E2F0026-29-63 ¡ Semiconductor MSM7653 ¡ Semiconductor This version: Jun. 1999 MSM7653 Previous version: Jun. 1998 NTSC/PAL Digital Video Encoder GENERAL DESCRIPTION The MSM7653 is a digital NTSC/PAL encoder. By inputting digital image data conforming to ITU Rec. 656 or ITURBT 601, it outputs selected analog composite video signals, analog S video signals. For the scanning system, interlaced or noninterlaced mode can be selected. Since the MSM7653 is provided with pins dedicated to overlay function, text and graphics can be superimposed on a video signal. In addition, this encoder has an internal 10-bit DAC. So, when compared with using a conventional analog encoder, the number of components, the board space, and points of adjustment can greatly be reduced, thereby realizing a low cost and high-accuracy system. The MSM7653 provides the optional functions such as Macrovision Rev. 7.01 (note 1) (note 2) and Closed Caption Signal Generation Function. The host interface provided conforms to Philips's I2C specifications, which reduces interconnections between this encoder and mounting components. The internal synchronization signal generator (SSG) allows the MSM7653 to operate in master mode. FEATURES • Video signal system: NTSC/PAL • Scanning system: interlaced/noninterlaced (NTSC : 262 lines/PAL : 312 lines) • Input digital level: conforms to ITU-R601 (CCIR601) • Input-output timing: conforms to ITU Rec. 656 or ITURBT 624-4 • Input signal sampling ratio : Y:Cb:Cr = 4:2:2 • Supported input formats · ITU Rec. 656 · YCbCr 27 MHz format (8-bit input) · ITU-R601 13.5 MHz (8-bit (Y) + 8-bit (CbCr) input) • Sampling frequency : 27 MHz • Internal SSG circuit (Can operate as a master in other operation modes than CCIR Rec. 656 mode) • Internal 3ch 10-bit DAC • 3-bit title graphics can be displayed • Color bar function • I2C-bus host interface function • 3.3 V single power supply (each I/O pin is 5 V tolerable) • Closed caption function • Macrovision Rev. 7.01 • Package 56-pin plastic QFP (QFP56-P-910-0.65-2K) (Product name: MSM7653GS-2K) 1/35 ¡ Semiconductor MSM7653 APPLICATIONS • Set top box • DVD • Digital VTR (Note 1) This device is protected by U.S. Patent numbers 4631603, 4577216 and 4819098 and other intellectual property rights. The use of Macrovision Corporation's copy protection technology in the device must be authorized by Macrovision and is intended for home and other limited pay-per-view uses only, unless otherwise authorized in writing by Macrovision. Reverse engineering or disassembly is prohibited. (Note 2) This data sheet does not describe the register setting method of implementing Macrovision Corporation's anticopy function that this device provides. Refer to MACROVISION ANTICOPY FUNCTION SETTING MANUAL for the anticopy function. 2/35 OLC OLR OLG OLB YUV color Generator Y Level converter YD[7:0] CD[7:0] U Level converter Prologue Block Black & Blank Pedestal Overlay Control VSYNC_L HSYNC_L BLANK_L CLKX2 DAC YA DAC CVBSO DAC CA Interpolator + LPF Interpolator + LPF V Level converter Anticopy Function Block IPF IPF Color Burst Generator Closed Caption Block Subcarrier Generator IPF VREF IPF = Interpolation Filter Sync Generator & Timing Controller ¡ Semiconductor BLOCK DIAGRAM RESET_L 2 I C Control logic FS Test Control logic COMP SEL[2:1] MS MODE CLKX1O CLKSEL SCL SDA ADRS TENB TEST1 OUTSEL MSM7653 3/35 ¡ Semiconductor MSM7653 43 DGND 44 TEST1 45 TENB 46 VREF 47 FS 48 COMP 49 AGND 50 CA 51 AVDD 52 CVBSO 53 AGND 54 YA 55 AVDD 56 DGND PIN CONFIGURATION (TOP VIEW) DVDD 1 42 DVDD MS 2 41 SEL2 SDA 3 40 SEL1 SCL 4 39 CLKSEL ADRS 5 38 CD0 RESET_L 6 37 CD1 MODE 7 36 CD2 OLC 8 35 CD3 OLR 9 34 CD4 OLG 10 33 CD5 OLB 11 32 CD6 CLKX1O 12 31 CD7 OUTSEL 13 30 CLKX2 DGND 28 YD0 27 YD1 26 YD2 25 YD3 24 YD4 23 YD5 22 NC 21 YD6 20 YD7 19 BLANK_L 18 HSYNC_L 17 VSYNC_L 16 29 DVDD DGND 15 DVDD 14 NC : No-connection pin 56-Pin Plastic QFP 4/35 ¡ Semiconductor MSM7653 PIN DESCRIPTIONS (1/2) Pin I/O 1 Symbol DVDD Description 3.3 V digital power supply 2 I MS Selects between Master and Slave at 27 MHz or 13.5 MHz YCbCr operation. Pulled down 3 I/O SDA I2C interface data bus 4 I SCL I2C interface clock bus 5 I ADRS 6 I RESET_L 7 I MODE 8 I OLC Transparent control signal. "1" indicates overlay signal. Normally fixed to "0". 