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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 PALM 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 Pin Assignment
No. 5755-2/13
LC78011E Pin Functions
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Symbol RYIN3 RYIN2 RYIN1 RYIN0 DVSS CLKI FSCIN DVDD GUIN7 GUIN6 GUIN5 GUIN4 GUIN3 GUIN2 GUIN1 GUIN0 BVIN7 BVIN6 BVIN5 BVIN4 BVIN3 BVIN2 BVIN1 BVIN0 AVDD CROUT BIAS YOUT AVSS CCSEL NPSEL I/O IN IN IN IN -- IN IN -- IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN IN -- OUT OUT OUT -- IN IN Polarity Positive Positive Positive Positive -- -- -- -- Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive Positive -- -- -- -- -- Positive Positive R/Y data input R/Y data input R/Y data input R/Y data input (LSB) Digital system ground 4fsc clock input fsc clock input Digital system power supply G/U data input (MSB) G/U data input G/U data input G/U data input G/U data input G/U data input G/U data input G/U data input (LSB) B/V/UV data input (MSB) B/V/UV data input B/V/UV data input B/V/UV data input B/V/UV data input B/V/UV data input B/V/UV data input B/V/UV data input (LSB) Analog system power supply (For the D/A converters.) (+5 V) Chroma signal/composite video signal output (8-bit D/A converter output) Ripple rejection capacitor connection (Use a 10 F capacitor.) Luminance signal output (8-bit D/A converter output) Analog system ground (For the D/A converters.) D/A converter output control signal input (Low: YC signal output, High: Composite video signal output) Signal format selection input NPSEL 0 32 PMSEL IN Positive 1 0 1 PMSEL 0 0 1 1 D/A converter output signal mode NTSC PAL PAL-M - (Illegal setting) 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. 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. 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. 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. A feedback resistor is built in. A feedback resistor is built in. Function 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.
33 34 35 36 37 38 39
CDGSEL TEST RESET OSBIN OSGIN OSRIN OSBLK
IN IN IN IN IN IN IN
Negative Positive
Video CD/CD-G selection input (Low: CD-G, High: Video-CD) (The input digital data can be selected to be either 4-bit or 8-bit data.) Test mode selection input (This pin must be tied low during normal operation.)
Negative Reset signal input Positive Positive Positive Positive OSD signal (B) input OSD signal (G) input OSD signal (R) input OSD switching signal input (The OSD blanking signal input)
Continued on next page.
No. 5755-3/13
LC78011E
Continued from preceding page.
Pin No. 40 41 42 43 Symbol BLANK CSYNC HSYNC YUVSEL1 I/O IN IN IN IN Polarity Positive Function Composite blanking signal input (HBLANK + VBLANK)
Negative Composite synchronizing signal input (HSYNC + VSYNC) Negative Horizontal synchronizing signal input (HSYNC) Positive Signal input setup YUVSEL1 YUVSEL2 0 0 0 1 1 Video signal input signal mode RYIN = R in, GUIN = G in, BVIN = B in RYIN = Y in, GUIN = U in, BVIN = V in RYIN = Y in, GUIN = none, BVIN = UV in -- (Illegal setting) 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.
44
YUVSEL2
IN
Positive
1 0 1
45 46 47 48
RYIN7 RYIN6 RYIN5 RYIN4
IN IN IN IN
Positive Positive Positive Positive
R/Y data input (MSB) R/Y data input R/Y data input R/Y data input
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 Symbol VDD1 max VDD2 max 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 = 25C Conditions Ratings DVSS - 0.3 to DVSS +7.0 AVSS - 0.3 to AVSS +7.0 Unit V V
Input voltage
VIN
DVSS - 0.3 to DVDD +0.3
V
Output voltage Allowable power dissipation Operating temperature Storage temperature
VOUT Pd max Topr Tstg
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 75C unless otherwise specified
Parameter Symbol VDD1 VDD2 VIH1 Input high-level voltage VIH2 Conditions 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 fIN1 Clock frequency fIN2 FSCIN CLKI PAL PAL-M NTSC PAL PAL-M Ratings min 3.0 4.5 0.7 VDD1 5.0 typ max 5.5 5.5 VDD1 + 0.3 Unit V V V
Supply voltage
2.2
VDD1 + 0.3
V
VIL1 Input low-level voltage VIL2
VSS1 - 0.3
0.3 VDD1
V
VSS1 - 0.3 14.31818 17.734475 14.3024459 3.579545 4.43361875 3.57561149
0.8
V MHz MHz MHz MHz MHz MHz
Continued on next page. No. 5755-4/13
LC78011E
Continued from preceding page.
