Features:
² UP to 28.05Gb/s bit rates
² Hot-Pluggable
² Duplex LC connector
² 850nm VCSEL transmitter, PIN photo-detector
² Up to 100m on OM4 MMF, 70m on OM3 MMF
² 2-wire interface for management specifications compliant with SFF
8472 digital diagnostic monitoring interface for optical
transceivers
² Cost effective SFP28 solution, enables higher port densities and
greater bandwidth
² Power Supply :+3.3V
² Low Power consumption<1W
² Operating case temperature Range: 0~ 70°C
² RoHS compliant
Applications:
- High-speed storage area networks
- Computer cluster cross-connect
- Custom high-speed data pipes
- Inter Rack Connection
Description:
SH's SH001D is a very compact optical transceiver module converts
25Gbit/s serial PECL or CML electrical data into serial optical
data compliant with the 25GBASE-SR standard. The SFP28 SR module
electrical interface is compliant to SFI electrical specifications.
The VCSEL transmitter and PIN receiver provide superior performance
for Ethernet applications at up to 100m links on OM4 MMF.
The SFP+ Module compliant with SFF-8431, SFF-8432 and IEEE 802.3ae
25GBASE-LR. Digital diagnostics functions are available via a
2-wire serial interface, as specified in SFF-8472.
The fully SFP compliant form factor provides hot pluggability, easy
optical port upgrades and low EMI emission.
l Absolute Maximum Ratings
| Parameter | Symbol | Min. | Typical | Max. | Unit |
| Storage Temperature | TS | -40 | | +85 | °C |
| Case Operating Temperature | TA | 0 | | 70 | °C |
| Maximum Supply Voltage | Vcc | 0 | | 3.6 | V |
| Relative Humidity | RH | 5 | | 95 | % |
l Electrical Characteristics (TOP = 0 to 70 °C, VCC = 3.135 to 3.465 Volts)
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Supply Voltage | Vcc | 3.135 | | 3.465 | V | |
| Supply Current | Icc | | | 300 | mA | |
| Power Consumption | P | | | 1 | W | |
| Data Rate | R | - | 25.8 | 28.05 | Gb/s | |
| Transmitter Section: |
| Input differential impedance | Rin | | 100 | | Ω | 1 |
| Tx Input Single Ended DC Voltage Tolerance (Ref VeeT) | V | -0.3 | | 4 | V | |
| Differential input voltage swing | Vin,pp | 180 | | 700 | mV | 2 |
| Transmit Disable Voltage | VD | 2 | | Vcc | V | 3 |
| Transmit Enable Voltage | VEN | Vee | | Vee+0.8 | V | |
| Receiver Section: |
| Single Ended Output Voltage Tolerance | V | -0.3 | | 4 | V | |
| Rx Output Diff Voltage | Vo | 300 | | 900 | mV | |
| Rx Output Rise and Fall Time | Tr/Tf | 9.5 | | | ps | 4 |
| LOS Fault | VLOS fault | 2 | | VccHOST | V | 5 |
| LOS Normal | VLOS norm | Vee | | Vee+0.8 | V | 5 |
Note:
1. Connected directly to TX data input pins. AC coupling from pins
into laser driver IC.
2. Per SFF-8431 Rev 3.0
3. Into 100 ohms differential termination.
4. 20%～80%
5. LOS is an open collector output. Should be pulled up with 4.7k –
10kΩ on the host board. Normal operation is logic 0; loss of signal
is logic 1. Maximum pull-up voltage is 5.5V.