9 I OLR Overlay text color (Red component). Normally fixed to "0". 10 I OLG Overlay text color (Green component). Normally fixed to "0". I2C-bus Slave address setting pin ("0" : 1001100 / "1" : 1001110). Pulled down System reset signal. Negative porality Broadcasting mode select pin. "0" : NTSC/"1" : PAL. Pulled down Overlay text color (Blue component). Normally fixed to "0". 11 I OLB 12 O CLKX1O 13.5 MHz divided clock output signal 13 I OUTSEL Normally fixed to "0". Pulled down 14 DVDD 3.3 V digital power supply 15 DGND Digital GND 16 I/O VSYNC_L 17 I/O HSYNC_L 18 I BLANK_L Vertical sync signal input/output pin (ITU656: O, YCbCr: I/O) Negative polarity Horizontal signal input/output pin (ITU656 : O, YCbCr: I/O) Negative polarity Composite blank signal. Negative polarity. See the description on page 15 for the operating requirement. MSB 2 bits of 8-bit digital image data input pins (for ITU656 and YCbCr 27 MHz). Level conforms to ITU-601. 19, 20 I YD7 to YD6 MSB 2 bits of 8-bit digital image luminance signal input pins (for YCbCr). Level conforms to ITU-601. YD7 is MSB. 21 NC Not connected LSB 6 bits of 8-bit digital image data input pins (for ITU656 and YCbCr 27 MHz). Level conforms to ITU-601. 22 to 27 I YD5 to YD0 LSB 6 bits of 8-bit digital image luminance signal input pins (for YCbCr). Level conforms to ITU-601. YD0 is LSB. 28 DGND Digital GND 29 DVDD 3.3 V digital power supply Clock input pin (27 MHz) 30 I CLKX2 31 to 38 I/O CD7 to CD0 39 I CLKSEL 8bit digital image chrominance signal data input pins (13.5 MHz mode). Level conforms to ITU-601. Fixed to "0" for ITU Rec. 656, 27 MHz-YCbCr mode. Operation mode select pin. "0" : 27 MHz mode / "1" : 13.5 MHz mode. 5/35 ¡ Semiconductor MSM7653 PIN DESCRIPTIONS (2/2) Pin I/O Symbol Description 40 I SEL1 41 I SEL2 Interface select pin. ITU656 : "0", YCbCr 27 MHz : "1" (See Page 32 for details) Pulled down 42 DVDD 3.3 V digital power supply 43 DGND Digital GND Enable pin. Normally fixed to "0". Sleep mode "1" with TEST1 = "0" (See Page 32 for details) 44 I TEST1 Input pin1 for testing. Normally fixed to "0". (See Page 32 for details) Pulled down 45 I TENB Input pin2 for testing. Normally fixed to "0". Pulled down 46 I/O VREF Reference voltage for DAC 47 I FS 48 I COMP 49 50 AGND Analog GND CA O CVBSO Analog composite signal output pin. AGND Analog GND AVDD 53 54 DAC phase complement pin. O 51 52 DAC full scale adjustment pin. O YA Analog color chrominance signal output pin. 3.3 V analog power supply Analog luminance signal output pin. 55 AVDD 3.3 V analog power supply 56 DGND Digital GND 6/35 ¡ Semiconductor MSM7653 ABSOLUTE MAXIMUM RATINGS Parameter Symbol Condition Rating DVDD — –0.3 to +4.5 AVDD — –0.3 to +4.5 Input Voltage VI DVDD = 3.3 V –0.3 to +5.5 V Analog Output Current IO — 50 mA Power Consumption PW — 600 mW Storage Temperature TSTG — –55 to +150 °C Power Supply Voltage Unit V RECOMMENDED OPERATING CONDITIONS Symbol Condition Min. Typ. Max. DVDD — 3.0 3.3 3.6 AVDD — 3.0 3.3 3.6 "H" Level Input Voltage VIH — — V VIL — — 2.2 "L" Level Input Voltage — — 0.8 V Operating Temperature 1 Ta1 DVDD = AVDD = 3.3 V 0 25 70 ˚C 0 25 65 ˚C — 1.25 — V Parameter Power Supply Voltage (*1) Operating Temperature 2 Ta2 DVDD = AVDD = 3.3 V DA output load = 37.5 W DVDD = AVDD = 3.3 V, Unit V External Reference Voltage Vrefex DA Current Setting Resistance Riadj (*2) — 385 — W RL (*3) — 75 — W DA Output Load Resistance (*1) (*2) (*3) Ta = 25˚C Supply an equal voltage to both DVDD and AVDD. A volume control resistor of approx. 