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© 2010 Integrated Device Technology, Inc
1 of 2 August 30, 2010
Device Overview
The IDT 89HP0508P (P0508P) is a 5Gbps PCIe® Repeater device
featuring IDT EyeBoost™ technology that compensates for cable and
board trace attenuations and ISI jitter, thereby extending connection
reach. The device is optimized for PCIe Gen1 and Gen2 high speed
serial data streams and contains eight data channels, each able to
process 5Gbps transmission rates. Each channel consists of an input
equalizer and amplifier, signal detection with glitch filter, as well as
programmable output swing, slew rate, and de-emphasis with delay
control. Since all of these features are user programmable, they allow
for application specific optimization.
Besides the per channel programmable features, the P0508P
provides global programmable settings - termination resistance values
and transfer modes. The P0508P, with its many programmable receiver
and transmitter features, is ideal for PCIe applications using any
combination of cables and board trace materials.
All modes of active data transfer are designed with minimized power
consumption. Also, a wide selection of power reducing modes allows the
user to eliminate power of unused blocks, including a shutdown mode.
In full shutdown mode, the part consumes less than 80mW in worst case
environmental conditions.
Applications
Blade servers, rack servers
PCIe instrumentation
Storage systems
Cabled PCIe devices
Features
Compensates for cable and PCB trace attenuation and ISI
jitter
Programmable receiver equalization up to 30db
Programmable de-emphasis up to -8.5dB
Recovers data stream even when the differential signal eye
is completely closed due to trace attenuation and ISI jitter
Full PCIe protocol support
Configurable via I
2
C interface
Supports automatic download of configuration from
external EEPROM with a single or multiple repeaters on I2C
bus
Leading edge power minimization in active and shutdown
modes
No external bias resistors or reference clocks required
Channel mux mode, demux mode, 1 to 2 channels multicast,
and Z-switch function mode
Available in a 9x9mm 100-ball FPBGA package
Benefits
Extends maximum cable length to over 10 meters and trace
length over 65 inches in PCIe applications
Speeds up system design time by allowing usage of longer
trace and cable lengths
Minimizes BER
89HP0508P
Product Brief
8-Channel 5Gbps Gen2
PCIe® Signal Repeater
Typical Application
Figure 1 IDT Repeaters in Blade Servers
(Trace, Cable)
Server
PCIe gen1,2
IDT
Repeater
PCIe gen1,2
(Trace, eg. FR4)
Server
Chipset
PCIe gen1,2
(Trace, eg. FR4)
Chipset
IDT
Repeater