

Ascent’s SFPP-AT-CO-02 10GBASE-T SFP+ copper transceivers are based on the SFP Multi-Source Agreement (MSA). These 10GBASE SFP+ series modules offer a wide variety of 10 Gigabit Ethernet connectivity options for data center, enterprise wiring closet, and service provider transport applications.
• Up to 10 Gb/s bi-directional data links
• Hot-pluggable SFP+ footprint
• Low power dissipation (max. 3W)
• Compact RJ-45 connector assembly
• Fully metal enclosure, for lower EMI
• RoHS compliant and lead-free
• Single +3.3V power supply
• Supports Links up to 30m using Cat 6a/7 Cable
• Case operating temperature: 0 °C to +70 °C
+3.3V Volt Electrical Power Interface
SFPP‑AT‑CO‑02 has an input voltage range of 3.3 V +/‑ 5%. The 4V maximum voltage is not allowed for continuous operation.
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Supply Current | Is | 700 | 900 | mA | 1 | |
Input Voltage | Vcc | 3.13 | 3.3 | 3.47 | V | |
Maximum Voltage | Vmax | 4 | V | |||
Surge Current | Isurge | TBD | mA |
Notes:
1. 3.0W max power over full range of voltage and temperature. See caution note below.
2. Referenced to GND.
3. Hot plug above steady state current. See caution note below.
Caution: Power consumption and surge current are higher than the specified values in the SFP MSA
Low‑Speed Signals, Electronic Characteristics
MOD_DEF(1) (SCL) and MOD_DEF(2) (SDA), are open drain CMOS signals (see section VII, "Serial Communication Protocol"). Both MOD_DEF(1) and MOD_DEF(2) must be pulled up to host_Vcc.
Parameter | Symbol | Min. | Max. | Unit | Note |
SFP Output LOW | VOL | 0 | 0.5 | V | 1 |
SFP Output HIGH | VOH | host_Vcc ‑0.5 | host_Vcc + 0.3 | V | 1 |
SFP Input LOW | VIL | 0 | 0.8 | V | 2 |
SFP Input HIGH | VIH | 2 | Vcc + 0.3 | V | 2 |
Notes:
1. 4.7 kΩ to 10 kΩ pull‑up to host_Vcc, measured at host side of connector.
2. 4.7 kΩ to 10 kΩ pull‑up to Vcc, measured at SFP side of connector.
High‑Speed Electrical Interface
All high‑speed signals are AC‑coupled internally.
High‑Speed Electrical Interface, Transmission Line‑SFP | ||||||
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Line Frequency | fL | 125 | MHz | 1 | ||
Tx Output Impedance | Zout, TX | 100 | Ω | 2 | ||
Rx Input Impedance | Zin, RX | 100 | Ω | 2 | ||
High‑Speed Electrical Interface, Host‑SFP | ||||||
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Single ended data input swing | Vinsing | 250 | 1200 | mV | 3 | |
Single ended data output swing | Voutsing | 350 | 800 | mV | 3 | |
Tx Input Impedance | Zin | 50 | Ω | 3 | ||
Rx Output Impedance | Zout | 50 | Ω | 3 | ||
Notes:
1. 5‑level encoding, per IEEE 802.3.
2. Differential, for all frequencies between 1 MHz and 125 MHz.
3. Single‑ended.
General Specifications
Clock tolerance is +/‑ 50 ppm
Automatic crossover detection is enabled. External crossover cable is not required
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Data Rate | BR | 1 | 10 | Gb/sec | 1 | |
Cable Length | L | 30 | m | 2 |
Notes:
1. IEEE 802.3 compatible. By default, the SFPP‑AT‑CO‑02 is a full duplex device in preferred master mode.
2. Category6A/7 UTP. BER.
Environmental Specifications
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
Case Operating Temperature | Tcase | 0 | 70 | °C | ||
Storage Temperature | Tsto | ‑40 | 85 | °C | Ambient temperature |
Serial Communication Protocol
SFPP‑AT‑CO‑02 supports the 2‑wire serial communication protocol outlined in the SFP MSA. These SFPs use an MCU, can be accessed with address of A0h.
Serial Bus Timing Requirements | ||||||
Parameter | Symbol | Min. | Typ. | Max. | Unit | Note |
I 2C Clock Rate | 0 | 200, 000 | Hz | |||

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