fcm-8521-3 Finisar Corporation., fcm-8521-3 Datasheet - Page 3

• Manufacturer Part Number: fcm-8521-3
• Description: 1000base-t Copper Gbic Transceivers
• Manufacturer: Finisar Corporation.

Low-Speed Signals,
Electronic Characteristics
Parameter
GBIC Output LOW
GBIC Output HIGH
GBIC Input LOW
GBIC Input HIGH
FCM-8520/8521-3 1000BASE-T GBIC Product Specification
II.
The FCM-8520/8521-3 has an extended input voltage range of 4.5 to 5.5 V, compared to
the GBIC standard of 4.25 to 5.25 V. The 6V maximum voltage is not allowed for
continuous operation.
Note:
1.
III. Low-Speed Signals
RX_LOS is a TTL signals as described in Table 3 and 4. 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. For more detailed information, see sections 5.3.1 – 5.3.8 in the GBIC
Specification Rev. 5.5
 Finisar Corporation
Rev A, Feb 2003
+5 Volt Electrical Power
Interface
Parameter
Supply Current
Input Voltage
Maximum Voltage
Surge Current
+5V Volt Electrical Power Interface
Caution: Power consumption and inrush current are higher than the specified
values in the GBIC Specification Rev 5.5
Symbol
V
V
V
V
OH
1
OL
IH
IL
.
Table 3. Low-speed signals, electronic characteristics
Symbol
V
I
host_Vcc - 0.5 host_Vcc + 0.3
V
surge
I
max
s
cc
Table 2. +5 Volt electrical power interface
Min
0
0
2
Min
4.5
Vcc + 0.3
Typ
310
Max
5
0.5
0.8
1
.
Max
375
450
5.5
6
Units Notes/Conditions
V
V
V
V
Units Notes/Conditions
mA
mA
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
4.7k to 10k pull-up to Vcc,
measured at GBIC side of
connector
4.7k to 10k pull-up to Vcc,
measured at GBIC side of
connector
V
V
1.7W max power over
full range of voltage
and temperature.
See Note 1.
Referenced to GND.
Hot plug. See Note 1.
F i n i s a r
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