TDA9331H datasheet(13/56 Pages) NXP

13 / 56 page

2002 Jun 04

Philips Semiconductors

Preliminary speciﬁcation

I2C-bus controlled TV display processors

TDA933xH series

Table 15 Cathode drive level (15 steps; 3.6 V/step)

Note

1. The given values are valid for the following conditions:

a) Nominal CVBS input signal.

b) Settings for contrast and white point nominal.

c) Black and blue stretch switched off.

d) Gain of output stage such that no clipping occurs.

e) Beam current limiting not active.

f) Gamma of picture tube is 2.25.

g) The tolerance on these values is approximately

±3V.

Table 16 RGB blanking mode

Table 17 Picture tube discharge time

Note

1. See Chapter “Characteristics”; Fig.15

Table 18 Gain of luminance channel

Table 19 Standby

Table 20 Position of wide blanking (14 steps; 1fH mode

0.29

µs/step; 2f

H mode 0.145 µs/step)

Note

1. See Chapter “Characteristics”; note 13.

Table 21 Horizontal free-running frequency in TV mode

Table 22 Vertical scan reference in 2fH TV mode

Table 23 Time constant phase-1 loop

Table 24 Synchronization mode

Table 25 Overvoltage input mode

CL3

CL2

CL1

CL0

SETTING OF CATHODE

DRIVE AMPLITUDE(1)

0000

41 V (b-w)

1000

70 V (b-w)

1111

95 V (b-w)

HBL

MODE

normal blanking (horizontal ﬂyback)

wide blanking

TFBC

MODE

18.6 ms

25 ms

GAI

MODE

normal gain [V28 = 1 V (b-w)]

high gain [V28 = 0.45 V (p-p)]

STB0

STB1

CONDITION

horizontal drive off

no action

horizontal drive on

HB3

HB2

HB1

HB0

TIMING OF BLANKING(1)

1fH MODE

2fH MODE

−2.03 µs

−1.015 µs

µs0 µs

−

2.03

µs

1.015

µs

HDTV

CDTV

FREQUENCY

1fH MODE

2fH MODE

15.7 kHz

31.4 kHz

14.25 kHz

28.5 kHz

−

16.9 kHz

33.8 kHz

VSR

VERTICAL SCAN REFERENCE

end of VD pulse

start of VD pulse

FAST

TIME CONSTANT

normal

increased by 30%

POC

MODE

synchronization active

synchronization not active

PRD

OVERVOLTAGE MODE

detection mode

protection mode

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