HDMI 2.0 Souce/Sink Impedance Compliance Test Solution

High-Definition Multimedia
Interface (HDMI) 2.0
Source/Sink Impedance
Compliance Tests
Test Solution Overview Using the
Agilent E5071C ENA Option TDR
Last update: 2014/06/02 (HK)
Purpose
This slide will show how to make measurements of High-Definition
Multimedia Interface (HDMI) 2.0 Source/Sink Impedance Compliance
Tests using the Agilent E5071C ENA Option TDR.
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• VESA, Board of Directors, Brian Fetz
• MIPI, Contributing Member, Roland Scherzinger
• HDMI, Contributing Member, Stefan Friebe
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• IEEE 802.3 Ethernet, Greg Le Cheminant
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HDMI 2.0 test solution overview from Agilent
Source Test
N5399C HDMI Electrical
Compliance Test Software
SW
HW
Cable
Assembly
Test
(HDMI 1.4b)
Sink Test
(ParBERT)
Sink Test
(AWG)
Protocol
Test
N5990A Automatic SW
for HDMI compliance
N5990A Automatic SW
for HDMI compliance
U4998A SW for
HDMI compliance
E5071C Option TDR
ENA Network Analyzer
DSO90000A
Infiniium
real time
scope
13 GHz
U4998A (N5998A)
HDMI 1.4
protocol analyzer/
generator
E4887A
ParBERT
TMDS Signal
Generator
M8190A AWG
Protocol Test
on U4998A is
supported up
to HDMI 1.4b
new
Cable Emulator
Signal
Conditioning
Fixture
BIT-1010-0200-0
DUT
N1080B
BIT-1010-0201-0
Tx
BIT-1010-0201-0
Rx
Source
Cable
Sink
Rx
Sink
For HDMI 2.0
third party
protocol
testers are
Txsupported in
Valiframe SW
Source
Rx
Reference Document
• High-Definition Multimedia Interface (HDMI) Specification Version 2.0
• High-Definition Multimedia Interface (HDMI) Version 2.0 Compliance Test
Specification
HDMI 2.0 Compliance Test – TMDS Electrical Tests
HF1-9 (Source) and HF2-4 (Sink)
Differential Impedance are measured
with TDR/TDT Network Analyzer
 Source TMDS Electrical 6G Tests
1
VL and Vswing
2
TRISE, TFALL
…
9
Differential Impedance
Other Source TMDS Electrical
test items are measured with
Digital Oscilloscope
…
 Sink TMDS Electrical 6G Tests
1
Min/Max Differential Swing Tolerance
2
Intra-Pair Skew
…
4
…
Differential Impedance
Other Sink TMDS Electrical
test items are measured with
Signal Generator
HDMI Source/Sink Impedance Compliance Test
Measurement Parameters
Time Domain Measurements
• HF1-9: Source TMDS Electrical – 6G – Differential Impedance
• HF2-4: Sink TMDS Electrical – 6G – Differential Impedance
HDMI Source/Sink Impedance Compliance Test
Test Setup Example - Source TMDS Differential Impedance Measurement
• Measure source impedance characteristics on each TMDS data
differential pairs: D0, D1, and D2 under actual operating condition.
•
•
•
•
•
•
Differential SMA Adapter (Agilent N5380B) [Qty 3]
Power Supply (e.g., Agilent E3630A, E3640A) [Qty 1]
Banana-BNC(f) Adapter (e.g., Agilent P/N 1251-2277) [Qty 2]
BNC Tee Adapter(f-m) (e.g., Agilent P/N 1250-0781) [Qty 1]
BNC Cable(m-m) (e.g., Agilent P/N 8120-1838) [Qty 3]
