PRO-700HD
229
Pin No.
17
18
19
20
21
22
23
24
25
26
27
28
Pin Name
HD output
Sync output
DEF GND
AFC filter
32fH VCO
DEF VCC (9V)
Horizontal output
(Mode SW)
Bending correction
(External CP/BPP
Input)
FBP input
Digital GND
SDA
SCL
I/O
O
O
—
O
O
—
O
I
I
—
I/O
I
Function
(1) When bus HD-OUT=0, outputs the HD pulse imposed with
AFC (pulse width:1 us).
Also provided with a BPP (black peak detection stop pulse)
signal external input function.
(2) When bus HD-OUT=1, and AKB is ON, outputs the AKB
reference period pulse.
Outputs the sync signal separated in the sync separation circuit.
DEF block GND.
Connected to the horizontal AFC filter.
Determines the horizontal output frequency at the voltage of this
pin.
Connected to the ceramic oscillator for horizontal oscillation.
VCC of the DEF block.
Horizontal output pin.
(1) Normal scan mode
Corrects bending of the screen during high voltage changes.
(2) Double speed mode
Inputs the clamp pulse externally when this mode.
Inputs the FBP for generating the pulse for horizontal AFC2, Y
smoothing, horizontal blanking.
I
2
L block GND pin.
I
2
C bus SDA pin.
I
2
C bus SCL pin.
I/O Signal
–
DC
–
HIGH : 3.2V
LOW : 0.2V
–
–
–
1
µ
s
HD
5V
0V
Ext BPP
BPP TH : 1.0V
5V
0V
(1)
(2)
5V
GND
130mVp-p
DC : 5.9V
1.5
µ
s
External clamp pulse
5V
0V
Ext BPP
Ext CP
TH : 3.6V
BPP TH : 1.0V
(1) DC 4.5V
(2)
9V
3.5V
(AFC-2)
1.0V
(H BLK)
