AT76C651 ATMEL Corporation, AT76C651 Datasheet

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AT76C651

Manufacturer Part Number
AT76C651
Description
AT76C651 Evaluation Kit - User Manual
Manufacturer
ATMEL Corporation
Datasheet

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AT76C651 Evaluation Kit
USER MANUAL

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AT76C651 Summary of contents

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... AT76C651 Evaluation Kit USER MANUAL ...

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...

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... External Access ........................................................................................2-2 2.4.1 Power Supply .....................................................................................2-2 2.4.2 RF Input..............................................................................................2-2 2.4.3 PC Control Data .................................................................................2-2 2.4.4 MPEG2 Data Output...........................................................................2-3 2.4.5 Timing Waveforms..............................................................................2-5 2.5 Test ...........................................................................................................2-5 2.6 Board Configuration ..................................................................................2-7 2 2.6.1 AT76C651 I C Address Configuration................................................2-7 2.6.2 PLL Control Bits Configuration ...........................................................2-7 Section 3 Software Installation ............................................................................. 3-1 3.1 Main Window ............................................................................................3-2 3.2 Configuration Menu...................................................................................3-3 3.3 Parameters Menu .....................................................................................3-4 3.3.1 General Configuration Window...........................................................3-5 3.3.2 Output Mode Configuration Window...................................................3-6 3.3.3 AGC1 Control Window .......................................................................3-8 3 ...

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Table of Contents ii 3.3.5 Carrier Recovery Configuration Window ..........................................3-10 3.3.6 AGC2 Configuration Window............................................................3-10 3.3.7 Equalizer Window.............................................................................3-11 3.3.8 Forward Error Correction Window ....................................................3-12 3.3.9 PID Filtering Window ........................................................................3-13 3.4 View Menu ..............................................................................................3-13 Section 4 Appendix - Glossary and Schematics................................................... 4-1 ...

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... DVB/DAVIC QAM Demodulator and to give an example of its implementation. The prin- cipal application is the digital demodulation of QAM signals used for digital TV over cable networks. The AT76C651 device can also be used in a number of other applica- tions, e.g. MMDS, radio transmission, satellite transmission. This manual is structured as follows: 1 ...

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... AT76C651 Evaluation Kit User Manual Introduction 1-2 ...

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... The analog signal goes through a SAW filter to attenuate adjacent channels. A fixed-gain amplifier is used to compensate the SAW filter attenuation. The analog signal is sent to the AT76C651 device via an external 10-bit analog-to-digital converter to be processed (see AT76C651 datasheet, Literature Number 1293). At the output, the digital MPEG2 frame and synchronization signals are available. ...

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... AT76C651 +3.3V External ADC (if used) LEDs Op Amplifier (if used) IF Amplifier Tuner Varicap (very sensitive) Tuner Type DAT7021 (European Version) (US Version) 75 ± 5 unbalanced 55.25 MHz to 801.25 MHz 6 MHz Type F (3/8 UNEF 2A) -63 dBm to -37 dBm 44 MHz supply on board (+5.50V max) AT76C651 Evaluation Kit User Manual DAT7025 ...

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... High-Level Output Voltage: 4.00V min (6 mA load), 5.00V Max Setting Up the EBC651 Evaluation Board Description Bit 0 for AT76C651 PLL Control Bit 1 for AT76C651 PLL Control Hardware Reset 2 ( data from AT76C651 ( data from PC to AT76C651 2 ( clock from PC to AT76C651 2-3 ...

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... GND 16 GND 17 GND 18 GND 19 GND 20 GND 21 GND 22 GND 23 GND 24 GND 25 GND Description Corrected Byte Indicator Valid MPEG2-TS Frame Start of MPEG2-TS Frame Byte Clock - MPEG2-TS Byte Output Enable LSB DATAOUT: MPEG2-TS Parallel Byte MSB RS Packet Not Corrected AT76C651 Evaluation Kit User Manual ...

