GN1406 Quad Multi-rate Retiming Redriver
GN1407 Quad Channel Redriver
Features: GN1406
GN1407
exteND the reach oF
pci express
®
• GN1406: Multiprotocol
quad retiming redriver
• GN1407: Multiprotocol
quad redriver
• Support for:
- Gen 1, Gen 2 and
Gen 3 applications
- Infiniband SDR/DDR
- 10GbE
- High-speed line card
and backplane
communication
• GN1406 consumes only
100mW per channel
• GN1407 consumes only
70mW per channel
• 8mm x 8mm 56 pin QFN
(pin compatible)
• Protocol transparent
• Multi-rate operation (retimer enabled):
2.5Gb/s, 3.125Gb/s, 5Gb/s, or 6.25Gb/s
• Multi-rate operation (retimer bypassed):
1.25Gb/s to 8Gb/s
• Low power dissipation - 100mW per channel
• High input jitter tolerance
• Low output jitter
• Programmable high gain input equalization
• Programmable output de-emphasis
• Independent channel operation
• Low latency (< 3 bit period)
• On-chip channel diagnostics
• Independent channel operation
• I
2
C control interface
GeNeral DescriptioN
• Multi-rate operation from 1.25Gb/s to 8Gb/s
• Low power dissipation - 70mW per channel
• Programmable high gain input equalization
• On-chip channel diagnostics
• Independent channel operation
• I
2
C control interface
• Low latency (< 1 bit period)
The GN1406 is a quad retiming redriver designed for 2.5Gb/s and 5.0Gb/s or 3.125Gb/s and 6.25Gb/s
high-speed data. The GN1406 extends the reach and robustness of high-speed serial links by
compensating for losses in the transmission medium and resetting the jitter budget.
The GN1407 is a quad channel redriver designed for 1.25Gb/s to 8Gb/s high-speed data. It extends the
reach and robustness of high-speed serial links by compensating for loss in the transmission medium.
Both the GN1406 and GN1407 support independent channel configuration enabling host design flexibility
and channel customization. The GN1406 and GN1407 are pin compatible.
applicatioNs
• PCI Express Gen1, Gen2, Gen3 copper
and optical interconnect
• Infiniband SDR / DDR
• IEEE 10GBASE-CX4, 10GBASE-LX4,
10GBASE-KX4
Figure A: Typical application GN1406
EQ
CDR
EQ
CDR
• High-speed line card and backplane
communication
• Parallel optics (QSFP, SNAP-12, POP-4)
• SAS/SATA
• RapidIO
Figure B: Typical application GN1407
EQ
PCIe
Endpoint
ASIC
GN1406 (one channel)
GN1406 (one channel)
Switch/
Root
Complex
CDR
EQ
CDR
EQ
PCIe
Endpoint
ASIC
EQ
GN1407
(one channel)
GN1407
(one channel)
Switch/
Root
Complex
GN1406 (one channel)
GN1406 (one channel)
ENDPOINT CARD
Cable,
Backplane,
Connectors
HOST SYSTEM
ENDPOINT CARD
Cable,
Backplane,
Connectors
HOST SYSTEM
learN More aBout the GeNNuM GN1406 & GN1407 at
www.gennum.com
GN1406
Number of Lanes
Data Rate Support (Gb/s)
Power Consumption (per channel)
Jitter Compensation
Protocol Transparent
Electrical Idle Preservation
Spread Spectrum Clocking
Individual Channel Control and Monitoring
Supports Receiver Detection by Dual Input Termination
Output De-emphasis
Configuration Through Micro-Controller or EEPROM
I
2
C Interface
8x8 QFN
GN1407
4
1.25-8Gb/s
70mW
Channel
Deterministic Jitter
3
3
3
3
3
3
3
3
3
4
Retimed: 2.5, 3.125, 5, 6.25
Equalizer Only: 1.25-8Gb/s
Retimed: 100mW
Equalizer Only: 70mW
Transmitter & Channel
Deterministic & Random Jitter
3
3
3
3
3
3
3
3
3
GN1406: Channel Block Diagram
Ref Clock Bu er
RefClock
1 of 4 Identical Blocks
Dual
Termination*
Loss-of-Signal
(LOS) Detector
* Note:
For Receiver Detection in PCIe
Quiescent Mode Enable
1.2 V
Address Interface
S2 S1 S0
Address Bits
I
2
C Control
EQ Gain
Prog.
EQ
3-tap
De-emphasis
Mux
Bypass
Output Mute
(Electrical Idle Detect)
Horizontal Phase Adjust
Tri-state Enable
Control
I
2
C Interface
SCA
SCL
1.8V
Bypass
Output Swing
Output De-emphasis
Di erential
Output
Ref Clock
Output
Di erential
Input
Re-Timer
GN1407: Channel Block Diagram
RefClock
Ref Clock Bu er
1 of 4 Identical Blocks
Ref Clock
Output
Di erential
Input
Dual
Termination*
Loss-of-Signal
(LOS) Detector
* Note:
For Receiver Detection in PCIe
Quiescent Mode Enable
Prog.
EQ
Di erential
Output
Output Mute
(Electrical Idle Detect)
EQ Gain
Control
Output Swing
1.2 V
Address Interface
S2 S1 S0
Address Bits
I
2
C Interface
SCA
SCL
1.8V
learN More:
url: www.gennum.com
email: info@gennum.com
Phone: (905) 632-2996
© 2009 gennum corporation
® ™ Trademarks of gennum corporation except where otherwise noted.
Printed in canada.
I
2
C Control
Power technology
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