Features

125 Series

FTS125-CTV-010.0 MHz

GPS Disciplined Oscillators

2111 Comprehensive Drive

Aurora, Illinois 60505

Phone: 630- 851- 4722

Fax: 630- 851- 5040

www.conwin.com

Bulletin

SG185

Revision

02

Date

03 Jan 12

Issued By

ENG

General Description

The FTS125-CTV-010.0 MHz Frequency and Time

Standard module is a TCXO GPS driven, mixed-signal

phase lock loop, providing a 1 PPS CMOS output from

a Connor-Winfield GPS timing receiver and generating

a 10 MHz CMOS and a 10 MHz SINE output from an

intrinsically low jitter voltage controlled crystal oscillator.

The FTS125 can lock to a 10 MHz reference derived

from the on-board GPS receiver or an external 10 MHz

reference or to an external 1 PPS reference. Alarms

are provided to indicate Loss-of-Lock, Holdover, and

Antenna Fault. The on-board GPS receiver requires an

outdoor mounted GPS antenna for the best stability and

consistent performance.

The mode control inputs are used to manually

switch between references and/or holdover. The user

application should monitor the alarm outputs and manually switch modes as needed.

Serial I/O lines provide access to the NMEA messages from the GPS receiver

(referenced in the Connor-Winfield’s Wi125 User Manual. Contact Connor-Winfield Sales

for a copy). The serial I/O lines can be used to access GPS timestamp information, or to

verify that the receiver has recovered from an alarm condition. The reset is used to reset

the GPS receiver (if needed).

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Available at Digi-Key

www.digikey.com