Drivers for Large LCD Panels
6bit RSDSTM Source Driver
BU95303
No.10043EAT02
●Description ROHMLCD drivers for large panels are display drivers optimized for large LCDs in a variety of applications, including desktop PCs, laptops, and TVs. The broad lineup is offered in low amplitude differential transmission interface type TM (RSDS ) featuring low EMI, 6bit gradation precision, and different output configurations (432 and up) for wide compatibility. ●Features 1) 384/414/420/432 output channels TM 2) 6bit 9pair RSDS inputs 3) Dot & n-line inversion available 4) Built-in 2ch repair amplifiers 5) γ correction is possible 6) Built-in input data reversing function (INV) 7) Output voltage range : AVSS+0.1V ~ AVDD-0.1V 8) High speed data transfer: fCLK(MAX)=85MHz 9) Logic power supply voltage (DVDD) : 2.7 ~ 3.6V 10) Driver power supply voltage (AVDD) : 10.0 ~ 13.5V 11) Package: COF35 ●Applications TFT LCD Panels ●Line up matrix BU95101 Number of outputs 384 BU95303 384 / 414 / 420 / 432 BU95306 600 / 618 / 630 / 642 BU95408 684 / 690 / 702 / 720
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●Absolute maximum ratings Parameter Logic power supply voltage Driver power supply voltage Logic input voltage Logic output voltage Driver input voltage Driver output voltage Storage temperature range Symbol DVDD AVDD VI1 VO1 VI2 VO2 Tstg Ratings -0.3 ~ +4.5 -0.3 ~ +14.0 -0.3 ~ DVDD+0.3 -0.3 ~ DVDD+0.3 -0.3 ~ AVDD+0.3 -0.3 ~ AVDD+0.3 -55 ~ +125 Unit V V V V V V ℃
Technical Note
●Recommended operating range Parameter Logic power supply voltage Driver power supply voltage Symbol DVDD AVDD V0 ~ V6 γ-correction reference voltage V7 ~ V13 Driver output voltage Output load capacitance Maximum clock frequency Operating temperature range
* AVSS=DVSS=0V
Ratings +2.7 ~ +3.6 +10.0 ~ +13.5 0.5 AVDD ~ AVDD-0.1 0.1 ~ 0.5 AVDD 0.1 ~ AVDD-0.1 80 85 -10 ~ +85
Unit V V V V V pF MHz ℃
VO CL fCLK(MAX) Topr
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BU95303
●Electrical characteristics (DC) (Unless otherwise noted, Ta=-10 ~ +85℃, DVDD=2.7 ~ 3.6V, AVDD=10.0 ~ 13.5V, DVSS=AVSS=0V) Limits Parameter Symbol Unit Conditions Min. Typ. Max. Logic Part Logic supply current Input “H” voltage Input “L” voltage Input “H” current Input “L” current Input “H” current 2 Input “L” current 2 Input “H” current 3 Input “L” current 3 Output “H” voltage Output “L” voltage Driver part Driver supply current γ correction resistance Output voltage deviation Output swing voltage Deviation Output voltage deviation 2 (between chips) Repair input voltage Repair input “H” current Repair input “L” current Driver output “H” current Driver output“L” current RSDS RSDS
TM TM
Technical Note
IDDL V1H V1L I1H1 I1L1 I1H2 I1L2 I1H3 I1L3 VOH VOL
0.7DVDD 0 -1 -3 -3 -40 DVDD-0.5 -
20 -20 -
8 DVDD 0.3DVDD +1 40 +3 +3 0.5
mA V V μA μA μA μA μA μA V V
DVDD=3.3V, Data=00h-3Fh(dot), fclk=65MHz, fstb=50kHz, 1Line-inverison R/L,SFTR,INV ,SFTL, POL,STB,SEL0,SEL1, LPC0, LPC1 VIN=DVDD VIN=DVSS VIN=DVDD DVDD=3.3V VIN=DVSS VIN=DVDD VIN=DVSS DVDD=3.3V IOH=-1.0mA IOL=1.0mA fCLK=85MHz,DATA=00h, fSTB=56kHz,fPOL=28kHz, No Load AVDD=12V,V0=11.9V, V13=0.1V V0 ~ V6 V7 ~ V13 AVDD=12V Yout=0.1V ~ 1.5V,Yout=10.5V ~ 11.9V AVDD=12V, Yout=1.5V ~ 10.5V AVDD=12V, Yout=0.1V ~ 1.5V,Yout=10.5V ~ 11.9V AVDD=12V, Vout=1.5V ~ 10.5V AVDD=12V, Data=32-gray Dxx, SFTR, POL, INV, SFTL,CLK,STB,R/L SEL0,SEL1, LPC1,LPC0, Built-in Pull down R Built-in Pull up R
SFTR,SFTL
IDDA RγUP RγLOW VOD1*1
0.7Typ 0.7Typ 0.1 -1 -1 0.4 0.8 100 0.4
11.88 11.88 ±25 ±15 ±25 ±5 200 -200 -
