Alpha Bridge SFP ASFP-10G-ZR
Features
- Compliant to SFF-8431 specifications for enhanced 8.5 and 10
- Gigabit small form factor pluggable module “SFP+”
- 1550nm cooled EML transmitter with TEC, APD photodetector
- 2-wire interface for management specifications compliant with SFF 8472 digital diagnostic monitoring interface for optical transceivers
- Operating case temperature: 0 to 70 C
- All-metal housing for superior EMI performance
- Low power consumption, less than 1.8W
- Advanced firmware allow customer system encryption information
to be stored in transceiver - Cost effective SFP+ solution, enables higher port densities and
greater bandwidth - RoHS compliant
Applications
- 10GBASE-ER/EW.
- 10GBASE-ER/EW + FEC.
- 10G Storage system.
Absolute Maximum Ratings ASFP-10G-ZR
| Parameter | Symbol | Min. | Max. | Units | Note |
| Storage Temperature | Tc | -40 | 85 | °C | |
| Operating Case Temperature | Tc | 0 | 70 | °C | |
| Supply Voltage | Vcc | 0 | 3.6 | V | |
| Relative Humidity | RH | 5 | 95 | % | |
| RX Input Average Power | Pmax | --- | 1.5 | dBm |
ASFP-10G-ZR Recommended Operating Conditions
| Parameter | Symbol | Min. | Max. | Units | Note |
| Case Operating Temperature | Tc | 0 | 70 | °C | |
| Supply Voltage | Vcc | 3.135 | 3.465 | V | |
| Supply Current | ICC | --- | 450 | mA |
Diagnostics ASFP-10G-ZR
| Parameter | Symbol | Accuracy | Units | Note |
| Temperature | Temp | ± 3 | oC | Over operating Temp |
| Voltage | VCC | ± 0.08 | V | Full operating range |
| Bias Current | Bias | ± 10 | mA | |
| TX Power | TX | ± 3 dB | dBm | |
| RX Power | RX | ± 3 dB | dBm | -1dBm to -15dBm range |
Transmitter Electro-optical Characteristics ASFP-10G-ZR
| Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
| Output Optical Power 9/125 mm fiber | Pout | -8 | -- | -2 | dBm | Average |
| Extinction Ratio | ER | 9 | -- | -- | dB | |
| Center Wavelength | lC | 1270 | 1310 | 1355 | Nm | |
| Spectral Width (RMS) | Dl | -- | -- | 2.5 | Nm | |
| Rise/Fall Time, (20-80%) | Tr, f | -- | 260 | ps | ||
| Relative Intensity Noise | RIN | -- | -120 | dB/Hz | ||
| Total Jitter | TJ | 227 | Ps | |||
| Output Eye | -- | -- | Compliant with IEEE802.z | |||
| Max Pout TX-DISABLE Asserted | POFF | -- | -- | -45 | Dbm | |
| Differential Input Voltage | VDIFF | 0.4 | -- | 2.0 | V |
Receiver Electro-optical Characteristics ASFP-10G-ZR
| Parameter | Symbol | Min. | Typ. | Max. | Units | Note |
| Optical Center Wavelength | λC | 1260 | --- | 1600 | nm | |
| Receiver Overload | POL | 0.5 | --- | dbm | ||
| Receiver Sensitivity @10.3Gb/s | RX_SEN1 | --- | -14.4 | dBM | 1 | |
| Receiver Reflectance | TRRX | --- | -12 | dB | ||
| LOS Assert | LOSA | -30 | --- | dBM | ||
| LOS De-Assert | LOSD | -- | --- | -16 | dBm | |
| LOS Hysteresis | LOSH | 0.5 | --- | -- | dB | |
| Single ended data output swing | VOUT PP | 300 | 850 | MV | ||
| Data output rise time/fall time (20%-80%) | tr /tf | 28 | --- | Ps | ||
| LOS Assert | LOS A | 2 | --- | VCC HOST | V | |
| LOS De-Assert | LOS D | VEE | --- | VEE+0.5 | V |
Note 1: Average optical power shall be measured using the methods specified in TIA/EIA-455-95.
Note 2: Receiver sensitivity is informative. Stressed receiver sensitivity shall be measured with conformance test signal for BER =1x 10-12 .
