1.25Gbps Spring-latch SFP Transceiver

22dB/30dB Min. link budget, RoHS compliant

June 13, 2007

Fiberxon Proprietary and Confidential, Do Not Copy or Distribute

Page 5 of 12

Fault

2.0

Vcc+0.3

V

TX Fault

Normal

0

0.8

V

TX Disable Assert Time

t_off

10

µs

Receiver

Centre Wavelength

1270

1620

nm

8

Receiver Sensitivity

-30

dBm

9

Receiver Overload

-9

dBm

LOS De-Assert

-31

dBm

LOS Assert

-45

dBm

LOS Hysteresis

0.5

4.5

dB

Differential Data Output Swing

400

1200

mV

11

High

2.0

Vcc+0.3

V

LOS

Low

0

0.8

V

LOS Assert Time

100

µs

LOS De-Assert Time

100

µs

Notes:

1. “x” can be specified by the customer. The current available wavelength are: 1431nm, 1451nm, 1471nm,

1491nm, 1511nm, 1531nm, 1551nm, 1571nm, 1591nm, 1611nm.

2. The optical power is launched into 9/125 SMF.

3. 20%-80%, unfiltered, measured with a PRBS 2

4. Measured with a PRBS 2

sum of input total jitter in actual application.

5. Measured with a PRBS 2

6. CML logic, internally AC coupled.

7. If Pin 3 (TX Disable) is left open, TX is disabled.

8. The 1611nm signal can also be received while the sensitivity is degraded.

9. Worst-case condition, measured with a PRBS 2

×

10

10. It is for 100km transmission over G.652 SMF, measured with a PRBS 2

better than or equal to 1×10

11. CML logic, internally AC coupled.

EEPROM Information

The SFP MSA defines a 256-byte memory map in EEPROM describing the transceiver’s capabilities,

standard interfaces, manufacturer, and other information, which is accessible over a 2 wire serial interface at

the 8-bit address 1010000X (A0h). The memory contents refer to Table 6.

Table 6 - EEPROM Serial ID Memory Contents (A0h)

Addr.

Field Size

(Bytes)

Name of Field

Hex

Description

0

1

Identifier

03

SFP

1

1

Ext. Identifier 04

MOD4