DS38EP100 [TI]
适用于背板和电缆的 1 到 5Gbps 省电均衡器;
| 型号： | DS38EP100 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 适用于背板和电缆的 1 到 5Gbps 省电均衡器 电信 电信集成电路 |
| 文件： | 总17页 (文件大小：5968K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
DS38EP100
www.ti.com
SNLS278C –JULY 2007–REVISED APRIL 2013
DS38EP100 1 to 5 Gbps, Power-Saver Equalizer for Backplanes and Cables
Check for Samples: DS38EP100
1
FEATURES
DESCRIPTION
TI’s Power-saver equalizer compensates for
transmission medium losses and minimizes medium-
induced deterministic jitter. Performance is ensured
over the full range of 1 to 5 Gbps. The DS38EP100
requires no power to operate. The equalizer operates
anywhere in the data path to minimize media-induced
deterministic jitter in both FR4 and cable applications.
Symmetric I/O structures support full duplex or half
duplex applications. Linear compensation is provided
independent of line coding or protocol. The device is
ideal for both bi-level and multi-level signaling.
2
•
•
•
•
•
1 to 5 Gbps Operation
No Power or Ground Required
Equalization Effective Anywhere in Data Path
Equalizes CML, LV-PECL, LVDS Signals
Symmetric I/O Structures Provide Equal Boost
for Bi-directional Operation
•
•
•
7 dB Maximum Boost
Code Independent, 8b/10b or Scrambled
Supports Both Bi-level and Multi-level
Signaling
The equalizer is available in a 6 pin leadless WSON
package with a space saving 2.2 mm X 2.5 mm
footprint. This tiny package provides maximum
flexibility in placement and routing of the Power-saver
equalizer.
•
•
•
•
Extends Reach Over Backplanes and Cables
Compatible with PCI-Express Gen1 and Gen2
Compatible with XAUI
Operates in Series with Existing Active
Equalizer
•
Easy to Handle 6 Pin WSON
Simplified Application Diagram
LINE CARD
Tx/Rx
DS38EP100
SWITCH CARD
Rx/Tx
IOA+
IOB+
Z
= 100W
Diff
IOA-
IOB-
PASSIVE BACKPLANE/CABLE INTERCONNECT
DS38EP100
IOA+
IOB+
Tx/Rx
Z
= 100W
Z
Diff
= 100W
Rx/Tx
Diff
IOA-
IOB-
NOTE
The DS38EP100 provides the flexibility of passing the data from either side of the device.
It can be placed anywhere in the data path..
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2013, Texas Instruments Incorporated
DS38EP100
SNLS278C –JULY 2007–REVISED APRIL 2013
www.ti.com
PIN DESCRIPTIONS
Pin Name
Pin Number
I/O, Type
Description
High Speed Differential I/O
IOA-
IOA+
3
1
I/O
I/O
N/A
Symmetric differential I/O.
Symmetric differential I/O.
IOB-
IOB+
4
6
NC
2, 5
Reserved.
Exposed
Pad
DAP
Do not connect.
Pin Diagram
IOA+ NC
IOA-
3
1
2
DAP - NC
5
6
4
IOB+ NC
IOB-
2.2mm × 2.5mm 6-Pin WSON Package
Bottom View
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to the MOS gates.
(1)(2)
Absolute Maximum Ratings
INPUT/OUTPUT
(IOA+ and IOB+) or (IOA- and IOB-)
(IOA+ and IOA-) or (IOB+ and IOB-)
(IOA+ and IOB-) or (IOA- and IOB+)
Junction Temperature
+2V
+4V
+4V
+150°C
Storage Temperature
−65°C to +150°C
Lead Temperature
Soldering, 4 sec
+260°C
ESD Rating
HBM, 1.5 kΩ, 100 pF
1.3kV
(1) “Absolute Maximum Ratings” indicate limits beyond which damage to the device may occur, including inoperability and degradation of
device reliability and/or performance. Functional operation of the device and/or non-degradation at the Absolute Maximum Ratings or
other conditions beyond those indicated in the Recommended Operating Conditions is not implied. The Recommended Operating
Conditions indicate conditions at which the device is functional and the device should not be operated beyond such conditions.
(2) If Military/Aerospace specified devices are required, please contact the TI Sales Office/Distributors for availability and specifications.
Recommended Operating Conditions
Min
−40
1
Typ
Max
+85
5
Units
°C
Operating Temperature
Bit Rate
25
Gbps
2
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DS38EP100
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SNLS278C –JULY 2007–REVISED APRIL 2013
(1)
Electrical Characteristics
Over recommended operating conditions unless other specified. All parameters are ensured by test, statistical analysis or
design.