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... TP7 6 D6 MPEG2 DATA DATAOUT: MPEG2-TS Parallel Byte LSB Setting Up the EBC651 Evaluation Board 2 C Bus Data Line SDA between Tuner and 2 C Bus Clock SCL from AT76C651 to Tuner 2 C Bus (bi-directional Bus Level 3.3V 3.3V 3.3V 3.3V 5.0V 5.0V 5.0V 5.0V 3.3V 3.3V 3.3V 3.3V 2-5 ...

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... I C DATA from PC to AT76C651 CLOCK from PC to AT76C651 GND Test Pins Bit 0 for AT76C651 PLL Control (inverted) Bit 1 for AT76C651 PLL Control (inverted) Hardware Reset (inverted - active high ) Origin From AD9051BRS Device (if used) From AT76C651 Device From AT76C651 Device ...

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... Selection of bit 0 for 0 AT76C651 PLL control (B) PLLCTRL Selection of bit 1 for 1 AT76C651 PLL control (B) PLLCTRL Selection of bit 2 for 2 AT76C651 PLL control (B) Note Connect By default on the board AT76C651 address = 0001101 bin Tuner address = 11000010 bin ref xtal 2 where: ...

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... Setting Up the EBC651 Evaluation Board 2-8 AT76C651 Evaluation Kit User Manual ...

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... AT76C651 Evaluation Kit User Manual The AT76C651 Evaluation Kit software is provided for performance evaluation of the AT76C651 circuit. The software simplifies the configuration and transmission monitoring. By default, the software is configured to be used with this evaluation board in DVB mode, however it is possible to configure some parameters to effect specific test and measurement operations ...

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... XXX Lock: A point appears when signal is activated I/Q Inverted: Indicates whether or not I and Q channels are inverted GENERAL CONFIGURATION indicates configuration of main registers: Modulation Type Symbol Rate DDS Downconverting Frequency Coherent Modulation (Visible only if QPSK modulation is selected) TUNER - RF indicates tuner data registers RF Frequency (Input) AT76C651 Evaluation Kit User Manual ...

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... Menu AT76C651 Evaluation Kit User Manual Tuner switch activation (On/Off) SETAUTOCFG enables automatic configuration (see AT76C651 Datasheet, Lit. No. 1293). RESTART performs a Software Reset to initialize device datapath (the configuration registers are not modified). Figure 3-2. Configuration Menu This menu allows standard operations on files: Creates a new configuration and executes a hardware reset ...

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... Software Installation 3.3 Parameters Menu 3-4 The Parameters Menu opens a series of windows for configuring the AT76C651. Figure 3-3. Parameters Menu AT76C651 Evaluation Kit User Manual ...

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... General Configuration Window AT76C651 Evaluation Kit User Manual Figure 3-4. General Configuration Window Note: If one of the General Registers (except Tuner Configuration) has been modified, a SetAutoCfg must be carried out so that other registers are reconfigured coher- ently. Some registers may then be modified to match specific needs. A software restart in the Main Window is recommended after a configuration change ...

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... European version (DAT7021): 55.25 MHz Note generally recommended to switch off the tuner I frequency is configured in order to reduce the phase noise introduced by the tuner (see AT76C651 datasheet, Literature Number 1293). BOARD PARAMETERS Indicate parameter values configured on the board: Quartz or XO frequency: Enter the value of the component (F ...

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... Unlock 2: IRQ activated when LOCK 2 signal goes low Lock 2: IRQ activated when LOCK 2 signal goes high Signal Input Loss: IRQ activated when there is no input signal to AT76C651 Frame Lost: IRQ activated when a frame is uncorrected by the RS Decoder Periodic Interruptions: Generate a periodic interruption with the selected period. ...

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... Amplifier with negative slope: Change sign of slope for AGC Output (positive for this TUNER) Slope negative: Activated when the control voltage increases and the amplifier gain decreases. Constant PWM Output Define CSTPWM Level Output if used (optional). AT76C651 Evaluation Kit User Manual ...

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... Timing Recovery Configuration Window AT76C651 Evaluation Kit User Manual Figure 3-7. Timing Recovery Configuration Window This window allows the configuration of Timing Recovery Parameters. These parameters are automatically configured by the SetAutoCfg button in the Main Window. Software Installation 3-9 ...