500 W is recommendable for adjusting the output current. When a DA converter analog output is terminated with a 37.5 W load, Riadj = approx. 192 W. Indicates the value when Riadj = 385 W (typical value). 7/35 ¡ Semiconductor MSM7653 ELECTRICAL CHARACTERISTICS DC Characteristics (Ta = 0 to 70°C, DVDD = 3.3 V ±0.3 V, AVDD = 3.3 V ±0.3 V) Parameter "H" Level Output Voltage "L" Level Output Voltage Symbol Condition Min. Typ. Max. Unit VOH IOH = –4 mA (*1) 0.7VDD — — V — — 0.4 V VOL IOL = 4 mA (*1) IOL = 6 mA (*2) Input Leakage Current II VI = GND to DVDD –10 — +10 mA Output Leakage Current IO VI = GND to DVDD (*3) –10 — +10 mA — — 120 140 mA — 60 65 mA mA Power Supply Current (operating) IDDO RESET_L = "L" Power Supply Current (standby) IDDS Power Supply Current (Sleep mode) IDDSM SEL2 = "H" 0.03 0.05 0.5 I2C-bus CLKX2 = 0 MHz SDA Output Voltage SDAVL Low level, IOL = 3 mA 0 — 0.4 V I2C-bus SDA Output Current SDAIO During Acknowledge 3 — — mA Internal Reference Voltage Vrefin — — 1.25 — DA Output Load Resistance RL — V W 75 Integral Linearity SINL — ±2 LSB Differential Linearity SDNL — ±1 LSB (*1) (*2) (*3) VSYNC_L, HSYNC_L, CD[7:0] CLKX1O SDA AC Characteristics (Ta = 0 to 70°C, DVDD = 3.3 V ±0.3 V, AVDD = 3.3 V ±0.3 V) Parameter Symbol Condition Min. CLKX2 Cycle Time TS — — 37.0 — ns Input Data Setup Time ts1 — 7 — — ns Input Data Hold Time th1 — 5 — — ns Output Delay Time td1 — 5 — 25 ns Unit 5 — 25 ns I2C-bus Clock Cycle Time tC_SCL Rpull_up = 4.7 kW 200 — — ns I2C-bus High Level Cycle tH_SCL Rpull_up = 4.7 kW 100 — — ns I2C-bus Low Level Cycle tL_SCL Rpull_up = 4.7 kW 100 — — ns CLKX1O Delay Time td2 — Typ. Max. 8/35 ¡ Semiconductor INPUT/OUTPUT TIMING , MSM7653 Input timing TS CLKX2 ts1 HSYNC_L, VSYNC_L, BLANK_L, YD, CD, MS, MODE, OLR, OLG, OLB, OLC Invalid data th1 Output timing HSYNC_L, VSYNC_L td1 CLKX1O valid data td2 I2C-bus Interface Input/Output Timing The following figure shows I2C-bus basic input/output timing. SDA SCL MSB S 1 2 7 Start Condition Data Line Stable: Data Valid Change of Data Allowed 8 9 ACK tC_SCL 1 2 3-8 tL_SCL 9 ACK P Stop Condition tH_SCL I2C-bus Basic Input/Output Timing 9/35 ¡ Semiconductor MSM7653 BLOCK FUNCTIONAL DESCRIPTION 1. Prologue Block This block separates input data at the ITU Rec.656 format into a luminance signal (Y) and a chrominance signal (Cb & Cr), and also generates information/concerning sync signals HSYNC_L, VSYNC_L, and BLANK_L. This block separates input data at the 27 MHz YCbCr (8-bit input) format into a luminance signal (Y) and a chrominance signal (Cb & Cr). This block separates input data at the 13.5 MHz YCbCr (16-bit input) format into a chrominance signal Cb and a chrominance signal Cr. Of the processed input data, luminance and chrominance signals other than valid pixel data are replaced by 8'h10 and 8'h80 respectively. 2. Y Limiter Block This block limits the luminance input signal by clipping the lower limit of an input signal outside the ITU601 Standard • Signals are limited to YD = 16 when YD < 16. • Signals are limited to TD = 254 when YD (input during a valid pixel period) = 255. In other cases, signals are fed as is to next processing. 