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Pericom Semiconductor Corporation - Serial Re-Driver

Numéro de référence PI2EQX3202B
Description Serial Re-Driver
Fabricant Pericom Semiconductor Corporation 
Logo Pericom Semiconductor Corporation 





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PI2EQX3202B fiche technique
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PI2EQX3202B
3.2Gbps, 4 Differential Channel, Serial Re-Driver
with Equalization, De-emphasis, and Squelch
Features
• Supports data rates up to 3.2Gbps on each lane
• Optimized for SATA i/m operation
• Adjustable Transmiter De-Emphasis & Amplitude
• Adjustable Receiver Equalization
• Two Spread Spectrum Reference Clock Buffer Outputs
• Optimized for SATA applications
• Input signal level detection & output squelch on all channels
• 100-Ohm Differential CML I/O’s
• Low Power (100mW per Channel)
• Standby Mode – Power Down State
• VDD Operating Range: 1.5V to 1.8V
• Packaging (Pb-free & Green): 84-ball LFBGA (NB84)
Description
Pericom Semiconductor’s PI2EQX3202B is a low power, signal
Re-Driver. The device provides programmable equalization,
amplication, and de-emphasis by using 7 select bits, SEL[0:6],
to optimize performance over a variety of physical mediums by
reducing Inter-symbol Interference. PI2EQX3202B supports four
100-Ohm Differential CML data I/O’s between the Protocol ASIC
to a switch fabric, across a backplane, or to extend the signals
across other distant data pathways on the user’s platform.
The integrated equalization circuitry provides exibility with
signal integrity of the signal before the Re-Driver. Whereas the
integrated de-emphasis circuitry provides exibility with signal
integrity of the signal after the Re-Driver.
A low-level input signal detection and output squelch function
is provided for all four channels. Each channel operates fully
independently. When a channel is enabled (EN_x=1) and
operating, that channels input signal level (on xI+/-) determines
whether the output is enabled. If the input level of the channel
falls below the active threshold level (Vth-) then the outputs are
driven to the common mode voltage.
In addition to providing signal re-conditioning, Pericom’s
PI2EQX3202B also provides power management Stand-by mode
operated by an Enable pin.
Block Diagram
CML
xI+
xI-
SEL [0:2]
EN_x
CKIN-
CKIN+
Signal Detection
LVCMOS
SD_x
Equalizer
Limiting
Amp
CML
xO+
xO-
Power
Management
SEL [2]_ x SEL [3]_ x
-- Repeated 2 times --
Buffer
IREF
OUT-
EN_ OUT+
CLK
Pin Description
1 2 3 4 5 6 7 8 9 10
A SD_C SD_D SEL0_A SEL0_B SEL4_A SEL4_B SEL6_A SEL6_B EN_A EN_B
B VDD
SD_B
VDD SEL1_A SEL2_A SEL3_A SEL5_A VDD
EN_C
VDD
C BO+
SD_A
AI+ SEL1_B SEL2_B SEL3_B SEL5_B
BI+
EN_D AO+
D BO–
VDD
AI–
E GND VDD GND
F VDD GND VDD
G DO+ SEL0_C CI+
84-Ball LFBGA
BI–
GND
AO–
GND
GND
GND
VDD GND VDD
DI+ SEL6_C CO+
H DO– SEL0_D CI–
VDD CKIN+ CKIN– GND
DI– SEL6_D CO–
J GND SEL1_C GND SEL2_C SEL2_D SEL3_D IREF
GND SEL4_D GND
K EN_CLK SEL1_D SEL3_C SEL4_C OUT0+ OUT0– OUT1+ OUT1– SEL5_C SEL5_D
08-0103
1
PS8885G
04/30/08

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