Typ
Symbol Parameter
Conditions
Min
Max
Units
(2)
(3)
VIN
Input voltage swing
Equalization
Differential input return 100 MHz – 2.5 GHz, with fixture's effect de-
See
1000
6
3600
mVp-p
dB
2.5 GHz relative to 100MHz
15
15
dB
dB
Ω
RLI
RLO
RIN
RO
loss
embedded
Differential output
return loss
100 MHz – 2.5 GHz, with fixture's effect de-
embedded. IOA+,or IOB+ = static high.
Differential across IOA+ and IOA-, or IOB+ and
IOB-, ZLOAD = 100Ω
100
100
Input Impedance
Differential across IOA+ and IOA-, or IOB+ and
IOB-, ZSOURCE = 100Ω
Ω
Output Impedance
Through Response
Resistance IOA+ to
Relative to ideal load, see Figure 2 for setup
See Figure 3 and Table 1 for limits
150
R1
R2
R3
Ω
Ω
Ω
IOA- and IOB+ to IOB- No load, high impedance on all ports
Resistance IOA+ to
50
IOB+ and IOA- to IOB- No load, high impedance on all ports
Resistance IOA+ to
150
IOB- and IOA- to IOB+ No load, high impedance on all ports
DC Gain
0.4
0.1
(IOA/IOB or IOB/IOA)
ZLOAD = 100Ω
2.5 Gbps, 40 in of 6mil microstrip FR4
Residual deterministic
jitter
DJ1
DJ2
DJ3
DJ4
UIp-p
UIp-p
UIp-p
UIp-p
(4)
See
3.125 Gbps, 40 in of 6mil microstrip FR4
Residual deterministic
jitter
0.1
0.1
0.1
0.15
0.15
(4) (5)
See
3.8 Gbps, 40 in of 6mil microstrip FR4
Residual deterministic
jitter
(4) (5)
See
5 Gbps, 30 in of 6mil microstrip FR4
Residual deterministic
jitter
(4)
See
(1) The Electrical Characteristics tables list ensured specifications under the listed Recommended Operating Conditions except as
otherwise modified or specified by the Electrical Characteristics Conditions and/or Notes. Typical specifications are estimations only and
are not ensured.
(2) Typical values represent most likely parametric norms, TA = +25 degC, and at the Recommended Operating Conditions at the time of
product characterization and are not ensured.
(3) Differential signal to Equalizer, measured at the input to a transmission line, see point A of Figure 1. The transmission line is Z0 = 100Ω,
6-mil, microstrip in FR4 material.
(4) Deterministic jitter is measured at the differential outputs (point C of Figure 1), minus the deterministic jitter before the test channel (point
A of Figure 1). Test pattern: PRBS- 7 .
(5) Specification is ensured by characterization and is not tested in production.
Copyright © 2007–2013, Texas Instruments Incorporated
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SNLS278C –JULY 2007–REVISED APRIL 2013
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Test Setup Diagrams
A
B
C
Test Board
FR4 Test Channel
0 in < L < 40 in
Signal Source
DS38EP100
Oscilloscope
= Edge-Mounted SMA Connector
Figure 1. Transient Test Setup Diagram
Ç 0.5 in DUAL 50W
MICROSTRIP LINE
Ç 0.5 in DUAL 50W
MICROSTRIP LINE
VNA Source
DS38EP100
VNA Detector
= Edge-Mounted SMA Connector
Figure 2. Frequency Response Test Circuit
Typical Equalizer Transfer Function
0
-1
-2
-3
-4
-5
-6
-7
-8
-9
0
1
2
3
4
5
6
7
8
9
10
FREQUENCY (GHz)
Figure 3. Typical Equalizer Transfer Function
4
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DS38EP100
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SNLS278C –JULY 2007–REVISED APRIL 2013
Table 1. Typical Through Response
Frequency (GHz)
DS38EP100 Attenuation Typ (dB)
0.1
0.5
1
-7.98
-5.93
-3.53
-2.25
-1.58
-1.14
-1.26
-1.54
-1.99
-2.62
-3.26
-3.61
-4.26
1.5
2
3
4
5
6
7
8
9
10
Block Diagram
Z3
IOA+
Z1
Z1
IOB+
Z2
A
B
IOA-
Z1
Z1
IOB-
Z3
Figure 4. Simplified Block Diagram
APPLICATION INFORMATION
DS38EP100 DEVICE DESCRIPTION
The DS38EP100 Power-Saver equalizer is a passive network circuit composed of resistive, capacitive, and
inductive components (See Figure 4). A differential bridged T-network compensates for the transmission medium
losses and minimizes medium-induced deterministic jitter with FR4 and cables. The equalizer attenuates low
frequency signals and is a bandpass filter at the resonant frequency. The response is linear and symmetric.
