Protean Axiom
HAMLET PROTEAN Axiom
HAND HELD HDTV
SERIAL DIGITAL GENERATOR
OPERATOR'S HANDBOOK
© 2005 Hamlet Video International Ltd. All rights reserved
This handbook contains proprietary information of Hamlet Video International Limited and
may not be copied in whole or in part nor its contents disclosed to any third parties without
the express written consent of the company.
Hamlet Video International Limited
Maple House 11 Corinium Business Centre Raans Road Amersham Bucks HP6 6FB England
Main Line: +44 (0)1494 729 728 Fax Line: +44 (0)1494 723 237 Free phone (UK) 0500 625 525
E-mail: [email protected] Web site: www.hamlet.co.uk
Hamlet Video International USA service center , Tecads Inc, 23 Del Padre St, Foothill Ranch, CA 92610,
U.S.A. Tel: +1 (949) 597 1053, Fax: +1 (949) 597 1094. Toll Free Tel number: (866) 4 HAMLET
E-mail: [email protected] Web site: www.hamlet.us.com
IN CORRESPONDENCE CONCERNING THIS INSTRUMENT
PLEASE QUOTE THE SERIAL NUMBER PRINTED ON THE
LABEL AT THE REAR OF THE UNIT
2
CONTENTS
LIST OF FIGURES ............................................................................................................... 4
GENERAL INFORMATION ............................................................................................... 5
WARRANTY ...................................................................................................................... 5
SAFETY COMPLIANCE.................................................................................................... 6
FRONT PANEL ..................................................................................................................... 7
OVERVIEW........................................................................................................................... 8
OPERATING INSTRUCTIONS.......................................................................................... 9
PATTERNS .......................................................................................................................... 11
TECHNICAL SPECIFICATION....................................................................................... 13
HDTV SERIAL DIGITAL BASICS .................................................................................. 14
BIT SERIAL DIGITAL INTERFACE DEFINED BY SMPTE 292M........................... 15
OUT OF GAMUT ................................................................................................................ 16
HDTV SERIAL DIGITAL BASICS .................................................................................. 17
USEFUL WEBSITES .......................................................................................................... 19
CONTACT DETAILS AND CUSTOMER SUPPORT.................................................... 19
3
LIST OF FIGURES
Fig 1 Front View
Fig 2 HD SDI Basics
.................................
.................................
4
7
14
GENERAL INFORMATION
WARRANTY
This product is manufactured by Hamlet Video International Ltd and is warranted to be free
from defects in components and factory workmanship under normal use and service for a
period of one year from the date of purchase.
FREE EXTENDED WARRANTY
The warranty period can be extended to two years by registering the instrument on the Hamlet
web site
http://www.hamlet.co.uk/serv.html
TERMS AND CONDITIONS
During the warranty period, Hamlet Video International Ltd will undertake to repair or at its
option, replace this product at no charge to its owner when failing to perform as specified,
provided the unit is returned shipping prepaid, to the factory or authorised service facility.
No other warranty is expressed or implied. Warranty shall not be applicable and be void when
this product is subjected to:
1.
Repair work or alteration by persons other than those authorised by Hamlet Video
International Ltd in such a manner as to injure the performance, stability, reliability or
safety of this product.
2.
Misuse, negligence, accident, act of God, war or civil insurrection.
3.
Connection, installation, adjustment or use otherwise than in accordance with the
instructions in this manual.
Hamlet Video International Ltd reserves the right to alter specifications without notice.
This warranty does not affect the statutory rights of the UK customer.
5
GENERAL INFORMATION
SAFETY COMPLIANCE
This product is manufactured and tested to comply with:
BS EN 61010-1 : 1993
Safety requirements for electrical equipment for measurement, control and laboratory use.
EMC COMPLIANCE
We:
HAMLET VIDEO INTERNATIONAL LTD
MAPLE HOUSE
11 CORINIUM BUSINESS CENTRE
RAANS ROAD
AMERSHAM
BUCKS
HP6 6FB
ENGLAND
declare under our sole responsibility that the product
HAMLET PROTEAN
to which this declaration relates is in conformity with the following standards:
EN50081-1
Generic emissions standard for light industrial applications.
EN50082-1
Generic immunity standard for light industrial applications.
following the provisions of EU EMC directives 89/336/EEC and 92/31/EEC.