3. C Limiter Block This block limits the chrominance signal by clipping the upper and lower limits of the input signal outside the ITU601 Standard. CD = 1 when CD = 0 is input during a valid pixel period. CD = 254 when CD = 255 is input during a valid pixel period. • Y Level Converter Converts ITU-601 standard luminance signal level to DAC digital input level. • U Level Converter Converts ITU-601 standard chrominance signal level to DAC digital input level. • V Level Converter Converts ITU-601 standard chrominance signal level to DAC digital input level. • YUV Color Generator This block generates luminance and chrominance signals from over lay color signals OLR, OLG and OLB. Control signals (CR [2:0] ) control the output content (overlay or color bar) and output level (100%, 75%, 50%, 25%). • Overlay Control This block selects input image data or YUV Color Generator output signals. It is determined by the level of the control signal (OLC, CR [2]), as shown below: (x : don't care) CR [2] = 1, OLC = x: Selects color bar signal (YUV Color Generator output signal). CR [2] = 0, OLC = 1: Selects overlay signal (YUV Color Generator output signal). CR [2] = 0, OLC = 0: Selects input image data. 10/35 ¡ Semiconductor MSM7653 • Black & Blank Pedestal This block adds sync signals at the luminance side to luminance signals. • Interpolator + LPF This block executes data interpolation and the elimination of high frequency components by LPF for input chrominance signals. • I2C Control Logic This is the serial interface block based on I2C standard of Phillips Corporation. Internal registers MR and CR can be set from the master side. When writing to the internal registers other than MR [2] (black level control) and CR [1:0] (overlay level), written contents are immediately set to them. It is during the vertical blanking period that written contents are set to MR [2] and CR [1:0]. • Sync Generator & Timing Controller This block generates sync signals and control signals. This block operates in slave mode, which performs external synchronization, and in master mode, which internally generates sync signals. • Color Burst Generator Outputs U and V components of amplitude of burst signals. • Subcarrier Generator Executes color subcarrier generation. • Interpolation Filter (IPF) This block performs upsampling at CLKX2 (double speed CLKX1) for luminance signals and chrominance signals modulated with CLKX1. Interpolation processing is executed in this process. • Closed Caption Block This block generates the signal for closed caption. • Anticopy Function Block This block generates a macrovision anticopy signal. 11/35 ¡ Semiconductor MSM7653 INPUT DATA FORMAT The signal level specified by the ITU601 is input. When other signal levels than specified by the ITU601 are input, the luminance signal level is clipped to 16 to 254 and the chrominance signal level to 1 to 254. For chrominance signal input, the offset binary and 2's complement formats are available by setting of internal registers. Digital Level Digital Level 100% White level 235 240(112) 128(0) Black Level 16 16(–112) Y data C data Input luminance signal level Input chrominance signal level Basic Pixel Sampling Ratio 4:2:2 is supported. CLKX1 YD Y1 Y2 Y3 Y4 Y5 Y6 CD Cb1 Cr1 Cb3 Cr3 Cb5 Cr5 4:2:2 sampling at 8bit Y/8bit CbCr input 12/35 ¡ Semiconductor MSM7653 INPUT TIMING (ITUR656 input) The input data is fed in the encoder at the rising edge of a clock pulse. CLKX2 DATA SAV(1st) SAV(2nd) SAV(3rd) SAV(4th) Cb0 Y00 Cr0 Y01 Cb1 Y10 Cr1 Y11 EAV(1st) EAV(2nd) EAV(3rd) EAV(4th) CLKX1O OLR, OLG, OLB, OLC don't care don't care VALID DATA Input Timing RELATIONSHIP BETWEEN BLANK SIGNAL AND INPUT IMAGE DATA The blank signal is generated by the ITU Rec.656 standard input data. The input image data is valid when the blank signal is "H". 