l Optical Characteristics (TOP = 0 to 70°C, VCC = 3.135 to 3.465 Volts)
| Parameter | Symbol | Min. | Typical | Max. | Unit | Note |
| Transmitter Section: |
| Center Wavelength | λt | 840 | 850 | 860 | nm | |
| spectral width | △λ | | | 1 | nm | |
| Average Optical Power | Pavg | -8.4 | | +2.4 | dBm | 1 |
| Optical Power OMA | Poma | -6.4 | -1.5 | 3 | dBm | |
| Laser Off Power | Poff | | | -30 | dBm | |
| Extinction Ratio | ER | 2.0 | | | dB | |
| Transmitter Dispersion Penalty | TDP | | | 3.8 | dB | TDB |
| Relative Intensity Noise | Rin | | | -128 | dB/Hz | 3 |
| Optical Return Loss Tolerance | | | | 12 | dB | |
| Receiver Section: |
| Center Wavelength | λr | 840 | 850 | 860 | nm | |
| Receiver Sensitivity(OMA) | Sen | | | -10.0 | dBm | 4 |
| Stressed Sensitivity(OMA) | Sen2 | | | -5.2 | dBm | 4 |
| Los Assert | LOSA | -30 | | - | dBm | |
| Los Dessert | LOSD | | | -11 | dBm | |
| Los Hysteresis | LOSH | 0.5 | | 5 | dB | |
| Overload | Sat | 3.5 | | | dBm | 5 |
| Receiver Reflectance | Rrx | | | -12 | dB | |
Note:
1. Average power figures are informative only, per IEEE802.3ae.
2. TWDP figure requires the host board to be SFF-8431compliant.
TWDP is calculated using the Matlab code provided in clause
68.6.6.2 of IEEE802.3ae.
3. 12dB reflection.
4. Conditions of stressed receiver tests per IEEE802.3ae. CSRS
testing requires the host board to be SFF-8431 compliant.
5. Receiver overload specified in OMA and under the worst
comprehensive stressed condition.
| Parameter | Symbol | Min. | Typical | Max. | Unit |
| TX_Disable Assert Time | t_off | | | 100 | us |
| TX_Disable Negate Time | t_on | | | 2 | ms |
| Time to Initialize Include Reset of TX_FAULT | t_int | | | 300 | ms |
| TX_FAULT from Fault to Assertion | t_fault | | | 1 | ms |
| TX_Disable Time to Start Reset | t_reset | 10 | | | us |
| Receiver Loss of Signal Assert Time | TA,RX_LOS | | | 100 | us |
| Receiver Loss of Signal Deassert Time | Td,RX_LOS | | | 100 | us |
| Rate-Select Chage Time | t_ratesel | | | 10 | us |
| Serial ID Clock Time | t_serial-clock | | | 100 | kHz |
| PIN # | Name | Function | Notes |
| 1 | VeeT | Module transmitter ground | 1 |
| 2 | Tx Fault | Module transmitter fault | 2 |
| 3 | Tx Disable | Transmitter Disable; Turns off transmitter laser output | 3 |
| 4 | SDL | 2 wire serial interface data input/output (SDA) | 4 |
| 5 | SCL | 2 wire serial interface clock input (SCL) | 4 |
| 6 | MOD-ABS | Module Absent, connect to VeeR or VeeT in the module | 2 |
| 7 | RS0 | Rate select0, optionally control SFP+ receiver. When high, input
data rate >4.5Gb/ s; when low, input data rate <=4.5Gb/s | |
| 8 | LOS | Receiver Loss of Signal Indication | |
| 9 | RS1 | Rate select0, optionally control SFP+ transmitter. When high, input
data rate >4.5Gb/s; when low, input data rate <=4.5Gb/s | |
| 10 | VeeR | Module receiver ground | 1 |
| 11 | VeeR | Module receiver ground | 1 |
| 12 | RD- | Receiver inverted data out put | |
| 13 | RD+ | Receiver non-inverted data out put | |
| 14 | VeeR | Module receiver ground | 1 |
| 15 | VccR | Module receiver 3.3V supply | |
| 16 | VccT | Module transmitter 3.3V supply | |
| 17 | VeeT | Module transmitter ground | 1 |
| 18 | TD+ | Transmitter non-inverted data out put | |
| 19 | TD- | Transmitter inverted data out put | |
| 20 | VeeT | Module transmitter ground | 1 |
Note:
- The module ground pins shall be isolated from the module case.
