TDA933XH

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Ci � CL
100 k&!
XTALI XTALO
Ca � Cb
CL = Cp � --------------------
Ca � Cb
crystal
Li Ci Ri
Ci
or
Cp
ceramic
resonator
Requirement for start-up:
2 19
Ca Cb C � Ri d" 1.1 � 10
L
MGR447
Fig.3 Simplified diagram crystal oscillator.
MGR448
100
handbook, full pagewidth
blending
(%)
80
external
60
40
internal
20
0 0.2 0.4 0.6 0.8 1.0 1.2 1.4
Vinsert (V)
0.31 0.725 1.14
Fig.4 Blending characteristic (typical curve and minimum/maximum limits).
1998 Oct 22 32
Philips Semiconductors Preliminary specification
I2C-bus controlled TV display processors TDA933xH series
MGR449
MGR450
300
(%)
100
250
(%)
90
225
80
200
70
175
60
150
50
125
40
100
30
75
20
50
10
25
0 10 20 30 40
0 10 20 30 40
DAC (HEX)
DAC (HEX)
Fig.5 Saturation control curve. Fig.6 Contrast control curve.
MGR451 MGR452
100
handbook, halfpage
0.7
output
(IRE)
(V)
80
0.35
60
40
20
B
-0.35
0 B
A
A
-0.7
-20
0 40 80 120
input (IRE)
0 10 20 30 40
DAC (HEX)
Conditions:
Settings for cathode drive level and white point nominal.
Gain of RGB amplifiers such that the amplitude at the RGB outputs A-to-A: maximum black level shift.
is 2 V (b-w).
B-to-B: level shift at 15% of peak white.
Relative to cut-off level.
Fig.7 Brightness control curve. Fig.8 I/O relation of black level stretch circuit.
1998 Oct 22 33
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RESET LINE COUNTER 23
625
Video from
HIP
VD = VA
1st
HD = HA
field
Internal
2fH clock
L R G B
AKB pulses
Vertical
blank
Reset vertical
sawtooth
336
312
Video from
HIP
VD = VA
2nd
field
HD = HA
L R G B
AKB pulses
Vertical
blank
50 Hz
VD
HD
Internal
1st
2fH clock
field
L R G B
AKB pulses
Vertical
blank
Reset vertical
sawtooth
VD
HD
2nd
L R G B
field
AKB pulses
Vertical
blank
MGR453
60 Hz
Fig.9 Vertical timing pulses for 1fH TV mode.
1998 Oct 22
Philips Semiconductors
I C-bus controlled TV display processors
2
34
TDA933xH series
Preliminary specification
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RESET LINE COUNTER REFERENCE VWAIT
VD
HD
Internal
1st
2fH clock
field
L R G B
AKB pulses
Vertical
blank
VWAIT = 12
Reset vertical
sawtooth
VD
HD
2nd
L R G B
field
AKB pulses
Vertical
blank
2fH TV mode (VSR = 0)
RESET LINE COUNTER = REFERENCE VWAIT
VD
HD
Internal
2fH clock
L R G B
AKB pulses
Vertical
blank
VWAIT = 18
Reset vertical
sawtooth
Vertical sawtooth
measure pulse
MGR454
2fH VGA mode
Fig.10 Vertical timing pulses for 2fH TV mode and VGA mode.
1998 Oct 22
Philips Semiconductors
I C-bus controlled TV display processors
2
35
TDA933xH series
Preliminary specification
Philips Semiconductors Preliminary specification
I2C-bus controlled TV display processors TDA933xH series
MGR455
4
handbook, halfpage
RGBO
[V (b-w)]
clipper off
3
C
tangent
clipper on
C
2
1
0 20 40 60 80 100
YIN (IRE)
C-to-C: maximum deviation between tangents and actual curve.
See also Chapter Characteristics ; note 18.
Fig.11 Soft clipper characteristic.
handbook, full pagewidth MGL475
70
top
vertical
picture
position 60
(%)
50
138%
40
100%
30
75%
20
10
1/2 t t
time
-10
-20
-30
-40
-50
bottom
-60
picture
blanking for zoom 138%
Fig.12 Vertical drive waveform and blanking pulse for different zoom factors.
1998 Oct 22 36
Philips Semiconductors Preliminary specification
I2C-bus controlled TV display processors TDA933xH series
MGR456
handbook, halfpage
100
ESS = 1
ton normal
(%)
75
12
0 100 200 300 400 500
t (ms)
Fig.13 Soft-start behaviour.
1998 Oct 22 37
Philips Semiconductors Preliminary specification
I2C-bus controlled TV display processors TDA933xH series
handbook, full pagewidth
VD VD
HD HD
CLK2fH CLK2fH
HBLNK HBLNK
field 1 detection field 1 detection
VD VD
HD HD
CLK2fH CLK2fH
HBLNK HBLNK
field 2 detection field 2 detection
MGR461
a. Falling edge of VD pulse is reference (VSR = 0). b. Rising edge of VD pulse is reference (VSR = 1).
See also Chapter Characteristics ; note 38.
Fig.14 Field detection mechanism.
1998 Oct 22 38
Philips Semiconductors Preliminary specification
I2C-bus controlled TV display processors TDA933xH series
TEST AND APPLICATION INFORMATION
RGB-1 RGB-2 RGB-3 RGB-4
handbook, full pagewidth
TUNER AGC
Y YIN
RO
SAW
IF
U UIN
FILTER
GO
V VIN
BO
CVBS-1
AV-1
BCL
FEATURE
CVBS-2
TDA932xH TDA933xH BLKIN
BOX
AV-2
VDOA
CVBS/Y-3 VDOB
HA HD
C-3
EWO
VA VD
CVBS/Y-4 HOUT
C-4
HFB
MGR462
CVBS Y C
CVBS(TXT)
COMB FILTER
CVBS(PIP)
Fig.15 Application diagram.
1998 Oct 22 39
Philips Semiconductors Preliminary specification
I2C-bus controlled TV display processors TDA933xH series
MGL484
MGL483
600 800
handbook, halfpage
handbook, halfpage
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