13/35 ¡ Semiconductor MSM7653 VALID DATA RANGE According to the ITU Rec.656 standard, the pixel data immediately from SAV (4th word) to a fixed value before EVA is valid. The following figure shows the relationship between the input data at the CCIR Rec.656 format and the sync, luminance, chrominance signals which are processed inside the encoder. Note) The values in parenthesis indicate values in PAL mode. 1716Tclkx2 (NTSC)/1728clkx2 (PAL) ITU Rec.656 standard input data 4Tclkx2 11Tclkx1 (4Tclkx1) Cb0, Y00, Cr0, Y01, Cb1, Y10, Cr1, Y11.... EAV EAV SAV 1440T (NTSC/PAL) 4Tclkx2 Sync signal VSYNC_L (0H) generated by input signal Sync signal VSYNC_L (1/2) generated by input signal 63Tclkx1 (63Tclkx1) <Normal> 67Tclkx1 (67Tclkx1) <Colorstripe> 1/2H 4Tclkx1 (4Tclkx1) Sync signal HSYNC_L generated by input data 9Tclkx1 (16Tclkx1) 127Tclkx1 (142Tclkx1) 711Tclkx1 (702Tclkx1) 20Tclkx1 (20Tclkx1) 711Tclkx1 (702Tclkx1) 20Tclkx1 (20Tclkx1) 136Tclkx1 (146Tclkx1) Sync signal BLANK_L generated by input data 127Tclkx1 (142Tclkx1) BLANK_L internally generated to assure the horizontal and vertical periods Luminance signal separated from input data 8'h10 Y00 Y01 Y10 Y11 8'h10 Chrominance signal separated from input data 8'h80 Cb0 Cr0 Cb1 Cr1 8'h80 1H Composite signal Relationship between input data and sync signal, luminance signal, chrominance signals 14/35 ¡ Semiconductor MSM7653 CLOCK TIMING2 (8bit Y/8bit CbCr input) Input Data Timing Input data and sync signals are fed into the encoder at the rising edge of CLKX2. Input data is handled as valid pixel data when tSTART passes after the falling edge of HSYNC_L. Chrominance signal of input data at this time is regarded as Cb. ACTIVE VIDEO LINE tACT tSTART CLKX2 HSYNC_L YD, CD, OLR, OLB, OLG, OLC ts1 th1 don't care don't care VALID DATA BLANK_L Video data input timing Input data is recognized as valid pixel data when input signal BLANK_L is "H" in the tACT period. When BLANK_L is "H" during the blanking period, however, input data is not output as valid pixel data since processing to maintain blanking period is internally in-progress. The values of tSTART differ slightly between in master mode and in slave mode. The values of tSTART are as follows. In YCbCr format input mode, the values of tSTART are the same, in 8 bit (Y) + 8 bit (CbCr) mode or in 8 bit (YCbCr) mode. In master mode Operation mode In slave mode tSTA(Ts) Operation mode tSTA(Ts) ITU 601 NTSC 250 ITU 601 NTSC 260 ITU 601 PAL 280 ITU 601 PAL 290 tSTA – tS1 = tSTART 15/35 ¡ Semiconductor MSM7653 Timing of Input Data to HSYNC_L CLKX2 CLKX1O HSYNC_L OLR,OLG, OLB, OLC Invalid Data YD Invalid Data Invalid Data Invalid Data Cb0 Valid Data Y00 Cr0 tSTART Y01 Cb1 Y10 Cr0 Y01 Cb1 tACT Input Timing when BLANK_L is Input CLKX2 BLANK_L YD Cb0 Y00 Input timing at 27 MHz in YCbCr format Timing of Input Data to HSYNC_L CLKX2 CLKX1O HSYNC_L OLR,OLG, OLB, OLC Invalid Data YD Invalid Data Invalid Data Y0 Y1 Y2 CD Invalid Data Invalid Data Cb0 Cr0 Cb1 Invalid Data Valid Data tACT tSTART Input Timing when BLANK_L is Input CLKX2 BLANK_L YD Y0 Y1 Y2 CD Cb0 Cr0 Cb1 Input timing at 13.5 MHz in YCbCr format 16/35 ¡ Semiconductor MSM7653 Internal Synchronization Output Timing Output timing of HSYNC_L and VSYNC_L in master mode is as follows. CLKX2 td1 td1 HSYNC_L VSYNC_L Output timing of internal synchronization, HSYNC_L and VSYNC_L VSYNC_L YA 523 524 525 1 2 3 4 5 6 7 17 18 Output timing of internal synchronization VSYNC_L 17/35 ¡ Semiconductor MSM7653 OUTPUT FORMAT The timing conforms to the ITU624 standard. In the NTSC operation mode, the existence/non-existence of setup level is selected by setting of internal regsiters. Data level on the DAC input terminal: When the contents of 100% luminance order color bar are input into the encoder, the input level is as follows. DAC data Lumi (IRE) Composite Wave Form (NTSC) Yellow White 957 133 775 100 715 89 610 70 549 59 450 41 390 338 285 266 224 30 20 11 7.5 0 114 –20 4 –40 Green Cyan Red Magenta Black Blue NTSC Composite