IP, 4K/UHD & HDR test & measurement challenges explained - - PowerPoint PPT Presentation

▶
ip 4k uhd hdr
SMART_READER_LITE
LIVE PREVIEW

IP, 4K/UHD & HDR test & measurement challenges explained - - PowerPoint PPT Presentation

Nov 08, 2022 321 likes •606 views

IP, 4K/UHD & HDR test & measurement challenges explained Phillip Adams, Managing Director So what are the big challenges facing the industry? HD UHD Higher bandwidths for immersive 4K/UHD HDR/WCG gaining momentum uptake by HD +

slide-1
SLIDE 1

IP, 4K/UHD & HDR

test & measurement challenges explained

Phillip Adams, Managing Director

slide-2
SLIDE 2

So what are the big challenges facing the industry?

slide-3
SLIDE 3

HD → UHD

Higher bandwidths for immersive 4K/UHD

slide-4
SLIDE 4

HDR/WCG gaining momentum

uptake by HD + UHD broadcasters

slide-5
SLIDE 5

SMPTE ST 2022-6 | SMPTE ST 2110 IP fast gaining maturity

Greater scalability, more flexible business models

slide-6
SLIDE 6

IP

SMPTE ST 2022-6 SMPTE ST 2110

4K/UHD-SDI

12G/6G/3G

HDR / WCG

12G/6G/3G/HD

New, smarter test & measurement tools

It’s a Hybrid World!

slide-7
SLIDE 7

HD → UHD (12G-SDI) transition Monitoring & compliance challenges

slide-8
SLIDE 8

What’s to be covered

  • What’s driving UHD?
  • What’s happening with the key IP standards?
  • Key compliance & signal quality challenges?
  • What’s needed for test & measurement?
slide-9
SLIDE 9

Drivers behind UHD

  • Demand for more engaging

content to differentiate services

  • Rising consumer expectations
  • New & ubiquitous UHD TVs
  • Government promotion in Asia
  • Industry pushes like ATSC 3.0
  • 12G-SDI enables UHD within

traditional broadcast architecture Premier content like sports and movies leading roll out

slide-10
SLIDE 10

UHD the challenges

  • Proliferation of new standards & formats
  • Managing UHD payloads – 12G SDI,

multiple links

  • Maintaining UHD signal integrity –

complex & unforgiving

slide-11
SLIDE 11

Proliferation of UHD standards

Video Standards

  • ST2036-1:2014 UHDTV – Image Parameter Values for Program Production
  • ST2036-2:2008 UHDTV – Audio Characteristics and Audio Channel Mapping for Program Production
  • ST2048-1:2011 Digital Cinematography Production Image Formats
  • ST424:2012

3 Gb/s Signal/Data Serial Interface

  • ST425-1:2014 Source Image Format and Ancillary Data Mapping for 3Gbps SDI
  • ST425-3:2014 Source Image Format and Ancillary Data Mapping for Dual link 3Gbps SDI
  • ST425-5:2014 Source Image Format and Ancillary Data Mapping for Quad link 3Gbps SDI
  • ST2081-1:2015 6 Gb/s Signal/Data Serial Interface – Electrical
  • ST2081-10:2015 2160-Line and 1080-Line Source Image and Ancillary Data Mapping for Single-Link 6G-SDI
  • ST2081-11:2016 2160-line Source Image and Ancillary Data Mapping for Dual link 6G-SDI
  • ST2081-12:2016 4320-line and 2160-line Source Image and Ancillary Data Mapping for Quad-link 6G-SDI
  • ST2082-1:2015 12 Gb/s Signal/Data Serial Interface — Electrical
  • ST2082-10:2015 2160-line Source Image and Ancillary Data Mapping for 12G-SDI
  • ST2082-11:2016 4320-line and 2160-line Source Image and Ancillary Data Mapping for Dual-link 12G-SDI
  • ST2082-12:2016 4320-line and 2160-line Source Image and Ancillary Data Mapping for Quad-link 12G-SDI
  • ITU-R BT.2077-0 Part 3 (Real-time SDI for UHDTV signals)
slide-12
SLIDE 12

… and more standards

Audio Standards

  • ST272M:2004 SD-SDI 16 channel audio
  • ST299-1:2009 HD-SDI 16 channel audio
  • ST299-2:2010 HD-SDI 16 additional channels for 3G SDI (ST 425 Level A)

HDR Standards

  • ARIB STD-B67 Hybrid Log Gamma (BBC/NHK)
  • ST2084:2014 High Dynamic Range Electro-Optical Transfer Function of Mastering

Reference Displays (Dolby)

  • S-Log3 (Sony)

