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Ordering number : EN5755

CMOS IC

LC78011E

Digital RGB Encoder IC for Video CD and CD-G

Overview

The LC78011E is a CMOS IC that integrates a digital

RGB encoder and a synchronizing signal generation

circuit on a single chip. A video CD or CD-G system can

be formed using the LC78011E together with an MPEG

video decoder or a CD-G decoder, respectively.

Features

• System structure

— Each system (Video CD or CD-G system) formed

with an additional chip: MPEG decoder or CD-G

decoder chip.

• Video outputs

— 8-bit D/A converter outputs: 2 channels

— The LC78011E supports the following two video

signal output formats:

Luminance signal (Y) and chroma signal (C) outputs

Composite video signal (C • VIDEO) output (Only

one D/A converter channel operates in this mode.)

• System clock

— External 4fsc clock

NTSC mode: 14.31818 MHz

PAL mode: 17.734475 MHz

PAL-M mode: 14.30244596 MHz

• External subcarrier input

— An external fsc clock is input and used for subcarrier

synchronization timing.

• Video data input

— The LC78011E supports the following four input

formats:

R, G, and B: 8 bits each

Y, U, and V: 8 bits each

Y and UV: 8 bits each (The UV input is a

multiplexed input)

R, G, and B: 4 bits each (In CD-G input support

mode)

• OSD input support

— R, G, and B + BLK 4-bit inputs (color support)

(BLK is an OSD display switching timing signal.)

• External synchronizing signal input

— Horizontal synchronizing signal, composite

synchronizing signal, and composite blanking signal

inputs: HSYNC, CSYNC, and BLANK.

• Video signal formats

— The LC78011E supports the NTSC, PAL, and PAL-

M formats.

Package Dimensions

unit: mm

3156-QIP48E

[LC78011E]

SANYO: QIP48E

SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters

TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN

33198RM (OT) No. 5755-1/13

LC78011E

Continued from preceding page.

Pin No.

40

41

42

43

Symbol

BLANK

CSYNC

HSYNC

YUVSEL1

44 YUVSEL2

I/O Polarity

Function

IN Positive Composite blanking signal input (HBLANK + VBLANK)

IN Negative Composite synchronizing signal input (HSYNC + VSYNC)

IN Negative Horizontal synchronizing signal input (HSYNC)

IN Positive Signal input setup

YUVSEL1 YUVSEL2

Video signal input signal mode

0 0 RYIN = R in, GUIN = G in, BVIN = B in

IN Positive

1 0 RYIN = Y in, GUIN = U in, BVIN = V in

0 1 RYIN = Y in, GUIN = none, BVIN = UV in

11

— (Illegal setting)

45 RYIN7 IN Positive R/Y data input (MSB)

46 RYIN6 IN Positive R/Y data input

47 RYIN5 IN Positive R/Y data input

48 RYIN4 IN Positive R/Y data input

A pull-down resistor is built in.

A pull-down resistor is built in.

A pull-down resistor is built in.

A pull-down resistor is built in.

Notes:1. The voltage applied as the digital system power supply voltage must not exceed the voltage applied as the analog system power supply voltage.

2. Unused input pins must be tied high or low. If the OSD inputs are not used, tie OSBLK (pin 39) low.

3. Note that the clock input frequencies (CLKI: pin 6, and FSCIN: pin 7) depend on the TV subcarrier pull-in range. The CLKI input clock and the

FSCIN clock must be synchronized.

Specifications

Absolute Maximum Ratings

Parameter

Maximum supply voltage

Input voltage

Output voltage

Allowable power dissipation

Operating temperature

Storage temperature

Symbol

VDD1 max

VDD2 max

VIN

VOUT

Pd max

Topr

Tstg

Conditions

DVDD (DVDD ≤ AVDD)

AVDD

RYIN0 to RYIN7, GUIN0 to GUIN7,

BVIN0 to BVIN7, CLKI, FSCIN,

OSRIN, OSGIN, OSBIN, OSBLK,

BLANK, CSYNC, HSYNC, RESET,

CCSEL, NPSEL, PMSEL, CDGSEL,

YUVSEL1, YUVSEL2, and TEST

CROUT, YOUT, and BIAS

Ta = 25°C

Ratings

DVSS – 0.3 to DVSS +7.0

AVSS – 0.3 to AVSS +7.0

Unit

V

V

DVSS – 0.3 to DVDD +0.3

V

DVSS – 0.3 to DVDD +0.3

500

–20 to +75

–40 to +125

V

mW

°C

°C

Allowable Operating Ranges at Ta = –20 to 75°C unless otherwise specified

Parameter

Supply voltage

Input high-level voltage

Input low-level voltage

Clock frequency

Symbol

Conditions

VDD1

VDD2

VIH1

VIH2

VIL1

VIL2

fIN1

fIN2

DVDD (DVDD ≤ AVDD)

AVDD

OSRIN, OSGIN, OSBIN, OSBLK

CCSEL, NPSEL, PMSEL, CDGSEL,

YUVSEL1, YUVSEL2, TEST

RYIN0 to RYIN7, GUIN0 to GUIN7,

BVIN0 to BVIN7, BLANK, CSYNC

HSYNC, RESET

OSRIN, OSGIN, OSBIN, OSBLK

CCSEL, NPSEL, PMSEL, CDGSEL,

YUVSEL1, YUVSEL2, TEST

RYIN0 to RYIN7, GUIN0 to GUIN7,

BVIN0 to BVIN7, BLANK, CSYNC

HSYNC, RESET

NTSC

CLKI

PAL

PAL-M

NTSC

FSCIN

PAL

PAL-M

min

3.0

4.5

Ratings

typ

5.0

max

5.5

5.5

Unit

V

V

0.7 VDD1

VDD1 + 0.3 V

2.2 VDD1 + 0.3 V

VSS1 – 0.3

0.3 VDD1 V

VSS1 – 0.3

0.8 V

14.31818

17.734475

14.3024459

3.579545

4.43361875

3.57561149

MHz

MHz

MHz

MHz

MHz

MHz

Continued on next page.

No. 5755-4/13

LC78011E

Composite Video Signal (C • VIDEO) Output

Digital value (8 bits)

Sync tip

Burst

White Yellow Cyan Green Magenta Red Blue Black Frame Character Frame Black

Note: The value in parentheses is the burst amplitude for PAL and PAL-M modes.

No. 5755-7/13

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