STV7610A/WAF データシートの表示（PDF） - STMicroelectronics
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STV7610A/WAF Datasheet PDF : 17 Pages
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STV7610A
CIRCUIT DESCRIPTION
The STV7610A contains all the logic and the pow-
er circuits necessary to drive the columns of a
Plasma Display Panel (P. D. P.). The binary value
of each pixel of the displayed line is loaded into the
shift register. Data are input in a 6-bit wide data
bus to A1 - A6 input (case of forward shift mode).
Data are shifted at each low to high transition of
the CLK shift clock. After 16 shifts the first data are
available on B1 - B6 outputs. These B1 - B6 out-
puts can be used to cascade several drivers to
perform any horizontal resolution. The forward/
reverse (FOR/REV ) input is used to select the
direction of the shift register, A1 - A6 and B1 - B6
data bus input/output status is set according to the
selected direction. FOR/ REV = H, A is an input
and B is an output.
Serial inputs, CLK, STB inputs are Smith trigger in-
puts. If not used in the application, Blanking
( BLK ), Polarity (POL are internaly pulled to level
”H”. The maximum frequency of the shift clock is
20 MHz. This leads to an equivalent 120 MHz se-
rial shift register.
On low level of STB, data is transferred from shift
register to the latch stage. Data will not be re-
freshed as long as STB is kept high.
Blanking input (BLK ) forces the power outputs to
low level when pulled low. All the power outputs
are set at high level when the Polarity command
(POL) is pulled low and the Blanking (BLK ) input
is at high level.
VSSSUB and VSSLOG must be connected as close
as possible to the logical reference ground of the
application.
Shift Register Truth Table
Input
Input/Outp ut
Shift Register
Fu nction
FOR/ REV CLK A
B
Output Q
H
Rise IN OUT Forward shift
H
H or L IN OUT Steady
L
Rise OUT IN Reverse shift
L
H or L OUT IN Steady
Power Output Truth Table
Qn
STB BL K
PO L Driver
Outp ut
Comments
X
X
L
X
L Output low
X
X
H
L
H Output high
X
H
H
H
Qn Data latched
L
L
H
H
L Data copied
H
L
H
H
H Data copied
Note 1 Qn+1 = A1, Qn + 2 = A2, Qn + 3 = A3, Qn + 4 =
A4, Qn + 5 = A5, Qn + 6 = A6, n = [0,6,12,18,...,90]
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