TM022

THE CONNOR-WINFIELD CORP.

2111 COMPREHENSIVE DRIVE.

AURORA, IL 60505.

FAX (630) 851-5040.

PHONE (630) 851-4722

HTTP://WWW.CONWIN.COM

CONNOR

WINFIELD

NETWORK ELEMENT TIMING GENERATOR

STRATUM 3 SIMPLIFIED CONTROL

TIMING MODULES (MSTM-S3-R)

DATA SHEET #: ____________ PAGE______ OF _______ REV:________ DATE:____________

Specifications subject to change without notice.

PRELIMINARY

P02

3/21/01

7

3

MSTM-S3

PIN #

1

HOLD OVER

-Output. High when the control inputs select Holdover.

2

REF 1

-Output. High when the control inputs select EX REF 1.

3

REF 2

-Output. High when the control inputs select EX REF 2.

4

FREE RUN

-Output. High when the control input selects Free Run.

5

Gnd

-Ground.

6

ALARM_OUT

-Ouput. =1,If (FREE RUN + HOLD OVER + LOR + LOL + PLL_TVL) .

7

CNTL A

-Mode control input.

8

CNTL B

-Mode control input.

9

PLL_TVL

-Tuning Voltage Alarm. =1 If CAPTURE RANGE NEAR 10% OF EXTREME (~11ppm).

10

TRI-STATE

-Tri-state enable = 1. All outputs ae put into a high impedance state.

11

SYNC_OUT

-Syncronized output.

12

Gnd

-Ground.

13

CLK_OUT

-Stratum 3 TCXO output. (Non-synchronized).

14

Gnd

-Ground.

15

EX REF 2

-External Reference #2 Input. (8 KHz)

16

Gnd

-Ground.

17

EX REF 1

-Input. External Reference #1 Input. (8 KHz)

18

+5 Vdc

+5 Volt DC supply.

PIN DESCRIPTION

NOTES:

1.0

Operation of the device at these or any other conditions beyond those listed under Recommended Operating Conditions is not implied. Exposure to

Absolute Maximum Ratings conditions for extended periods of time may affect device reliability.

2.0

Power-on Reset will activate within the stated range

3.0

Ref- GR1244-CORE 3.2.1 R3-1.

4.0

Holdover stability is the cumulative fractional frequency offset containing Initial Offset, Temperature, and Drift components as described by

Bellcore GR-1244-CORE 5.2.

5.0

Pull-in range is the minimum frequency deviation on the reference inputs to the timing module that can be overcome to pull itself into synchronization

with the reference.

6.0

A ‘1’ level indicates unit is within the extreme 10% of its operating range tracking the reference (~11ppm). Consult factory for use as a reference

quilifier.

NOTES FOR TABLES 1.0 - 4.0