hd66789 Renesas Electronics Corporation., hd66789 Datasheet - Page 117
hd66789
Manufacturer Part Number
hd66789
Description
528-channel, One-chip Driver For Amorphous Tft Panels With 262,144-color Display Ram, Power Supply Circuit, And Gate Circuit
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66789.pdf
(156 pages)
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HD66789
The grayscale levels (V0-V31) are calculated according to the following formulas.
Formulas for calculating voltage (Positive polarity) (1)
Rev.0.12, May 09 2003, page 117 of 156
Pin
KVP0
KVP1
KVP2
KVP3
KVP4
KVP5
KVP6
KVP7
KVP8
KVP9
KVP10
KVP11
KVP12
KVP13
KVP14
KVP15
KVP16
KVP17
KVP18
KVP19
KVP20
KVP21
KVP22
KVP23
KVP24
KVP25
KVP26
KVP27
KVP28
KVP29
KVP30
KVP31
KVP32
KVP33
KVP34
KVP35
KVP36
KVP37
KVP38
KVP39
KVP40
KVP41
KVP42
KVP43
KVP44
KVP45
KVP46
KVP47
KVP48
KVP49
SUMRP : Sum of positive ladder resistors = 128R+VRHP+VRLP+VRP0+VRP1
SUMRN : Sum of negative ladder resistors =
VREG1OUT - ∆ V*VRP0/SUMRP
VREG1OUT - ∆ V* VRP0+5R)/SUMRP
VREG1OUT - ∆ V* VRP0+9R)/SUMRP
VREG1OUT - ∆ V* VRP0+13R)/SUMRP
VREG1OUT - ∆ V* VRP0+17R)/SUMRP
VREG1OUT - ∆ V* VRP0+21R)/SUMRP
VREG1OUT - ∆ V* VRP0+25R)/SUMRP
VREG1OUT - ∆ V* VRP0+29R)/SUMRP
VREG1OUT - ∆ V* VRP0+33R)/SUMRP
VREG1OUT - ∆ V*(VRP0+33R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+34R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+35R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+36R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+37R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+38R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+39R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+40R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+45R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+46R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+47R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+48R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+49R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+50R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+51R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+52R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+68R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+69R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+70R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+71R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+72R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+73R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+74R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+75R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+80R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+81R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+82R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+83R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+84R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+85R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+86R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+87R+VRHP)/SUMRP
VREG1OUT - ∆ V*(VRP0+87R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+91R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+95R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+99R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+103R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+107R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+111R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+115R+VRHP+VRLP)/SUMRP
VREG1OUT - ∆ V*(VRP0+120R+VRHP+VRLP)/SUMRP
∆V : Voltage difference between VREG1OUT and VGS
Formula
128R+VRHN+VRLN+VRN0+VRN1
Fine adjustment register value
PKP02-00 = "001"
PKP02-00 = "010"
PKP02-00 = "011"
PKP02-00 = "100"
PKP02-00 = "110"
PKP02-00 = "000"
PKP02-00 = "101"
PKP02-00 = "111"
PKP12-10 = "000"
PKP12-10 = "001"
PKP12-10 = "010"
PKP12-10 = "011"
PKP12-10 = "100"
PKP12-10 = "101"
PKP12-10 = "110"
PKP12-10 = "111"
PKP22-20 = "000"
PKP22-20 = "001"
PKP22-20 = "010"
PKP22-20 = "011"
PKP22-20 = "100"
PKP22-20 = "101"
PKP22-20 = "110"
PKP22-20 = "111"
PKP32-30 = "000"
PKP32-30 = "001"
PKP32-30 = "010"
PKP32-30 = "011"
PKP32-30 = "100"
PKP32-30 = "101"
PKP32-30 = "110"
PKP32-30 = "111"
PKP42-40 = "000"
PKP42-40 = "001"
PKP42-40 = "010"
PKP42-40 = "011"
PKP42-40 = "100"
PKP42-40 = "101"
PKP42-40 = "110"
PKP42-40 = "111"
PKP52-50 = "000"
PKP52-50 = "001"
PKP52-50 = "010"
PKP52-50 = "011"
PKP52-50 = "100"
PKP52-50 = "101"
PKP52-50 = "110"
PKP52-50 = "111"
-
-
Reference
Voltage
VINP0
VINP1
VINP2
VINP3
VINP4
VINP5
VINP6
VINP7
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