HFBR-5208AM 查看數據表（PDF） - HP => Agilent Technologies

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HFBR-5208AM

Agilent HFBR/HFCT-5208M 1 x 9 Fiber Optic Transceivers for 622 Mb/s ATM/SONET/SDH Applications

HP => Agilent Technologies 

1 = VEER

2 = RD

3 = RD

4 = SD

5 = VCCR

6 = VCCT

7 = TD

8 = TD

9 = VEET

N/C

TOP VIEW

N/C

N/C = NO INTERNAL CONNECTION

(MOUNTING POSTS) - CONNECT

TO CHASSIS GROUND OR LEAVE

FLOATING, DO NOT CONNECT TO

SIGNAL GROUND.

Table 1. Pinout Table

Pin Symbol

Mounting Studs

1

VEER

2

RD+

3

RD-

4

SD

Functional Description

The mounting studs are provided for transceiver mechanical attachment to the circuit boards,

they are embedded in the metalized plastic housing and are not connected to the transceiver

internal circuit. They should be soldered into plated-through holes on the printed circuit board

and not connected to signal ground.

Receiver Signal Ground

Directly connect this pin to receiver signal ground plane. Receiver VEER and transmitter VEET

can connect to a common circuit board ground plane.

Receiver Data Out

Terminate this high-speed, differential, PECL output with standard PECL techniques at the

follow-on device input pin.

Receiver Data Out Bar

Terminate this high-speed, differential, PECL output with standard PECL techniques at the

follow-on device input pin.

Signal Detect

Normal input optical signal levels to the receiver result in a logic "1" output (VOH).

Low input optical signal levels to the receiver result in a fault condition indication shown by a

logic "0" output (VOL).

If Signal Detect output is not used, leave it open-circuited.

5

VCCR

6

VCCT

7

TD-

8

TD+

9

VEET

This Signal Detect output can be used to drive a PECL input on an upstream circuit, such as,

Signal Detect input or Loss of Signal-bar.

Receiver Power Supply

Provide +5 V dc via the recommended receiver VCCR power supply filter circuit.

Locate the power supply filter circuit as close as possible to the VCCR pin.

Transmitter Power Supply

Provide +5 V dc via the recommended transmitter VCCT power supply filter circuit.

Locate the power supply filter circuit as close as possible to the VCCT pin.

Transmitter Data In Bar

Terminate this high-speed, differential, Transmitter Data input with standard PECL techniques

at the transmitter input pin.

Transmitter Data In

Terminate this high-speed, differential, Transmitter Data input with standard PECL techniques

at the transmitter input pin.

Transmitter Signal Ground

Directly connect this pin to the transmitter signal ground plane. Transmitter VEET and receiver

VEER can connect to a common circuit board ground plane.

9

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