1000Base-T SFP Transceiver
DeSCRJPTion:
Baudcom’s BDTR-GB-PxRC Copper Small Form Pluggable (SFP)transceivers is high performance, cost effective module compliant with the Gigabit Ethernet and 1000- BASE-T standards as specified in IEEE 802. 3-2002 and IEEE 802.3ab, which supp- orting 1000Mbps data- rate up to 100 meters reach over unshielded twisted-pair category 5 cable. The module supports1000 Mbps full duplex data-links with 5-level Pulse Amplitude Modulation (PAM) signals. All four pairs in the cable are used with symbol rate at 250Mbps on each pair. The module provides standard serial ID information compliant with SFP MSA, which can be accessed with address of A0h via the 2wire serial CMOS EEPROM protocol. The physical IC can also be accessed via 2wire serial bus at address A0h.
Features:
Interface:
All high-speed signals are AC-coupled internally.
Table 3. High-speed electrical interface, transmission line-GBIC
High-Speed Electrical Interface Transmission Line-GBIC
Parameter
Symbol
Min
Typ
Max
Units
Notes/Conditions
Line Frequency
fL
125
MHz
5-level encoding, per IEEE 802.3
Tx Output Impedance
Zout,TX
100
Ohm
Differential, for all Frequencies between 1MHz and 125MHz
Rx Input Impedance
Zin,RX
100
Ohm
Differential, for all Frequencies between 1MHz and 125MHz
High-speed electrical interface, host-GBIC
Table 4. High-speed electrical interface, host-GBIC
High-Speed Electrical Interface, Host-GBIC
Parameter
Symbol
Min
Typ
Max
Units
Notes/Conditions
Single ended data input swing
Vinsing
250
1200
mV
Single ended
Single ended data output swing
Voutsing
350
800
mV
Single ended
Rise/Fall Time
Tr,Tf
175
psec
20%-80%
Tx Input Impedance
Zin
50
Ohm
Single ended
Rx Output Impedance
Zout
50
Ohm
Single ended
General Specifications
Table 5. General specifications
General
Parameter
Symbol
Min
Typ
Max
Units
Notes/Conditions
Data Rate
BR
10
1,000
Mb/sec
IEEE 802.3 compatible.
See Notes 2 through 4 below
Cable Length
L
100
m
Category 5 UTP. BER <10-12
Notes:
1. Clock tolerance is +/- 50 ppm
2. By default, the BDTR-GB-P 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
Environmental Specifications
Parameter
Symbol
Min
Typ
Max
Units
Notes/Conditions
Operating Temperature
Top
0
85
°C
Case temperature
Storage Temperature
Tsto
-40
85
°C
Ambient temperature
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