SI5020C-BA Datasheet, PDF (1/14 Pages) Silicon Laboratories – Si5020 MICRO PCB WITH S3050 FOOTPRINT

Si5020C-BA
Si5020 MICRO PCB WITH S3050 FOOTPRINT
Features
! Supports substitution of the
Si5020 in systems designed
for AMCC S3050 footprint
! Simplifies evaluation of the
Si5020 device
! DSPLL™ technology eliminates
external loop filter components
! Excellent jitter generation performance:
3.0 mUIrms (typical)
! Low power consumption: 108 mA at
OC-48 (typical)
! Wide supply voltage range: 3 to 6 V
Applications
! Replacement for S3050
! In-system evaluation of the Si5020 SiPHY^TM multi-rate SONET/SDH
clock and data recovery IC
Ordering Information:
See page 11.
Pin Assignments
Si5020C-BA
Description
The Si5020C-BA is a micro printed circuit board (PCB) that allows use of
the Si5020 clock and data recovery (CDR) device in communications
systems originally designed for the AMCC S3050. No system circuit board
changes are necessary because the micro PCB is pin-compatible with the
S3050.
The Si5020 device offers significant advantages in jitter performance,
power dissipation, ease of use, and size over competing CDRs. The
Si5020 incorporates Silicon Laboratories’ DSPLL™ technology for
improved performance and ease of use. DSPLL technology eliminates
external loop filter components and their associated noise entry points,
thus making the Si5020 CDR less susceptible to board-level interaction
and helping to ensure optimal jitter performance.
Functional Block Diagram
NC 1
VCC 2
VEE 3
VEE 4
SERDATIP 5
SERDATIN 6
NC 7
REFCLKP 8
24 RATESEL1
23 SERCLKOP
22 SERCLKON
21 VEE
20 NC
19 SERDATOP
18 SERDATON
17 NC
Top View
RATESEL0
RATESEL1
SERDATIP
SERDATIN
REFCLKP
REFCLKN
VCC
DIN+
DIN–
REFCLK+
REFCLK–
IN
POK
GND
OUT
Regulator
Si5020
CDR
Inverter
DOUT+
DOUT–
LOCKDET
SERDATOP
SERDATON
CLKOUT+
CLKOUT–
SERCLKOP
SERCLKON
VEE
Rev. 1.0 3/04
Copyright © 2004 by Silicon Laboratories
Si5020C-BA-DS10