switching.

The device contains two connection memory blocks, one for the Backplane output and one for the Local output. Data to be output on the serial streams may come from either of the data memories (Connection Mode) or directly from the connection memory contents (Message Mode). In Connection Mode, the contents of the connection memory define, for each output stream and channel, the source stream and channel (stored in data memory) to be switched. In Message Mode, microprocessor data can be written to the connection memory for broadcast on the output streams on a per channel basis. This feature is useful for transferring control and status information to external circuits or other ST-BUS devices. The device uses a master frame pulse (FP8i) and master clock (C8i) to define the input frame boundary and timing for both the Backplane port and the Local port. The device will automatically detect whether an ST-BUS or a GCIBus style frame pulse is being used. There is a two-frame delay from the time RESET is de-asserted to the establishment of full switch functionality. During this period, the input frame pulse format is determined before switching begins. The device provides FP16o, C8o and C16o outputs to support external devices connected to the outputs of the Backplane and Local ports. A non-multiplexed Motorola microprocessor port allows programming of the various device operation modes and switching configurations. The microprocessor port provides access for Register read/write, Connection Memory read/write and Data Memory read-only operations. The port has a 15-bit address bus, 16-bit data bus and 4 control signals. The microprocessor may monitor channel data in the Backplane and Local data memories. The mandatory requirements of the IEEE-1149.1 (JTAG) standard are fully supported via a dedicated test port. The ZL50057 and ZL50058 are each available in one package: x 27mm body, 1.27mm ball-pitch, x 17mm body, 1mm ball-pitch, 256-PBGA.


 

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