LH1687 데이터 시트보기 (PDF) - Sharp Electronics

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LH1687

240-output TFT-LCD Source Driver IC

Sharp Electronics 

LH1687

AC Characteristics

(Unless otherwise specified, GNDL = GNDA = 0 V, VCCL = +3.3 V, VCCA = +5.0 V, TOPR = –30 to +85 ˚C)

PARAMETER SYMBOL CONDITIONS APPLICABLE PINS MIN. TYP. MAX. UNIT NOTE

Clock frequency

SAM = "H"

fCK

SAM = "L"

12.5 MHz

7.0 MHz

SAM = "H"

30.0

ns

"H" level clock width tWHC

CK

SAM = "L"

50.0

ns

"L" level clock width tWLC

SAM = "H"

SAM = "L"

30.0

ns

50.0

ns

Input rise time

Input fall time

SAM = "H"

tRC

SAM = "L"

SAM = "H"

tFC

SAM = "L"

SPIO, SPOI, CK

10.0 ns

20.0 ns

10.0 ns

20.0 ns

Start pulse width

tWSP

Start pulse setup time

Start pulse hold time

Start pulse output

delay time

tSUSP

tHSP

tDSP

CL = 15 pF

1

SPIO, SPOI

--------

fCK

10.0

15.0

SPIO, SPOI, CK

ns

ns

ns

20.0 ns

PS signal setup time tSUPS

CTR signal setup

time

Output transfer delay time

Output rise time

Output fall time

Power save delay time

tSUCTR

tDO

tR

tF

tDOP

1

PS

--------

2fCK

1

CTR

--------

2fCK

OS1-OS240

µs

µs

5.0 µs

5.0 µs

1

5.0 µs

3.0 µs

Power save rise time tROP

5.0 µs

2

Power save fall time tFOP

5.0 µs

NOTES :

1. Start signal :

Cycle tSP = 63.5 µs, "H" period width tWSP = 80 ns.

CTR signal :

Cycle tCTR = 127.0 µs, "H" period width tWCTR = 63.5 µs.

Change from "H" to "L" or "L" to "H" is synchronized with

start pulse during blanking period.

CK signal :

Frequency fCK = 12.5 MHz (duty = 50%)

Connect VA, VB, and VC pins to VCCA.

Connect all other pins to VCCL.

Capacity of output load CL = 150 pF

2. Add load resistor (10 k$) to NOTE 1.

Load resistor is connected to GNDA or VCCA level as

follows.

Output Pin

10 k$

GNDA

150 pF

Output Pin

VCCA

10 k$

GNDA

150 pF

20

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