FTR-1621T-XX WDM GBIC

Product Specification – December 2004

F i n i s a r

© Finisar Corporation December 2004 Rev E

Page 3

II.

Electrical Power Interface

III. Low Speed Signals

RX_LOS, TX_DISABLE, and TX_FAULT are TTL signals as described in Table 3.

MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA) are open drain CMOS signals (see

section VIII, “Serial Communication Protocol”). Both MOD_DEF(1) and MOD_DEF(2)

must be pulled up to host_Vcc. Note – MOD_DEF(0) is grounded inside the GBIC to

indicate the correct mode of operation.

For more detailed information, see sections 5.3.1 – 5.3.8 in the GBIC Specification Rev.

5.5

Parameter

Symbol

Min

Typ

Max

Units

Notes/Conditions

Supply Current

280

450

mA

Maximum Voltage

6

V

Surge Current

30

mA

Above DC current level

for < 300 ms

Input Voltage

4.75

5.00

5.25

V

Referenced to GND

Power Supply Rejection

PSR

100

mV

See Note 1. Peak to Peak

Table 2. Electrical power interface

Note 1: Receiver sensitivity is compliant with power supply sinusoidal of 20 Hz to 1.5Mhz up to specified

value applied through the recommended power supply filtering network

Parameter

Symbol

Min

Max

Units Notes/Conditions

GBIC Output LOW

0

0.5

V

4.7k to 10k pull-up to host_Vcc,

measured at host side of connector

GBIC Output HIGH

host_Vcc -

0.5

host_Vcc +

0.3

V

4.7k to 10k pull-up to host_Vcc,

measured at host side of connector

GBIC Input LOW

0

0.8

V

4.7k to 10k pull-up to Vcc,

measured at GBIC side of

connector

GBIC Input HIGH

2

Vcc + 0.3

V

4.7k to 10k pull-up to Vcc,

measured at GBIC side of

connector

Table 3. Low speed signals – electronic characteristics