Philips CU1216 Series - Figure 1.2 TU1216 General Block Diagram

BU RF Solutions
- 5 -
Figure 1.2 : TU1216 general block diagram
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The module consists of the following key features :
1. Loopthrough / RF Modulator input function –Active loopthrough/RF Mod input (LM)
2. Tuner – high performance single conversion tuner that covers a frequency range from 51Mhz to 858Mhz.
33V tuning supply is derived from the single 5V supply by means of a DC/DC converter.
3. IF – Provides wideband IF output 36.15Mhz for analog reception. The narrowband IF output after SAW
filtering is being amplified further by a variable IF amplifier. This is controlled by the digital demodulator in
order to maintain a 2Vp-p differential amplified IF output to the DVB-T Receiver.
4. Digital Demodulator -- TDA10046 is used which can support up to 2K and 8K COFDM Modes. The
output can be either a parallel or a serial MPEG-2 transport stream.
R
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i npu
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(b
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+
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8
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suppl
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MPEG
_
TS
(D 0...D7
/
se
r
ial)
MPEG
_
TS
_
CL
K
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e
s
e
t
MPEG
_
P
K
T
_
S
Y
N
MPEG
_
D
A
T
A
_
V
A
L
(5) (
6
)
(24
/
25) ( 28)(27)
(13)(11) (12)
(15... 22)
(23)
(26)
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2
2
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