Finisar FCLF8520P2BTL Datový list stáhnout pdf (Strana 3)

FCLF8520P2BTL, FCLF8521P2BTL and FCLF8522P2BTL 1000BASE-T SFP Product SpecificationFinisar

II. +3.3V Volt Electrical Power Interface

The FCLF8520P2BTL, FCLF8521P2BTL and FCLF8522P2BTL have an input voltage range of 3.3 V +/- 5%. The 4 V

maximum voltage is not allowed for continuous operation.

Parameter Symbol Min Typ Max Units Notes/Conditions

Supply Current I

320 375 mA 1.2W max power over

full range of voltage

and temperature.

See caution note below

Input Voltage V

3.13 3.3 3.47 V Referenced to GND

Maximum Voltage V

max

4 V

Total Maximum Current

including Surge Current

surge

405 mA Hot plug above steady state

current. See caution note

below

Caution: Power consumption and surge current are higher than the specific values in the SFP MSA

Table 2, +3.3 Volt electrical power interface

III. Low-Speed Signals

MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals (see section VII, “Serial

Communication Protocol”). Both MOD_DEF(1) and MOD_DEF(2) must be pulled up to host_Vcc.

Parameter Symbol Min Max Units Notes/Conditions

SFP Output LOW V

0 0.5 V 4.7k to 10k pull-up to host_Vcc,

measured at host side of

connector

SFP Output HIGH V

host_Vcc -

0.5

host_Vcc +

0.3

V 4.7k to 10k pull-up to host_Vcc,

measured at host side of

connector

SFP Input LOW V

0 0.8 V 4.7k to 10k pull-up to Vcc,

measured at SFP side of

connector

SFP Input HIGH V

2 Vcc + 0.3 V 4.7k to 10k pull-up to Vcc,

measured at SFP side of

connector

Table 3: Low-speed signals, electrical characteristics

1 2 3 4 5 6 7

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