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EK7601 PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EK7601
기능 240 Output Analog Source Driver For av Application Cof
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EK7601 데이터시트, 핀배열, 회로
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֮ٙټጠ DOC Title Κ
EK7601 Data Sheet
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REV.
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2002/02/2˄
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Eff. Date
2002/3/5
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CONFIDENTIAL




EK7601 pdf, 반도체, 판매, 대치품
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EUREKA
1. INTERNAL BLOCK DIAGRAM
QA1
QB1
QC1
QA2
INH
++++
EK7601
QA80 QB80 QC80
+++
Q1H
Q2H
VA (R)
VB (G)
VC (B)
TEST2
SHA SHB
SHA SHB
SHA SHB
SHA SHB
SHA SHB
SHA SHB
SHA SHB
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L/R
CPH1
CPH3
MODE
STH1
Clock
MUX
SR
SR SR SR
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Figure 1.1: Block diagram
SR SR SR STH2
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1. Clock MUX
Selects if the sampling is simultaneous or sequential and the clocks are divided by three
or not. Also gates the clock.
2. 3 x 80-bit bi-directional shift register
Generates enable signals for sequential sampling 80 groups of 3 input colours.
3. Line control
Select sample circuit SHA or SHB and the high impedance output state
4. SH control MUX
Select which sample and hold circuit samples the analogue input value.
5. RGB MUX
According to the controls signals, selects which input colour goes to which group of
outputs.
6. Sample and hold Circuit (SHA, SHB)
LSample the input voltage when the enable signal of the shift register is generated and
IAhold this value until it is stored on the panel.
T7. Buffers
NDrive the sample greyscale voltage on the panel.
CONFIDE- 3 - Rev 1.0 Feb.21.2002
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EK7601 전자부품, 판매, 대치품
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EUREKA
EK7601
TEST2
MODE
Q1H
Q2H
RESET
VDD
VSS
AVDD
AVSS
Input
(Pull-up)
Input
(Pull-down
@ TEST2 = L)
Input
(Pull-down
@ TEST2 = L)
Input
(Pull-down
@ TEST2 = L)
Power
Power
Power
Power
Input signal colour rotation mode selector
TEST2 = L: No data rotation mode.
Input voltage of each output QaX, QbX and QcX are selected
from VA, VB and VC according to the control signal Q1H and
Q2H.
Simultaneous or sequential clock mode is selected by MODE.
TEST2= H or open: Automatic rotation mode.
Input voltage of each output QaX, QbX and QcX are selected
automatically from VA, VB and VC according to the filter arrays,
selected by the control signal Q1H and Q2H.
Simultaneous or sequential clock mode is selected by Q1H,
Q2H.
Sampling mode selection
MODE = L or open: Sequentially sampling
MODE = H: Simultaneous sampling
This signal is only usable when TEST2= L.
Colour selection input
When TEST2 = L: Q1H and Q2H select which input voltage
(VA, VB, VC) correspond to QaX, QbX, QcX outputs.
When TEST2 =H: Q1H and Q2H select the filters array colours
sequence. Q1H and Q2H select also simultaneous/sequential
mode according to the equation below.
Q1H = Q2H = 0: Simultaneous sampling
Q1H =1 OR Q2H = 1: Sequential sampling
The colour selection table and filter array are describe on page
12.
AutomDaatticaScholeoeutr4sUe.lceocmtion Initialisation
Reset the system of the automatic rotation mode. To initialise
the module a pulse on INH must be applied after reset.
This function is only usable when TEST2=H. When not used
should be L or open.
Logic part power supply
Logic part ground
Analogue part power supply
Analogue part ground
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CONFIDENTIAL- 6 - Rev 1.0 Feb.21.2002

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