Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber SFP

Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber SFP
Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber
SFP Optical Transceiver
Features
• Industrial standard SFP pins
• Receptacle LC
• Receiver signal detect function
• Wide dynamic rang receiver with AGC
• PECL/LVPECL logic interface, DC or AC
•
•
coupling
Single supply 5V/3.3V
Low power consumption
Specifications
Parameter
Transmitter
Data Rate (NRZ)
Optical Output Power (avg.) (1) (3)
-1
Extinction Ratio
Optical Wavelength
TR78R85 (780nm FP LD)
TR85R78 (850nm VCSEL)
Spectral Width
Output Rise Time (10-90%)
Output Fall Time (10-90%)
Data Input (6)
Symbol
Min.
Typ.
Max.
Unit
B
-
155
-
Mb/s
Po
ER
-9
9
-
-3
-
dBm
dB
λC
λC
Δλ
tr
tf
VIL
VIH
760
820
780
850
1.0
0.4
0.4
5.0
3.3
-
800
880
2.5
0.8
0.8
VCC -1.475
VCC -0.880
0.8
VCC
5.25
3.50
110
nm
nm
nm
ns
ns
Tx Disable Input
VDIL
VDIH
Supply Voltage
VCC
Supply Current
ICC
VCC -1.810
VCC -1.165
0
2
4.75
3.10
-
V
V
V
mA
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2009-11
Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber
SFP Optical Transceiver
Parameter
Receiver
Data Rate (NRZ)
Optical Input (avg.) Sensitivity (1) (5)
-1
Saturation
Optical Wavelength
TR78R85
TR85R78
Output Rise Time (10-90%)
Output Fall Time (10-90%)
Symbol
Min.
Typ.
Max.
Unit
B
-
155
-
Mb/s
PIN
PSAT
-3
0
-20
-
dBm
dBm
820
760
VCC -1.840
VCC -1.045
-22
4.75
3.10
50
20
850
780
2
5.0
3.3
-
880
800
0.4
0.4
VCC -1.62
VCC -0.88
-18
5.25
3.50
100
-
λ
Signal Detect Asserted (avg.)
Signal Detect Deasserted (avg.)
Hysteresis
tr
tf
VOL
VOH
PA
PD
PHYS
Supply Voltage
VCC
Data Output (6)
Supply Current
ICC
Optical Return Loss
RL
Optical Cross Talk
CT
Notes:
(1) With 62.5/125μm fiber.
(2) Driven with a differential signal.
(3) Class 1 eye safe per FDA and IEC.
(4) Eye mask diagram is compliant to IEEE802.3z Eye Diagram
(5) 27 -1 PRBS, BER= 10-12.
(6) Compatible with LVPECL and PECL logic levels.
(7) The transmitter output should not be viewed directly.
nm
ns
ns
V
dBm
dBm
dB
V
mA
dB
dB
Absolute Maximum Ratings
Parameter
Operating Temperature
Min.
0
-40
-40
-0.2
-0.2
-1
-2
Storage Temperature
Lead Soldering Limits
5V
3.3V
Supply Voltage
Max.
70
85
100
240/10
7
4
Unit
°C
°C
°C
°C /sec
V
V
Timing of Control and Status I/O
Parameter
Symbol
TX Disable Assert
t_off
Time
TX Disable
Time
Negate
t_on
Time
to
initialize,
including reset of t_init
TX_Fault
TX Fault Assert Time t_fault
Min. Max. Unit
300
Condition
Time from rising edge of TX Disable to when the
μs
optical output falls below 10% of nominal.
Time from falling edge of TX Disable to when the
ms modulated optical output rises above 90% of
nominal.
From power on or negation of TX Fault using TX
ms Disable.
100
μs Time from fault to TX fault on.
10
1
2
2009-11
Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber
SFP Optical Transceiver
TX Disable to reset
t_reset
LOS Assert Time
LOS Deassert Time
Serial ID Clock Rate
t_loss_on
t_loss_off
f_serial_clock
10
Time TX Disable must be held high to reset
TX_fault.
μs Time from LOS state to RX LOS assert.
μs Time from non-LOS state to RX LOS deassert.
kHz
μs
100
100
100
Ordering Information
T R □ □ R □ □ M 1 - □ -□ □ □ □ □ M □ □
Operating Temperature Range:
1:0 ~ 70°C
2:-40 ~ 85°C
Data Coupling & SD Output Level:
Tx
Rx
SD
Symbol
Coupling Coupling
C
AC
DC
PECL
D
AC
DC
TTL
E
AC
AC
PECL
F
AC
AC
TTL
G
DC
DC
PECL
H
DC
DC
TTL
I
DC
AC
PECL
J
DC
AC
TTL
Supply Voltage:
5:5V
3:3.3V
Connector Type:
LC:LC Connector
Package Type:
P:Pigtail
R:Receptacle
Sensitivity Grade:
(refer to Specifications)
1:-1
Tx Output Power Grade:
(refer to Specifications)
1:-1
Receiver Wavelength / Laser Type:
78:780nm
85:850nm
Transmitter Wavelength / Laser Type:
78:780nm (FP LD)
85:850nm (VCSEL LD)
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2009-11
Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber
SFP Optical Transceiver
Outline Drawing
UNIT:mm
SFP Transceiver Electrical Pad Layout
Pin20
VeeT
Pin 1
VeeT
Pin19
TD-
Pin 2
TX Fault
Pin18
TD+
Pin 3
TX Disable
Pin17
VeeT
Pin 4
MOD-DEF2
Pin16
VccT
Pin 5
MOD-DEF1
Pin15
VccR
Pin 6
MOD-DEF0
Pin14
VeeR
Pin 7
NC
Pin13
RD+
Pin 8
LOS
Pin12
RD-
Pin 9
VeeR
Pin11
VeeR
Pin10
VeeR
Top View of Transceiver
Bottom View of Transceiver
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2009-11
Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber
SFP Optical Transceiver
Pin Description
Pin No.
