© Finisar Corporation August 27, 2004 Rev. B Page 1
Product Specification
Single Mode 1300 nm
1.0625 Gbit/s Fibre Channel 1.3 Gigabit Ethernet 1x9 Transceiver
V23826-K15-Cxx
V23826-K15-Cxxx
File: 1167
PRODUCT FEATURES
• Compliant with Fibre Channel and Gigabit
Ethernet standard
• Meets mezzanine standard height of
9.8 mm
• Compact integrated transceiver unit with
– MQW laser diode transmitter
– InGaAs PIN photodiode receiver
– Duplex SC receptacle
• Class 1 FDA and IEC laser safety
compliant
• FDA Accession No. 9520890-19
• Single power supply (5 V or 3.3 V)
• Signal detect indicator (PECL and TTL
version)
• PECL differential inputs and outputs
• Process plug included
• Input Signal Monitor (DC/DC-Version)
• Wave solderable and washable with
process plug inserted
• For distances of up to 10 km on single
mode fiber, and up to 550 m on multimode
fiber (use offset jumper as specified in
IEEE 802.3)
APPLICATIONS
• 1.25 Gbit/s 1000 Base-LX10 Ethernet
• 1.063 Gbit/s 100-SM-LC-L Fibre Channel
For PRODUCT SELECTION see next page.
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 2
PRODUCT SELECTION
Part Number Voltage Signal
Detect
Input Output
V23826-K15-C313 3.3 V PECL AC DC
V23826-K15-C53 5 V TTL AC AC
V23826-K15-C353 3.3 V
V23826-K15-C631)
Notes:
1) Standard version.
5 V PECL DC DC
V23826-K15-C3631) 3.3 V
V23826-K15-C73 5 V PECL AC AC
V23826-K15-C373 3.3 V
Add Suffix to P/N Shield Options
-C3 Metallized cover, forward springs
-D3 Metallized cover, backward springs
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 3
Pin Configuration
Figure 1
Pin Description
Pin
No.
Symbol Level/Logic Function Description
1VEERx Power Supply Rx Ground Negative power supply,
normally ground
2 RD+ PECL Output Rx Output Data Receiver output data
3 RD– Inverted receiver output data
4 SD PECL Output
active high
(TTL C53/353)
Rx Signal
Detect
High level on this output shows
there is an optical signal
5VCCRx Power Supply Rx 3.3 V/5 V Positive power supply, 3.3 V/5 V
6VCCTx Tx 3.3 V/5 V
7 TD– PECL Input Tx Input Data Inverted transmitter input data
8 TD+ Transmitter input data
9VEETx Power Supply Tx Ground Negative power supply,
normally ground
S1/
S2
Mech. Support Stud Pin Not connected
123456789
Rx
Tx
Top view
File: 1340
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 4
Description
The Finisar single mode transceiver is based on and compliant to the Physical Medium
Depend (PMD) sublayer and baseband medium, type 1000 Base-LX (long wavelength)
as specified in IEEE 802.3 and Fibre Channel FC-PI Rev. 13 100-SM-LC-L.
The appropriate fiber optic cable is 9 µm (mode field diameter) single mode fiber (up to
10 km) with Duplex SC connector.
The Finisar single mode transceiver is a single unit comprised of a transmitter, a
receiver, and an SC receptacle. This design frees the customer from many alignment
and PC board layout concerns. The module is designed for low cost LAN, WAN and
Gigabit Ethernet applications. It can be used as the network end device interface in
mainframes, workstations, servers, and storage devices, and in a broad range of
network devices such as bridges, routers, intelligent hubs, and local and wide area
switches.
This transceiver operates at 1.0625 and 1.3 Gbit/s from a single power supply (+5 V or
3.3 V). The full differential data inputs and outputs are PECL compatible.
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 5
Functional Description
This transceiver is designed to transmit serial data via single mode or multimode cable.
Figure 2 Functional Diagram
The receiver component converts the optical serial data into PECL compatible electrical
data (RD+ and RD–). The Signal Detect (SD, active high) shows whether an optical
signal is present.
The transmitter converts electrical PECL compatible serial data (TD+ and TD–) into
optical serial data.
The following versions are available:
1 AC/DC Transceiver: Tx is AC coupled. Differential 100 Ω load. Rx has standard PECL
output and is DC coupled.
