STV9432TAP

Features:

· MULTIFUNCTION OSD FOR MONITOR
· INCLUDES FACILITIES FOR CUT-OFF VOLTAGE MONITORING:
  - THREE 8 BITS ADC INPUTS
  - ADC TRIGGER DURING RETRACE TIME OF A PROGRAMMED LINE
· INCLUDES FACILITIES FOR SCREEN SIZE & CENTERING AUTO SETUP
  - HS, VS, VIDEO TIMING MEASUREMENTS
· 100MHz MAX. PIXEL CLOCK, AVAILABLE FOR ANY LINE FREQUENCY BETWEEN 15 AND 140 kHz
· 12 x 18 CHARACTER ROM FONT INCLUDES:
  - 240 MONOCOLOR CHARACTERS
  - 16 MULTICOLOR CHARACTERS
· CHARACTER FLASHING
· UP TO 1K CHARACTERS TEXT DISPLAY
· ULTRA HIGH FREQUENCY PLL FOR
· JITTER-FREE DISPLAY
· FLEXIBLE DISPLAY:
  - ANY CHARACTER WIDTH AND HEIGHT
  - ANYWHERE IN THE SCREEN
· SINGLE BYTE CHARACTER CODES AND COLOR LOOK-UP TABLE FOR EASY PROGRAMMING AND FAST ACCESS
· CHARACTER FLIP OPERATIONS
· WIDE DISPLAY WINDOW ALLOWS PATTERN GENERATION FOR FACTORY ADJUSTMENTS
· I²C BUS MCU INTERFACE
· FIVE 8 BITS PWM DAC OUTPUTS


Pinout




Specifications

Symbol	Parameter	Value	Unit
AVDD,DVDD,OVDD	Supply Voltage	-0.3, +6.0	V
VIN	Input Voltage	Vss-0.3,VDD + 0.3	V
Toper	Operating Temperature	0, +70
Tstg	Storage Temperature	-40, +125

Description

Connected to a host MCU via its serial I²C Bus, the STV9432TAP is a multifunction slave peripheral device integrating the following blocks:

- On-screen Display. STV9432TAP includes a MASK PROGRAMMABLE ROM that holds the CUSTOM CHARACTER FONT, a 1Kbytes RAM that stores the code strings of the different lines of text to be displayed, and a set of registers to program character sizes and colors. A built-in digital PLL, operating at very high frequency, gives an accurrate display without visible jitter for a wide line frequency range from 15 to 140 kHz.

- Cut-off Monitoring Circuitry includes: 5 x 8 bits PWM DACs, 3 x 8 bits ADCs and a programmable ADC sampling trigger. It gives the possibility to measure the three beam currents, during the horizontal flyback, at a given line in the frame, provided that the three ADC inputs are connected to a beam current sensing circuitry. The values are stored in three BEAM CURRENT REGISTERS,and available for MCU read.

- Video Timing Analyzer. Using the Horizontal Sync,Vertical Sync, Horizontal Flyback, and "Video Active" inputs, a set of counters give the different timing measurements necessary to analyze the current Video timing characteristics in order to make the automatic set-up of screen size and centering.The measurements are initialized on the same programmable trigger line than in the above cut-off monitoring circuitry.