1
Symbol
VeeT
2
TX Fault
3
TX Disable
4
MOD-DEF2
5
MOD-DEF1
6
MOD-DEF0
7
NC
8
LOS
Description
Transmitter Ground
Transmitter Fault Indication
Logic Low indicates normal operation.
Logic High Indicates a laser fault of some kind.
TX Fault is an open drain output, which should be pulled up with a 4.7K – 10KΩ
resistor on the host board.
Transmitter Disable
Its states are:
Low (0 – 0.8V) :Transmitter on
:Undefined
(>0.8, < 2.0V)
High (2.0 – 3.465V) :Transmitter Disabled
:Transmitter Disabled
Open
It is pulled up within the module with a 4.7K – 10 K.Ω resistor.
Module Definition 2 (SDA)
The data line of two wire serial interface for serial ID.
MOD-DEF2 should be pulled up with a 4.7K – 10KΩresistor on the host board.
The pull-up voltage shall be VccT or VccR.
Module Definition 1 (SCL)
The clock line of two wire serial interface for serial ID.
MOD-DEF1 should be pulled up with a 4.7K – 10KΩresistor on the host board.
The pull-up voltage shall be VccT or VccR.
Module Definition 0 (WP)
MOD-DEF0 is grounded by the module to indicate that the module is present.
Not connected
Loss of Signal
Logic High indicates the received optical power is below the worst-case receiver
sensitivity.
Logic Low indicates normal operation.
LOS is an open drain output, which should be pulled up with a 4.7K – 10KΩ
resistor on the host board.
Receiver Ground
Receiver Ground
Receiver Ground
Inv. Received Data Out (Note 1)
Received Data Out (Note 1)
Receiver Ground
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground
Transmitter Data In (Note 2)
Inv. Transmit Data In (Note 2)
Transmitter Ground
9
VeeR
10
VeeR
11
VeeR
12
RD13
RD+
14
VeeR
15
VccR
16
VccT
17
VeeT
18
TD+
19
TD20
VeeT
Notes:
1.
RD+ and RD- are AC coupled 100Ω differential lines which should be terminated with 100Ω
(differential) at the user SERDES. The AC coupling is done inside the module and is thus not
required on the host board. The voltage swing on these lines will be between 370 and 2000 mV
differential (185 – 1000 mV single ended) when properly terminated.
2.
TD+ and TD- are AC-coupled, differential lines with 100Ω differential termination inside the module.
The AC coupling is done inside the module and is thus not required on the host board. The inputs
will accept differential swings of 500 – 2400 mV (250 – 1200 mV single-ended), though it is
recommended that values between 500 and 1200 mV differential (250 – 600 mV single-ended) be
used for best EMI performance.
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2009-11
Multi-mode 155Mbps 780/850 Bi-Directional Single Fiber
SFP Optical Transceiver
Recommended Host Board Supply Filtering Network
1uH
VccT
0.1uF
1uH
3.3V
VccR
0.1uF
SFP Module
0.1uF
10uF
10uF
Host Board
Example SFP Host Board Schematic
Protocol Vcc
3.3V
SFP Module
1uH
Protocol Vcc
Vcc,T
1uH
4.7KΩ to 10KΩ
10uF
0.1uF
0.1uF
4.7KΩ to 10KΩ
TX Disable
TX Disable
TX Fault
TX Fault
0.01uF
TD+
100Ω
TD-
SerDes IC
LD
Preamp &
Quantizer
PD
0.01uF
GND,T
Protocol IC
Laser Driver
Vcc,T
4.7KΩ to 10KΩ
10uF
0.1uF
0.01uF
RD+
100Ω
RDRX LOS
RX LOS
3.3V
4.7KΩ to 10KΩ
4.7KΩ to 10KΩ
PLD/PAL
Appointech, Inc.
6F-2, NO.192 Tung-Kuan Rd.,
Hsinchu, Taiwan, R.O.C.
TEL:886-3-573-8478
FAX:886-3-573-8441
E-mail:sales@appointech.com
http://www.appointech.com
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2009-11
0.01uF
GND,R
4.7KΩ to 10KΩ
MOD-DEF0 MOD-DEF1 MOD-DEF2
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