2 AC/AC TTL Transceiver: Tx and Rx are AC coupled. Tx has differential 100 Ω load.
Signal Detect is TTL compatible.
3 DC/DC Transceiver: Standard PECL inputs and outputs Tx and Rx are DC coupled.
This version contains an Input Signal Monitor (ISM) which switches off the transceiver
if a continuous low level is applied at Data Input.
4 AC/AC PECL Transceiver: Tx and Rx are AC coupled. Tx has differential 100 Ω load.
Signal Detect is PECL compatible.
Laser
Driver Laser
Monitor
Power
Control
Receiver
SD
TD+
RD+
RD−
TD−
Laser
Coupling Unit
Rx
Coupling Unit
e/o
o/e
* DC/DC Version only
o/e
LEN
ISM *
File: 1360
Signal Monitor and
Automatic Shut-Down
Single
Mode
Fiber
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 6
The transmitter contains a laser driver circuit that drives the modulation and bias current
of the laser diode. The currents are controlled by a power control circuit to guarantee
constant output power of the laser over temperature and aging.
The power control uses the output of the monitor PIN diode (mechanically built into the
laser coupling unit) as a controlling signal, to prevent the laser power from exceeding the
operating limits.
Single fault condition is ensured by means of an integrated automatic shutdown circuit
that disables the laser when it detects transmitter failures. A reset is only possible by
turning the power off, and then on again.
The transceiver contains a supervisory circuit to control the power supply. This circuit
generates an internal reset signal whenever the supply voltage drops below the reset
threshold. It keeps the reset signal active for at least 140 milliseconds after the voltage
has risen above the reset threshold. During this time the laser is inactive.
Regulatory Compliance
Feature Standard Comments
ESD:
Electrostatic Discharge to the
Electrical Pins
MIL-STD 883D
Method 3015.7
JESD22-A114-B
Class 1 (> 1000 V) HBM
Class 1C
Immunity:
Electrostatic Discharge
(ESD) to the Duplex SC
Receptacle
EN 61000-4-2
IEC 61000-4-2
Discharges of ±15 kV with an air
discharge probe on the
receptacle cause no damage.
Immunity:
Radio Frequency
Electromagnetic Field
EN 61000-4-3
IEC 61000-4-3
With a field strength of 3 V/m,
noise frequency ranges from
10 MHz to 1 GHz. No effect on
transceiver performance
between the specification limits.
Emission:
Electromagnetic Interference
(EMI)
FCC 47 CFR Part 15
Class B
EN 55022 Class B
CISPR 22
Noise frequency range:
30 MHz to 18 GHz;
Margins depend on PCB layout
and chassis design.
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 7
Technical Data
Exceeding any one of these values may destroy the device immediately.
Absolute Maximum Ratings
Parameter Symbol Limit Values Unit
min. max.
Package Power Dissipation1)
Notes:
1) For VCC–VEE (min., max.). 50% duty cycle. The supply current does not include the load drive current of the
receiver output.
1.5 W
Supply Voltage 3.3 V
5V
VCC–VEE 4
6
V
Data Input Levels (PECL) VCC+0.5 V
Differential Data Input Voltage 2.5 V
Operating Ambient Temperature 0 70 °C
Storage Ambient Temperature –40 85 °C
Soldering Conditions Temp/Time
(MIL-STD 883C, Method 2003)
250/5.5 °C/s
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 8
The electro-optical characteristics described in the following tables are only valid for use
under the recommended operating conditions.
Recommended Operating Conditions
Parameter Symbol Values Unit
min. typ. max.
Ambient Temperature TAMB 070°C
Power Supply Voltage 3.3 V
5 V
VCC–VEE 3.1
4.75
3.3
5
3.5
5.25
V
Supply Current1) 3.3 V
5 V
ICC 230
270
mA
Transmitter
Data Input High Voltage DC/DC VIH–VCC –1165 –880 mV
Data Input Low Voltage DC/DC VIL–VCC –1810 –1475 mV
Data Input Differential Voltage2)
AC/DC, AC/AC TTL,
AC/AC PECL
VDIFF 300 800 mV
Input Data Rise/Fall Time
10% - 90%
tR, tF100 750 ps
Receiver
Input Center Wavelength λC1270 1355 nm
Notes:
1) For VCC–VEE (min., max.) 50% duty cycle. The supply current does not include the load drive current of the
receiver output.
2) Peak to peak voltage of one input.
