Altera Stratix GX Transceiver Manuel d'utilisateur Page 20

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2–2 Altera Corporation
Stratix GX Transceiver User Guide January 2005
Transmitter Analog
Figure 2–1. Block Diagram Analog Components
Transmitter
Analog
This section describes the transmitter buffer, the transmitter PLL, and the
serializer. Figure 2–2 shows the transmitter analog components.
Figure 2–2. Transmitter Analog Components
Transmitter Buffer
The Stratix
®
GX transceiver buffers support the 1.5-V PCML standard at
speeds up to 3.1875 gigabits per second (Gbps) and are capable of driving
40 inches of FR4 trace across two connectors. In addition, the buffer
contains programmable output voltage, programmable pre-emphasis
circuitry, and internal termination circuitry.
Deserializer
Serializer
Word
Aligner
8B/10B
Decoder
Channel
Aligner
Byte
Deserializer
8B/10B
Encoder
Phase
Compensation
FIFO Buffer
Reference
Clock
Reference
Clock
Byte
Serializer
Phase
Compensation
FIFO Buffer
Rate
Matcher
Digital SectionAnalog Section
Receiver
PLL
Transmitter
PLL
Clock
Recovery
Unit
Receiver
Transmitter
Serializer
8B/10B
Encoder
Reference
Clock
Byte
Serializer
Phase
Compensation
FIFO Buffer
Digital SectionAnalog Section
Transmitter
PLL
Transmitter
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