ITU standards

  • ITU-R BT.601 (Parameter values for SDTV systems)
  • ITU-R BT.709 (Parameter values for HDTV systems)
  • ITU-R BT.2020-1 (Parameter values for UHDTV systems)
slide-13
SLIDE 13

Pixels Lines Frames 10b 4:2:2/4:2:0 (Gbps) 10b 4:4:4(:4) (Gbps) 12b 4:4:4 (Gbps) 12b 4:2:2(:4) (Gbps) 7680 4320 120/119.88 80 160 160 160 7680 4320 100 67 133 133 133 7680 4320 60/59.94 40 80 80 80 7680 4320 50 34 67 67 67 7680 4320 30/29.97 20 40 40 40 7680 4320 25 17 34 34 34 7680 4320 24/23.98 16 32 32 32 3840 2160 120/119.88 20 40 40 40 3840 2160 100 17 34 34 34 3840 2160 60/59.94 10 20 20 20 3840 2160 50 9 17 17 17 3840 2160 30/29.97 5 10 10 10 3840 2160 25 5 9 9 9 3840 2160 24/23.98 4 8 8 8

UHDTV1/4K UHDTV2/8K

UHD payloads explained

slide-14
SLIDE 14

Pixels Lines Frames 10b 4:2:2/4:2:0 (Gbps) 10b 4:4:4(:4) (Gbps) 12b 4:4:4 (Gbps) 12b 4:2:2(:4) (Gbps) 7680 4320 120/119.88 80 [8] 160 [16] 160 [16] 160 [16] 7680 4320 100 67 [8] 133 [16] 133 [16] 133 [16] 7680 4320 60/59.94 40 [4] 80 [8] 80 [8] 80 [8] 7680 4320 50 34 [4] 67 [8] 67 [8] 67 [8] 7680 4320 30/29.97 20 [2] 40 [4] 40 [4] 40 [4] 7680 4320 25 17 [2] 34 [4] 34 [4] 34 [4] 7680 4320 24/23.98 16 [2] 32 [4] 32 [4] 32 [4] 3840 2160 120/119.88 20 [2] 40 [4] 40 [4] 40 [4] 3840 2160 100 17 [2] 34 [4] 34 [4] 34 [4] 3840 2160 60/59.94 10 [1] 20 [2] 20 [2] 20 [2] 3840 2160 50 9 [1] 17 [2] 17 [2] 17 [2] 3840 2160 30/29.97 5 [1] 10 [1] 10 [1] 10 [1] 3840 2160 25 5 [1] 9 [1] 9 [1] 9 [1] 3840 2160 24/23.98 4 [1] 8 [1] 8 [1] 8 [1]

UHDTV1/4K UHDTV2/8K

Table Entries: Mapped Video Payload in Gbps [number of 12Gbps links required]

UHD payloads explained

slide-15
SLIDE 15

Pixels Lines Frames 10b 4:2:2/4:2:0 (Gbps) 10b 4:4:4(:4) (Gbps) 12b 4:4:4 (Gbps) 12b 4:2:2(:4) (Gbps) 7680 4320 120/119.88 80 [8] 160 [16] 160 [16] 160 [16] 7680 4320 100 67 [8] 133 [16] 133 [16] 133 [16] 7680 4320 60/59.94 40 [4] 80 [8] 80 [8] 80 [8] 7680 4320 50 34 [4] 67 [8] 67 [8] 67 [8] 7680 4320 30/29.97 20 [2] 40 [4] 40 [4] 40 [4] 7680 4320 25 17 [2] 34 [4] 34 [4] 34 [4] 7680 4320 24/23.98 16 [2] 32 [4] 32 [4] 32 [4] 3840 2160 120/119.88 20 [2] 40 [4] 40 [4] 40 [4] 3840 2160 100 17 [2] 34 [4] 34 [4] 34 [4] 3840 2160 60/59.94 10 [1] 20 [2] 20 [2] 20 [2] 3840 2160 50 9 [1] 17 [2] 17 [2] 17 [2] 3840 2160 30/29.97 5 [1] 10 [1] 10 [1] 10 [1] 3840 2160 25 5 [1] 9 [1] 9 [1] 9 [1] 3840 2160 24/23.98 4 [1] 8 [1] 8 [1] 8 [1]

UHDTV1/4K UHDTV2/8K

48G payload (4x 12G-SDI) 24G payload (2x 12G-SDI) 12G payload (1x 12G-SDI) 6G payload (1x 6G-SDI) Table Entries: Mapped Video Payload in Gbps [number of 12Gbps links required]

