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參數(shù)資料
| 型號： | ZL50018QCC |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 路由/交換 |
| 英文描述： | 2 K Digital Switch with Enhanced Stratum 3 DPLL |
| 中文描述： | TELECOM, DIGITAL TIME SWITCH, PQFP256 |
| 封裝： | 28 X 28 MM, 1.40 MM HEIGHT, MS-026BJC, LQFP-256 |
| 文件頁數(shù)： | 3/136頁 |
| 文件大?。?/td> | 1448K |
| 代理商： | ZL50018QCC |
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ZL50018
Data Sheet
3
Zarlink Semiconductor Inc.
Description
The ZL50018 is a maximum 2,048 x 2,048 channel non-blocking digital Time Division Multiplex (TDM) switch. It has
thirty-two input streams (STi0 - 31) and thirty-two output streams (STio0 - 31). The device can switch 64 kbps and
Nx64 kbps TDM channels from any input stream to any output stream. Each of the input and output streams can be
independently programmed to operate at any of the following data rates: 2.048, 4.096, 8.192 or 16.384 Mbps. The
ZL50018 provides up to sixteen high impedance control outputs (STOHZ0 - 15) to support the use of external
tristate drivers for the first sixteen output streams (STio0 - 15). The output streams can be configured to operate in
bi-directional mode, in which case STi0 - 31 will be ignored.
The device contains two types of internal memory - data memory and connection memory. There are four modes of
operation - Connection Mode, Message Mode, BER Mode and High Impedance Mode. In Connection Mode, the
contents of the connection memory define, for each output stream and channel, the source stream and channel
(the actual data to be output is stored in the data memory). In Message Mode, the connection memory is used for
the storage of microprocessor data. Using Zarlink's Message Mode capability, microprocessor data can be
broadcast to the data output streams on a per-channel basis. This feature is useful for transferring control and
status information for external circuits or other TDM devices. In BER mode the output channel data is replaced with
a pseudorandom bit sequence (PRBS) from one of 32 PRBS generators that generates a 2
15
-1 pattern. On the
input side channels can be routed to one of 32 bit error detectors. In high impedance mode the selected output
channel can be put into a high impedance state.
When the device is operating as a timing master, the internal digital PLL is in use. In this mode, an external
20.000 MHz crystal is required for the on-chip crystal oscillator. The DPLL is phase-locked to one of four input
reference signals (which can be 8 kHz, 1.544, 2.048, 4.096, 8.192, 16.384 or 19.44 MHz provided on REF0 - 3).
The on-chip DPLL operates in normal, holdover or freerun mode and offers jitter attenuation. The jitter attenuation
function exceeds the Stratum 3 specification.
The configurable non-multiplexed microprocessor port allows users to program various device operating modes
and switching configurations. Users can employ the microprocessor port to perform register read/write, connection
memory read/write, and data memory read operations. The port is configurable to interface with either Motorola or
Intel-type microprocessors.
The device also supports the mandatory requirements of the IEEE-1149.1 (JTAG) standard via the test port.
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| ZL50019 | Enhanced 2 K Digital Switch with Stratum 4E DPLL |
| ZL50019GAC | Enhanced 2 K Digital Switch with Stratum 4E DPLL |
| ZL50019QCC | Enhanced 2 K Digital Switch with Stratum 4E DPLL |
| ZL50022 | Enhanced 4 K Digital Switch with Stratum 4E DPLL |
| ZL50022GAC | Enhanced 4 K Digital Switch with Stratum 4E DPLL |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| ZL50018QCG1 | 制造商:Microsemi Corporation 功能描述:PB FREE 2K+ RATE CONVERSION AND S3 DPLL - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 2K-CH ENH 256LQFP |
| ZL50019 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 2 K Digital Switch with Stratum 4E DPLL |
| ZL50019_06 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Enhanced 2 K Digital Switch with Stratum 4E DPLL |
| ZL50019GAC | 制造商:Microsemi Corporation 功能描述:2K WITH RATE CONVERSION AND S4 - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA 制造商:Microsemi Corporation 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA |
| ZL50019GAG2 | 制造商:Microsemi Corporation 功能描述:PB FREE 2K WITH RATE CONVERSION+S4E DPLL 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 2K X 2K 1.8V/3.3V 256BGA - Trays 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA 制造商:Microsemi Corporation 功能描述:IC TDM SWITCH 2K-CH ENH 256PBGA |
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