Finisar
Product Specification
CWDM Extended Temperature GBIC Transceiver
FTR-1621T-XX
PRODUCT FEATURES
•
•
•
•
•
•
•
•
•
•
All Metro data protocols from
622Mb/s to 2.7 Gb/s
Extended link budget with APD
receiver technology
Standard GBIC footprint
Cooled CWDM DFB
laser transmitter
Class 1 laser eye safety
Very low jitter
Metal enclosure for lower EMI
Extended voltage range
Low power dissipation
Extended operating temperature
range: -40°C to 85°C
APPLICATIONS
•
Metro Access Rings and Point-
to-Point networking for SONET,
Gigabit Ethernet and Fibre
Channel
Finisar’s FTR-1621T-XX CWDM Extended Temperature GBIC transceivers comply
with GBIC Specification Revision 5.5
1*
. They are compatible with Gigabit Ethernet as
specified in IEEE 802.3
2*
, single and double rate Fibre Channel FC-PH, PH2, PH3
3*
and
SONET specifications for OC-12/OC-48
4**
. Along with an extraordinary operation
range of –40
o
C to 85
o
C, the fiber link budget has been enhanced with an Avalanche
Photo Diode (APD) receiver.
Additional real time diagnostic functions are available via the 2-wire serial bus specified
for Module Definition “4” GBICs. For details, see Finisar Application Note AN-2030,
“Digital Diagnostic Monitoring Interface for Optical Transceivers”
5
. Even with all of
these innovative features, the transceiver is still compliant with the mechanical and
electrical interfaces defined in the GBIC interoperability standard.
© Finisar Corporation December 2004 Rev E
Page 1
FTR-1621T-XX WDM GBIC
Product Specification – December 2004
Finisar
PRODUCT SELECTION
FTR-1621T-XX
Wavelength
1470 nm
1490 nm
1510 nm
1530 nm
I.
Pin Out
Pin Name
RX_LOS
GND
GND
MOD_DEF(0)
MOD_DEF(1)
MOD_DEF(2)
TX_DISABLE
GND
GND
TX_FAULT
GND
-RX_DAT
+RX_DAT
GND
V
CC
V
CC
GND
+TX_DAT
-TX_DAT
GND
XX
47
49
51
53
Color Code Dot
Gray
Violet
Blue
Green
Wavelength
1550 nm
1570 nm
1590 nm
1610 nm
XX
55
57
59
61
Color Code Dot
Yellow
Orange
Red
Brown
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Sequence
2
2
2
2
2
2
2
2
2
2
1
1
1
1
2
2
1
1
1
1
Table 1. GBIC to host connector pin assignment
“Sequence” indicates the order in which pins make contact when the device is hot
plugged. Also see “Table 3: Signal Definitions” in the GBIC Specification Revision 5.5.
1
© Finisar Corporation December 2004 Rev E
Page 2
FTR-1621T-XX WDM GBIC
Product Specification – December 2004
Finisar
II.
Electrical Power Interface
Symbol
I
s
V
max
I
surge
V
cc
PSR
4.75
100
5.00
Min
Typ
280
Max
450
6
30
5.25
Units
mA
V
mA
V
mV
Notes/Conditions
Parameter
Supply Current
Maximum Voltage
Surge Current
Input Voltage
Power Supply Rejection
Above DC current level
for < 300 ms
Referenced to GND
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
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
1
.
