saa5290 NXP Semiconductors, saa5290 Datasheet
saa5290
Available stocks
Related parts for saa5290
saa5290 Summary of contents
Page 1
... DATA SHEET SAA5290 One page Economy Teletext/TV microcontroller Preliminary specification File under Integrated Circuits, IC02 Philips Semiconductors INTEGRATED CIRCUITS February 1995 ...
Page 2
... SAA5290ZP/NVI EEPROM Notes 1. nnn is a three-digit number referencing the microcontroller program ROM mask digit number referring to the language variant of the SAA5290ZP/NV. February 1995 DESCRIPTION The SAA5290 is a single-chip one page teletext decoder and television control microcontroller. The device will ...
Page 3
... V DDT V DDM 39 44 DISPLAY TIMING DISPLAY TEXT RAM INTERFACE PULSE TIMER/ WIDTH 2 CTRS PORT 1 PORT P1.0 to P1.7 / INT0, P0.0 to P0.7 INT1, T0, T1, SDA, SCL SAA5290 MAX. UNIT MHz C 37 VSYNC 36 HSYNC 27 FRAME 3 34, 33 VDS 29 COR 31 ...
Page 4
... Video/data switch push-pull output for dot rate fast blanking. HSYNC 36 Horizontal sync dedicated input for a TTL-level version of the horizontal sync pulse. The polarity of this pulse is programmable by register bit TXT1.H POLARITY. February 1995 DESCRIPTION SSA 4 Preliminary specification SAA5290 via a 100 nF SSA via resistor. ...
Page 5
... MHz crystal oscillator input. OSCOUT 42 12 MHz crystal oscillator output. RESET 43 If the reset input is HIGH for 2 machine cycles (24 oscillator periods) while the oscillator is running, the SAA5290 is reset. This pin should be connected to V capacitor microcontroller power supply. DDM P1.0/INT1 45 PORT 1: 8-bit open-drain bidirectional port with alternative functions ...
Page 6
... CVBS0 23 CVBS1 24 BLACK 25 IREF 26 MLC103 Fig.2 Pin configuration. 6 Preliminary specification 52 P1.5 51 P1.4 50 P1.7/SDA 49 P1.6/SCL 48 P1.3/T1 47 P1.2/INT0 46 P1.1/T0 45 P1.0/INT1 V 44 DDM 43 RESET 42 OSCOUT 41 OSCIN 40 OSCGND V 39 DDT V 38 DDA 37 VSYNC 36 HSYNC 35 VDS RGBREF 30 P3.4 29 COR V 28 SSD2 27 FRAME SAA5290 ...
Page 7
... T stg(min) stg(max) CONDITIONS ESD Human body model 2000 V, 100 pF, 1.5 k ESD Machine model 200 V, 200 pF, 0 latch-up 100 mA, 1 (absolute maximum) 7 Preliminary specification SAA5290 (1) (1) (1) REQUIREMENTS 1500 FPM; equivalent to 100 FITS 2000 FPM 2000 FPM (1) REQUIREMENTS 15% LTPD ...
Page 8
... Preliminary specification CONDITIONS MIN. 0.3 +6.5 0 0.1 0.1 20 +70 55 +125 . DD MIN. TYP. 4.5 5.0 5 0.3 0.2V 0. +10 4 0.2V DD 0.8V 0.33V DD 4 SAA5290 MAX. UNIT MAX. UNIT 0 0 ...
Page 9
... 1 1 between 10% and 90 between 90% and 10 Preliminary specification SAA5290 TYP. MAX. 0 RGBREF RGBREF + 0.4 150 0 0 0.5 0 100 ...
Page 10
... RGBREF (note 1) V input voltage input current I February 1995 CONDITIONS P2.7 P3.0 P3.5 TO AND TO 0 0.3 0. 0.3 3 between 3 and 1 V 0.1 0.7 3.0 2.5 0.3 10 Preliminary specification SAA5290 MIN. TYP. MAX 0. 0. 0.5 400 200 0.3 0.6 1.0 1.4 250 V + 0.3 DD 5.0 10 ...
Page 11
... R, G and B pins is 150 . 2. Crystal order number 4322 143 05561. February 1995 CONDITIONS MIN. 0.3 1.8 10 0.3 0. amb amb amb amb 11 Preliminary specification SAA5290 TYP. MAX. UNIT 100 nF 2.15 2.5 V +10 A 0. MHz 10 ...
Page 12
... C-bus specification. 2 C-bus specification for the special crystal frequency. repeated START condition t SU;STA STOP condition t SU;STO 0. SU;DAT2 SAA5290 4.0 s 4.7 s 4.0 s 1.0 s 0.3 s 250 4.7 s 4.0 s 4.7 s 1.0 s 0.3 s START condition 0. BUF t SU;DAT3 MLC104 ...
Page 13
... CHIP MEMORY The SAA5290 does not support the use of off-chip program memory or off-chip data memory. This means that the SAA5290 does not have any of EA, RD, WR, ALE or PSEN pins. The 4 MOVX instructions which move data to and from external RAM should not be used. ...