NOTE. During the EMC certification of this product, shielded cables were used. We
recommend that they be used in operation.
6
FRONT PANEL
7
OVERVIEW
The Hamlet Protean Axiom is a hand held test signal generator designed to output HdTv
serial digital (SMPTE 292) video together with embedded audio.
All signals are digitally derived for accuracy and stability.
SMPTE 274M. Standard Act words P/I Clk rate
1920 x 1080/60/2:1 1920 I 74.25MHz.
1920 x 1080/59.94/2:1 1920 I 74.25MHz/1001
1920 x 1080/50/2:1 1920 I 74.25MHz
1920 x 1080/30/1:1 1920 P 74.25MHz
1920 x 1080/29.97/1:1 1920 P 74.25MHz/1001
1920 x 1080/25/1:1 1920 P 74.25MHz
1920 x 1080/24/1:1 1920 P 74.25MHz
1920 x 1080/23.98/1:1 1920 P 74.25MHz/1001
1920 x 1080/30 (sf) 1920 SegForm 74.25MHz
1920 x 1080/29.97 (sf)1920 SF 74.25MHz/1001
1920 x 1080/25 (sf) 1920 SF 74.25MHz
1920 x 1080/24 (sf) 1920 SF 74.25MHz
1920 x 1080/23.98 (sf)1920 SF 74.25MHz/1001
SMPTE 296M. Standard Act words P/I Clk rate
1280 x 720/60/1:1 1280 P 74.25MHz
1280 x 720/59.94/1:1 1280 P 74.25MHz/1001
An ident word can be cut into the selected pattern, consisting of 16 characters selected by the
front panel buttons.
The video Y and C components can be individually disabled from both outputs and the
embedded audio packets can be disabled from the SDI output.
Embedded tone can be on any of the four groups. It can be on Ch1, Ch2 or both and on Left,
Right or both.
All settings are stored when off. Internal NiMh batteries provide 1Hr of continuous operation.
8
OPERATING INSTRUCTIONS
6V IN SOCKET
Plugging in the power connector disables the batteries allowing external power operation.
CHG-RUN SWITCH
CHG Charges the internal batteries from the external supply. Independent of ON switch.
---- Disconnects the batteries. Use during shipping or prolonged storage.
RUN For battery operation. Power supply connector must be unplugged.
ON
Toggles power on and off. This does not affect the battery charger.
SHIFT
Press this key followed by a blue text key for IDENT, CAPTION, MPEG or
INTERLACE/ 1.001 select.
IDENT
Embedded audio channel can be idented on and off every second by pressing
SHIFT then IDENT. This also recalls the stored 'ident text caption' from memory
and cuts it into the video display. To disable the function press SHIFT the IDENT
again.
AUDIO Left key
Toggles the embedded audio between the following options:
NO AUDIO PACKETS
EMBEDDED SILENCE
CH1 ONLY (L1 & R1)
CH2 ONLY (L2 & R2)
or BOTH CH1 & CH2 on together.
AUDIO Right key
Toggles the embedded audio group number from the following options:
Group1
Group2
Group3
Group4
Y key
Toggles on & off the Y (Luma) component of the serial data stream.
C key
Toggles on & off the Cr & Cb (Chroma) components of the serial data stream.
9
OPERATING INSTRUCTIONS
Standard key
24/48 light on.
25/50 light on
30/60 light on.
720 light on.
24Hz Progressive or 48Hz Interlaced.
25Hz Progressive or 50Hz Interlaced.
30Hz Progressive or 60Hz Interlaced.
60Hz Progressive.
SHIFT - STANDARD
Toggles standard modes between interlaced/segmented format or progressive.
Or, toggles normal or NTSC compatible 1.001.
PATTERN keys
Pressing a pattern key selects that pattern, the OPTION key is for future or
custom patterns, currently set to SMPTE bars.
MPEG key
Press SHIFT then MPEG. A moving horizontal bar is provided to identify frame interpolation
errors in MPEG systems or stuck frames in field stores.
To deselect press SHIFT the MPEG again.
CAPTION key
Up to 64 characters of text can be stored, but only 16 characters can be superimposed on the
selected pattern at one time To enter new characters or edit an existing ident caption press
SHIFT then CAPTION.
The current text caption appears cut into the screen and a cursor appears below the left hand
character.