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 9
Transmitter Electro-Optical Characteristics
Parameter Symbol Values Unit
min. typ. max.
Launched Power (Average)1) PO–11 –3 dBm
Center Wavelength λC1270 1355 nm
Spectral Width (RMS) σl4nm
Relative Intensity Noise RIN –120 dB/Hz
Extinction Ratio (Dynamic) ER 9 dB
Reset Threshold2) 5 V
3.3 V
VTH 3.5
2.7
V
Reset Time Out2) tRES 15 22 35 ms
Notes:
1) Into single mode fiber, 9 µm diameter.
2) Laser power is shut down if power supply is below VTH and switched on if power supply is above VTH after tRES.
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 10
Receiver Electro-Optical Characteristics
Parameter Symbol Values Unit
min. typ. max.
Sensitivity (Average Power)1) PIN –22 –20 dBm
Saturation (Average Power) PSAT –3 dBm
Signal Detect Assert Level2) PSDA –20 dBm
Signal Detect Deassert Level3) PSDD –30 dBm
Signal Detect Hysteresis PSDA
–PSDD
1.5 dB
Signal Detect Assert Time tASS 100 µs
Signal Detect Deassert Time tDAS 350 µs
Output Low Voltage4) VOL–VCC –1950 –1600 mV
Output High Voltage4) VOH–VCC –1025 –720 mV
Signal Detect Output Low
Voltage AC/AC TTL5) VSDL 0.5 V
Signal Detect Output High
Voltage AC/AC TTL5) VSDH 2V
Data Output
Differential Voltage6) VDIFF 0.5 0.9 V
Output Data Rise/Fall Time,
20% - 80%
tR, tF375 ps
Return Loss of Receiver ORL 12 dB
Notes:
1) Minimum average optical power at which the BER is less than 1x10E–12 or lower. Measured with a 27–1 NRZ
PRBS and ER = 9 dB. Output of single mode fiber 9 µm diameter.
2) An increase in optical power above the specified level will cause the Signal Detect output to switch from a low
state to a high state.
3) A decrease in optical power below the specified level will cause the Signal Detect to change from a high state
to a low state.
4) DC/DC, AC/DC for data. DC/DC, AC/DC, AC/AC PECL for Signal Detect. PECL compatible. Load is 50 Ω into
VCC–2 V for data, 500 Ω to VEE for Signal Detect. Measured under DC conditions. For dynamic measurements
a tolerance of 50 mV should be added. VCC = 3.3 V/5 V. TAMB = 25°C.
5) Max. output current high: –0.4 mA (drive current), max. output current low: +2 mA (sink current).
6) AC/AC for data. Load 50 Ω to GND or 100 Ω differential. For dynamic measurement a tolerance of 50 mV
should be added.
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 11
Eye Safety
This laser based single mode transceiver is a Class 1 product. It complies with IEC
60825-1/A2: 2001 and FDA performance standards for laser products (21 CFR 1040.10
and 1040.11) except for deviations pursuant to Laser Notice 50, dated July 26, 2001.
CLASS 1 LASER PRODUCT
To meet laser safety requirements the transceiver shall be operated within the Absolute
Maximum Ratings.
Note: All adjustments have been made at the factory prior to shipment of the devices.
No maintenance or alteration to the device is required.
Tampering with or modifying the performance of the device will result in voided
product warranty.
Failure to adhere to the above restrictions could result in a modification that is
considered an act of “manufacturing”, and will require, under law, recertification
of the modified product with the U.S. Food and Drug Administration (ref. 21 CFR
1040.10 (i)).
Figure 3 Required Labels
Figure 4 Laser Emission
Laser Emission Data
Wavelength 1310 nm
Maximum total output power
(as defined by IEC: 7 mm aperture at 14 mm distance)
15.6 mW / 11.9 dBm
Beam divergence (full angle) / NA (half angle) 11° / 0.1 rad
Class 1 Laser Product
IEC
Complies with 21 CFR
1040.10 and 1040.11
FDA
File: 1401
Laser
Emission Tx
Top view
Rx File: 1339
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 12
Application Notes
Gigabit transceivers and matching circuits are high frequency components and shall be
terminated as recommended in the application notes for proper EMI performance.
Electromagnetic emission may be caused by these components.
To prevent emissions it is recommended that cutouts for the fiber connectors be
designed as small as possible.
It is strongly recommended that the Tx plug and the Rx plug be separated with a bar that
divides the duplex SC opening.
