GS9015ACPJ View Datasheet(PDF) - Gennum -> Semtech

Part Name

Description

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GS9015ACPJ

GENLINX™ GS9015A Serial Digital Reclocker

Gennum -> Semtech 

GS9015A PIN DESCRIPTIONS cont.

PIN NO SYMBOL TYPE

DESCRIPTION

18

19

20,21

22,23

24,25

26

27

28

VCC2

CD

Output

Power Supply. Most positive power supply connection. (VCO, MUX, Standard Select).

Carrier Detect. Open collector output which goes HIGH when a signal is present at either the Serial

Data inputs or the Direct Digital inputs. This output is used in conjunction with the GS9000B or GS9000S

in the Automatic Standards Select Mode to disable the 2 bit standard select counter. This pin should

see a low AC impedance (e.g. 1nF to AC Gnd)

SS0, SS1 Inputs

Standard Select Inputs. TTL inputs to the 2:4 multiplexer used to select one of four VCO centre

frequency setting resistors (RVCO0 - RVCO3). When both SS0 and SS1 are LOW, RVCO0 is selected.

When SS0 is HIGH and SS1 is LOW, RVCO1 is selected. When SS0 is LOW and SS1 is HIGH, RVCO2

is selected and when both SS0 and SS1 are HIGH, RVCO3 is selected. These pins should see a

low AC impedance (e.g. 1nF to AC Gnd)

SCO/SCO Outputs

SDO/SDO Outputs

VCC3

VEE2

VEE1

Serial Clock Outputs (inverse and true). Pseudo-ECL differential outputs of the extracted serial clock.

These outputs require a 390 Ω pull-down resistors to VEE.

Serial Data Outputs (inverse and true). Pseudo-ECL differential outputs of the regenerated serial data.

These outputs require a 390 Ω pull-down resistors to VEE.

Power Supply. Most positive power supply connection. (ECL Outputs).

Power Supply. Most negative power supply connection. (Phase Detector, Carrier Detect)

Power Supply. Most negative power supply connection.

INPUT / OUTPUT CIRCUITS

VCC

+ 1.2V

-

2k

2k

1k

1k

DDI

Pin 5

DDI

Pin 6

380µA

+

- 1.6V

Fig. 3 Pins 1, 5 and 6

5

520 - 99 - 05

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