I/O TERMINATIONS
The DS38EP100 I/O impedance is 100Ω differential. The equalizer is designed for 100Ω-balanced differential
signals and is not intended for single-ended transmission.
LINEAR COMPENSATION
The unique linear compensation feature of the DS38EP100 combined with the tiny package allows maximum
flexibility in placement. The equalizer can be placed anywhere in the data path and will provide the same
compensation at the receiving circuit. (See Simplified Application Diagram)
SYMMETRIC I/O STRUCTURES
The symmetry of the passive equalization network allows bi-directional operation. Signals receive equal
compensation regardless of the direction of data flow. (See Figure 4).
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SNLS278C –JULY 2007–REVISED APRIL 2013
www.ti.com
PCB LAYOUT CONSIDERATIONS FOR DIFFERENTIAL PAIRS AND NO CONNECT PADS
The differential I/Os must have a controlled differential impedance of 100Ω. It is preferable to route all differential
lines exclusively on one layer of the board. The use of vias should be avoided if possible. If vias must be used,
they should be used sparingly and must be placed symmetrically for each side of a given differential pair.
Differential signals should be routed away from other signals and noise sources on the printed circuit board. Pin
2, Pin 5, and the center DAP have to be left as a no connect. Therefore, do not connect the landing pads of
these pins to the power or ground plane. See AN-1187 (SNOA401) for additional information on the WSON
package.
TYPICAL PERFORMANCE CHARACTERISTICS
0.5
0.4
0.3
0.2
0.1
0
0.5
0.4
0.3
0.2
0.1
0
2.5 Gbps
5 Gbps
Unequalized
3.8 Gbps
Unequalized
1.5 Gbps
Equalized
Equalized
0
10
20
30
40
50
60
0
10
20
30
40
50
60
FR4 LENGTH (in)
FR4 LENGTH (in)
Figure 5. Residual Deterministic Jitter
Figure 6. Residual Deterministic Jitter
vs.
vs.
FR4 Length
FR4 Length
1
1
Unequalized
0.8
0.6
0.4
0.2
0
0.8
0.6
0.4
0.2
0
Unequalized
3.8 Gbps
5 Gbps
1.5 Gbps
2.5 Gbps
Equalized
Equalized
0
10
20
30
40
50
60
0
10
20
30
40
50
60
FR4 LENGTH (in)
FR4 LENGTH (in)
Figure 7. Eye Height
vs.
Figure 8. Eye Height
vs.
FR4 Length
FR4 Length
6
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SNLS278C –JULY 2007–REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Typical Eye Diagrams — Includes Transmitter Setup, Interconnect, and Device Total Jitter
Figure 9. Unequalized Signal (40in FR4, 2.5Gbps, PRBS7)
Figure 10. Equalized Signal (40in FR4, 2.5Gbps, PRBS7)
Figure 11. Equalized Signal (Zoom) (40in FR4, 2.5Gbps,
PRBS7)
Figure 12. Unequalized Signal (40in FR4, 3.125Gbps,
PRBS7)
Figure 13. Equalized Signal (40in FR4, 3.125Gbps, PRBS7)
Figure 14. Equalized Signal (Zoom) (40in FR4, 3.125Gbps,
PRBS7)
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SNLS278C –JULY 2007–REVISED APRIL 2013
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TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Figure 15. Unequalized Signal (40in FR4, 3.8Gbps, PRBS7)
Figure 16. Equalized Signal (40in FR4, 3.8Gbps, PRBS7)
Figure 17. Equalized Signal (Zoom) (40in FR4, 3.8Gbps,
PRBS7)
Figure 18. Unequalized Signal (30in FR4, 4.25Gbps, PRBS7)
Figure 19. Equalized Signal (30in FR4, 4.25Gbps, PRBS7)
Figure 20. Equalized Signal (Zoom) (30in FR4, 4.25Gbps,
PRBS7)
8
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SNLS278C –JULY 2007–REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Figure 21. Unequalized Signal (30in FR4, 5Gbps, PRBS7)
Figure 22. Equalized Signal (30in FR4, 5Gbps, PRBS7)
Figure 23. Equalized Signal (Zoom) (30in FR4, 5Gbps,
PRBS7)
Figure 24. Unequalized Signal (34in Tyco XAUI Backplane,
3.125Gbps, PRBS7)
Figure 25. Equalized Signal (34in Tyco XAUI Backplane,
3.125Gbps, PRBS7)
Figure 26. Equalized Signal (Zoom) (34in Tyco XAUI
Backplane, 3.125Gbps, PRBS7)
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SNLS278C –JULY 2007–REVISED APRIL 2013