If shielded parts are employed, they should be in proper contact with the bezel (back
plane).
Since the shield is galvanically isolated from signal ground it is strongly recommended
to prevent any contact between shield and the circuitry i.e. even any ground connection
on the pcb may be harmful to EMI performance.
In cases where EMI performance becomes critical it has proven to be helpful when using
SC-plugs with less metal parts inside (as Finisar fibers).
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 13
Single Mode 1300 nm Gigabit Ethernet/Fibre Channel 1x9 Transceiver,
DC/DC Version
Figure 5
Values of R1/2/3/4 may vary as long as proper 50 Ω termination to VEE or 100 Ω
differential is provided. The power supply filtering is required for good EMI performance.
Use short tracks from the inductor L1/L2 to the module VCCRx/VCCTx. We recommend a
GND plane under the module for getting good EMI performance.
The transceiver contains an automatic shutdown circuit. Reset is only possible if the
power is turned off, and then on again. (VCCTx switched below VTH).
Application Board available on request.
The stud pins S1 and S2 are not connected.
Laser
Driver
Signal
Detect
Limiting
Amplifier
Pre-
Amp RD
-
RD+
Tx+
Tx
-
RD
-
ECL/PECL
Driver
Receiver
PLL etc.
1x9 Transceiver
1
2
3
4
5
6
7
8
9
SD to upper level
VEETx
TD+
TD−
VCCTx
VCCRx
SD
RD+
RD−
VEERx
VCC
L1
L2
C2
C1
R9
R5
R6
R3
R4
R1
R2
R7
R8
R11
R10
C3
C4
C5
C6
C7
RD+
File: 1397
C1/2/3
C4/5/6/7
L1/2
R5/6
R7/8
(depends on SerDes chip used)
R9
= 4.7 µF
= 10 nF
= 1 µH
= 300 Ω (5 V)
= 150 Ω (3.3 V)
= 127 Ω (5 V)
= 82 Ω (3.3 V)
= 510 Ω (5 V)
= 270 Ω (3.3 V)
R10/11
(depends on SerDes chip used)
Place R1/2/3/4 close to SerDes chip, depends on SerDes chip
used, see application note of SerDes supplier.
Place R7/8/10/11 close to 1x9 transceiver.
1)
Design criterion of the capacitor used is the resonant
frequency and its value must be in the order of the nominal
data rate. Short trace lengths are mandatory.
= 82 Ω (5 V)
= 127 Ω (3.3 V)
VCC SerDes
5 V / 3.3 V
VCC
5 V / 3.3 V Serializer/
Deserializer
Gigabit
Transceiver
Chip
1)
1)
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 14
Single Mode 1300 nm Gigabit Ethernet/Fibre Channel 1x9 Transceiver,
AC/DC Version
Figure 6
Values of R1/2/3/4 may vary as long as proper 50 Ω termination to VEE or 100 Ω
differential is provided. The power supply filtering is required for good EMI performance.
Use short tracks from the inductor L1/L2 to the module VCCRx/VCCTx. We recommend a
GND plane under the module for getting good EMI performance.
The transceiver contains an automatic shutdown circuit. Reset is only possible if the
power is turned off, and then on again. (VCCTx switched below VTH).
Application Board available on request.
The stud pins S1 and S2 are not connected.
100 Ω
VCC SerDes
5 V / 3.3 V
Laser
Driver
Signal
Detect
Limiting
Amplifier
Pre-
Amp RD
-
RD+
Tx+
Tx
-
RD
-
ECL/PECL
Driver
Receiver
PLL etc.
1x9 Transceiver
1
2
3
4
5
6
7
8
9
SD to upper level
VEETx
TD+
TD−
VCCTx
VCCRx
SD
RD−
RD+
VEERx
VCC
R8
L1
L2
R9
R3
R4
R1
R2
C3
VCC
5 V / 3.3 V
RD+
R7
Place R1/2/3/4/7/8 close to SerDes chip,
depends on SerDes chip used,
see application note of SerDes supplier.
1)
Design criterion of the capacitor used is the
resonant frequency and its value must be
in the order of the nominal data rate.
Short trace lengths are mandatory.