Signal (Setup 7.5) 18/35 ¡ Semiconductor DAC data Lumi (IRE) MSM7653 Y Wave Form (NTSC) White 775 100 715 89 610 70 549 59 450 41 390 30 285 11 224 0 4 –40 Cyan Yellow Magenta Green Blue Red Black NTSC Y Signal Output (Setup 0) DAC data Lumi (IRE) C Wave Form (NTSC) Yellow Green Cyan 858 836 63 59 754 44 622 20 512 0 402 –20 270 –44 188 166 –59 –63 Red Magenta Blue Color Burst NTSC C Signal Output 19/35 ¡ Semiconductor DAC data Lumi (IRE) MSM7653 Composite Wave Form (PAL) Yellow White 973 133 792 100 731 89 627 70 566 59 467 41 406 359 302 30 21.5 11 241 0 123 –21.5 4 –43 Green Cyan Red Black Magenta Blue PAL Composite Signal DAC data Lumi (IRE) Y Wave Form (PAL) White 792 100 731 89 627 70 566 59 467 41 406 30 302 11 241 0 4 –43 Cyan Yellow Magenta Green Blue Red Black PAL Y Signal Output 20/35 ¡ Semiconductor DAC data Lumi (IRE) MSM7653 C Wave Form (PAL) Yellow Green Cyan 858 836 63 59 754 44 630 21.5 512 0 394 –21.5 270 –44 188 166 –59 –63 Red Magenta Blue Color Burst PAL C Signal Output 21/35 ¡ Semiconductor MSM7653 NTSC (Interlaced) Field 1 259 Reference sub-carrier phase 260 261 262 263 1 A NEGATIVE HALF CYCLE Burst relative –180° to B-Y axis 2 3 4 B 5 POSITIVE HALF CYCLE Burst relative 180° to B-Y axis 6 7 8 17 18 19 6 7 8 17 18 19 6 7 8 17 18 19 6 7 8 17 18 19 C D E Field 2 259 Reference sub-carrier phase 260 261 262 263 1 A 2 3 4 B 5 C D E Field 3 259 Reference sub-carrier phase 260 261 262 263 1 A 2 3 4 B 5 C D E Field 4 259 Reference sub-carrier phase 260 261 262 263 A 1 2 3 4 B 5 C D E Output timing (Interlaced NTSC) 22/35 ¡ Semiconductor Symbol MSM7653 Name Period Odd field (Even field) A First equalizing pulse period (3H) B Vertical synchronization period (3H) 259.5 to 262.5H 1 to 3H C Second equalizing pulse period (3H) D Burst pause period 1 to 6,259.5 to 262.5H 4 to 6H E Vertical blanking period (20H) 1 to 17,259.5 to 262.5H Output timing (Interlaced NTSC) 23/35 ¡ Semiconductor MSM7653 NTSC (Non-interlaced) NEGATIVE HALF CYCLE Burst relative –180° to B-Y axis Continuous Odd Field POSITIVE HALF CYCLE Burst relative 180° to B-Y axis Reference sub-carrier phase 260 261 262 1 A 2 3 4 5 B 6 7 8 17 18 19 6 7 8 17 18 19 6 7 8 17 18 19 6 7 8 17 18 19 C D E Reference sub-carrier phase 260 261 262 1 A 2 3 4 5 B C D E Continuous Even Field Reference sub-carrier phase 260 261 262 1 A 2 3 4 5 B C D E Reference sub-carrier phase 260 261 262 1 A 2 3 4 5 B C D E Output timing (Non-interlaced NTSC) Symbol Period Name Continuous odd • even field A First equalizing pulse period (2H) 261 to 262H B Vertical synchronization period (3H) 1 to 3H C Second equalizing pulse period (2H) 4 to 6H D Burst pause period 261 to 6H E Vertical blanking period (19H) 261 to 17H Output timing (Non-interlaced NTSC) 24/35 ¡ Semiconductor MSM7653 PAL (Interlaced) Burst phase +135° +V Field 1,5 309 310 311 312 313 1 2 A 3 Burst phase -135° -V 4 B 5 6 7 8 23 24 25 5 6 7 8 23 24 25 5 6 7 8 23 24 25 5 6 7 8 23 24 25 C D E Field 2,6 309 310 311 312 313 1 2 A 3 4 B C D E Field 3,7 309 310 311 312 313 1 A 2 3 4 B C D E Field 4,8 309 310 311 312 313 1 A 2 3 4 B C D E Output timing (Interlaced PAL) Symbol Name Period Field 1,5 Field 2,6 Field 3,7 Field 4,8 A First equalizing pulse period (2.5H) 311 to 312.5H 311 to 312.5H 311 to 312.5H 311 to 312.5H B Vertical synchronization period (2.5H) 1 to 2.5H 1 to 2.5H 1 to 2.5H 1 to 2.5H C Second equalizing pulse period (2.5H) 2.5 to 5H 2.5 to 5H 2.5 to 5H 2.5 to 5H D Burst pause period 1 to 6,310 to 312.5H 1 to 5.5,308.5 to 312.5H 1 to 5,311 to 312.5H 1 to 6.5,309.5 to 312.5H E Vertical blanking period (25H) 1 to 22.5,311 to 312.5H 1 to 22.5,311 to 312.5H 1 to 22.5,311 to 312.5H 1 to 22.5,311 to 312.5H Output timing (Interlaced PAL) 25/35 ¡ Semiconductor MSM7653 PAL (Non-interlaced) Burst