- This pin is an open collector/drain output pin and shall be pulled
up with 4.7K-10Kohms to Host_Vcc on the host board.
- This pin shall be pulled up with 4.7K-10Kohms to VccT in the
module.
- This pin is an open collector/drain output pin and shall be pulled
up with 4.7K-10Kohms to Host_Vcc on the host board.
- SFP Module EEPROM Information and Management
The SFP modules implement the 2-wire serial communication protocol
as defined in the SFP -8472. The serial ID information of the SFP
modules and Digital Diagnostic Monitor parameters can be accessed
through the I2C interface at address A0h and A2h.
The memory is mapped in Table 1.
Detailed ID information (A0h) is listed in Table 2.
And the DDM specification at address A2h.
For more details of the memory map and byte definitions, please
refer to the SFF-8472, “Digital Diagnostic Monitoring Interface for
Optical Transceivers”. The DDM parameters have been internally
calibrated.
Table 1 - EEPROM Serial ID Memory Contents (A0h)
| Data Address | Length (Byte) | Name of Length | Description and Contents |
| Base ID Fields |
| 0 | 1 | Identifier | Type of Serial transceiver (03h=SFP) |
| 1 | 1 | Reserved | Extended identifier of type serial transceiver (04h) |
| 2 | 1 | Connector | Code of optical connector type (07=LC) |
| 3-10 | 8 | Transceiver | 25G Base-LR |
| 11 | 1 | Encoding | 64B/66B |
| 12 | 1 | BR, Nominal | Nominal baud rate, unit of 100Mbps |
| 13-14 | 2 | Reserved | (0000h) |
| 15 | 1 | Length(9um) | Link length supported for 9/125um fiber, units of 100m |
| 16 | 1 | Length(50um) | Link length supported for 50/125um fiber, units of 10m |
| 17 | 1 | Length(62.5um) | Link length supported for 62.5/125um fiber, units of 10m |
| 18 | 1 | Length(Copper) | Link length supported for copper, units of meters |
| 19 | 1 | Reserved | |
| 20-35 | 16 | Vendor Name | SFP vendor name: SH |
| 36 | 1 | Reserved | |
| 37-39 | 3 | Vendor OUI | SFP transceiver vendor OUI ID |
| 40-55 | 16 | Vendor PN | Part Number: “SH001D” (ASCII) |
| 56-59 | 4 | Vendor rev | Revision level for part number |
| 60-62 | 3 | Reserved | |
| 63 | 1 | CCID | Least significant byte of sum of data in address 0-62 |
| Extended ID Fields |
| 64-65 | 2 | Option | Indicates which optical SFP signals are implemented (001Ah = LOS, TX_FAULT, TX_DISABLE all supported) |
| 66 | 1 | BR, max | Upper bit rate margin, units of % |
| 67 | 1 | BR, min | Lower bit rate margin, units of % |
| 68-83 | 16 | Vendor SN | Serial number (ASCII) |
| 84-91 | 8 | Date code | SH’s Manufacturing date code |
| 92-94 | 3 | Reserved | |
| 95 | 1 | CCEX | Check code for the extended ID Fields (addresses 64 to 94) |
| Vendor Specific ID Fields |
| 96-127 | 32 | Readable | SH specific date, read only |
| 128-255 | 128 | Reserved | Reserved for SFF-8079 |
Digital Diagnostic Monitor Characteristics
| Data Address | Parameter | Accuracy | Unit |
| 96-97 | Transceiver Internal Temperature | ±3.0 | °C |
| 98-99 | VCC3 Internal Supply Voltage | ±3.0 | % |
| 100-101 | Laser Bias Current | ±10 | % |
| 102-103 | Tx Output Power | ±3.0 | dBm |
| 104-105 | Rx Input Power | ±3.0* | dBm |
