This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice.

Version 4.0

February 2000

1/25

STV9432TAP

100MHz OSD FOR MONITOR INCLUDING

BEAM CURRENTS, VIDEO TIMING ANALYZER AND PWMs

s

MULTIFUNCTION OSD FOR MONITOR

s

INCLUDES FACILITIES FOR CUT-OFF VOLT-

AGE MONITORING:

- THREE 8 BITS ADC INPUTS

- ADC TRIGGER DURING RETRACE TIME OF A

PROGRAMMED LINE

s

INCLUDES FACILITIES FOR SCREEN SIZE &

CENTERING AUTO SETUP

- HS, VS, VIDEO TIMING MEASUREMENTS

s

100MHz MAX. PIXEL CLOCK, AVAILABLE FOR

ANY LINE FREQUENCY BETWEEN 15 AND 140

kHz

s

12 x 18 CHARACTER ROM FONT INCLUDES:

- 240 MONOCOLOR CHARACTERS

- 16 MULTICOLOR CHARACTERS

s

CHARACTER FLASHING

s

UP TO 1K CHARACTERS TEXT DISPLAY

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ULTRA HIGH FREQUENCY PLL FOR

s

JITTER-FREE DISPLAY

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FLEXIBLE DISPLAY:

- ANY CHARACTER WIDTH AND HEIGHT

- ANYWHERE IN THE SCREEN

s

SINGLE

BYTE

CHARACTER

CODES

AND

COLOR LOOK-UP TABLE FOR EASY PRO-

GRAMMING AND FAST ACCESS

s

CHARACTER FLIP OPERATIONS

s

WIDE DISPLAY WINDOW ALLOWS PATTERN

GENERATION FOR FACTORY ADJUSTMENTS

s

s

FIVE 8 BITS PWM DAC OUTPUTS

DESCRIPTION

Connected to a host MCU via its serial I

STV9432TAP is a multifunction slave peripheral

device integrating the following blocks:

- On-screen Display. It includes a MASK PRO-

GRAMMABLE 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 char-

acter sizes and colors. A built-in digital PLL, oper-

ating at very high frequency, gives an accurrate

display without visible jitter for a wide line fre-

quency 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 hori-

zontal flyback, at a given line in the frame, pro-

vided 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 cen-

tering. The measurements are initialized on the

same programmable trigger line than in the above

cut-off monitoring circuitry.

.

SO28

(Plastic Micropackage)

ORDER CODE: STV9432TAP

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