12 1.3Typ 1.3Typ ±40 ±25 ±40 ±10 ±7.5 AVDD-0.1 +1 +1 -0.4 -0.8 -100 DVDD-1.2
mA kΩ kΩ mV mV mV mV mV V μA μA mA mA mA mA mV mV V
VRMS*2 VOD2
*3
V1NB I1BH I1BL IVOHY IVOHR IVOLY IVOLR VIHRSDS VILRSDS VCMRSDS
VIN=AVDD=12 V VIN=AVSS
IREP1,2
Y1 ~ Y432, AVDD=12V, Vx=6 V, Yout=11V OREP1,2 ,AVDD=12V, Vx=6 V, Yout=11V Y1 ~ Y432, AVDD=12V, Vx=6 V,Yout=1V OREP1,2 ,AVDD=12V, Vx=6 V, Yout=1V
input part input “H” voltage VCMRSDS=+1.2V*4 VDIFF=200mV*5
RSDSTM input “L” voltage RSDS common input voltage
*1 *2 *3 *4 *5
TM
CLKP/N,DXXP/N (X=0,1,2)
VOD1=measured output voltage - averaged output voltage of all outputs VRMS=measured output swing voltage - averaged output swing voltage of all outputs VOD2=averaged output voltage - target value VCM RSDS = (VCLKP+VCLKN)/2 or (VDXXP+VDXXN)/2 VDIFF = VCLKP- VCLKN or VDXXP-VDXXN
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BU95303
●Electrical characteristics (AC) (Unless otherwise noted, Ta=-10 ~ +85℃, DVDD=2.7 ~ 3.6V, AVDD=10.0 ~ 13.5V, DVSS=AVSS=0V) Limits Parameter Symbol Unit Min. Typ. Max. Clock pulse width Clock pulse "H" period Clock pulse "L" period Data setup time Data hold time Start pulse setup time Start pulse hold time Start pulse width Carry output delay time STB pulse width Final data timing Time between STB↑and start pulse↑ Time between STB↑and CLK↓ POL/STB setup time tw th tl tsu1 thd1 tsu2 thd2 tWSFT tdc tWSTB tLDT tSTB-SFT tSTB-CLK tsp 1/85MHz 5 5 2 0 1 2 1 1 1 6 4 14 Output delay time tdout *1 *2 *3
Technical Note
Conditions
-
2 11 3 5 5 7
ns ns ns ns ns ns ns CLK period ns CLK period CLK period CLK period ns ns μs μs μs μs LPC:normal LPC:normal LPC:low power LPC:low power
*1*3 *2*3 *1*3 *2*3
CL=15pF
The value is specified when the drive voltage value reaches the target output voltage level of 90%. The value is specified when the drive voltage value reaches the target output voltage level of 6-bit accuracy. Output load condition: R1=R2=R3=10kΩ, C1=C2=C3=20pF
Output
R1
(Test Probe)
R2
R3
C1 Vcom=AVSS
C2
C3
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BU95303
●Block diagram
Technical Note
Y1 Y2 Y3
・・・・・・・・・・・・・・・・・
AVDD AVSS LPC0, LPC1 OREP1 IREP1
2
Output Buffer
・・・・・・・・・・・・・・・・・
Y430 Y431 Y432
OREP2 IREP2
V0 ~V13 POL
14
D/A Converter
666 ・・・・・・・・・・・・・・・・・ 666
Level Shifter
666 ・・・・・・・・・・・・・・・・・
6 66
STB
666
Data Latch
・・・・・・・・・・・・・・・・・ 666
Data Register
D 20P/N~D 22P/N INV
RSDS Rx
D 00P/N~D 02P/N D 10P/N~D 12P/N
Lactch
144bit Bi-directional Shift Register
2
CLK P/ N SFTR R/L
SEL1, SEL0
DVDD
DVSS
SFTL
Fig.1 Block diagram
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BU95303
●Pin configuration
IREP2 OREP2 DVDD SFTL D22P D22N D21P D21N D20P D20N D12P D12N D11P D11N D10P D10N DVDD LPC0 R/L V13 V12 V11 V10 V9 V8 V7 AVDD AVSS V6 V5 V4 V3 V2 V1 V0 DVSS CLKP CLKN STB POL INV D02P D02N D01P D01N D00P D00N SEL1 SEL0 SFTR OREP1 IREP1 BUMP IC Y432 Y431 Y430 ・ ・ ・
Technical Note
・ ・ ・ ・ ・ ・ ・
・ BU95303 ・ ・ ・ Top View ・ ・ ・ ・ ・ ・ ・ ・ ・
Y3 Y2 Y1 ↓ BUMP
Fig.2 Pin configuration (Top View)
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BU95303
●Pin Descriptions Pin Name D00P/N ~ D02P/N D10P/N ~ D12P/N D20P/N ~ D22P/N CLKP/N Y1 ~ Y432 R/L In/Out In In Out In Active Descriptions
Technical Note
RSDSTM input terminals of display data Differential The 3-bit differential input pairs generate the internal 6-bit data through the comparison between DXXP and DXXN. Differential TM The RSDS clock input pair generate the internal shift clock through the comparison between CLKP and CLKN.
