STV9432TA

Features:

• MULTIFUNCTION OSD FOR MONITOR
• INCLUDES FACILITIES FOR CUT-OFF VOLTAGES 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 JITTERFREE 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


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 a serial I2C Bus, the STV9432TA is a multifunction slave peripheral device integrating the following blocks:

- On-screen Display. STV9432TA  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, provides an accurate display without visible jitter for a wide line frequency range from 15 to 140 kHz.

- Cut-off Monitoring Circuitry includes 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 provide the different timing measurements necessary to analyze the current Video timing characteristics 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