S2070A AMCC (Applied Micro Circuits Corp), S2070A Datasheet

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S2070A

Manufacturer Part Number
S2070A
Description
Ethernet Transceiver, Fiber Channel/Gigabit Ethernet Transceiver
Manufacturer
AMCC (Applied Micro Circuits Corp)
Datasheet
June 14, 2000 / Revision F
FEATURES
APPLICATIONS
Figure 1. System Block Diagram
DEVICE
SPECIFICATION
FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER
FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER
• 1062 Mbps (Fibre Channel) line rates
• 1250 Mbps (Gigabit Ethernet) line rates
• Half and full VCO output rates
• Functionally compliant to IEEE 802.3z Gigabit
• Transmitter incorporating phase-locked loop
• Receiver PLL provides clock and data recovery
• 10-bit parallel TTL compatible interface
• Low-jitter serial LVPECL compatible interface
• Local loopback
• Single +3.3 V supply, 620 mW power dissipation
• 64 PQFP package
• Continuous downstream clocking from receiver
• Drives 30 m of Twinax cable directly
• Workstation
• Frame buffer
• Switched networks
• Data broadcast environments
• Proprietary extended backplanes
Ethernet Specification and the ANSI X3T11
Fibre Channel Specification
(PLL) clock synthesis from low speed reference
Controller
Ethernet/
Channel
Gigabit
Fibre
S2070
Optical
Tx
Optical
Rx
GENERAL DESCRIPTION
The S2070 transmitter and receiver chip facilitates
high speed serial transmission of data over fiber op-
tic, coax, or twinax interfaces. The device conforms
to the requirements of the IEEE 802.3z Gigabit
Ethernet Specification and the ANSI X3T11 Fibre
Channel specification, and runs at 1062 Mbps or
1250 Mbps data rates with an associated 10-bit data
word.
The chip provides parallel-to-serial and serial-to-par-
allel conversion, clock generation/recovery, and
framing for block encoded data. The on-chip transmit
PLL synthesizes the high-speed clock from a low-
speed reference. The on-chip receive PLL performs
clock recovery and data re-timing on the serial bit
stream. The transmitter and receiver each support
differential LVPECL compatible I/O for copper or fi-
ber optic component interfaces with excellent signal
integrity. Local loopback mode allows for system di-
agnostics. The chip requires a +3.3 V power supply
and dissipates approximately 620 mW under typical
conditions.
The S2070 can be used for a variety of applications
including Fibre Channel, serial backplanes, and pro-
prietary point-to-point links. Figure 1 shows a typical
configuration incorporating the chip.
Optical
Rx
Optical
Tx
S2070
Controller
Ethernet/
Channel
Gigabit
Fibre
S2070
S2070
®
1

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S2070A Summary of contents

Page 1

DEVICE SPECIFICATION FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER FEATURES • 1062 Mbps (Fibre Channel) line rates • 1250 Mbps (Gigabit Ethernet) line rates • Half and full VCO output rates • Functionally compliant to IEEE 802.3z Gigabit Ethernet ...

Page 2

S2070 S2070 OVERVIEW The S2070 transmitter and receiver provide serial- ization and deserialization functions for block en- coded data to implement a Gigabit Ethernet or Fibre Channel interface. The S2070 functional block dia- gram is depicted in Figure 2. The ...

Page 3

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER TRANSMITTER DESCRIPTION The S2070 transmitter accepts 10-bit parallel input data and serializes it for transmission over fiber optic or coaxial cable media. The chip is fully compatible with the IEEE 802.3z Gigabit Ethernet and ANSI X3T11 ...

Page 4

S2070 RECEIVER DESCRIPTION Whenever a signal is present, the receiver attempts to recover the serial clock from the received data stream. The S2070 searches the serial bit stream for the occurrence of a positive polarity COMMA sync pattern (0011111xxx positive ...

Page 5

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Parallel Output Clock Rate and Data Stretching The S2070 supports both full rate and half rate out- puts, selected via the RATEN input. Table 4 shows the operating rate scenarios. When RATEN is INAC- TIVE, a ...

Page 6

S2070 Table 5. Pin Description and Assignment ...

Page 7

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Table 5. Pin Description and Assignment (Continued ...

Page 8

S2070 Table 6. Power and Ground Signals ...

Page 9

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Figure 4. S2070 Pinout 1 VEE 2 TX[0] TX[ TX[2] VCC 5 6 TX[3] TX[4] 7 TX[ TX[6] VCC 10 TX[7] 11 TX[ TX[9] RATEN 14 AVEE 15 16 DNC ...

Page 10

S2070 Figure 5. 14mm x 14mm 64 PQFP Package TOP VIEW 10 FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER June 14, 2000 / Revision F ...

Page 11

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Figure 6. 10mm x 10mm 64 PQFP with Heat Spreader Package TOP VIEW June 14, 2000 / Revision F S2070 11 ...

Page 12

S2070 Table 7. Power and Ground Application Information ...

Page 13

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Figure 7. Power and Ground Connection Diagram 100 Vcc (+3.3 V) Vcc (+3 Vcc (+3 ferrite 100 pF 0.1 F June 14, 2000 / Revision F Vcc (+3.3 V) ...

Page 14

S2070 Figure 8. Transmitter Timing TBC TX[0:9] SERIAL DATA OUT Table 8. S2070 Transmitter Timing ...

Page 15

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Figure 9. Receiver Timing Full Rate Mode (RATEN Active) SERIAL DATA IN RBC0 RBC1 RX[9:0] Figure 10. Receiver Timing Half Rate Mode (RATEN Inactive) SERIAL DATA IN RBC1 RX[9:0] June 14, 2000 / Revision F T ...

Page 16

S2070 Table 9. S2070 Receiver Timing ...

Page 17

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER Table 10. Absolute Maximum Ratings The following are the absolute maximum stress ratings for the S2070 device. Stresses beyond those listed may cause permanent damage to the devices. Absolute maximum ratings are stress ratings only and ...

Page 18

S2070 Table 13. DC Characteristics ...

Page 19

FIBRE CHANNEL/GIGABIT ETHERNET TRANSCEIVER OUTPUT LOAD The S2070 serial outputs require a resistive load to set the output current. The recommended resistor value is 150 ohms to ground. This value can be var- ied to adjust drive current, signal voltage ...

Page 20

S2070 Ordering Information Applied Micro Circuits Corporation • 6290 Sequence Dr., San Diego, CA 92121 Phone: (858) 450-9333 • (800) 755-2622 • Fax: ...

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