C2
C1
1)
1)
Serializer/
Deserializer
Gigabit
Transceiver
Chip
File: 1395
C1/2/3
C4/5
L1/2
R5/6
R9
= 4.7 µF
= 10 nF
= 1 µH
= 270 Ω (5 V)
= 150 Ω (3.3 V)
= 510 Ω (5 V)
= 270 Ω (3.3 V)
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 15
Single Mode 1300 nm Gigabit Ethernet/Fibre Channel 1x9 Transceiver,
AC/AC TTL and AC/AC PECL Versions
Figure 7
The power supply filtering is required for good EMI performance. Use short tracks from
the inductor L1/L2 to the module VCCRx/VCCTx. We recommend a GND plane under the
module for getting good EMI performance.
The transceiver contains an automatic shutdown circuit. Reset is only possible if the
power is turned off, and then on again. (VCCTx switched below VTH).
Application Board available on request.
The stud pins S1 and S2 are not connected.
100 Ω
VCC SerDes
5 V / 3.3 V
Laser
Driver
Signal
Detect
Limiting
Amplifier
Pre-
Amp RD
-
RD+
Tx+
Tx
-
RD
-
ECL/PECL
Driver
Receiver
PLL etc.
1x9 Transceiver
1
2
3
4
5
6
7
8
9
SD to upper level
VEETx
TD+
TD−
VCCTx
VCCRx
SD
RD−
RD+
VEERx
VCC
R8
L1
L2
R9
R3
R4
R1
R2
C3
VCC
5 V / 3.3 V
RD+
R7
1)
Design criterion of the capacitor used is the
resonant frequency and its value must be
in the order of the nominal data rate.
Short trace lengths are mandatory.
C2
C1
1)
1)
Serializer/
Deserializer
Gigabit
Transceiver
Chip
File: 1396
C1/2/3
L1/2
R9
Place R1/2/3/4/7/8 close to SerDes chip,
depends on SerDes chip used,
see application note of SerDes supplier.
= 4.7 µF
= 1 µH
= 510 Ω (5 V), no resistor for TTL version
= 270 Ω (3.3 V)
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 16
Shield Options
Figure 8 Shield with Forward Springs, -C3
Dimensions in mm [inches]
File: 1508
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 17
Figure 9 Shield with Backward Springs, -D3
Dimensions in mm [inches] File: 1509
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 18
Package Outlines
Figure 10
(8.6 max)
.343 max
4.875
.192
(0.35 ±0.1)
.014 ±.004
(3.8 max)
.15 max
(2.8 max)
.11 max
∅ 0.3
∅ .012
MA
A
M
(1.4 −0.05)
.005 −.002
2x
(9.79 max)
.385 max
2
.08
(0.6 ±0.1)
.024 ±.004
(3.3 ±0.3)
.130 ±.011
(1 ±0.1)
.04 ±.004
(0.63 ±0.2)
.025 ±.008
(∅ 0.46 ±0.05)
∅ .018 ±.002
9x
∅ 0.3
∅ .012
MA
A
∅ 0.1
∅ .004
M
M
PC board
(25.25 ±0.05)
.994 ±.002
A
2.54
.1
20.32
.8
8x
8x
987654321
Z
(2.05 ±0.05)
.079 ±.002
12.7
.5
(2.5 ±0.1)
.098 ±.004
DUPLEX
SC
RECEPTACLE
1
32
(11 max)
.433 max
(15.88 ±0.5)
.625 ±.02
(38.6 ±0.15)
1.52 ±.006
20.32
.8
M
OPTICAL
CENTERLINE
(PC board
thickness)
View Z
(lead cross section
and standoff size)
11x
M
M
∅ 0.1
∅ .004
9x
(0.8 ±0.1)
.032 ±.004
2.54 20.32
.1 .8
8x
8x
(2.54)
.1
(2.54)
.1
20.32
.8
(1.9 ±0.1)
.075 ±.004
11x
2x
Top view
Side view
Footprint
Top view
Dimensions in (mm) inches
File: 1252
Transceiver without Shield
V23826-K15-Cxx, V23826-K15-Cxxx Product Specification – August 2004
© Finisar Corporation August 27, 2004 Rev. B Page 19
For More Information
Finisar Corporation
1308 Moffett Park Drive
Sunnyvale, CA 94089-1133
Tel. 1-408-548-1000
Fax 1-408-541-6138
sales@finisar.com
www.finisar.com
Revision History: August 27, 2004 Rev. B
Previous Version: March 09, 2000
Page Subjects (major changes since last revision)
Company name has been changed
Document’s layout has been changed
December 2004