Driver outputs for D/A converted 64 gray scale analog voltage. The shift direction of internal shift register is controlled by this pin as shown below. R/L=H : Right shift SFTR→Y1→Y432→SFTL R/L=L : Left shift SFTL→Y432→Y1→SFTR The output channel number is controlled by this pin as shown below. Number of effective SEL1 SEL0 Invalid output terminal output terminal H H 384 Y193 ~ Y240 become Hi-Z H L 414 Y208 ~ Y225 become Hi-Z L H 420 Y211 ~ Y222 become Hi-Z L L 432(default) This pin is pulled down to the DVSS inside the IC. Low power control pin LPC1 LPC0 power condition H H Strong power H L Normal power L H Ultra-low power L L Low power(default). This pin is pulled down to the DVSS inside the IC. SFTR=H: Right shift start pulse input terminal in cascade connection. SFTR=L: Carry output terminal in cascade connection. SFTL=H: Carry output terminal in cascade connection. SFTL=L: Left shift start pulse input terminal in cascade connection. The data in the data register are transferred to the data latch at the rising edge of STB, then the gray scale voltages are output from the buffer at the falling edge of STB. Terminal to specify inverting or non-inverting of display data INV:H : Input data are inverted in the IC. INV:L : Input data are not inverted. Input for the γ-correction reference voltage The following external reference voltages are input. At the rising edge of STB, the state of POL are transferred to the driver. POL=H : The reference voltage for odd number outputs are V0 to V6 and those for even number outputs are V7 to V13. POL=L : The reference voltage for odd number outputs are V7 to V13 and those for even number outputs are V0 to V6 Repair amplifier input Repair amplifier output Power supply for driver block Ground for AVDD Power supply for digital block Ground for DVDD
SEL0 SEL1
In
-
LPC0 LPC1
In
H
SFTR SFTL STB INV V0 ~ V13
In/Out In/Out In In In
H H
H -
POL
In
-
IREP1,2 OREP1,2 AVDD AVSS DVDD DVSS
In Out In In In In
-
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BU95303
●Relationship between Input Data and Output Terminals R/L=H (Right Shift) First Data Output R/L=L (Left Shift) First Data Output D00P ~ D02N Y430 D10P ~ D12N Y431 D20P ~ D22N Y432 → … … D00P ~ D02N Y1 Last D10P ~ D12N Y2 D00P ~ D02N Y1 D10P ~ D12N Y2 D20P ~ D22N Y3 → … … D00P ~ D02N Y430 Last D10P ~ D12N Y431
Technical Note
D20P ~ D22N Y432
D20P ~ D22N Y3
●Relationship between R/L , SFTR , SFTL and Output Direction R/L pin controls the shift direction of the internal shift resistor as shown below. Terminal Right Shift Mode Left Shift Mode R/L SFTR SFTL Output direction “H” Input Output Y1,Y2,Y3→Y432,Y431,Y430 “L” Output Input Y432,Y431,Y130→Y3,Y2,Y1
●Relationship between POL and Output Polarity POL Y1 Y2 Y3 Y4 Y5 Y6 ・ ・ Y427 Y428 Y429 Y430 Y431 Y432
*1
“H” + + + ・ ・ + + + *1
“L” -*1 + + + ・ ・ + + +
+: The reference voltage are V0 ~ V6 -: The reference voltage are V7 ~ V13
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BU95303
●Relationship between Input Data and Output Voltage The LCD driver output voltages are determined by the input data and 14γ-corrected power supply. 0.1V≦V13≦V12≦V11≦V10≦V9≦V8≦V7≦0.5AVDD 0.5 AVDD≦V6≦V5≦V4≦V3≦V2≦V1≦V0≦AVDD -0.1V
Technical Note
V0 (VH0) V1 (VH1)
V2 (VH16) V3 (VH32) V4 (VH48) V5 (VH62) V6 (VH63)
V7 (VL63) V8 (VL62) V9 (VL48) V10 (VL32) V11 (VL16)
V12 (VL1) V13 (VL0) 62 63
00 01
16
32
48
Fig.3
Input data - γ correction curve
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BU95303
●γ correction Power Supply Circuit 14 external γ-corrected power supply is connected to ladder resistors inside IC.
