Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel:1-88-VECTRON-1
Website: www.vectron.com
Page 1 of 14
Rev : 06Jul05
CD-700
Complete VCXO Based Phase Lock Loop
Figure 1. CD-700 Block Diagram
Features
• 5 x 7.5 x 2 mm, smallest VCXO PLL available
• Output Frequencies to 77.76 MHz
• 5.0 or 3.3 Vdc operation
• Tri-State Output
• Loss of Signal Alarm
• VCXO with CMOS outputs
• 0/70 or –40/85 °C temperature range
• Hermetically sealed ceramic SMD package
• Product is compliant to RoHS directive
Applications
• Frequency Translation
• Clock Smoothing, Clock Switching
• NRZ Clock recovery
• DSLAM, ADM, ATM, Aggregation, Optical
Switching/Routing, Base Station
• Low jitter PLL’s
Description
The VI CD-700 is a user-configurable crystal
based PLL integrated circuit. It includes a digital
phase detector, op-amp, VCXO and additional
integrated functions for use in digital
synchronization applications. Loop filter software
is available as well SPICE models for circuit
simulation.
DATAIN
(5)
CLKIN
(6)
VDD
(14)
HIZ
(12)
GND
(7)
OUT2
(11)
RCLK
(9)
RDATA
(10)
OPP
(15)
LO
S
PHO
(3)
OPN
(2)
OPOUT
(1)
VC
(16)
LOSIN
(4)
OP-Amp
VCXO
OUT1
(13)
Optional
2
n Divider
Phase
Detector
and LOS