Select the required letter or number by pressing the appropriate key, 'Cell phone text message
style'
e.g. to select the character 'A' press the 'ABC2' key once.
To select the character 'F' press the 'DEF3' key 3 times.
After each character is selected move the cursor along by pressing Right Cursor Key, (bottom
right). Thus entering or editing a caption can be done by moving the cursor right or left then
changing the character above the cursor with a letter key.
Note that the 'space' character is provided by pressing the 100% key.
When the caption is finished press SHIFT then CAPTION again to store it in memory.
10
PATTERNS
100% BARS
100% full colour bars.
Digital levels are Yblack =64, Ywhite = 940, Cr and Cb are 512 +/- 448 max.
75% BARS
White as 100% bars. Colours reduced to 75% level.
SPLIT
Top half of screen is 100% colour bars, bottom half is full red.
BOWTIE
Y channel is 500KHz. Cr,Cb channels are 502KHz phase adjusted so equal to Y in mid line.
Suitable monitoring equipment, e.g. the Hamlet LCDScope 292WVA, produce (Y-Cr) and
(Y-Cb) displays to accurately check system gains and timings, with the traditional bowtie
displays.
Y Waveform is 438 bits (350mV) p/p centred on 502 bits (350mV).
C Waveform is 448 bits (350mV) p/p centred on 512 bits (350mV).
Timing markers at +/-5nSec and at every 20nSec.
SWEEP
Sweeps from 1MHz to 30MHz over the line period, with markers at 5,10,15,20,25 MHz.
Waveform is 600bits (480mV) p/p centred on 502 bits (350mV).
PLUGE
Grey scale block for colour monitor gain tracking adjustment and grey/superblack stripes for
brightness setting.
Block is 940 bits (700mV), 502 bits (350mV), 239 bits (140mV).
Stripes are at 64 +/- 18bits (+/- 14mV).
MULTI
White bar at 765 bits (560mV) followed by five frequency bursts at 5MHz, 10MHz, 15MHz,
20MHz and 25MHz at 526 bits (370mV) p/p centred on 502 bits (350mV).
PULSE+BR
2T luma pulse at 940 bits (700mV), 10T chroma pulse at 502 bits (350mV), 20 uSec bar at
940 bits (700mV).
11
PATTERNS
MOD STPS
5-step ascending staircase, equal steps of 175 bits (140mV) each.
Added chroma of Cr at 638 bits and Cb at 652 bits.
WHITE
Plain full white screen.
Y waveform 940 bits (700mV), Cr is 512 bits, Cb is 512 bits.
RED
Plain full red screen.
Y waveform is 250 bits (149mV), Cr is 960 bits, Cb is 409 bits.
CONVERGE
Crosshatch pattern for colour monitor convergence adjustment.
DIG CHK
Top half of the screen is the equaliser test and contains several examples of 19 "0"s followed
by 2 "1"s per frame.
Bottom half of the screen is the phase locked loop test and contains several examples of 20
"0"s followed by one "1" per frame.
RAMP
Y waveform is an ascending ramp, running from 64 bits (0mV) to 940 bits (700mV).
Cr and Cb waveforms are ascending ramps, running from 64 (-350mV) to 960 (+350mV)
LIM RAMP
Y waveform is an ascending ramp, running from 1 bit (50 mV below black) to 1022 bits (66
mV above peak white).
OPTION
Future or optional patterns, e.g. SMPTE colour bars.
12
TECHNICAL SPECIFICATION
OUTPUTS
Serial digital
2 x BNC connectors. Output impedance 75 ohms.
SMPTE 292, serial component. 800mV pp
Full 10 bit pattern generation.
Embedded audio tone is a 1KHz asynchronous sine wave
at a level of -18dBFS.
POWER
External
6Vdc +/-0.5V regulated @ 0.9A.
Current draw is 1A if charging as well. 100mA if charging only.
Charging time 16 hours max.
2.1mm power connector, centre negative.
Mains supply adapter 220/110VAC +/-20% 50/60Hz 10VA max.
Internal
600mA hour NiMh batteries with integral charger.
ENVIRONMENT
Indoor use, 5 to 45 deg.C. ambient to 2,000m.
Max humidity 80% to 31 deg.C decreasing to 50% at 40 deg.C.
Overvoltage category 2. Pollution degree 1.
Weight 400g.