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... This window allows the configuration of Carrier Recovery Parameters. These parameters are automatically configured by the SetAutoCfg button in the Main Window. Figure 3-9. AGC2 Configuration Window This window allows the configuration of AGC2 parameters. These parameters are automatically configured by the SetAutoCfg button in the Main Window. AT76C651 Evaluation Kit User Manual ...

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... Equalizer Window AT76C651 Evaluation Kit User Manual Figure 3-10. Equalizer Window Equalizer Inhibition Make the Equalizer transparent. Freeze Equalizer Freeze the coefficients in the Equalizer Filter. Equalizer 16-taps only Select 16-taps equalizer (enable Symbol Rate < F taps. Equalizer Structure LE: Linear Equalizer (mandatory if 16-taps equalizer is chosen) DFE: Decision Feedback Equalizer with central tap between 0 ...

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... Select manual inversion, otherwise the setting is automatic. Frame Length Length of frame ( Deinterleaver). Frame Synchronization Word First byte of MPEG2 Frame. Deinterleaver Branch Number (I) Deinterleaver configuration. Deinterleaver Memory Step (M) Deinterleaver configuration. FEC Inhibitions Disable the specified functions. AT76C651 Evaluation Kit User Manual ...

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... PID Filtering Window 3.4 View Menu AT76C651 Evaluation Kit User Manual Figure 3-12. PID Filtering Window This menu specifies the PID of MPEG frames which must be flagged by FLAGPID0 & FLAGPIDG1 pin output. PID values can be configured only if the filter is on (PID1/PID2) and the mask is not null (PID3) ...

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... Opens a window displaying the QAM constellation Note: As data are collected by a slow I Demo Mode, all points are random data. The cursor allows the user to choose the zoom level (no effect on the device interface, all points cannot be displayed. In AT76C651 Evaluation Kit User Manual ...

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... AT76C651 Evaluation Kit User Manual EQUALIZER DISPLAY Opens a window monitoring the equalizer, coefficients and the spectrum compensation. Software Installation 3-15 ...

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... Software Installation 3-16 AT76C651 Evaluation Kit User Manual ...

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... Abbreviations AT76C651 Evaluation Kit User Manual Appendix - Glossary and Schematics The following abbreviations are used in this document: ADC Analog to Digital Converter AGC Automatic Gain Control CATV Cable Television DVB Digital Video Broadcasting EMC Electromagnetic Compatibility ESD Electromagnetic Discharge ETS European Telecommunication Standards ...

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... AT76C651 POWER CONNECTIONS PLLCTRL0 VDD VDD3 = +3.3V PLLCTRL1 R38 I2CVDD VDD5 = +5.0V R6 GND GND = Ground Power PLLCTRL2 R27 R50 I2CADDR0 R48 R49 I2CADDR1 R34 R33 TEST MODE R51 R28 VDD VDD XTAL R9 AT76C651 Evaluation Kit User Manual 1 1 10k R10 1 R11 1 PC reset ...

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... Appendix - Glossary and Schematics 4-3 Figure 4-2. EBC651 Evaluation Board Top View Note: This drawing is not to scale. AT76C651 Evaluation Kit User Manual ...

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... Appendix - Glossary and Schematics 4-4 Figure 4-3. EBC651 Evaluation Board Bottom View Note: This drawing is not to scale. AT76C651 Evaluation Kit User Manual ...

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... Figure 4-14. EBC651 Evaluation Board Connection QAM MODULATOR or CATV NETWORK OUTPUT AT76C651 Evaluation Kit User Manual CATV NETWORK TUNER EBC651AA01 Appendix - Glossary and Schematics POWER SUPPLY PC CONTROL DVB/DAVIC QAM DEMODULATOR 4-5 ...

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... For all questions regarding the information in this document, please contact: Atmel Corporation Digital TV Development Center Orlytech Bat. 526 2 allée Maryse Bastié 91781 Wissous Cedex France Tel.: (+33) (0 Fax (+33) (0 e-mail address: ylevy@es2.fr AT76C651 Evaluation Kit User Manual ...

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... Atmel Corporation 1999. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard war- ranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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