zl50010 Zarlink Semiconductor, zl50010 Datasheet - Page 2
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zl50010
Manufacturer Part Number
zl50010
Description
Flexible 512 Channel Dx With Enhanced Dpll
Manufacturer
Zarlink Semiconductor
Datasheet
1.ZL50010.pdf
(87 pages)
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Applications
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Description
The device has 16 ST-BUS inputs (STi0-15) and 16 ST-BUS outputs (STo0-15). It is a non-blocking digital switch
with 512 64 kbps channels and performs rate conversion between the ST-BUS inputs and ST-BUS outputs. The
ST-BUS inputs accept serial input data streams with the data rate of 2.048 Mbps, 4.096 Mbps or 8.192 Mbps on a
per-stream basis. The ST-BUS outputs deliver serial output data streams with the data rate of 2.048 Mbps,
4.096 Mbps or 8.192 Mbps on a per-stream basis. The device also provides 16 high impedance control outputs
(STOHZ 0-15) to support the use of external high impedance control buffers.
The ZL50010 has features that are programmable on a per-stream or per-channel basis including message mode,
input bit delay, output bit advancement, constant throughput delay and high impedance output control.
The on-chip DPLL meets Telcordia GR-1244-CORE Stratum 4 enhanced specifications (Stratum 4E). It accepts
two dedicated timing reference inputs at either 8 kHz, 1.544 MHz or 2.048 MHz. Alternatively, one reference can be
replaced by an internal 8 kHz signal derived from the ST-BUS input frame boundary. The DPLL provides automatic
reference switching, jitter attenuation, holdover and free run functions. It can be used as a system’s ST-BUS timing
source which is synchronized to the network. The DPLL can also be bypassed so that the device operates under
system timing.
Small and medium digital switching platforms
Access Servers
Time Division Multiplexers
Computer Telephony Integration
Digital Loop Carriers
Zarlink Semiconductor Inc.
ZL50010
2
Data Sheet