STV5730 ST Microelectronics, STV5730 Datasheet
STV5730
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STV5730 Summary of contents
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... GENERATED SIMULTANEOUSLY THREE WIRE SERIAL INTERFACE FOR MI- CROPROCESSOR CONTROL DESCRIPTION The STV5730 IC is intended to be used in VCR, Satellite receiver and PAY-TV systems for CVBS or R/G/B text/graphics insertion. October 1994 This is advance information on a new product now in development or undergoing evaluation. Details are subject to change without no tice. ...
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... YIN input for minimum cost applications. This is the CVBS input. An external capacitor is needed for clamp operation. The STV5730 extracts the sync from this signal when the C7 control bit is set. it must be tied to an external resistor to control the PLL f0 frequency. it must be tied to the line PLL loop filter. ...
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... CHARACTER SCANNING RAM ROM RAM ADDRESS GENERATOR LUMA & SYNC GENERATION VIDEO BIAS LEVEL DETECTOR GENERATION 13 10 CSN MUTE Parameter Parameter Typ. STV5730 VIDEO 2 7 OUT1 GAIN VIDEO 2 6 OUT2 DISABLE XTAL 8 IN XTAL 9 OUT PAL/NTSC COUT ENCODER & SATURATION ...
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... STV5730 ELECTRICAL CHARACTERISTICS (T Symbol Parameter DV Digital Supply Voltage Digital Supply Current DD AV Analog Supply Voltage DD AI Analog Supply Current DD AV -DV Analog to Digital Supply Voltage Difference Digital Output Voltage High Level ( Digital Output Voltage Low Level ( Digital Input Voltage High Level ...
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... Figure 1 DATA t t DCLH CLD CLK t CLCSL t CSLCLL CSN Parameter CWL CWH CLHCSH t CSWL STV5730 = 5V, unless otherwise specified) Min. Typ. Max. Unit 1.0 3.0 V 1.0 3.0 V 0.95 V 1.1 1.25 1.4 V 1.4 V 1.8 V 250 300 350 mV 100 150 200 mV 360 ...
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... STV5730 TYPICAL PAL/NTSC/SECAM APPLICATION LUMA FILTER (see Note 1) 1 2.2 F CVBS IN 2 (se e note + CSYNC 9 (IN or OUT) XTAL 10 x 4fsc Ext. 4 fsc 11 OSC IN 12 (see Note MICRO Digital Ground Analog Ground Notes : 1. Optional filter. For low cost applications, short circuit. ...
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... FUNCTIONAL DESCRIPTION The STV5730 operates in ”mixed mode” or ”full page mode” Mixed mode : the device is line locked to the incoming CVBS signal. The text is superimposed over the CVBS input either in B&W or translucent. It may also be superimposed in color by using the R/G/B outputs. - Full page mode : the device generates a colored PAL or NTSC CVBS output and simultaneous R/G/B outputs.Both ” ...
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... STV5730 1.3 - Row Attributes There are 11 row attributes, numbered from 0 to 10. They may be written one by one or sequentially. The row attribute format is as follows : 11 8 HPOS OFFSET VPOS OFFSET : the MSB is the sign bit (0 : positive negative). If the offset is positive (from 0 to +17), then the corresponding number of lines are added on top of the row (i.e. it moves downwards) ...
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... external input composite sync is taken from the CSYNC pin the sync is extracted by the STV5730.The currently active sync is output on the CSYNC pin the standard is NTSC, 60Hz the standard is PAL or SECAM with 50Hz character color encoding is disabled ...
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... The STV5730 is down loaded by the microprocessor through a three wire serial interface : DATA, CLK, CSN. The CLK and CSN signals are internally ORed in order to validate the transfer when the STV5730 is chip selected only (i.e. CSN = 0). The CSN rising edge validates the internal data transfer. ...
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... STRU[7: row attribute or a register address. The BUF field must be set to 0000 and the DEPL field is incremented after each data access. STV5730 0 DATA 0 CONTROL 0 CONTROL ...
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... CVBS signal. The sync is either extracted 12/19 ..................... 14 for CONTROL register, 15 for POSITION register, 16 for MODE register by the STV5730 (if C7 control bit is set) or provided by the application in a composite form on the CSYNC pin (if C7 control bit is cleared). The STV5730 separates the vertical sync from the com- posite synchronism. ...
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... The signal that is delivered to the MUTE output pin is synchronized on the vertical sync if M11 is cleared forced low if the M2 mode bit is low. This signal may be monitored by the microproces- sor to switch the STV5730 from mixed mode to full page mode and vice versa (using the C0 control bit THE LUMA GENERATION ...
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... The information is delivered by the MUTE pin. This information can be used by the microcontroller to force the STV5730 into the mixed mode (set C0 low) when the input signal becomes good enough. In the video full page mode, it can be usefull to set the M11 (mode register) bit high, so that the mute signal is not synchronized on the vertical sync, thus accelerating the VIDEO IN presence detection ...
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... BORDER BACKGROUND off LEBLACK LEBLACK LESCREEN video LESCREEN CHARACTER CHARACTER CHARACTER BORDER BORDER BACKGROUND off LEBLACK + LESCREEN + CSCREEN CBORD LEBLACK + LESCREEN + CBACKG CBORD LESCREEN + CSCREEN LESCREEN + CBACKG STV5730 PAGE BACKGROUND video video video PAGE BACKGROUND LESCREEN + CSCREEN LESCREEN + CSCREEN 15/19 ...
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... CSCREEN is defined by the color register. CBACKG and CBORD are identical to CCHAR and thus are character attributes recommended to use CO output signal in this case. A R/G/B external switch must be controlled by the STV5730 FB output to perform the character insertion. C0 may be used as an additional character intensity signal. ...
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... STV5730 07H 0FH 17H 1FH 27H 2FH 37H 3FH 17/19 ...
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... STV5730 Figure 6 (continued 48H 49H 4AH 50H 51H 52H 58H 59H 5AH 60H 61H 62H 68H 69H 6AH 70H 71H 72H 7AH 18/19 43H 4BH 4CH 4DH 4EH 53H 54H 55H 56H 5BH 5CH ...
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... Max. Min. 2.65 0.3 0.004 0.49 0.014 0.32 0.009 0 (typ.) 18.1 0.697 10.65 0.394 1.27 16.51 7.6 0.291 1.27 0.016 o 8 (max system, is granted provided that the system conforms to C Standard Specifications as defined by Philips. STV5730 c1 E Inches Typ. Max. 0.104 0.012 0.019 0.013 0.020 0.713 0.419 0.050 0.65 0.299 0.050 19/19 ...