phase +135° +V Continuous Odd Field 309 310 311 312 1 A 2 3 Burst phase -135° -V 4 B 5 6 7 8 23 24 25 5 6 7 8 23 24 25 5 6 7 8 23 24 25 5 6 7 8 23 24 25 C D E 309 310 311 312 1 A 2 3 4 B C D E Continuous Even Field 309 310 311 312 1 A 2 3 4 B C D E 309 310 311 312 1 A 2 3 4 B C D E Output timing (Non-interlaced PAL) Symbol Period Name Continuous odd • even field 311 to 312H A First equalizing pulse period (2H) B Vertical synchronization period (2.5H) 1 to 2.5H C Second equalizing pulse period (2.5H) 2.5 to 5H D Burst pause period 311 to 6H E Vertical blanking period (24H) 311 to 22H Output timing (Non-interlaced PAL) 26/35 ¡ Semiconductor MSM7653 <Equalizing pulse, vertical synchronization period> EQUAL q w e r q w 1/2H e 1/2H Setting content of equalizing pulse vertical synchronization period (Ts is sampling clock cycle in each mode) q w e 1/2H ITU 601 NTSC 31Ts 365Ts 64Ts 429Ts ITU 601 PAL 32Ts 369Ts 63Ts 432Ts qEqualizing pulse width qBlanking level wVertical sync pulse width w(synchronizing + blanking level) ¥ (2/3) e(synchronizing + blanking level) ¥ (1/3) eSerration rSynchronzing level <Horizontal blanking period> 1H r t e w q q w e r t qSynchronzing level w(synchronizing + blanking level) ¥ (1/3) e(synchronizing + blanking level) ¥ (2/3) rBlanking level tPeak to peak value of burst qHorizontal sync pulse width wBurst signal output period eBurst signal start rHorizontal blanking period (excluding front porch) tFront porch start Horizontal blanking period Setting content of horizontal blanking period (Ts is sampling clock cycle in each mode) e r t q w ITU601 NTSC 63Ts 31Ts 71Ts 127Ts 838Ts 858 ITU601 PAL 63Ts 31Ts 75Ts 142Ts 844Ts 864 Total dots/1H Setting content of horizontal blanking period 27/35 ¡ Semiconductor MSM7653 Setup Level Setting When the NTSC operation mode is selected, one of the two kinds of setup level can be selected by setting of registers. When the setup level 0 is selected, the Black-to-White is 100IRE. When the setup level 7.5IRE is selected, the Black-to-White is 92.5IRE. However, this setup function is valid only for the NTSC mode and invalid for the PAL mode. Color Bar Generation Function 25%, 50%, 75% or 100% luminance order color bar is output by setting internal registers. The output timings for each color bar color is as follows. White Yellow Cyan Green Red Blue Black Magenta q w e r t y u Output timing of each color bar color hblank q w e r t y u 1H ITU601 NTSC 127Ts 216Ts 305Ts 394Ts 483Ts 572Ts 661Ts 750Ts 858Ts ITU601 PAL 142Ts 230Ts 318Ts 406Ts 494Ts 582Ts 670Ts 757Ts 864Ts Operation mode (Ts : sampling block period) Contents of color bar output timing setting 28/35 ¡ Semiconductor MSM7653 I2C BUS FORMAT Basic input format of I2C-bus interface is shown below. S Slave Address A Subaddress A Data 0 Symbol A ..... Data n A P Description Start condition S Slave address 1000100X (ADRS pin : 0) or 1000110X (ADRS pin : 1), Slave Address the 8th bit is R (1)/W (0) signal. A Acknowledge. Generated by slave Subaddress Subaddress byte Data n Data byte and acknowledge continues until data byte stop condition is met. P Stop condition As described above, it is possible to read and write data from subaddress to subaddress continuously. Reading from and writing to discontinuous addresses is performed by repeating the Acknowledge and Stop condition formats after Data 0. If one of the following matters occurs, the encoder will not return "A" (Acknowledge). • The slave address does not match. • A non-existent subaddress is specified. • The read/write attribute of a register does not match "X" (read : 1/write : 0 control bit). The input timing is shown below. SDA SCL MSB S 1 2 7 Start Condition Data Line Stable: Data Valid Change of Data Allowed 8 9 ACK tC_SCL 1 2 3-8 