OTA Hybrid DVBT

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OTA Hybrid DVB-T Analogue Tuner April
2005Hong Kong China
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Introductions

• Smallest tuner for mobile device in the world
• Support both Analog and Digital TV (DVB-T)
• 4 flexible models for any kind of designs
• Basic tuner with internal crystal
• Basic tuner without internal crystal
• Half NIM tuner with internal crystal
• Half NIM tuner without internal crystal

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Performance

• With perfect demodulator, we can pass following
  European Standard
• Nordig Unified
• DTG (D-Book)
• EICTA (E-Book)
• We did the test based on Micronas DRX3975D

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Applications

• In-Car Entertainment
• STB (Set Top Box)
• iDTV
• PVR
• DVD-R/W
• PC-TV card
• Notebook DVB-T card

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Basic Application Diagram
Sense-input to achieve optimal control of Tuner
RF-AGC
8 MHz SAW excellent performance, for both 7 and
8 MHz channels
8 MHz SAW
IF signal
MPEG-2 TS
DRX 3975D
Serial Control
Serial Control
16 MHz crystal
Re-use of 16 MHz clock saves need for 2nd
reference X-tal
RF-AGC to control the tuner LNA
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Basic Block Diagram
SAW filter VGA are optional
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Basic STB solution
Video Out
CVBS, RGB, Y/C
SCART
Audio L/R
Audio L/R
Line Out
SPDIF
SPDIF
DVB MPEG-2 decoder, CPU, graphic, audio DAC
COFDM Demodulator
MPEG-2 TS
TS
IF
SAW
UART
Tuner
SDRAM
Flash
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Basic STB with Half NIM tuner
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Hybrid DVB-T Front End

• Use only one tuner to receive both
• analog TV or DVB-T

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Standard iDTV block diagram
S/PDIF
Dolby Dig. or PCM
Center
Dolby Processor
Surround
Line In
Multi Sound Processor
Audio
Main
SIF
Subwoofer
I2S
RF-AGC
Analogue Demodulator
Head Phone
Ext.Flash
Ext.SDRAM
Tuner
MPEG Decoder
Line Out
IF-AGC
global SAW
COFDM Demodulator
RS232
TS
iDTV module
EJTAG
CVBS Y/C
Y/ C
CVBS
RGBa/100i
43 / 169
RGB SVM H, V, E/W
SCART
CVBS
Video Encoder
Video Decoder
RGB, FB
DVD / STB
analog YCrCb
RS232 Connection Host / Slave
VGA / SVGA / 480p / 1080i
Teletext (analog)
Teletext Processor
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iDTV Module block diagram
12V18V
I2S
L,R
Power supply
SMPS
3.3V
2.5V
5.0V
SMPS
Audio Pre-Amp
1.8V
SPDIF
RF-AGC
Tuner
Ext.Flash
MPEG Decoder
IF-AGC
Ext.SDRAM
COFDM Demodulator
global SAW
RS232
TS
EJTAG
CVBS
SIF
Terrestrial TV Signal output Optional for cost
savings In the host system
CVBS RGBFBL Y/C ITU656
IR,HS,VS,SDA,SCL, RS232 via Smart Card I/O
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Simple DVB-T Tuner
DVB-T Demodulator
I2C
IF AGC
global SAW
LVDS
IF
IF
I2C
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Half NIM Tuner
DVB-T Demodulator
I2C
IF AGC
global SAW
LVDS
IF
IF
I2C
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Dimension
26.924mm x 27.305mm h lt 5mm