UHD payloads explained

slide-16
SLIDE 16

SMPTE: Maintaining UHD signal integrity

Data Rate 1.485 Gbps 2.97 Gbps 5.94 Gbps 11.88 Gbps

Standard SMPTE ST292-1:2012 SMPTE ST424:2012 SMPTE ST2081-1:2015 SMPTE ST2082-1:2015 Coding Scrambled NRZI Scrambled NRZI Scrambled NRZI Scrambled NRZI Amplitude 800 mV +/- 10% 800 mV +/- 10% 800 mV +/- 10% 800 mV +/- 10% DC Offset 0.0 V +/- 0.5 V 0.0 V +/- 0.5 V 0.0 V +/- 0.5 V 0.0 V +/- 0.5 V Rise / Fall time < 270 ps < 135 ps < 80 ps < 45 ps Rise / Fall time difference < 100 ps < 50 ps < 35 ps < 18 ps Over/Under-shoot <10% of the amplitude <10% of the amplitude <10% of the amplitude <10% of the amplitude Timing Jitter (colour bar test signal) < 1 UI (10 Hz to 148.5 MHz) < 2 UI (10 Hz to 297 MHz) < 4 UI (10 Hz to 594 MHz) < 8UI (10 Hz to 1188 MHz) Alignment Jitter (colour bar test signal) < 0.2 UI (100 kHz to 148.5 MHz) < 0.3 UI < 0.2 UI recommended (100 kHz to 297 MHz) < 0.3 UI < 0.2 UI recommended (100 kHz to 594 MHz) < 0.3 UI < 0.2 UI recommended (100 kHz to 1188 MHz) Coaxial cable length (Belden 1694A) 200 m 200 m 100 m 70 m Coaxial cable length (Canare L-5.5CUHD) 100 m

slide-17
SLIDE 17

Belden 1694A

  • Designed for 3G-SDI
  • Works with 12G-SDI to 70m on the

present chipsets

  • 100m on next generation chipsets

Canare L-5.5CUHD

  • Designed for 12G-SDI
  • Works with 12G-SDI to 100m on the

present chipsets

  • 125m on next generation chipsets

Maintaining UHD signal integrity: cables

slide-18
SLIDE 18

UHD (12G-SDI)

Adapting test & measurement tools for UHD (12G-SDI)

slide-19
SLIDE 19

New test & measurement tools for UHD (12G-SDI)

  • Stress testing systems

with Pathological signals

  • Physical layer testing with

Eye & Jitter

slide-20
SLIDE 20

Physical layer testing is especially important with 12G-SDI in view of the greater cable length sensitivity & unforgiving nature of UHD

“ ”

Eye & Jitter testing for UHD (12G-SDI)

slide-21
SLIDE 21

Real time, multi rate eye RTETM, 12G, 6G, 3G, HD-SDI >30GHz analogue bandwidth (5x 6GHz fundamental)

SMPTE compliance measurements:

  • Eye Amplitude
  • DC offset
  • Overshoot/Undershoot
  • Rise Time/Fall Time
  • Timing/Alignment Jitter
  • H and V Histograms

Instant, accurate readings

RTETM 12G Eye & Jitter analysis for UHD

slide-22
SLIDE 22

Jitter analysis for UHD (12G-SDI)

  • Monitor Jitter in 5 specified

frequency bands

  • Filter frequencies simultaneously
  • High frequencies most important
  • This isn’t the whole story, check

eye pattern for higher frequency jitter – above 20MHz SMPTE RP184-2015: Specification of Jitter in Bit-Serial Digital Systems SMPTE RP192-2015: Jitter Measurement Procedures In Bit-Serial Digital Interfaces

slide-23
SLIDE 23

Jitter measurements – beware!

Be aware of instrument noise floors, filter pass band & cut-off rates, upper measurement limits, measurement algorithms & calibration Measurements taken from different instruments will be different

slide-24
SLIDE 24

SMPTE RP 198-1998 Pathological signals are recommended by SMPTE for use with SD, HD & 3G standards only Not yet approved by SMPTE for 6G

  • r 12G-SDI

… may take a few more years for approval!

Pathological signals for UHD (6G and 12G-SDI)

Established method adopted for the stress testing of SDI interfaces

slide-25
SLIDE 25

New pathological tools for Qx

With pathological patterns, the pathological signal only occurs statistically every 512 lines! A new tool will provide feedback of pathological conditions on the interface with GPI trigger output Checkfield, PLL and EQ testing

slide-26
SLIDE 26

Pathological Checkfield Overlay developed by PHABRIX with major SDI chip manufacturer co-

  • peration

Used to verify how sensitive the SDI link is to pathological conditions on the interface

Pathological signals for UHD – PHABRIX solution

slide-27
SLIDE 27

Questions?