Data Sheet #: SG082

Page 7 of 16

Rev: 00

Date: 06/17/05

© Copyright 2005 The Connor-Winfield Corp.

Pin Description

Table 6

Pin #

Pin Name

Pin Information

Note

1

ENABLE/TRI-STATE

VCXO Enable. (Enable = 0, Disable = 1 = CMOS Outputs Tri-stated)

9.0

2

TCK

No Connection, Internal Factory Programming Input.

8.0

3

TDO

No Connection, Internal Factory Programming Input.

8.0

4

REF

A

CMOS Reference Frequency Input.

5

SEL

AB

Input Reference Select Pin. (REFA = 0, REFB = 1)

9.0

6

RESET

RESET. (RESET = 1)

9.0

7

REF

B

CMOS Reference Frequency Input.

8V

ee

Ground.

9FR

status

Free Run Status. (FR = 1)

10

V

cc

Supply Voltage relative to ground.

11

N/C

No Connection.

8.0

12

ALARM

Loss of Reference / Lock alarm. (Alarm = 1)

13

FR

Force Free Run. (Phase Lock = 0, Free Run = 1)

9.0

14

TDI

No Connection, Internal Factory Programming Input.

8.0

15

TMS

No Connection, Internal Factory Programming Input.

8.0

16

QN

LVPECL Complementary Output.

17

V

ee

Ground.

18

Q

LVPECL Output.

NOTES

8.0

Do not connect pin

9.0

Input pulled to ground

Ordering Information

SCG{XXXX}-{FFF.FFF}{M}

XXXX equals a specific model (4503)

FFF.FFF equals the Oscillator Output frequency (155.52)

M equals MHZ and is added to all part numbers

Example: To order an SCG4503 with an Oscillator Output of 155.52 MHz,

Order part number SCG4503-155.52M