EP2SGX30DF780C5N Altera, EP2SGX30DF780C5N Datasheet - Page 24

• Manufacturer Part Number: EP2SGX30DF780C5N
• Description: IC STRATIX II GX 30K 780-FBGA
• Manufacturer: Altera
• Series: Stratix® II GXr

Specifications of EP2SGX30DF780C5N

• Number Of Logic Elements/cells: 33880
• Number Of Labs/clbs: 1694
• Total Ram Bits: 1369728
• Number Of I /o: 361
• Voltage - Supply: 1.15 V ~ 1.25 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 780-FBGA
• Family Name: Stratix II GX
• Number Of Logic Blocks/elements: 33880
• # I/os (max): 361
• Frequency (max): 609.76MHz
• Process Technology: SRAM
• Operating Supply Voltage (typ): 1.2V
• Logic Cells: 33880
• Ram Bits: 1369728
• Operating Supply Voltage (min): 1.15V
• Operating Supply Voltage (max): 1.25V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 780
• Package Type: FC-FBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -
• Lead Free Status / Rohs Status: Compliant
• Other names: 544-1754

Transceivers
2–16
Stratix II GX Device Handbook, Volume 1
Figure 2–13. Programmable Receiver Termination
If a design uses external termination, the receiver must be externally
terminated and biased to 0.85 V or 1.2 V.
of an external termination and biasing circuit.
Figure 2–14. External Termination and Biasing Circuit
Programmable Equalizer
The Stratix II GX receivers provide a programmable receive equalization
feature to compensate the effects of channel attenuation for high-speed
signaling. PCB traces carrying these high-speed signals have low-pass
filter characteristics. The impedance mismatch boundaries can also cause
signal degradation. The equalization in the receiver diminishes the lossy
attenuation effects of the PCB at high frequencies.
50/60/75- Ω
Termination
Resistance
Transmission
Line
50, 60, or 75 Ω
50, 60, or 75 Ω
V
Receiver External Termination
and Biasing
DD
× {R2/(R1 + R 2)} = 0.85/1.2 V
Receiver External Termination
R1/R2 = 1K
V
C1
and Biasing
DD
V
CM
Figure 2–14
R2
R1
Stratix II GX Device
shows an example
Differential
Altera Corporation
Buffer
RXIN
RXIP
Input
Receiver
October 2007