Parameter Symbol VIN1 VIN2 Fduty1 twrst Conditions CLKI (capacitor coupled) FSCIN (capacitor coupled) CLKI, FSCIN RESET Ratings min 2.0 2.0 40 400 50 typ max VDD1 VDD1 60 Unit Vp-p Vp-p % ns
Input amplitude Clock duty Reset pulse width
Electrical Characteristics at Ta = -20 to 75C, DVDD = 5.0 V, AVDD = 5.0 V unless otherwise specified
Parameter Symbol Conditions OSRIN, OSGIN, OSBIN, OSBLK, BLANK, CSYNC, HSYNC, RESET, CCSEL, NPSEL, PMSEL, CDGSEL, YUVSEL1, YUVSEL2, TEST: VIN = DVDD RYIN0 to RYIN7, GUIN0 to GUIN7, BVIN0 to BVIN7 (Pull-down resistors are built in): VIN = DVDD OSRIN, OSGIN, OSBIN, OSBLK, BLANK, CSYNC, HSYNC, RESET, CCSEL, NPSEL, PMSEL, CDGSEL, YUVSEL1, YUVSEL2, TEST: VIN = DVSS RYIN0 to RYIN7, GUIN0 to GUIN7, BVIN0 to BVIN7 (Pull-down resistors are built in): VIN = DVSS CLKI, FSCIN YOUT, CROUT RDAC VREF YOUT, CROUT YOUT, CROUT (The output voltage when each bit of the 8-bit data is zero) (DVDD = 5.0 V : NTSC) IDD1 DVDD (AVDD = 5.0 V) (DVDD = 5.0 V : PAL) (DVDD = 3.3 V : NTSC) (DVDD = 3.3 V : PAL) Operating current drain AVDD (AVDD = 5.0 V) (DVDD = 5.0 V : When 2 channels are used) (DVDD = 5.0 V : When 1 channel is used) (DVDD = 3.3 V :When 2 channels are used) (DVDD = 3.3 V : When 1 channel is used) 150 2.40 25 50 Ratings min typ max 5 Unit
IIH1 Input high-level current IIH2
A
75
A
IIL1 Input low-level current IIL2 Internal feedback resistance D/A converter resolution D/A converter output resistance D/A converter reference voltage RBIAS
-5
A
-5 1 8 bits 300 2.45 37 45 15 18 21 12 22 13 500 2.50 56 68 23 27 37 21 39 23
A M V mA mA mA mA mA mA mA mA
IDD2
Timing Characteristics at Ta = 25C, DVDD = 5.0 V, AVDD = 5.0 V, tr = tf = 3 ns unless otherwise specified
Parameter Symbol Conditions RYIN0 to 7, GUIN0 to 7, BVIN0 to 7 CLKI BLANK, CSYNC, HSYNC CLKI OSRIN, OSGIN, OSBIN, OSBLK CLKI FSCIN CLKI : DVDD = 5.0 V : DVDD = 3.3 V CLKI RYIN0 to 7, GUIN0 to 7, BVIN0 to 7 CLKI BLANK, CSYNC, HSYNC CLK OSRIN, OSGIN, OSBIN, OSBLK CLKI FSCIN : DVDD = 5.0 V : DVDD = 3.3 V CLKI (For a square wave input) CLKI (For a square wave input) CLKI, FSCIN (For a sine wave input) Ratings min typ max Unit
Data setup time
tDS
0 0
ns ns
Data hold time
tDH
10 12 18 18 40 60
ns ns ns ns %
Minimum clock pulse width Input clock duty
tWL tWH tduty
No. 5755-5/13
LC78011E Timing Charts Data Input
Synchronizing Signal Input
Subcarrier Input
OSD Input
No. 5755-6/13
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
LC78011E Luminance Signal Output (Y)
Digital value (8 bits)
Sync tip
Burst
White Yellow Cyan Green Magenta Red Blue Black Frame Character Frame Black
No. 5755-8/13
LC78011E Chroma Signal (C) Output
Digital value (8 bits)
Burst
White Yellow Cyan Green Magenta Red Blue Black
Note: The value in parentheses is the burst amplitude for PAL and PAL-M modes.