13
HDTV SERIAL DIGITAL BASICS
Fig 2
14
HDTV SERIAL DIGITAL BASICS
BIT SERIAL DIGITAL INTERFACE DEFINED BY SMPTE 292M.
HDTV digital component video is produced by applying a 4:2:2 sampling structure to the
analog signal. The luminance component (Y) is sampled at 74.25 MHz, the colour difference
components U & V) are both sampled at 37.125 MHz.
The Y stream is quantised to 10 bits resolution and Timing Reference Signals (TRS) are
added at the beginning and end of the horizontal video blanking period.
The U & V streams are also quantised to 10 bits and then interleaved to give a C stream at
74.25 MHz. TRS are added at the beginning and end of the horizontal video blanking period.
The 74.25MHz Y and C streams are then interleaved to produce a single stream at 148.5MHz.
This data is then scrambled and serialised using a None Return to Zero (NRZ) code to
produce a 1.485 GHz signal.
The TRS at the end of the horizontal blanking period is called Start of Active Video (SAV) it
consists of 4 words:
1) 3FF hex i.e. all '1;s
2) 000 hex i.e. all '0's
3) 000 hex i.e. all '0's
4) XYZ, which determines the type of TRS pulse, consisting of:
Bit 9:
Bit 8:
Bit 7:
Bit 6:
Bit 5:
Bit 4:
Bit 3:
Bit 2:
Bit 1:
Bit 0:
Always '1'
0=frame 1, 1=frame 2
0=normal 1=field blanking
0=SAV 1=EAV
Bits used for Hamming correction.
Bits used for Hamming correction.
Bits used for Hamming correction.
Bits used for Hamming correction.
Always 0
Always 0
The TRS at the beginning of the horizontal blanking period is called End of Active Video
(EAV) it consists of 8 words: The first 4 are the same as for SAV, followed by 2 words
containing the current line number and 2 words containing a Cyclic Redundancy Check
(CRC) for all the preceding words in the line. The period between EAV and SAV is not used
by normal video and may be used for embedded audio or timecode data.
ILLEGAL VALUES
The values 000 and 3FF hex are used solely by TRS pulses (EAV & SAV) they must not
appear anywhere in the active video area.
15
OUT OF GAMUT
Values apart from the illegal values which should not be used.
Luminance is defined as being between peak white, 700mV (3AC hex) and black 0 mV (040
hex) Chroma is defined as being between max positive 350mV (3C0 hex) and max negative 350mV (040 hex). Values above or below these values are termed 'Out of Gamut'.
PARALLEL DIGITAL INTERFACES
Several parallel video Standards can be used with the above serial interface. These are
defined in SMPTE 274M for 1920 x 1080 scanning and SMPTE 296M for 1280 x 720
scanning.
SMPTE 274M
Several sub-standards for this are defined:
1920 x 1080/60/2:1
1920 samples/active line 1080 active line/frame 30PsF segmented format.
74.25 MHz Sample frequency 2200 total samples/line 1125 total lines/frame
1920 x 1080/59.94/2:1
1920 samples/active line 1080 active line/frame 29.97PsF segmented format.
74.176 MHz Sample frequency 2200 total samples/line 1125 total lines/frame
This standard gives an exact frame rate compatibility with NTSC.
1920 x 1080/50/2:1
1920 samples/active line 1080 active line/frame 25PsF segmented format.
74.25 MHz Sample frequency 2640 total samples/line 1125 total lines/frame
1920 x 1080/30/1:1
1920 samples/active line 1080 active line/frame 30 Hz Progressive scan.
74.25 MHz Sample frequency 2200 total samples/line 1125 total lines/frame
1920 x 1080/29.97/1:1
1920 samples/active line 1080 active line/frame 29.97 Hz Progressive scan.
74.176 MHz Sample frequency 2200 total samples/line 1125 total lines/frame
This standard gives an exact frame rate compatibility with NTSC.
1920 x 1080/25/1:1
1920 samples/active line 1080 active line/frame 25 Hz Progressive scan.
74.25 MHz Sample frequency 2640 total samples/line 1125 total lines/frame
1920 x 1080/24/1:1
1920 samples/active line 1080 active line/frame 24 Hz Progressive scan.
