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Agere Systems Inc.

Data Sheet

1345-Type Receiver with

January 2000

Clock Recovery and Data Retiming

Absolute Maximum Ratings

Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are abso-

lute stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess

of those given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended

periods can adversely affect device reliability.

Parameter

Symbol

Min

Max

Unit

Supply Voltage

05.5

V

Operating Case Temperature Range

–40

85

°C

Storage Case Temperature Range

–40

85

°C

Lead Soldering Temperature/Time

—

—

250/10

°C/s

Operating Wavelength Range

λ

1.1

1.6

µm

Minimum Fiber Bend Radius

—

1.0 (25.4)

—

in. (mm)

Pin Information

* Pins designated as no user connection are not connected inter-

nally. However, to allow for future functional upgrades, it is recom-

mended that the user not make any connections to these pins.

absence of a minimum acceptable level of optical input. A logic

high on the FLAG output indicates the presence of a valid optical

signal.

Mounting and Connections

The pigtail consists of a 39 in. ± 4 in. (1 m ± 10 cm),

62.5

µm core/125 µm cladding multimode fiber. The

standard fiber has a 0.036 in. (914 µm) diameter tight-

buffered outer-jacket. The minimum fiber bending

radius during operation is 1.0 in. (25.4 mm).

Electrostatic Discharge

CAUTION: This device is susceptible to damage

as a result of electrostatic discharge

(ESD). Take proper precautions during

both handling and testing. Follow guide-

lines such as

Although protection circuitry is designed into the

device, take proper precautions to avoid exposure to

ESD.

Agere Systems Inc. employs a human-body model

(HBM) for ESD susceptibility testing and protection-

design evaluation. ESD voltage thresholds are depen-

dent on the critical parameters used to define the

model. A standard HBM (resistance = 1.5 k

Ω capaci-

tance = 100 pF) is widely used and, therefore, can be

used for comparison purposes. The HBM ESD thresh-

old established for the 1345 receiver is ±1000 V.

Receiver Processing

The 1345-Type receiver devices can withstand normal

wave-soldering processes. The complete receiver

module is not hermetically sealed; therefore, it should

not be immersed in or sprayed with any cleaning solu-

tion or solvents. The process cap and fiber pigtail jacket

can deform at temperatures greater than 85 °C. The

receiver pins can be wave-soldered at maximum tem-

perature of 250 °C for 10 seconds.

Pin

Name

Pin

Name

1

Ground

20

No User Connection*

2

Ground

19

No User Connection*

3

Ground

18

No User Connection*

4

CLOCK

17

No User Connection*

5CLOCK

16

Ground

6

Ground

15

Ground

7DATA

14

8

Ground

13

Ground

9DATA

12

10

No Internal

Connection or

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