Data Sheet #: TM027

Page 4 of 16

Rev: P05

Date: 12 / 02 / 02

© Copyright 2001 The Connor-Winfield Corp. All Rights Reserved

Specifications subject to change without notice

Ordering Information

MSTM-S3-TR-(Input Reference Frequency)(Opt_Out Frequency)-(Primary Output)

1= 1.544 MHz

Primary Output

÷ N option:

02.048M = 2.048MHz

2= 2.048 MHz

2= 2.048 MHz

016.384M = 16.384 MHz

8= 8 kHz

8= 8 kHz

019.44M = 19.44 MHz

9= 19.44 MHz

N= No output

032.768M = 32.768 MHz

S= Other

S= Other

038.88 M = 38.88 MHz

Reference Clock Out option:

077.76 M = 77.76 MHz

6= 16.384 MHz

9= 19.44 MHz

Example: MSTM-S3-TR-88-038.88M

Pin Description

Table 5

Pin #

Connection

Description

1

Hold Over

Indicator output. High output when Hold Over mode is selected by control pins.

2

Ref 1

Indicator output. High output when Ref 1 mode is selected by control pins.

3

Ref 2

Indicator output. High output when Ref 2 mode is selected by control pins.

4

Free Run

Indicator output. High output when Free Run mode is selected by control pins.

5

GND

Ground

6

Alarm _Out

Alarm output. High output if module is in Free Run, or Hold Over, or LOR.

7

CNTL A

Mode control input

8

CNTL B

Mode control input

9

PLL_Unlock

Indicates that the PLL is not locked to a reference.

10

Tri-State/GND

0 = Normal operation, 1= Tri-State. Pin is pulled low internally.

Ground pin for normal operation.

11

Sync_Out

Primary timing output signal. Signal is sychronized to reference.

12

GND

Ground

13

Opt_Out

Secondary output signal. Signal is derived from Sync_Out or from an internal

reference clock depending upon the choosen configuration.

14

GND

Ground

15

Ex_Ref_2

External Input Reference #2

16

GND

Ground

17

Ex_Ref_1

External Input Reference #1

18

Vcc

+5V dc supply