74.25 MHz Sample frequency 2750 total samples/line 1125 total lines/frame
1920 x 1080/24sf
1920 samples/active line 1080 active lines/frame 24 Hz segmented frame
74.25 MHz sample frequency 2750 total samples/line 1125 total lines/frame
16
HDTV SERIAL DIGITAL BASICS
1920 x 1080/23.98/1:1
1920 samples/active line 1080 active line/frame 23.98 Hz Progressive scan.
74.176 MHz Sample frequency 2750 total samples/line 1125 total lines/frame
SMPTE 296M
Several substandards for this are defined:
1280 x 720/60/1:1
1280 samples/active line 720 active line/frame 60 Hz Progressive scan.
74.25 MHz Sample frequency 1650 total samples/line 750 total lines/frame
1280 x 720/59.94/1:1
1280 samples/active line 720 active line/frame 59.94 Hz Progressive scan.
74.176 MHz Sample frequency 1650 total samples/line 750 total lines/frame
EMBEDDED AUDIO
The period between EAV and SAV can be used to send embedded digital audio signals. This
is defined in SMPTE 299M. Up to 16 separate audio signals may be sent in a single video
channel. These are organised as four GROUPS of four signals, the four signals are often two
stereo pairs. Typically only one group will be used, giving two stereo pairs of audio. The
audio data is quantised in the sending equipment to 24 bits of resolution, usually at 48 KHz
sample rate in AES/EBU format. The digitised data is arranged in packets which are placed in
the EAV-SAV space.
A packet consists of:
17
HDTV SERIAL DIGITAL BASICS
The Header: (000, 3FF, 3FF)
Data ID: This contains the Audio group number.
Data block number: AES frames have 192 samples of audio data
Data Count: This contains the number of words that follow, always 218 hex
Clock: 2 words containing the number of video clocks that have elapsed between the first
word of EAV and the time the audio sample was made, it is used by the receiving equipment
to reconstruct the audio signal with the correct phase delay.
Audio Sample 1: Consists of four words
Audio Sample 2: Consists of four words
Audio Sample 3: Consists of four words
Audio Sample 4: Consists of four words
Error Correction Codes
Consist of six words used by the receiving equipment to detect or correct errors in the 24
words from the header to the last word of audio sample 4 inclusive.
Check Sum This is the sum of all previous words in the packet except the header words.
Each audio packet contains a sample of all four audio signals
e.g.: Channel 1 left, Channel 1 right, Channel 2 left and Channel 2 right.
Each audio signal requires 3 words to hold all 24 bits, thus each audio packet has 12 words of
audio data.
Typically one or two packets are sent in each EAV-SAV period.
These audio data packets are placed in the Chroma data stream only.
Audio Control Packets.
The audio control packet structure is similar to the audio data packet.
Data in the packet includes the audio sample rate e.g. 48 KHz,
the number of active channels out of the possible 4,
the delay information between Channel 1 audio and Channel 2
and delay information between Channel 3 audio and Channel 4.
Audio control packets are placed in the Luminance Stream, this is sent once per frame in the
second line after the switching point.
As with the video signal words consisting of all '1's or all '0's are not allowed.
18
USEFUL WEBSITES
HAMLET
www.hamlet.co.uk
HAMLET (USA)
www.hamlet.us.com
SMPTE
www.smpte.org
DIN
www.din.de
Society of Motion Picture Television
Engineers
German Standards Institute
EBU
www.ebu.ch
European Broadcasting Union
AES
www.aes.org
Audio Engineering Society
ITU
www.itu.int
International Telecommunication Union
CONTACT DETAILS AND CUSTOMER SUPPORT
For any form of assistance in maintaining your Protean 292AX, please contact:
Hamlet Video International Limited
Maple House 11 Corinium Business Centre Raans Road Amersham Bucks HP6 6FB England
Main Line: +44 (0)1494 729 728
Fax Line: +44 (0)1494 723 237
Free phone (UK) 0500 625 525
E-mail: [email protected] Web site: www.hamlet.co.uk
Hamlet Video International USA service center , Tecads Inc, 23 Del Padre St, Foothill Ranch,
CA 92610, U.S.A.
Tel: +1 (949) 597 1053,
Fax: +1 (949) 597 1094.
Toll Free Tel number: (866) 4 HAMLET
E-mail: [email protected] Web site: www.hamlet.us.com
In correspondence concerning this instrument, please quote the serial number, which you will
find printed on the label at the back of the unit.
19
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