BNC(f)-SMA(m) Adapter (e.g., Agilent P/N 1250-1200) [Qty 3]
HDMI Source/Sink Impedance Compliance Test
Configuration
•ENA Mainframe (*1)
•E5071C-285/485: 2/4-port, 100 k to 8.5 GHz
•E5071C-2D5/4D5: 2/4-port, 300 k to 14 GHz
•E5071C-2K5/4K5: 2/4-port, 300 k 20 GHz
•Enhanced Time Domain Analysis Option
(E5071C-TDR)
•ECal Module
HDMI Test Fixtures
Agilent
• N1080B-H06 HDMI EDID Board
•N4431B for E5071C-285/485
•N4433A for E5071C-2D5/4D5/2K5/4K5
*1: Select one of test set options.
*2: The list above includes the major equipment required. Please contact our
sales representative for configuration details.
+
• Method of Implementation (MOI)
document available for download on
HDMI Adopter Extranet (you must be a
current adopter).
• State files for the ENA Option TDR
are available on Agilent Website.
• For more details:
www.agilent.com/find/ena-tdr_hdmi-txrx
MOI
(Method of Implementation)
Step-by-step procedure on
how to measure the specified
parameters in the
specification document using
ENA Option TDR.
BitifEye (Type A or Type D)
• BitifEye Bit-1010-0200-0 HDMI 2.0
Type A Source Test Plug Adapter Kit
or
• BitifEye Bit-1010-0275-0 HDMI 2.0
Type D Test Plug Adapter Kit
HDMI Source/Sink Impedance Compliance Test
Measurement Example
• Source differential impedance measurement example while
the DUT outputs 6Gbps signal (actual operating condition).
Differential
Impedance
Differential
Return Loss
Hot TDR Measurements
Why Measure?
•Hot TDR measurement is the impedance analysis of active devices under actual
operation conditions.
•Typically, impedance of the device in the OFF state and ON state (Hot TDR) is
significantly different. Impedance may vary with the data rate as well.
TDR(Time Domain)
Return Loss (Freq Domain)
1333Mbps (active)
dB
ohm
OFF
334Mbps (active)
1G
666M
2G
3G
4G
5G
6G
freq(Hz)
11
Hot TDR Measurements
Why Measure?
1. Signal transmitted from Tx …
Tx
3. Re-reflection
from Tx due to
impedance
mismatches ...
Channel
Eye
Degradation
Rx
2. Partial reflection
from Rx due to
impedance
mismatches …
12
Hot TDR Measurements
Why Measure?
Source Termination Effects
Source Impedance NOT Matched
Source Impedance Matched
13
Advantages of VNA Based Solution
Tx
Test signal level is adjustable.
t
t
t
Narrowband receiver minimizes the effects
of the data signal from the transmitter
fc
freq
Internal bias-tee is available
to apply DC Bias.
+3.3V
time
In many cases, averaging is
not necessary to obtain a
stable waveform.
14
Advantages of VNA Based Solution
ESD Robustness
ENA has ESD protection circuits inside
ESD Survival:
IEC 801-2 Human Body Model. (150 pF,
330 Ω) RF Output Center
pins tested to 3,000 V, 10 cycles
Proprietary ESD protection
chip significantly increase
ESD robustness, while at the
same time maintaining
excellent RF performance
(22ps rise time for 20GHz
models).
15
Agilent HDMI Compliance Test Solutions
Electrical / Cable Assembly
Source/Sink (HDMI 2.0)
DSO90000A Infiniium

