ZL50021_0611 Datasheet, PDF (1/136 Pages) Zarlink Semiconductor Inc – Enhanced 4 K Digital Switch with Stratum 3 DPLL

ZL50021
Enhanced 4 K Digital Switch with
Stratum 3 DPLL
Data Sheet
Features
• 4096-channel x 4096-channel non-blocking digital
Time Division Multiplex (TDM) switch at 8.192
and 16.384 Mbps or using a combination of ports
running at 2.048, 4.096, 8.192 and/or
16.384 Mbps
• 32 serial TDM input, 32 serial TDM output
streams
• Integrated Digital Phase-Locked Loop (DPLL)
exceeds Telcordia GR-1244-CORE Stratum 3
specifications
• Output clocks have less than 1 ns of jitter (except
for the 1.544 MHz output)
• DPLL provides holdover, freerun and jitter
attenuation features with four independent
reference source inputs
November 2006
Ordering Information
ZL50021GAC
256 Ball PBGA
Trays
ZL50021QCC
256 Lead LQFP
Trays
ZL50021QCG1 256 Lead LQFP* Trays, Bake &
Drypack
ZL50021GAG2 256 Ball PBGA** Trays, Bake &
Drypack
*Pb Free Matte Tin
**Pb Free Tin/Silver/Copper
-40°C to +85°C
• Programmable key DPLL parameters (filter corner
frequency, locking range, auto-holdover
hysteresis range, phase slope, lock detector
range)
• Exceptional input clock cycle to cycle variation
tolerance (20 ns for all rates)
• Output streams can be configured as bi-
directional for connection to backplanes
STi[31:0]
FPi
CKi
MODE_4M0
MODE_4 M1
REF0
REF1
REF2
REF3
REF_FAIL0
REF_FAIL1
REF_FAIL2
REF_FAIL3
OSC_EN
V_{DD_CORE} V_{DD_IO} V_{DD_COREA} V_{DD_IOA} V_SS RESET
ODE
S/P Converter
Data Memory
P/S Converter
Input Timing
DPLL
Connection Memory
Output HiZ
Control
Output Timing
OSC
Internal Registers &
Microprocessor Interface
Test Port
STio[31:0]
STOHZ[15:0]
FPo[3:0]
CKo[5:0]
FPo_OFF[2:0]
Figure 1 - ZL50021 Functional Block Diagram
Zarlink Semiconductor US Patent No. 5,602,884, UK Patent No. 0772912,
France Brevete S.G.D.G. 0772912; Germany DBP No. 69502724.7-08
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004-2006, Zarlink Semiconductor Inc. All Rights Reserved.