LC74799 datasheet(5/32 Pages) SANYO

Part #	LC74799

Description	On-Screen Display Controller IC

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Manufacturer	SANYO [Sanyo Semicon Device]

Direct Link	https://www.sanyo-av.com/us/

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5 / 32 page

No. 5834-5/32

LC74799, 74799M

Continued from preceding page.

Notes: (1): When the sync level = 0.8 V

(2): When the sync level = 1.0 V

(3): When the sync level = 1.4 V

The values in parentheses for the background high and low levels are for blue background mode.

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

CVOUT :VDD1 = 5.0 V,

(1)

1.67

V

Color burst high level

VCBH

VDD2 = 5.0 V

(2)

1.87

V

(3)

2.27

V

CVOUT :VDD1 = 5.0 V,

(1)

1.23 (1.16)

V

Background color low level

VRSH

VDD2 = 5.0 V

(2)

1.43 (1.36)

V

(3)

1.83 (1.76)

V

CVOUT :VDD1 = 5.0 V,

(1)

2.37 (2.01)

V

Background color high level

VRSL

VDD2 = 5.0 V

(2)

2.57 (2.21)

V

(3)

2.97 (2.61)

V

CVOUT :VDD1 = 5.0 V,

(1)

1.50

V

Frame level 0

VBK0

VDD2 = 5.0 V

(2)

1.70

V

(3)

2.10

V

CVOUT :VDD1 = 5.0 V,

(1)

2.08

V

Frame level 1

VBK1

VDD2 = 5.0 V

(2)

2.28

V

(3)

2.68

V

CVOUT :VDD1 = 5.0 V,

(1)

2.65

V

Character level

VCHA

VDD2 = 5.0 V

(2)

2.85

V

(3)

3.25

V

Parameter

Symbol

Conditions

Ratings

Unit

min

typ

max

OSD write (See figure 1.)

Minimum input pulse width

tW (SCLK)

SCLK1

200

ns

tW (CS1)

CS1 (The period when CS1 is high)

1

µs

Data setup time

tSU (CS1)

CS1

200

ns

tSU (SIN)

SIN1

200

ns

Data hold time

th (CS1)

CS1

2

µs

th (SIN)

SIN1

200

ns

One word write time

tword

The 8-bit data write time

4.2

µs

twt

The RAM data write time

1

µs

PDC/VPS write and read (I2C bus timing)

SCL frequency

tSCL

100

kHz

Bus release time

tBUF

4.7

µs

Start hold time

tHD ; STA

4.0

µs

SCL low-level period

tLOW

4.7

µs

SCL high-level period

tHIGH

4.0

µs

Data hold time

tHD ; DAT

0µs

Data setup time

tSU ; DAT

250

ns

Rise time

tR

1000

ns

Fall time

tF

300

ns

Stop setup time

tSU ; STO

4.0

µs

Timing Characteristics at Ta = –30 to +70°C, VDD1 = 5 ±0.5 V

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