1000BASE-T Copper GBIC Transceiver SPT-GE-T1

Features:

• Hot-pluggable GBIC footprint
• Extended case temperature range (0°C to +70°C )
• fully metallic enclosure for low EMI
• Low power dissipation (1.05 W typical)
• Compact RJ-45 connector assembly
• Access to physical layer IC via 2-wire serial bus
• 1000 BASE-T operation in host systems with SERDES interface

Applications:

• 1.25 Gigabit Ethernet over Cat 5 cable

Description:

SPT-GE-T1 1000BASE-T Copper GBIC transceivers are based on the GBIC Multi Source Agreement (MSA). They are compatible with the Gigabit Ethernet and 1000BASE-T standards as specified in IEEE Std 802.32. The 1000BASE-T physical layer IC (PHY) can be accessed via I2C, allowing access to all PHY settings and features. The SPT-GE-T1 uses the GBIC’s RX_LOS pin for link indication, and 1000BASE-X auto-negotiation should be disabled on the host system. The SPT-GE-T1 is compatible with 1000BASE-X auto-negotiation, but does not have a link indication feature (RX_LOS is internally grounded).

+5V Volt Electrical Power Interface

The SPT-GE-T1 has an input voltage range of +5V +/- 5%. The 5.5V maximum voltage is not allowed for continuous operation.

Table 1. +5V Volt electrical power interface

Caution: Power consumption and surge current are higher than the specified values in the GBIC MSA

Low-Speed Signals

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.

Table 2. Low-speed signals, electronic characteristics

High-Speed Electrical Interface

All high-speed signals are AC-coupled internally.

Table 3. High-speed electrical interface, transmission line-GBIC

High-speed electrical interface, host-GBIC

Table 4. High-speed electrical interface, host-GBIC

General Specifications

Table 5. General specifications

Notes:

1. Clock tolerance is +/- 50 ppm

2. By default, the SPT-GE-T1 is a full duplex device in preferred master mode

3. Automatic crossover detection is enabled. External crossover cable is not required

4. 1000 BASE-T operation requires the host system to have an SGMII interface with no clocks, and the module PHY to be configured per Application Note AN-2036. With a SERDES that does not support SGMII, the module will operate at 1000BASE-T only.

Environmental Specifications

Table 6. Environmental specifications

References

1. Gigabit Interface Converter (GBIC) Transceiver Multi-Source Agreement (MSA),

2. IEEE Std 802.3, 2002 Edition. IEEE Standards Department, 2002

3. “AT24C01A/02/04/08/16 2-Wire Serial CMOS E2PROM”, Atmel Corporation.

4. “Alaska Ultra 88E1111 Integrated 10/100/1000 Gigabit Ethernet Transceiver”, Marvell Corporation.

Ordering information

E-mail: sales@sopto.com

Web: http://www.sopto.com