Digital Oscilloscope
Source Test (HF1-x)

TDR/TDT Network Analyzer
Source Test (HF1-9), E5071C ENA Option TDR
and Sink Test (HF2-4)

TMDS Signal Generator
Sink Test (HF2-x)
E4887A ParBERT
M8190A AWG
Cable Assembly (HDMI 1.4b*)

TDR/TDT Network Analyzer
Cable Assembly Test E5071C ENA Option TDR
* HDMI 2.0 features will work with existing HDMI
cables (Category 2 cables defined in HDMI 1.4b).
ENA Option TDR Compliance Test Solution
Certified MOIs available at www.agilent.com/find/ena-tdr_compliance
Cable/Connector/Interconnect
Transmitter/Receiver (Hot TDR/Hot Return Loss)
10GBASE-KR/
40GBASE-KR4
Time
&
Frequency
Frequency
Time
&
Frequency
Time
&
Frequency
100BASE-TX
10GBASE-T
Time
&
Frequency
Time
&
Frequency
Time
&
Frequency
Time
&
Frequency
Frequency
*
Time
&
Frequency
Time
&
Frequency
Time
10GBASE-KR
Time
&
Frequency
BroadR-Reach
Time
&
Frequency
Time
&
Frequency
*
More Standards
Currently Under
Investigation
* For more detail about Thunderbolt and BroadR-Reach compliance test solution using the ENA Option TDR, contact Agilent sales representative.
17
ENA Option TDR Compliance Test Solution
Certified Test Centers using ENA Option TDR
Test Centers Support ENA Option TDR
ENA Option TDR is used world wide by certified test centers of USB, HDMI,
DisplayPort, MHL, Thunderbolt and SATA.
18
HDMI Compliance Test Solution
Summary
ENA Option TDR Compliance Testing Solution is ….
•One-box solution which provides complete characterization of high speed digital
interconnects (time domain, frequency domain, eye diagram)
•Similar look-and-feel to traditional TDR scopes, providing simple and intuitive
operation even for users unfamiliar to VNAs and S-parameters
•Adopted by test labs worldwide
Questions?
Agilent VNA Solutions
PNA-X, NVNA
Industry-leading performance
10 M to 13.5/26.5/43.5/50/67 GHz
Banded mm-wave to 2 THz
PNA
Performance VNA
10 M to 20, 40, 50, 67, 110 GHz
Banded mm-wave to 2 THz
PNA-L
World’s most capable value VNA
300 kHz to 6, 13.5, 20 GHz
10 MHz to 40, 50 GHz
E5072A
FieldFox
Best performance
ENA
30 kHz to 4.5, 8.5
GHz
E5071C
World’s most popular
economy VNA
9 kHz to 4.5, 8.5 GHz
300 kHz to 20.0 GHz
E5061B
NA + ZA in one-box
5 Hz to 3 GHz
Low cost RF VNA
100 k to 1.5/3.0 GHz
Handheld RF
Analyzer
5 Hz to 4/6 GHz
ENA Series
Mm-wave
solutions
Up to 2 THz
PNA-X
receiver
8530A replacement
PNA Series
What is ENA Option TDR?
The ENA Option TDR is an application software embedded on the
ENA, which provides an one-box solution for high speed serial
interconnect analysis.
Time Domain
Frequency Domain
3 Breakthroughs
for Signal Integrity Design and Verification
Simple and Intuitive Operation
Eye Diagram
Fast and Accurate Measurements
ESD protection inside
ESD Robustness
What is ENA Option TDR?
[Video]
Agilent ENA Option TDR
Changing the world of Time Domain Reflectometry (TDR) Measurements
•www.youtube.com/watch?v=hwQNlyyJ5hI&list=UUAJAjd97CfnCehC4jZAfkxQ&index=20&feature=plcp
•www.agilent.com/find/ena-tdr
Additional Resources
•ENA Option TDR Reference Material
www.agilent.com/find/ena-tdr
•Technical Overview (5990-5237EN)
•Application Notes
•Correlation between TDR oscilloscope and VNA generated time domain waveform (5990-5238EN)
•Comparison of Measurement Performance between Vector Network Analyzer and TDR
Oscilloscope (5990-5446EN)
•Effective Hot TDR Measurements of Active Devices Using ENA Option TDR (5990-9676EN)
•Measurement Uncertainty of VNA Based TDR/TDT Measurement (5990-8406EN)
•Accuracy Verification of Agilent’s ENA Option TDR Time Domain Measurement using a NIST
Traceable Standard (5990-5728EN)
•Method of Implementation (MOI) for High Speed Digital Standards
www.agilent.com/find/ena-tdr_compliance
HDMI Compliance Test Solution Overview
Covered by ENA Option TDR
• ENA Option TDR Compliance Testing Solution is one-box solution
which provides complete characterization of interconnects:
Time Domain, Frequency Domain, and Eye Diagram Analysis
HDMI 1.4b
Cable Assembly*
HDMI 2.0
Source/Sink
Time
Domain
•Intra-Pair Skew
•Inter-Pair Skew
•Differential Impedance
•Differential Impedance
(HF1-9, HF2-4)
Frequency
Domain
•Far-end crosstalk
•Attenuation and Phase
n/a
•Data Eye Diagram
n/a
Eye Diagram
Analysis
* No new cable spec/test defined in HDMI 2.0.
One-box
Solution !!
HDMI 2.0 Measurement Example
次世代HDMIの測定チャレンジ
インピーダン
ス測定編
2013年10月1日
26
HDMI Source Impedance Measurement Example
HDMI data pattern
Tx
VNA output signal
t
t
t
Reflected signal
The transmitter spurs contribute significant
measurement errors, resulting in highly
unstable results. (same as sampling scope)
With wide IF BW:
Transmitter spurs
IF BW = 70kHz
freq
27
HDMI Source Impedance Measurement Example
HDMI data pattern
Tx
VNA output signal
t
t
t
Reflected signal
Narrow IFBW setting reduces the effects of the
transmitter spurs. In many cases, averaging is
not necessary to obtain a stable waveform.
With narrow IF BW:
IF BW = 1kHz
freq
28