 The Expanding Area of DVB-T2 Use |
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Since the first "DVB-T2" standard terrestrial
broadcasts commenced in the UK in 2009,
the standard has been adopted in Finland,
Sweden and Italy. Germany, Austria and
other EU countries, eastern Europe, Africa,
South-East Asia, South Asia, Central
America and other countries around the
world are considering adoption of DVB-T2.
(See figure 1.) |
| Meets All Major Receiver Specifications |
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The CXD2834ER and the CXD2834R comply
with the NorDig standard, which is used as
reference by many receiver specifications
and obtained certification. Both ICs will
also easily comply with the more stringent
specifications in the NorDig standard that will
be introduced from 2012.
They also comply with the DTG 7.0 in
the UK and the specifications of most
European e-Books. The current product, the
CXD2820R is the de facto standard of DVB-T2 demodulator ICs and has been certified by
most receiver specifications. Sony is now using
its experiences to help customers that use our
ICs to obtain certification for their products.
(See figure 2.) |
Major Improvement in Performance
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The CXD2834ER and the CXD2834R come
with much improved multipath performance
caused by reflected wave. (See figure 4.)
They also have reduced acquisition time and
provide quick switching between channels.
(See table 1.) |
Reduced Printed Circuit Board and
BOM Costs
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The CXD2834ER is provided in a compact
package (48-pin VQFN, 7 mm × 7 mm)
that will reduce the mounting area. The
CXD2834R is provided in a 10 mm × 10 mm
64-pin LQFP package. When combined with
a Sony silicon tuner IC (CXD2831WR), the
area occupied by the tuner on the board can
be minimized. Both ICs can run on 3.3 V and
1.2 V power supplies and select either 20.5
MHz or 41 MHz X'tal with a tolerance of up
to ±100 ppm. |
Compatibility with CXD2820R
|
|
The CXD2834R shares the same printed
circuit board and pin assignment as the
CXD2820R.
The 2.5-V power supply pin on the CXD2820R
has been replaced with an unused
pin (NC pin) that is not electrically connected
to simplify replacement.
This further facilitates migration from the
CXD2820R. |
Tuner IC Chipset that Supports All the
World's Broadcasting Standards
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|
Sony is the only manufacturer to develop
IC chipsets that support all the world's
broadcasting systems.
Since the CXD2834ER shares the package
and pin assignment with demodulator ICs for
other markets (CXD2840ER, CXD2836ER,
CXD2835ER, CXD2828ER and CXD2817ER)
that were developed during the same time
period, they are mutually replaceable. (See
figures 3 and 5.) Also, a shared software
interface will minimize man-hours spent on
examination and development. |
Second Generation DVB-T2/T/C Demodulator IC with
Substantially Improved Functionality and Performance
and Designed for Ease of Use
Vol.66