ZL30416
SONET/SDH Clock Multiplier PLL
Data Sheet
Features
•
Low jitter clock outputs suitable for OC-192, OC-
48, OC-12, OC-3 and OC-1 SONET applications
as defined in Telcordia GR-253-CORE
Low jitter clock outputs suitable for STM-64, STM-
16, STM-4 and STM-1 applications as defined in
ITU-T G.813
Provides one differential LVPECL output clock
selectable to 19.44, 38.88, 77.76, 155.52 or
622.08 MHz
Provides a single-ended CMOS output clock at
19.44 MHz
Accepts a single-ended CMOS reference at
19.44 MHz or a differential LVDS, LVPECL or
CML reference at 19.44 or 77.76 MHz
Provides a LOCK indication
8 mm x 8 mm CABGA package
3.3 V supply
Ordering Information
ZL30416GGG
64 Ball CABGA
November 2004
•
-40°C to +85°C
•
Description
The ZL30416 is an Analog Phase-Locked Loop (APLL)
designed to provide jitter attenuation and rate
conversion for SDH (Synchronous Digital Hierarchy)
and SONET (Synchronous Optical Network)
networking equipment. The ZL30416 generates low
jitter output clocks suitable for Telcordia GR-253-
CORE OC-192, OC-48, OC-12, OC-3, and OC-1 and
ITU-T G.813 STM-64, STM-16, STM-4 and STM-1
applications.
The ZL30416 accepts a CMOS compatible reference
at 19.44 MHz or a differential LVDS, LVPECL or CML
reference at 19.44 or 77.76 MHz and generates a
differential LVPECL output clock selectable to 19.44,
38.88, 77.76, 155.52 or 622.08 MHz and a single-
ended CMOS clock at 19.44 MHz. The ZL30416
provides a lock indication.
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•
•
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•
Applications
•
SONET/SDH line cards
REF_SEL
LPF
FS3 FS2 FS1
C19o, C38o, C77o,
C155o, C622o,
LVPECL output
C19i
Reference
Selection
MUX
Frequency
& Phase
Detector
Loop
Filter
VCO
REFinP/N
19.44 MHz and 77.76 MHz
State
Machine
Reference
and
Bias Circuit
Frequency
Dividers
and
Clock
Drivers
OC-CLKoP/N
C19o
C19i or C77i
CML, LVDS,
LVPECL input
REF_FREQ
LOCK
BIAS
VCC
GND
VDD
C19oEN
Figure 1 - Functional Block Diagram
1
Zarlink Semiconductor Inc.
Zarlink, ZL and the Zarlink Semiconductor logo are trademarks of Zarlink Semiconductor Inc.
Copyright 2004, Zarlink Semiconductor Inc. All Rights Reserved.
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
