SDA5648 Siemens, SDA5648 Datasheet
SDA5648
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SDA5648 Summary of contents
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Decoder for Program Delivery Control and Video Program System PDC / VPS Decoder Features Single-chip receiver for PDC data, broadcast either – in Broadcast Data Service Packet (BDSP) 8/30/2 according to CCIR teletext system B, or – in dedicated line ...
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Pin Configuration (top view) Operating mode (PDC/VPS) is selected by a control register which can be written to via the I interface. Semiconductor Group P-DIP-14-3 P-DSO-20-1 22 SDA 5648 SDA 5648X 2 C-Bus ...
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Pin Definitions and Functions Pin No. Pin No. Symbol P-DIP-14-3 P-DSO-20 N. SCL 3 5 SDA 4 6 CS0 5 7 VCS 8 N. DAVN 7 10 EHB 8 ...
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Block Diagram Semiconductor Group 24 SDA 5648 SDA 5648X ...
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Circuit Description Referring to the functional block diagram of the PDC / VPS decoder, the composite video signal with negative going sync pulses is coupled to the pin CVBS through a capacitor which is used for clamping the bottom of ...
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I C-Bus General Information The I 2 C-Bus interface implemented on the PDC decoder is a slave transmitter/receiver, i.e., both reading from and writing to the PDC / VPS decoder is possible. The clock line SCL is controlled only ...
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Control Register Bit Number 7 T4 Default: All bits are set power-up. Bit 0: Determines, which kind of data is accessed via the I 0 BDSP 8/ 30/ 2 data accessible Bit 1: Determines the operating mode. ...
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Data Transfer (Read Mode) Step1 : To start a data transfer the master generates a Start Condition on the bus by pulling the SDA line low while the SCL line is held high. The byte address counter in the decoder ...
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Order of Data Output on the I 2 C-Bus I Byte 1 bit Byte 2 bit Byte 3 bit ...
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Order of Data Output on the I (cont’d) 2 C-Bus I Format 1 Byte 5 bit 7 byte Byte 6 bit 7 byte Byte ...
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Description of DAVN and EHB Outputs DAVN (Data Valid active low) EHB (First Field active high) Signal Output DAVN H/L-transition (set low) L/H-transition (set high) always set high EHB L/H-transition H/L-transition In test mode (i. high), both DAVN ...
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Electrical Characteristics Absolute Maximum Ratings Parameter Ambient temperature Storage temperature Total power dissipation Power dissipation per output Input voltage Supply voltage Thermal resistance Operating Range Supply voltage Supply current Ambient temperature range Characteristics T = ...
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Characteristics (cont’ Parameter Input Signals CVBS (pos. Video, neg. Sync) Video input signal level Synchron signal amplitude Data amplitude Coupling capacitor H-input current L-input current Source impedance Leakage resistance at coupling capacitor Output Signals DAVN, ...
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I 2 C-Bus Timing Parameter Clock frequency Inactive time prior to new transmission start-up Hold time during start condition Low-period of clock High-period of clock Set-up time for data Rise time for SDA and SCL signal Fall time for SDA ...
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PDC/VPS-Receiver Application Circuit Semiconductor Group 35 SDA 5648 SDA 5648X ...
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C-Bus Signals During Write Operations I Semiconductor Group 36 SDA 5648 SDA 5648X ...
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C-Bus Signals During Read Operations I Semiconductor Group 37 SDA 5648 SDA 5648X ...
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Semiconductor Group 38 SDA 5648 SDA 5648X ...
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Position of Teletext and VPS Data Lines within the Vertical Blanking Interval (shown for first field) Definition of Voltage Levels for VPS Data Line Semiconductor Group 39 SDA 5648 SDA 5648X ...
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BDSP 8/30 Format 1 Bit Allocation Byte No. Bit No Weight 2 – – MJD Digit 16 Weight MJD Digit Weight MJD Digit 0 Weight ...
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Structure of the Teletext Data Packet 8/30 Format 2 Semiconductor Group 41 SDA 5648 SDA 5648X ...
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BDSP 8/30 Format 2 Bit Allocation The four message bits of byte 13 are used as follows: byte 13 bit 0 – LCI b ) label channel identifier 1 1 – LCI – LUF label update ...
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Data Format of the Program Delivery Data in the Dedicated TV Line ....... ....... ...... ...... Not relevant to PDC ...... Reserved for enhancement of VPS ...... ...... Not relevant to PDC Semiconductor Group 43 SDA 5648 SDA 5648X ...