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Pericom Semiconductor Corporation

PI3EQX3811C Datasheet Preview

PI3EQX3811C Datasheet

1-Port SATA2 I/m ReDriver

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Features
• SATA i/m output drive
• Two 3.2Gbps differential signal pairs
• Adjustable Output Emphasis
• 100-Ohm Differential CML I/O’s
• Input signal level detect and squelch for each channel
• OOB fully supported
• Low Power (180mW per Channel)
• Stand-by Mode – Power Down State
• VDD Operating Range: 3.3V ± 10%
• Packaging (Pb-free & Green):
20-lead SSOP
PI3EQX3811C
3.3V, 1-Port, SATA2 i/m ReDriver
with Equalization and Output Emphasis
Description
Pericom Semiconductor’s PI3EQX3811C ReDriver is a low-
power signal conditioner. The device provides programmable
output emphasis by using 2 select bits, EMA and EMB, to
optimize performance over a variety of physical mediums by
reducing Inter-Symbol Interference. PI3EQX3811C supports
two 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 ReDriver. Whereas the
integrated de-emphasis circuitry provides exibility with signal
integrity of the signal after the ReDriver.
A low-level input signal detection and output squelch function
is provided for each channel. Each channel operates fully
independently. When the channels are enabled (EN=1) and
operating, a channel’s 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
PI3EQX3811C also provides power management Stand-by
mode operated by the Enable pin.
Block Diagram
Signal Detection
CML
xl+
xl-
Equalizer
Limiting
Amp
- Repeated 2 times -
Power
EN Management
09-0046
Pin Description (Top-Side view)
CML
xO+
xO-
EMx
1
EMA
VDD
AI+
AI-
GND
VDD
BO+
BO-
GND
EMB
1
2
3
4
5
6
7
8
9
10
20 EN
19 VDD
18 AO+
17 AO-
16 GND
15 VDD
14 BI+
13 BI-
12 GND
11 NC
PS9033A
03/09/09




Pericom Semiconductor Corporation

PI3EQX3811C Datasheet Preview

PI3EQX3811C Datasheet

1-Port SATA2 I/m ReDriver

No Preview Available !

www.DataSheet4U.com
PI3EQX3811C
3.3V, 1-port, SATA2 i/m ReDriver
with Equalization and Output Emphasis
Pin Description
Pin #
3
4
Pin Name
AI+
AI-
18 AO+
17 AO-
14 BI+
13 BI-
7 BO+
8 BO-
20 EN
5, 9, 12, 16
1
10
2, 6, 15, 19
11
GND
EMA
EMB
VDD
NC
I/O
I
I
O
O
I
I
O
O
I
PWR
I
I
PWR
-
Description
CML Inputs Channel A with internal 50-Ohm pull-up to internal bias voltage
CML Outputs Channel A with internal 50-Ohm pull-up to internal bias voltage
CML Inputs Channel B with internal 50-Ohm pull-up to internal bias voltage
CML Outputs Channel B with internal 50-Ohm pull-up to internal bias voltage
EN is the enable pin with 50K-Ohm internal pull-up to VDD. A LVCMOS high pro-
vides normal operation. A LVCMOS low selects a low power down mode.
Supply Ground
Selection pins for output emphasis level (see Output Emphasis Selection Table),
with 50k-Ohm internal pull-up to VDD.
3.3V ±10% Supply Voltage
Do Not Connect
Output Emphasis Selection
EMx
0
Emphasis Level
0dB
1 3dB
09-0046
2
PS9033A
03/09/09


Part Number PI3EQX3811C
Description 1-Port SATA2 I/m ReDriver
Maker Pericom Semiconductor Corporation
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Pericom Semiconductor Corporation





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