No. 5755-9/13
System Block Diagram
YUV to RGB converter
OSD signal insertion circuit Matrix circuit Luminance signal (Y) processing circuit
(Luminance signal output)
LC78011E
Chroma signal (C) processing circuit
(Chroma signal or composite video signal output)
Buffer circuit
System clock
Burst signal generator Timing generator
No. 5755-10/13
LC78011E Functional Description 1. Clocks The system clock operates at 4fsc and is input to the CLKI pin (pin 6). A feedback (bias) resistor is built in. Input clock frequencies: NTSC mode: 14.31818 MHz PAL mode: 17.734475 MHz PAL-M mode: 14.30244596 MHz 2. Video signal output formats The LC78011E can provide either a Y/C (luminance signal/chrominance signal) separated signal output or a composite video signal output. The CCSEL pin (pin 30) selects the output format.
CCSEL (pin 30) setting CROUT (pin 26) output YOUT (pin 28) output High = 1 Composite video signal Fixed low-level output (The D/A converter is stopped.) Low = 0 Chroma signal (C) Luminance signal (Y)
3. Digital video input switching The LC78011E supports both input from an MPEG decoder (24 bits, 8 bits each of R, G, and B data) and a 12-bit CD-G input (4 bits each of R, G, and B data). The CDGSEL pin (pin 33) switches the input.
CDGSEL (pin 33) Digital input selection Low = 0 12-bit input (CD-G) High = 1 24-bit input (Video CD)
* Sample CD-G (LC7874E) connection
LC78011E RYIN7 (pin 45) RYIN6 (pin 46) RYIN5 (pin 47) RYIN4 (pin 48) GUIN7 (pin 9) GUIN6 (pin 10) GUIN5 (pin 11) GUIN4 (pin 12) BVIN7 (pin 17) BVIN6 (pin 18) BVIN5 (pin 19) BVIN4 (pin 20) LC7874E ROUT3 (pin 36) ROUT2 (pin 37) ROUT1 (pin 38) ROUT0 (pin 39) GOUT3 (pin 42) GOUT2 (pin 43) GOUT1 (pin 44) GOUT0 (pin 45) BOUT3 (pin 46) BOUT2 (pin 47) BOUT1 (pin 48) BOUT0 (pin 49)
R
G
B
4. Digital video input format selection The LC78011E supports both RGB and YUV formats. The YUVSEL1 and YUVSEL2 pins (pins 43 and 44) are used to select the input video format.
YUVSEL2 (pin 44) Low = 0 Low = 0 High = 1 High = 1 YUVSEL1 (pin 43) Low = 0 High = 1 Low = 0 High = 1 Input format RGB input YUV input Y/UV input* Illegal value
Note :* GUIN0 to GUIN7 are not used in the Y/UV input mode. The U/V discrimination for the UV input is performed by starting acquisition of the U input data with a timing referenced to the falling edge of the BLANK pin (pin 40) input signal. In this mode, the input pins GUIN0 to GUIN7 must be left open or tied to DVSS. (These inputs include built-in pull-down resistors.)
No. 5755-11/13
LC78011E * Data input timing RGB input (24 bits)
YCbCr (YUV) input (24 bits)
Y (8 bits), CbCr (8 bits) multiplexed input
5. OSD input (on-screen display data input) The LC78011E provides an OSD signal RGB input function. Four input signals are required: the 3 bits of R, G, and B data and the BLANK pin input signal, which is used for OSD switching.
R (OSRIN: pin 38) L=0 L=0 H=1 L=0 L=0 H=1 H=1 L=0 H=1 G (OSGIN: pin 37) L=0 L=0 L=0 H=1 L=0 L=0 H=1 H=1 H=1 B (OSBIN: pin 36) L=0 L=0 L=0 L=0 H=1 H=1 L=0 H=1 H=1 OSBLK (pin 39) L=0 H=1 H=1 H=1 H=1 H=1 H=1 H=1 H=1 OSD display color Display off Black Red Green Blue Magenta Yellow Cyan White
Note: The white luminance level is 162, and the black and framing luminance level is 66. (When converted from the As 8-bit data values.)
* OSD timing When no framing is used
When a frame is used (Frame color: black)
Character
Frame Character Frame
6. Signal format switching (NTSC, PAL, or PAL-M) The NPSEL and PMSEL pin (pin 31 and 32) are used to switch the signal format.
NPSEL (pin 31) L=0 H=1 L=0 H=1 PMSEL (pin 32) L=0 L=0 H=1 H=1 Signal format NTSC PAL PAL-M Illegal value
No. 5755-12/13
LC78011E
s No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. s Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. s Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of March, 1998. Specifications and information herein are subject to change without notice. PS No. 5755-13/13

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