Note 3: Vertical eye closure penalty and stressed eye jitter are the test conditions for measuring stressed receiver sensitivity. They are not the required characteristic of the receiver.
Block Diagram of Transceiver
The SFP+ ER module electrical interface is compliant to SFI electrical specifications. The transmitter input and receiver output impedance is 100 Ohms differential. Data lines are internally AC coupled. The module provides differential termination and reduce differential to common mode conversion for quality signal termination and low EMI. SFI typically operates over 200 mm of improved FR4 material or up to about 150mmof standard FR4 with one connector. The transmitter converts 10Gbit/s serial PECL or CML electrical data into serial optical data compliant with the 10GBASE-LR standard. An open collector compatible Transmit Disable (Tx_Dis) is provided. Logic “1,” or no connection on this pin will disable the laser from transmitting. Logic “0” on this pin provides normal operation. The transmitter has an internal automatic power control loop (APC) to ensure constant optical power output across supply voltage and temperature variations. An open collector compatible Transmit Fault (Tx_Fault) is provided. TX_Fault is a module output contact that when high, indicates that the module transmitter has detected a fault condition related to laser operation or safety. The TX_Fault output contact is an open drain/collector and shall be pulled up to the Vcc_Host in the host with a resistor in the range 4.7-10 kΩ. TX_Disable is a module input contact. When TX_Disable is asserted high or left open, the SFP+ module transmitter output shall be turned off. This contact shall be pulled up to VccT with a 4.7 kΩ to 10 kΩ resistor The receiver converts 10Gbit/s serial optical data into serial PECL/CML electrical data. An open collector compatible Loss of Signal is provided. Rx_LOS when high indicates an optical signal level below that specified in the relevant standard. The Rx_LOS contact is an open drain/collector output and shall be pulled up to Vcc_Host in the host with a resistor in the range 4.7-10 kΩ, or with an active termination. Power supply filtering is recommended for both the transmitter and receiver. The Rx_LOS signal is intended as a preliminary indication to the system in which the SFP+ is installed that the received signal strength is below the specified range. Such an indication typically points to non-installed cables, broken cables, or a disabled, failing or a powered off transmitter at the far end of the cable.
Pin Descriptions ASFP-10G-ZR
| PIN | Single name | Description |
| 1 | TGND | Transmitter Ground |
| 2 | TX_FAULT | Transmitter Fault |
| 3 | TX_DISABLE | Transmitter Disable |
| 4 | MOD_DEF(2) | SDA Serial Data Signal |
| 5 | MOD_DEF(1) | SCL Serial Clock Signal |
| 6 | MOD_DEF(0) | TTL Low |
| 7 | RATE SELECT | Open Circuit |
| 8 | RX_LOS | Receiver Loss of Signal, TTL High, Open collector |
| 9 | RGND | Receiver Ground |
| 10 | RGND | Receiver Ground |
| 11 | RGND | Receiver Ground |
| 12 | RX- | Receive Data Bar, Differential PECL, ac coupled |
| 13 | RX+ | Receive Data, Differential PECL, ac coupled |
| 14 | RGND | Receiver Ground |
| 15 | VCCR | Receiver Power Supply |
| 16 | VCCT | Transmitter Power Supply |
| 17 | TGND | Transmitter Ground |
| 18 | TX+ | Transmit Data, Differential PCEL, ac coupled |
| 19 | TX- | Transmit Data Bar, Differential PCEL, ac coupled |
| 20 | TGND | Transmitter Ground |
Note:
- Module ground pins GND are isolated from the module.
- Shall be pulled up with 7K-10Kohms to a voltage between 3.15V and 3.45V on the host board.
Optical Receptacle Cleaning Recommendations:
All fiber stubs inside the receptacle portions were cleaned before shipment. In the event of contamination of the optical ports, the recommended cleaning process is the use of forced nitrogen. If contamination is thought to have remained, the optical ports can be cleaned using a NTT international Cletop® stick type and HFE7100 cleaning fluid. Before the mating of patch-cord, the fiber end should be cleaned up by using Cletop® cleaning cassette.
Ordering Information ASFP-10G-ZR
| Model Number | Part Number | Reach | Input/Output | Signal Detect | Voltage | Temperature |
| ASFP-10G-ZR | OPAK-S10-13-CB | 10km | AC/AC | TTL | 3.3V | 0°C to 70 °C |
