pi2eqx3421 Pericom Semiconductor Corporation, pi2eqx3421 Datasheet

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pi2eqx3421

Manufacturer Part Number
pi2eqx3421
Description
3.2gbps 2-channel Sata2/sas/xaui Redriver / Port Switch
Manufacturer
Pericom Semiconductor Corporation
Datasheet
Features
• Two 3.2Gbps differential signal
• Adjustable Receiver Equalization
• 100-Ohm Differential CML I/O’s
• Independant output level control
• Input signal level detect and squelch for each channel
• OOB support
• Low Power (100mW per Channel)
• Stand-by Mode – Power Down State
• V
• Packaging: — 28-TQFN (3.5x 5.5mm)
Block Diagram
CH_SEL
F_IN+
F_IN-
TEST#
R_OUT+
R_OUT-
CC
CE
R_ES
08-0102
Operating Range: 1.8V ±0.1V
CONTROL
LOGIC
F_EQ
SIGNAL
DETECT
EQUALIZER
SIGNAL
DETECT
LOGIC
RA_SD
RB_SD
EQUALIZER
DETECT
DETECT
SIGNAL
SIGNAL
FA_ES
FB_ES
RA_EQ
RB_EQ
RA_IN+
RA_IN-
RB_IN+
RB_IN-
F_SD
FA_OUT+
FA_OUT-
FB_OUT+
FB_OUT-
3.2Gbps, 1:2 Port Switch, SATA2/SAS Re-Driver
1
Description
Pericom Semiconductor’s PI2EQX3421 is a low power, signal
Re-Driver. The device provides programmable equalization,
to optimize performance over a variety of physical mediums
by reducing Inter-Symbol Interference. PI2EQX3421 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 fl exibility with
signal integrity of the signal input to re-driver.
A low-level input signal detection and output squelch function
is provided for each channel. Each channel operates fully
independantly. When the channels are enabled (CE=1) and
operating, that channels input signal level (on XIN+/-) determines
whether the output is enabled. If the input signal level of the
channel falls below the active threshold level (Vth-) then the
outputs are driven to the common mode voltage.
In addition to signal conditioning, Pericom’s PI2EQX3421 also
provides power management Stand-by mode operated by the
Chip Enable (CE) pin.
Pin Description (Top Side View)
R_OUT+
R_OUT-
RA_SD
RB_SD
F_IN+
F_SD
F_IN-
VDD
VDD
VDD
10
2
3
4
5
6
7
8
9
1
28
11
27
GND
12
26
13
25
14
23
21
19
18
17
16
15
24
22
20
PI2EQX3421
FA_OUT+
FA_OUT-
VDD
RA_IN+
RA_IN-
FB_OUT+
FB_OUT-
VDD
RB_IN+
RB_IN-
PS8972A
04/30/08

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pi2eqx3421 Summary of contents

Page 1

... CE 08-0102 3.2Gbps, 1:2 Port Switch, SATA2/SAS Re-Driver Description Pericom Semiconductor’s PI2EQX3421 is a low power, signal Re-Driver. The device provides programmable equalization, to optimize performance over a variety of physical mediums by reducing Inter-Symbol Interference. PI2EQX3421 supports two 100-Ohm Differential CML data I/O’s between the Protocol ASIC to a switch fabric, across a backplane extend the signals across other distant data pathways on the user’ ...

Page 2

... With internal 50K-Ohm pull-up resistor. Input CML input channel RB with internal 50-Ohm pull down. Output Signal detector for Channel RB_IN. Provides "high" when signal is detected. Output CML output channel R with internal 50-Ohm pull up. Power 1.8V supply Voltage. 2 PI2EQX3421 3.2 Gbps, 1:2 Port Switch, SATA2/SAS ReDriver Description PS8972A 04/30/08 ...

Page 3

... Output CML Buffer CE CH_SEL 08-0102 X_ES FA_OUT X VDD 0 VDD 1 VDD 0 VDD-0.6V 1 VDD-0.3V 3 PI2EQX3421 3.2 Gbps, 1:2 Port Switch, SATA2/SAS ReDriver FB_OUT R_OUT VDD VDD VDD-0.6V VDD-0.6V VDD-0.3V VDD-0.3V VDD VDD-0.6V VDD VDD-0.3V PS8972A 04/30/08 ...

Page 4

... CE = LVCMOS High Input to Output CH_Sel toggles Total Jitter PI2EQX3421 3.2 Gbps, 1:2 Port Switch, SATA2/SAS ReDriver Note: Stresses greater than those listed under MAX I MUM RAT- INGS may cause permanent damage to the de vice. This is a stress rating only and func tion tion of the device at these or any other conditions above those indicated in the operational sections of this spec i fi ...

Page 5

... PI2EQX3421 3.2 Gbps, 1:2 Port Switch, SATA2/SAS ReDriver Min. Typ. Max. Units 200 375 mVp-p 550 650 400 750 mV 1100 1300 V -0 -0.3 DD 150 Ohm 80 100 120 Ohm 0.3 4 0.65 × 0.35 × 250 μA 500 0.4 V 0.4 C Pericom PI2EQX3421 In Out PS8972A 04/30/08 ...

Page 6

... REF. Pericom Semiconductor Corporation http://www.pericom.com Tel: (408) 435-0800 • Fax: (408) 435-1100 DESCRIPTION: 28-Contact, Very Thin Quad Flat No-Lead, TQFN PACKAGE CODE: ZH Package Code ZH 6 PI2EQX3421 3.2 Gbps, 1:2 Port Switch, SATA2/SAS ReDriver DOCUMENT CONTROL NO 2034 REVISION: A DATE: 03/09/05 1.50 REF. Pin 28 Pin 1 2.00± ...

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