Page 14
... Port pins P0.5 and P0.6 have current sinking capability to enable LEDs to be driven directly. PWM DAC The SAA5290 has six 6-bit PWM DACs and one14-bit PWM DAC. These allow direct control of other parts of the television. The low resolution 6 bit DACs are controlled by their corresponding SFR (PWM0 to PWM5) and are connected as alternative outputs of Port P2 ...
Page 15
... RAM locations. The registers in the teletext decoder appear as normal SFRs in the microcontroller memory map, but are written to using a serial bus. This bus is controlled by dedicated hardware which uses a simple handshake system for software synchronization. The SFR memory map is given in Table 10. February 1995 15 Preliminary specification SAA5290 ...
Page 16
... Philips Semiconductors One page Economy Teletext/TV microcontroller February 1995 16 Preliminary specification SAA5290 ...
Page 17
... Philips Semiconductors One page Economy Teletext/TV microcontroller February 1995 17 Preliminary specification SAA5290 ...
Page 18
... Philips Semiconductors One page Economy Teletext/TV microcontroller February 1995 18 Preliminary specification SAA5290 ...
Page 19
... Serial data input at SDA. SCI Serial clock input at SCL. CLH Clock LOW-to-HIGH transition flag. BB Bus busy flag. RBF Read bit finished flag. WBF Write bit finished flag. STR Clock stretching enable (logic 1). ENS Enable serial I/O (logic 1). February 1995 FUNCTION 19 Preliminary specification SAA5290 ...
Page 20
... Enable meshing of area with other background colours (logic 1). TRANS ENABLE Black background colour is transparent i.e. video is displayed (logic 1). SHADOW ENABLE Enable south-east shadowing (logic 1). EAST/WEST Western European languages displayed (logic 0) or Eastern European languages displayed (logic 1). February 1995 FUNCTION 20 Preliminary specification SAA5290 ...
Page 21
... Memory row to be accessed with TXT11 SFR. TXT10 - Teletext register 10 (WRITE only Memory column to be accessed with TXT11 SFR. TXT11 - Teletext register data byte written to, or read from, teletext memory. February 1995 FUNCTION 21 Preliminary specification SAA5290 ...
Page 22
... Text interface busy and no access for either READ or WRITE is allowed to SFRs TXT0 to TXT11 (logic 1). This register bit performs the software handshake to the teletext control registers. Table 12 CH1 and CH0 selection CH1 February 1995 CH0 Preliminary specification FUNCTION INPUT PIN none ADC0 ADC1 ADC2 SAA5290 ...
Page 23
... ref 1/3V (mA ref (= slicing level) FILTER gated negative peak detector 1/39V (mA ref Fig.4 Sync separator block diagram. 23 Preliminary specification SAA5290 VCS FILTER BLACK MLC105 ...
Page 24
... Philips Semiconductors One page Economy Teletext/TV microcontroller Teletext acquisition The SAA5290 is able to acquire 625-line World System Teletext. Teletext is acquired under control of the on-board 80C51 microcontroller. Pages are requested by writing a series of bytes into the TXT3 SFR which corresponds to the number of the page required. The bytes written into TXT3 are put into a small RAM with an auto-incrementing address ...
Page 25
... Row 0 is for the page header. The first seven characters ( are free for status messages. Character alphanumeric white or green control character, written automatically by SAA5290 to give a green rolling header when a page is being looked for. The last eight characters are for rolling time. ...
Page 26
... HU0 MU1 MT1 HU1 MU2 MT2 HU2 MU3 C4 HU3 Preliminary specification HT0 C7 C11 HT1 C8 C12 C5 C9 C13 C6 C10 C14 SAA5290 MAG0 0 MAG1 0 MAG2 PBLF ...
Page 27
... When displayed each pixel is 0.5 s wide and 1 TV line, in each field, high. The SAA5290 signals the TV display circuits to display the RGB outputs of the SAA5290 rather than video picture by setting VDS HIGH. The way in which this signal is switched is controlled by the TXT5 and TXT6 SFRs ...
Page 28
... Philips Semiconductors One page Economy Teletext/TV microcontroller Clock generator The oscillator circuit of the SAA5290 is a single-stage inverting amplifier in a Pierce oscillator configuration. The circuitry between OSCIN and OSCOUT is basically an inverter biased to the transfer point. A crystal must be used as the feedback element to complete the oscillator ...
Page 29
... Philips Semiconductors One page Economy Teletext/TV microcontroller CHARACTER SETS February 1995 29 Preliminary specification SAA5290 pagewidth full handbook, ...
Page 30
... PHCB Fig.10 SAA5290 European national option characters. 30 Preliminary specification SAA5290 MLC109 ...
Page 31
... Philips Semiconductors One page Economy Teletext/TV microcontroller APPLICATION INFORMATION February 1995 31 Preliminary specification SAA5290 pagewidth full handbook, ...
Page 32
... Philips Semiconductors One page Economy Teletext/TV microcontroller PACKAGE OUTLINE plane seating February 1995 32 Preliminary specification SAA5290 ...
Page 33
... C, it must not be in contact for more than between 300 and 400 C, for not more than components conveys a license under the Philips’ system provided the system conforms to the I 33 Preliminary specification SAA5290 2 C patent to use the 2 C specification defined by ...