ftlf1428p2bnv Finisar Corporation., ftlf1428p2bnv Datasheet - Page 2

• Manufacturer Part Number: ftlf1428p2bnv
• Description: Gigabit Rohs Compliant Long-wavelength Transceiver
• Manufacturer: Finisar Corporation.

FTLF1428P2BNV Preliminary Product Specification – July 2008
Notes:
1. Circuit ground is internally isolated from chassis ground.
2. T
3. Laser output disabled on T
4. Should be pulled up with 4.7k – 10kohms on host board to a voltage between 2.0V and 3.6V.
5. Rate select can also be set through the 2-wire bus in accordance with SFF-8472 v. 10.2. Rx Rate
6. LOS is open collector output. Should be pulled up with 4.7k – 10kohms on host board to a voltage
© Finisar Corporation July 11, 2008 Rev. B1 Preliminary
Pin
10
11
12
13
14
15
16
17
18
19
20
1
2
3
4
5
6
7
8
9
I.
the host board if intended for use. Pull up voltage should be between 2.0V to Vcc + 0.3V. A high
output indicates a transmitter fault caused by either the TX bias current or the TX output power
exceeding the preset alarm thresholds. A low output indicates normal operation. In the low state, the
output is pulled to <0.8V.
MOD_ABS pulls line low to indicate module is plugged in.
Select is set at Bit 3, Byte 110, Address A2h. Tx Rate Select is set at Bit 3, Byte 118, Address A2h.
Note: writing a “1” selects maximum bandwidth operation. Rate select is the logic OR of the input
state of Rate Select Pin and 2-wire bus.
between 2.0V and 3.6V. Logic 0 indicates normal operation; logic 1 indicates loss of signal.
FAULT
MOD_ABS
Symbol
is an open collector/drain output, which should be pulled up with a 4.7k – 10k Ohms resistor on
T
SDA
SCA
V
V
RD+
V
V
V
V
LOS
V
TD+
V
Pin Descriptions
RS0
RS1
RD-
T
TD-
FAULT
CCR
CCT
EET
DIS
EER
EER
EER
EET
EET
Transmitter Ground (Common with Receiver Ground)
Transmitter Fault.
Transmitter Disable. Laser output disabled on high or open.
2-wire Serial Interface Data Line (MOD-DEF2)
2-wire Serial Interface Clock (MOD-DEF1)
Module Absent, connected to V
Loss of Signal indication. Logic 0 indicates normal operation.
Receiver Ground (Common with Transmitter Ground)
Receiver Ground (Common with Transmitter Ground)
Receiver Inverted DATA out. AC Coupled
Receiver Non-inverted DATA out. AC Coupled
Receiver Ground (Common with Transmitter Ground)
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground (Common with Receiver Ground)
Transmitter Non-Inverted DATA in. AC Coupled.
Transmitter Inverted DATA in. AC Coupled.
Transmitter Ground (Common with Receiver Ground)
Tx Rate Select:
Open or Low =
Rx Rate Select:
Open or Low =
DIS
>2.0V or open, enabled on T
High =
High =
2.125 or 4.25 Gb/s Fibre Channel (Low Bandwidth)
8.5 Gb/s Fibre Channel (High Bandwidth)
2.125 or 4.25 Gb/s Fibre Channel (Low Bandwidth)
8.5 Gb/s Fibre Channel (High Bandwidth)
Name/Description
EET
or V
DIS
EER
<0.8V.
F i n i s a r
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