Technical Note
IC internal circuit V0
V1 RS0 V2 RS1 V3 RS2 V4 RS3
V5
V6 External γ correction power supply
V7
V8 RS4 V9 RS5 V10 RS6 V11 RS7 V12
V13
Fig.4
γ correction power supply circuit
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BU95303
●RSDSTM data timing
Technical Note
thd2 tsu2
thd1 tsu1
thd1 tsu1
CLKP/N
SFTR
D00P/N
Y1 (0)
Y1 (1)
Y4
(0)
Y4 (1)
Y7 (0)
Y7 (1)
D01P/N
Y1 (2)
Y1 (3)
Y4 (2)
Y4 (3)
Y7 (2)
Y7 (3)
D02P/N
Y1 (4)
Y1 (5)
Y4 (4)
Y4 (5)
Y7 (4)
Y7 (5)
D10P/N
Y2 (0)
Y2 (1)
Y5 (0)
Y5 (1)
Y8 (0)
Y8 (1)
D11P/N
Y2
(2)
Y2 (3)
Y5 (2)
Y5 (3)
Y8 (2)
Y8 (3)
D12P/N
Y2
(4)
Y2 (5)
Y5 (4)
Y5 (5)
Y8 (4)
Y8 (5)
D20P/N
Y3
(0)
Y3 (1)
Y6 (0)
Y6 (1)
Y9 (0)
Y9 (1)
D21P/N
Y3 (2)
Y3 (3)
Y6 (2)
Y6 (3)
Y9 (2)
Y9 (3)
D22P/N
Y3 (4)
Y3 (5)
Y6 (4)
Y6 (5)
Y9 (4)
Y9 (5)
Fig.5 RSDSTM data timing
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BU95303
●Timing chart
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tl 3 VDIFE
EVEN ODD EVEN ODD EVEN ODD Last Data
tw 144 tSTB-CLK tSTB-CLK INVALID 145 1 2
th
CLKP tsu1 thd1
1
2
3
© 2010 ROHM Co., Ltd. All rights reserved.
VCM tsu1 thd1 tSTB-SFT tdc tdc tWSTB tLDT tsp Hi-Z*1 tdout
1CLK period
-CLKN
DXXP -DXXN
INVALID
0V(DVSS)
tsu2 thd2
SFTR input (SFTL input)
Fig.6 Timing chart
12/14
tWSFT
SFTL output
(SFTR output)
STB
POL
Yout
Technical Note
2010.10 - Rev.A
Share*2 *1: Hi-Z period = tSTB-CLK + tWSTB + 2CLK period *2: share period = tWSTB
BU95303
●Start pulse timing
2CLK period over
Technical Note
CLKP SFTR input (SFTL) DATA 1st Invalid 2nd 1(E) 1(O) 2(E) 2(O)
When the start pulse (SFTR, SFTL) is input two times, the data is sampled based on the second start pulse.
●Power Supply Sequence Maintain the following power supply order to prevent the device from being destroyed. Turn on power order : DVDD → Input signal → AVDD, V0 ~ V13 Turn off power order : AVDD, V0 ~ V13 → Input signal → DVDD
AVDD Voltage V0~V13 DVDD Input signal DVSS, AVSS t
●Notes for use 1. When power is first supplied to the CMOS IC, it is possible that the internal logic may be unstable and rush current may flow instantaneously. Therefore, give special consideration to power coupling capacitance, power wiring, width of GND wiring, and routing of connections. 2. For ICs with more than one power supply, it is possible that rush current may flow instantaneously due to the internal powering sequence and delays. Therefore, give special consideration to power coupling capacitance, power wiring, width of GND wiring, and routing of wiring.
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BU95303
●Ordering part number
Technical Note
B
Part No.
U
9
Part No.
5
3
0
3
-
S
R
Reel packing specification SR: A pattern side is an inner arrow. The output side is the right side. SL: A pattern side is an inner arrow. The output side is the left side. BR: A pattern side is an outside arrow. The output side is the right side. BL: A pattern side is an outside arrow. The output side is the left side.
COF35
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Notice
Notes
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R1010A