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TB1261F/TB1262F
2002-6-30 9 / 66
Pin
#
35
(31)
Description
DIG. VDD ;
A Vdd terminal for of digital block. Supply
HVcc voltage through 270 ohms of resistance.
The coupling capacitor should be 10uF or less,
in order to keep rise up time good enough.
The voltage of this terminal is clipped to
approximately 3.3V by the internal regulator.
Dac2;
A terminal to be output High/ Low status by an
open collector interface. The pull up resistance
should be fixed as a sink current is 1mA or less
and the voltage is less than the voltage of H
Vcc.
FBP IN;
An input terminal for FBP. V/GP pulses are
output over this FBP.
The Threshold levels are;
1.4 V ; for Blanking
3.7 V; for HAFC2
nc;
H OUT;
An output terminal for horizontal driving
pulses.;
VD OUT;
An output terminal for VD pulses. The pulses
are 3V for its level.
HD OUT;
An output terminal fot HD pulses. GP Pulses
are overlaid as SCP.
Also BPP is overlaid to stop black stretch
detecting.
Those levels are
5V;
for GP out
3V;
for HD out
0.7V;
for BPP in
Sync out;
An output terminal of the sliced sync pulses.
Pull up this pin with 5.1k
Ω
of resistance.
H AFC Filter;
A terminal should be connected with H. AFC
Filter. The DC voltage of this pin controls the H
VCO frequency.
Y3/CVBS3 IN;
An alternative input terminal for;
-
Y + Sync signals of Y/Cb/Cr_3
-
Or CVBS_3
Those two are selected by IICBUS
This terminal is clamped by charging /
discharging the coupling capacitors. It is
recommended that input impedance is kept at
or below 100
Ω
. Input level 1Vp-p/140IRE
H VCC (9V);
A Vcc terminal for DEF circuit, HOUT, IICBUS
POR, etc. Supply 9V.;
36
QFP
only
37
(32)
38
39
(33)
40
QFP
only
41
QFP
only
42
QFP
only
43
(34)
44
QFP
only
45
(35)
Pin
#
46
(36)
Description
V RAMP;
A terminal should be connected with a capacitor
to generate the V.Ramp signal.Connect this pin
to GND via 0.47uF.The V.Ramp amplitude is
kept constant by the V.AGC.;
V OUT;
An output terminal for the vertical saw tooth
wave.
Cb3 IN;
Cr3 IN;
Input terminals for ;
-
Cb and Cr signals of Y/Cb/Cr_3
These terminals are clamped by charging /
discharging the coupling capacitors. It is
recommended that input impedance is kept at
or below 100
Ω
.
DIG GND;
A GND terminal for digital block.;
Cr OUT;
Cb OUT;
Output terminals for demodulated Cb and Cr
signals.
Y/Mon OUT
An alternative output terminal for;
-
Y signal after Y1 process
-
Or Mon out after selector
Those two are selected by IICBUS
BLACK DET;
A terminal should be connected with Black
level detecting filter for black stretch. This
terminal voltage controls the Black stretching
gain. The IIC Bus controls the on/off and start
point of the Black stretch. ;
Y2/CVBS2/G IN
An alternative input terminal for;
-
Y + Sync signals of Y/Cb/Cr_2 in
-
Or CVBS_2
-
Or G signal of Scart Y/R/G/B in
Those three are selected by IICBUS.
These terminals are clamped by charging /
discharging the coupling capacitors. It is
recommended that input impedance is kept at
or below 100
Ω
.
Cb2/B IN;
Cr2/R IN;
Alternative input terminals for;
-
Cb and Cr signals of Y/Cb/Cr_2
-
Or R and B signal of Scart Y/R/G/B in
Those three are selected by IICBUS
These terminals are clamped by charging /
discharging the coupling capacitors. It is
recommended that input impedance is kept at
or below 100
Ω
.
CIN;
An input terminal for chroma signal (standard
burst amplitude level 286mVp-p). The dc level
of this pin can be read by bus to detect if S port
is connected or not.;
47
(37)
48
49
QFP
only
50
(38)
51
52
(39)
(40)
53
(41)
54
(42)
55
(43)
56
57
(44)
(45)
58
(46)