pi2eqx3201a Pericom Semiconductor Corporation, pi2eqx3201a Datasheet

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pi2eqx3201a

Manufacturer Part Number
pi2eqx3201a
Description
2-channel Sas/satax Redriver, With Equalization And Oob
Manufacturer
Pericom Semiconductor Corporation
Datasheet
Features
• Two 3.2Gbps differential signal
• Adjustable Transmiter De-Emphasis & Amplitude
• Adjustable Receiver Equalization
• One Spread Spectrum Reference Clock Buffer Output
• 100Ω Differential CML I/O’s
• Input signal level detect and squelch for each channel
• Low Power (100mW per Channel)
• Stand-by Mode – Power Down State
• V
• Built in Clock Buffer
• Packaging (Pb-free & Green):
Block Diagram
— 36-pad TQFN (ZF36)
CC
CML
xl+
xl-
CKIN -
CKIN+
SEL [0:1]
07-0029
Operating Range: 1.8V ±0.1V
Signal Detection
Equalizer
-- Repeated 2 Times --
Buffer
IREF
Limiting
Amp
SEL [2]_x
CLK
LVCMOS
SEL [3]_x
CML
OUT-
OUT+
SD-X
xO+
xO-
3.2Gbps 2 Differential Channel Serial Re-driver
1
with Equalization, de-emphasis and Squelch
Description
Pericom Semiconductor’s PI2EQX3201A is a low power, signal
re-driver. The device provides programmable equalization,
amplifi cation, and de-emphasis by using 4 select bits, SEL[0:
3], to optimize performance over a variety of physical mediums
by reducing Inter-Symbol Interference. PI2EQX3201A supports
two 100 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 before the re-driver. Whereas the
integrated de-emphasis circuitry provides fl 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
independantly. 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 output driver
switches off, and the pin is pulled to VDD via a high impedance
resistor.
In addition to providing signal re-conditioning, Pericom’s
PI2EQX3201A also provides power management Stand-by
mode operated by a Bus Enable pin.
Pin Description
GND
AV
GND
V
V
AI
AI
V
B
B
DD
DD
DD
0+
0-
+
-
DD
10
1
2
3
4
5
6
7
8
9
11
36
12
35
13
34
14
33
GND
15
32
16
31
17
PI2EQX3201A
30
18
29
28
27
26
25
24
23
22
21
20
19
PS8818F
A
V
A
GND
AGND
V
BI
BI
GND
IREF
0-
DD
0+
DD
+
-
02/09/07

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pi2eqx3201a Summary of contents

Page 1

... Differential Channel Serial Re-driver with Equalization, de-emphasis and Squelch Description Pericom Semiconductor’s PI2EQX3201A is a low power, signal re-driver. The device provides programmable equalization, amplifi cation, and de-emphasis by using 4 select bits, SEL[0: 3], to optimize performance over a variety of physical mediums by reducing Inter-Symbol Interference. PI2EQX3201A supports two 100 Differential CML data I/O’ ...

Page 2

... External 475Ω resistor connection to set the differential output current Signal Detect, output for channels A and B. Provides a LVCMOS high output when O a valid input signal is detected. When low, SD_X indicates that the input signal level is below the signal detect threshold level. 2 PI2EQX3201A Equalization, de-emphasis and Squelch Description PS8818F 02/09/07 ...

Page 3

... Exposure to absolute max i mum rating con di tions for ex- tended periods may affect re li abil i ty. Output De-emphasis Adjustment SEL3_[A: Compliance Channel 3 PI2EQX3201A Equalization, de-emphasis and Squelch De-emphasis 0dB -3.5dB PS8818F 02/09/07 ...

Page 4

... Differential Channel Serial Re-driver (V = 1.8 ±0.1V) DD Conditions EN = LVCMOS Low EN = LVCMOS High From input to output 50 MHz to 1.25 GHz EN_X = High Total Jitter Deterministic jitter FR4 A B SmA SmA Connector Connector PI2EQX3201A Equalization, de-emphasis and Squelch Min. Typ. Max. 0.1 0.3 2.0 12 0.200 150 50 200 80 100 120 0.3 0.2 1.5 ...

Page 5

... Using K28.7 (0011111000) pattern) . 07-0029 3.2Gbps 2 Differential Channel Serial Re-driver ( 70˚C) A Conditions Differential Swing | TX-D+ TX- TX-D+ TX-D- (1) 20% to 80% Single ended TX-DIFFP-P TX-D+ 5 PI2EQX3201A Equalization, de-emphasis and Squelch Min. Typ. Max. 400 650 0.3 150 100 120 75 200 - V | 800 1300 TX-D- 0.65 × ...

Page 6

... TLA and TLB are 3” transmission lines. 07-0029 3.2Gbps 2 Differential Channel Serial Re-driver (V = 1.8 ±0.1V Parameters (2) Rs 33Ω 5% TLA Rs 33Ω 5% TLB Rp Rp 49.9Ω 49.9Ω PI2EQX3201A Equalization, de-emphasis and Squelch (3) = 1.8 ±0.1V) DD Min Max. Units (1) 125 525 75 660 900 -200 200 550 250 45 55 Clock Clock# 2pF ...

Page 7

... Pericom Semiconductor Corporation • 1-800-435-2336 • www.pericom.com 07-0029 3.2Gbps 2 Differential Channel Serial Re-driver Equalization, de-emphasis and Squelch DESCRIPTION: 36-contact, Very Thin Fine Pitch Quad Flat No-Lead (TQFN) PACKAGE CODE: ZF36 DOCUMENT CONTROL #: PD-2023 Package Code ZF Pb-Free and Green 36-pad TQFN 7 PI2EQX3201A DATE: 4/28/06 REVISION: B Package Description PS8818F 02/09/07 ...

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