www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Figure 27. Unequalized Signal (5m 28AWG HDMI Cable,
3.4Gbps, PRBS7)
Figure 28. Equalized Signal (5m 28AWG HDMI Cable,
3.4Gbps, PRBS7)
Figure 29. Equalized Signal (Zoom) (5m 28AWG HDMI
Cable, 3.4Gbps, PRBS7)
Figure 30. Unequalized Signal (10m 26AWG HDMI Cable,
2.25Gbps, PRBS7)
Figure 31. Equalized Signal (10m 26AWG HDMI Cable,
2.25Gbps, PRBS7)
Figure 32. Equalized Signal (Zoom) (10m 26AWG HDMI
Cable, 2.25Gbps, PRBS7)
10
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SNLS278C –JULY 2007–REVISED APRIL 2013
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Figure 33. Unequalized Signal (10m 24AWG PCIe Cable,
Figure 34. Equalized Signal (10m 24AWG PCIe Cable,
2.5Gbps, PRBS7)
2.5Gbps, PRBS7)
Figure 35. Equalized Signal (Zoom) (10m 24AWG PCIe
Cable, 2.5Gbps, PRBS7)
Figure 36. Unequalized Signal (10m 24AWG PCIe Cable,
5Gbps, PRBS7)
Figure 37. Equalized Signal (10m 24AWG PCIe Cable,
5Gbps, PRBS7)
Figure 38. Equalized Signal (Zoom) (10m 24AWG PCIe
Cable, 5Gbps, PRBS7)
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SNLS278C –JULY 2007–REVISED APRIL 2013
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REVISION HISTORY
Changes from Revision B (April 2013) to Revision C
Page
•
Changed layout of National Data Sheet to TI format .......................................................................................................... 11
12
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PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status Package Type Package Pins Package
Eco Plan
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
Samples
Drawing
Qty
(1)
(2)
(3)
(4/5)
(6)
DS38EP100SD/NOPB
ACTIVE
WSON
NGF
6
1000 RoHS & Green
SN
Level-1-260C-UNLIM
-40 to 85
38S
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of <=1000ppm threshold. Antimony trioxide based
flame retardants must also meet the <=1000ppm threshold requirement.
(3) MSL, Peak Temp. - The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
(4) There may be additional marking, which relates to the logo, the lot trace code information, or the environmental category on the device.
(5) Multiple Device Markings will be inside parentheses. Only one Device Marking contained in parentheses and separated by a "~" will appear on a device. If a line is indented then it is a continuation
of the previous line and the two combined represent the entire Device Marking for that device.
(6)
Lead finish/Ball material - Orderable Devices may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two
lines if the finish value exceeds the maximum column width.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
Addendum-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
TAPE AND REEL INFORMATION
REEL DIMENSIONS
TAPE DIMENSIONS
K0
P1
W
B0
Reel
Diameter
Cavity
A0
A0 Dimension designed to accommodate the component width
B0 Dimension designed to accommodate the component length
K0 Dimension designed to accommodate the component thickness
Overall width of the carrier tape
W
P1 Pitch between successive cavity centers
Reel Width (W1)
QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE
Sprocket Holes
Q1 Q2
Q3 Q4
Q1 Q2
Q3 Q4
User Direction of Feed
Pocket Quadrants
*All dimensions are nominal
Device
Package Package Pins
Type Drawing
SPQ
Reel
Reel
A0
B0
K0
P1
W
Pin1
Diameter Width (mm) (mm) (mm) (mm) (mm) Quadrant
(mm) W1 (mm)
DS38EP100SD/NOPB
WSON
NGF
6
1000
178.0
12.4
2.8
2.5
1.0
8.0
12.0
Q1
Pack Materials-Page 1
PACKAGE MATERIALS INFORMATION
www.ti.com
9-Aug-2022
TAPE AND REEL BOX DIMENSIONS
Width (mm)
H
W
L
*All dimensions are nominal
Device
Package Type Package Drawing Pins
WSON NGF
SPQ
Length (mm) Width (mm) Height (mm)
210.0 185.0 35.0
DS38EP100SD/NOPB
6
1000
Pack Materials-Page 2
MECHANICAL DATA
NGF0006A
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