Transcript Is coax dead? 4K Single link

Hollywood Post Alliance Technology Retreat 2014
Steve Lampen
Multimedia Technology Manager
Product Line Manager – Entertainment
Belden
•
No standards for 4K single link.
•
•
Everything here is “theoretical”.
•
•
We’re close….
Could we make some?
•
•
Standard product, in stock.
There is NO single link 12 GHz.
•
•
A changes B changed C….
LOTS of dual link/quad link.
•
•
“What if we did this?”
Everything is interrelated.
•
•
Lots of talk, nothing signed
We think we could.
Would you use any?
•
It’s a very new world
SIGNAL
SD-SDI
CLOCK
NYQUIST
LIMIT
3x
NYQUIST
270 MHz 135 MHz 405 MHz
HD-SDI 1.5 GHz 750 MHz 2.25 GHz
3G-SDI
3 GHz
1.5 GHz 4.5 GHz
4K
12 GHz
6 GHz
18 GHz
SIGNAL
SD-SDI
CLOCK
NYQUIST
LIMIT
3x
NYQUIST
270 MHz 135 MHz 405 MHz
HD-SDI 1.5 GHz 750 MHz 2.25 GHz
3G-SDI
3 GHz
1.5 GHz 4.5 GHz
4K
12 GHz
6 GHz
18 GHz
“Safe distance” formula
• -20 dB at ½ clock (Nyquist)
• Things have improved since 1990…
• -40 dB at ½ clock
• Cable still better than this.
•
•
•
Our existing cable works to 6 GHz
Our existing connectors, too.
•
•
12 GHz requires new designs
Add 20 years of improvements
CABLE
-20 dB @
½ clock
-20 dB @
½ clock
-20 dB @
½ clock
-40 dB @
½ clock
-40 dB @
½ clock
-40 dB @
½ clock
-40 dB @
½ clock
SINGLE
LINK
DUAL
LINK HD
SINGLE
LINK
DUAL LINK
3GX2=6 GHz
SINGLE LINK
6 GHz
QUAD LINK
3Gx4=12GHz
DUAL LINK
6Gx2=12GHz
HD-SDI
3G-SDI
3G-SDI
PROPOSED
PROPOSED
PROPOSED
PROPOSED
SMPTE
292M
SMPTE
424M
SMPTE
424M
PROPOSED
PROPOSED
PROPOSED
PROPOSED
Ft.
179DT
m
115 35
Ft.
m
Ft.
m
Ft.
m
Ft.
m
Ft.
m
Ft.
m
115
35
81
25
162
49
111
34
162
49
111
34
4179
1855A
4855
215 68
1505A
4505
304 93
1694A
4694
371 113
1794A
4794
469 143
7731A
4731
580 177
215
304
371
469
580
68
93
113
143
177
149
210
256
320
393
45
64
78
98
120
299
420
512
641
785
91
128
156
195
239
204
286
347
433
524
62
87
106
132
160
299
420
512
641
785
91
128
156
195
239
204
286
347
433
524
-40 dB @
½ clock
SINGLE LINK
12 GHz
PROPOSED
PROPOSED
Ft.
m
73
22
110
34
192
59
227
69
286
87
347
106
62
87
106
132
160
CABLE
FIRE
RATING
VELOCITY OF
PROPAGATION
PERCENTAGE OF
NITROGEN GAS
1855A
1855P
1505A
1506A
1694A
1695A
7731A
7732A
CMR
CMP
CMR
CMP
CMR
CMP
CMR
CMP
82%
80%
83%
84%
82%
82%
85%
83%
55.8%
49.8%
58.9%
61.5%
55.8%
55.8%
64%
58.9%