Parameter
GBIC Output LOW
GBIC Output HIGH
GBIC Input LOW
Symbol
V
OL
Units Notes/Conditions
V
4.7k to 10k pull-up to host_Vcc,
measured at host side of connector
V
OH
host_Vcc - host_Vcc +
V
4.7k to 10k pull-up to host_Vcc,
0.5
0.3
measured at host side of connector
V
IL
0
0.8
V
4.7k to 10k pull-up to Vcc,
measured at GBIC side of
connector
V
IH
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
Min
0
Max
0.5
GBIC Input HIGH
© Finisar Corporation December 2004 Rev E
Page 3
FTR-1621T-XX WDM GBIC
Product Specification – December 2004
Finisar
Parameter
RX_LOS Assert Level
RX_LOS Deassert Level
RX_LOS Hysterisis
RX_LOS Assert Delay
RX_LOS Negate Delay
TX_DISABLE Assert Time
Symbol Min
--
-40
--
--
t_loss_on
t_loss_off
t_off
Typ
-36
-34
2.0
Max
-30
400
150
1500
Units
dBm
dBm
dB
µsec
µsec
µsec
µsec
µsec
TX_DISABLE Negate Time
t_on
6000
TX_DISABLE Reset Time
t_reset
10
Notes/Conditions
Measured on Finisar Eval Card
Measured on Finisar Eval Card
Measured on Finisar Eval Card
From detection of loss of signal
to assertion of RX_LOS
From detection of presence of
signal to negation of RX_LOS
Rising edge to TX_DISABLE to
fall of output signal below 10%
of nominal
Falling edge of TX_DISABLE
to rise of output signal above
90% of nominal
TX_DISABLE HIGH before
TX_DISABLE set LOW
Table 4. Low speed signal parameters
IV. High Speed Electrical Interface
All high-speed PECL signals are AC coupled internally.
Parameter
Data Input Voltage
Data Output Voltage
Duty Cycle
PECL rise/fall
Bit Error Rate
Tx Input Impedance
Rx Output Impedance
Symbol
V
in
V
out
--
T
r
,T
f
BER
Z
in
Z
out
Min
650
370
Typ
Max
2000
2000
150
10
-12
75
75
Units
mV
mV
%
psec
ohm
ohm
Notes/Conditions
PECL differential peak - peak
PECL differential peak - peak
20%-80% Differential
PRBS 2
23
- 1 test data pattern
Singled ended impedance
Singled ended impedance
50
Table 5. High speed electrical interface
© Finisar Corporation December 2004 Rev E
Page 4
FTR-1621T-XX WDM GBIC
Product Specification – December 2004
Finisar
V.
Optical Parameters
Min
(x-4)
Typ
(x+1)
Max
(x+6)
Units Notes/Conditions
nm
Over temperature -40
to 85 °C case
temperature.
See Note 1 below
Parameter
Symbol
TRANSMITTER CHARACTERISTICS
Transmitter Center Wavelength
λ
c
Side Mode Suppression Ratio
(SMSR)
Transmitter Optical Output Power
Transmitter Extinction Ratio
Transmitter Eye Opening
SMSR
P
out
OMI
--
30
-3
8.2
10
+2
dB
dBm Average power coupled
into single mode fiber
dB OC-48 conditions
%
OC-48 Eye Mask
Margin
dB
mUI
Transmitter Reflectance
Transmitter Jitter
RECEIVER CHARACTERISTICS
Optical Input Wavelength
Receiver Optical Input Power
(BER < 10
-9
w/ PRBS 2
23
- 1)
Receiver Optical Input Power
(BER < 10
-12
w/ PRBS 2
23
- 1)
Receiver Reflectance
Dispersion Penalty at 80km
R
TX
-20
75
Parameter per GR-253
3
section 5.6 for OC-48
λ
in
P
in
P
in
R
TX
1450
-28.0
-26.0
1620
-7
-7
-27
2.5
Table 6. Optical parameters
nm
dBm 2.5Gb/s w/
PRBS 2
23
-1, measured
dBm 2.5Gb/s w/
PRBS 2
23
-1, calculated
dB
dB See note 4
Note 1:
The Transmitter Center Wavelength “x” is as specified by the customer. The current available
wavelengths are: 1470, 1490, 1510, 1530, 1550, 1570, 1590, and 1610 nm. Please see the “Product
Selection” section on page 2.
Note 2:
Parameters are specified over temperature and at end of life unless otherwise noted.
Note 3:
All parameters are measured on a Finisar GBIC Evaluation Card unless otherwise noted.
Note 4:
Dispersion penalty measured in loop back. Data rate and pattern used same as specified for
Optical Input Power. Measured at BER= 10
-10
. Fiber used is SMF-28. Exact dispersion (ps/nm) will
vary depending on wavelength of device under test.
© Finisar Corporation December 2004 Rev E
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