HFBR-5204 Ver la hoja de datos (PDF) - HP => Agilent Technologies

Número de pieza

componentes Descripción

Fabricante

HFBR-5204

ATM Multimode Fiber Transceivers for SONET OC-3/SDH STM-1 in Low Cost 1x9 Package Style

HP => Agilent Technologies 

,

NO INTERNAL CONNECTION

,

NO INTERNAL CONNECTION

HFBR-520X

TOP VIEW

Rx

Rx Tx

Tx

VEE RD RD SD VCC VCC TD TD VEE

1

2

3

4

5

6

7

8

9

C1

C2

VCC

L1 L2

R2 R3

TERMINATION


,,
,

,
 AT PHY

DEVICE

INPUTS

VCC

R5 R7

C6

R6

R8

C3

C4

VCC FILTER

AT VCC PINS

TRANSCEIVER

R9

R10

R1

R4

C5

TERMINATION

AT TRANSCEIVER

INPUTS

RD RD SD

VCC

TD

TD

NOTES:

THE SPLIT-LOAD TERMINATIONS FOR ECL SIGNALS NEED TO BE LOCATED AT THE INPUT

OF DEVICES RECEIVING THOSE ECL SIGNALS. RECOMMEND 4-LAYER PRINTED CIRCUIT

BOARD WITH 50 OHM MICROSTRIP SIGNAL PATHS BE USED.

R1 = R4 = R6 = R8 = R10 = 130 OHMS.

R2 = R3 = R5 = R7 = R9 = 82 OHMS.

C1 = C2 = C3 = C5 = C6 = 0.1 µF.

C4 = 10 µF.

L1 = L2 = 1 µH COIL OR FERRITE INDUCTOR.

Figure 7. Recommended Decoupling and Termination Circuits.

Shipping Container

The transceiver is packaged in a

shipping container designed to

protect it from mechanical and

ESD damage during shipment or

storage.

Board Layout - Decoupling

Circuit and Ground Planes

It is important to take care in the

layout of your circuit board to

achieve optimum performance

from these transceivers. Figure 7

provides a good example of a

schematic for a power supply

decoupling circuit that works well

with these parts. It is further

recommended that a contiguous

ground plane be provided in the

circuit board directly under the

transceiver to provide a low

inductance ground for signal

return current. This recommen-

dation is in keeping with good

high frequency board layout

practices.

Board Layout - Hole Pattern

The Hewlett-Packard transceiver

complies with the circuit board

“Common Transceiver Footprint”

hole pattern defined in the

original multisource

announcement which defined the

1x9 package style. This drawing

is reproduced in Figure 8 with the

addition of ANSI Y14.5M

compliant dimensioning to be

used as a guide in the mechanical

layout of your circuit board.

113

Share Link: