MXP-123SF [ETC]
1.25G SFP Transceiver; 1.25G SFP收发器
| 型号： | MXP-123SF |
| 厂家： | 
ETC |
| 描述： | 1.25G SFP Transceiver |
| 文件： | 总7页 (文件大小：303K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
1.25G SFP Transceiver
MXP-243S
Applications:
ꢀ
ꢀ
1.25Gb/s 1000Base-LX Ethernet
1.0625Gb/s Fiber Channel
Features:
Description
ꢀ
Operating bit rate
MXP-243S SFP transceiver is an excellent product , which is a series of
high performance optical modules suitable for the Fiber optic communication
and Ethernet accessing for signal that rates up to 1.25Gb/s.
1.25Gb/s
ꢀ
Operating at
1280-1330nm wavelength
The transmitter section of MXP-243S SFP incorporates 1310nm FP laser as
the optical source. And the receiver section consists of a PIN photodiode mounted
together with a trans-impedance preamplifier (TIA).
ꢀ
Single +3.3V power
supply
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Differential LVPECL
Because of its hot-pluggable capability , MXP-243S SFP transceiver can
be installed in or removed from any MSA compliant pluggable small form
factor port regardless of whether the host equipment is operating or not.
Furthermore , MXP-243S SFP transceiver features an E/EPROM that
contains the detailed product’s information stored for retrieval by host
equipment. For further information, please refer to SFP Multi-Source
Agreement (MSA).
inputs and outputs
ꢀ
TTL signal detect
indicator
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Industry standard
small form pluggable
(SFP) package
ꢀ
Hot-pluggable
The transceiver operates at up to1.25G data-rate from a single +3.3 V
power supply only. And it uses TTL signal as detect indicator.
capability
ꢀ
ꢀ
Duplex LC connector
Metal enclosure, for
Specification:
lower EMI
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Very low jitter
Low power
Operating Information
ꢀ
Part Number Input/Output Signal Detect Voltage Temperature
dissipation
MXP-243S
AC/AC
TTL
+3.3V
0℃ to70℃
ꢀ
Link length up to
20km in 9/125 SMF
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Transmitter Optical, Electrical Characteristics
Parameter
Symbol Min Typ Max Unit
Note
Input differential impedance
Differential data input swing
Transmit Disable Input High Voltage
Transmit Disable Input Low Voltage
Transmit Fault OutputHighVoltage
Transmit Fault Output LowVoltage
Transmit Disable Assert Time
Optical Transmit Power
Rin
100
Ω
1200 mV
V
Vin PP
100
2.0
0.8
V
V
2.0
0.8
5
V
0.14
µs
PO
ER
∆λ
-9.5
9
-3
dBm
dB
nm
Average Power
Extinction Ratio
Output Spectrum Width(RMS)
4
Receiver Optical, Electrical Characteristics
Parameter
Single ended data output swing
Receiver Loss of Signal Output
Voltage -high
Symbol
Min
Typ
Max
Unit
Note
Vout PP
200
2
800
mV
V
Receiver Loss of Signal Output
Voltage -low
0.8
-20
V
Sensitivity
Sen
dBm BER<1E-10
Maximum Input Power
Signal detect Range
PinMAX
-3
dBm
dBm
dB
-30
0.5
-21
Signal detect-Hysteresis
Absolute Maximum Ratings
Parameter
Symbol
Min
-40
0
Max
Unit
℃
Note
Storage Temperature
Operating Temperature
Power Supply Voltage
TS
TO
+85
+70
6.0
℃
VCC
-0.5
V
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Pin View：
20
1
VEET
TD-
VEET
TX Fault
19
18
2
3
4
5
6
TD+
TX Disable
17
16
VEET
VCCT
MOD_DEF(2)
MOD_DEF(1)
15
VCCR
VEER
RD+
MOD_DEF(0)
Rate Select
LOS
14
13
7
8
RD-
VEER
12
11
9
10
VEER
VEER
Top of board
Bottom of board
Pin Assignment:
Pin
1
Name
VEET
Description
Transmitter Ground
Transmitter Fault.
2
TXFAULT
TXDIS
3
Transmitter Disable.
SDA Serial Data Signal
SCL Serial Clock Signal
4
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
Rate Select
LOS
5
6
Grounded within the module.
No connection required
7
8
Loss of Signal indication. Logic 0 indicates normal operation.
Receiver Ground
9
VEER
10 VEER
11 VEER
Receiver Ground
Receiver Ground
12 RD-
Receiver Inverted DATA out.
Receiver Non-inverted DATA out.
Receiver Ground
13 RD+
14 VEER
15 VCCR
16 VCCT
17 VEET
18 TD+
19 TD-
Receiver Power Supply
Transmitter Power Supply
Transmitter Ground
Transmitter Non-Inverted DATA in.
Transmitter Inverted DATA in.
Transmitter Ground
20 VEET
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Block Diagram Of Transceiver
Transmitter Section
The transmitter section
consists of 1310nm FP
laser in an eye safe optical
subassembly (OSA) which
mates to the fiber cable.
The laser OSA is driven by
a LD driver IC which
converts differential input
LVPECL logic signals into
an analog laser driving
current.
RECEIVER
DATA+
RXLOS
RXd-
RXd+
DATA-
MOD_DEF(2)
MOD_DEF(1)
MOD_DEF(0)
TRANSMITTER
BIAS
TXd+
TXd-
TX-DIS
DATA+
DATA-
PM
TX-FAULT
TX-FAULT
TX Fault is an open collector/drain output, which should be pulled up with a 4.7K –
10KΩ resistor on the host board. Pull up voltage between 2.0V and VccT, R+0.3V. When
high, output indicates a laser fault of some kind. Low indicates normal operation. In the
low state, the output will be pulled to < 0.8V.
When sensing an improper power level in the laser driver, the SFP sets this signal
high and turns off the laser. TX-FAULT can be reset with the TX-DISABLE line. The
signal is in TTL level.
TX-DISABLE
TX disable is an input that is used to shut down the transmitter optical output. It is
pulled up within the module with a 4.7 – 10 KΩ resistor. Its states are: Low (0 – 0.8V):
Transmitter on; (>0.8, < 2.0V): Undefined; High (2.0 – 3.465V): Transmitter Disabled;
Open: Transmitter Disabled. The TX-DISABLE signal is high (TTL logic “1”) to turn off
the laser output. The laser will turn on when TX-DISABLE is low (TTL logic “0”).
TD-/+
These are the differential transmitter inputs. They 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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Receiver Section
The receiver utilizes an InGaAs PIN photodiode mounted together with a
trans-impedance preamplifier IC in an OSA. This OSA is connected to a circuit providing
post-amplification quantization, and optical signal detection.
RX-LOS
LOS (Loss of Signal) is an open collector/drain output, which should be pulled up
with a 4.7K – 10KΩresistor. Pull up voltage between 2.0V and VccT, R+0.3V. When high,
this output indicates the received optical power is below the worst-case receiver sensitivity
(as defined by the standard in use). Low indicates normal operation. In the low state, the
output will be pulled to < 0.8V.
The RX-LOS is high (TTL logic “1”) when there is no incoming light from the
companion transceiver. This signal is normally used by the system for the diagnostic
purpose. The signal is operated in TTL level.
RD-/+
These are the differential receiver outputs. They are AC coupled 100Ω differential
lines which should be terminated with 100 Ω(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.
Recommended Interface Circuit
Host Board
SFP Module
DC+3. 3V
DC+3. 3V
4. 7K t o 10KΩ
4. 7K t o 10KΩ
TX-DISABLE
TX-FAULT
DC+3. 3V
PECL
SerDat OUT+
SerDat OUT-
TX-DAT
Z0=50Ω
Z0=50Ω
Laser
driver
TX-DATQ
2X150Ω
DC+3. 3V
PECL
DC+3. 3V
Z0=50Ω
Z0=50Ω
SerDat IN-
SerDat IN+
RX-DATQ
RX-DAT
Amplifier
RX-LOS
4. 7K t o 10KΩ
DC +3. 3V
3X4. 7K t o 10KΩ
MOD-DEF(2)
EEPROM
MOD-DEF(1)
MOD-DEF(0)
RGND
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Dimensions
Dimensions are in millimeters. All dimensions are ±0.1mm unless otherwise specified. (unit:mm).
7
SN:00000200
11
54. 5
MXP-2 3S
4
Transceiver
6. 25
3. 65
5. 5
8
13. 5
15. 5
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Statement:
ꢁ
Genuine-optical company has the ultimate explanation authority to the content of the product material, if there have some
modifies, we’re sorry for can’t give a notice.
ꢁ
Users should for our company on their one's own uses performance should having prove going on of products, our
company is not responsible for performance of user's products . Any standard , agreement that this text quotes are only for
referential use, do not do the basis of examining the quality of the products , whether the products are qualified to produce
factory's test stone to fix with our company.
Version: V2.1
Publishing Date: 2005-04-28
Contact Information:
Address: Huagong Tech BDG, Science &Technology Region of Hust,
Donghu High-Tech Zone, Wuhan Hubei, P.R.China
Post Code: 430223
Tel: +86-27-87180097
Website: http://www.genuine-opto.com
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