tL_SCL 9 ACK P Stop Condition tH_SCL I2C-bus Basic Input/Output Timing 29/35 ¡ Semiconductor MSM7653 CLOSED CAPTION FUNCTION The closed caption function based on the NCI standard is available. The caption information on each line is multiplexed as a 26-cycle signal which is synchronized at 503 kHz. Each cycle is described below. Cycles 1 to 7 Clock-Run-in period Cycles 8 to 10 Cycles 11 to 26 Start Code Caption Information 7-cycle clock signal to synchronize caption data with caption information. Fixed signal with logical level "001" 2-byte multiplex information with combination of the ASCII code bits 0 - 6 and the 7ODD parity bit. The first byte is multiplexed in cycles 11 to 18 and the second byte is multiplexed in cycles 19 to 26, starting from LSB. The output timing when data is multiplexed by the closed caption function is shown below. 50IRE Cycle 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 50IRE Transition time 20IRE 0IRE –40IRE Clock Run in Start Code 16-bit Information 13.9 ms (reference) 6.0 ms (reference) 31.8 ms (reference) 10.0 ms (reference) 61.7 ms (reference) Caption signal 100% 50% Transition time : ns Transition time 30/35 ¡ Semiconductor MSM7653 INTERNAL REGISTERS The register (ID number) for the Anticopy function and the register (CCSTAT) for the closed caption are read-only registers. The other registers are write-only registers. Details of the internal registers are described below. (Values marked * are set by default.) Sub- Default Register name R/W Item to be set Description address value MR Write (Mode register) Only 00 00 MR[4] Override Switching between the external terminal and internal register settings (for the operation mode) *0 : External pin setting enabled 1 : Internal register setting enabled MR[3] Chroma format Chrominance signal input format *0 : Offset binary 1 : 2's complement MR[2] Black level control Black level setup Note : Valid in NTSC mode only *0 : Black level 0IRE 1 : Black level 7.5IRE MR[1] Master/Slave Master or slave operation select *0 : Slave 1 : Master MR[0] Video mode select Operation mode switching *0 : ITU601 NTSC 1 : ITU601 PAL CR Write (Command Register) Only 01 03 CR[4] Undefined — CR[3] Interlace Scanning method (Note 1) *0 : Interlace 1 : Non-interlace CR[2] Color bar Adjusting luminance order color bar output control *0 : Input image data or overlay data 1 : Luminance order color bar CR[1:0] Overlay level Overlay signal/adjusting luminance order color bar output level control *00 : 100% 01 : 75% 10 : 50% 11 : 25% (Note 1) When the MR[4] register is set to "1" to enable the settings of the internal registers, the settings of pin 7 (MODE) and the MR[0] register should be the same. 31/35 ¡ Semiconductor MSM7653 Sub- Default Register name R/W Item to be set Description address value CCEN Write 02 00 CCEN[1:0] Closed Caption Enable Closed caption function on/off control Only *0 : C.C. encoding off 1 : Odd field encoding on 2 : Even field encoding on 3 : Both field encoding on CCLN Write 03 11 CCLN[4:0] Closed Caption Line Number Closed caption data insertion line Only number setting NTSC : CCLN + 4 PAL : CCLN + 1 CCODT0 Write CCODT1 Write CCEDT0 Write 04 00 CCODT0[7:0] 1st byte of C.C. data, ODD field First byte closed caption data in odd-number 05 00 CCODT1[7:0] 2nd byte of C.C. data, ODD field Second byte closed caption data in odd-number 06 00 CCEDT0[7:0] 1st byte of C.C. data, EVEN field First byte closed caption data in even-number Only field Only field Only CCEDT1 Write field 07 00 CCEDT1[7:0] 2nd byte of C.C. data, EVEN field Second byte closed caption data in Only CCSTAT Read even-number field 08 00 CCSTAT[0] Odd field C.C. status odd-number field status Only *0 : CCODT0, CCODT1 writing completed 1 : ODD Field C.C. bytes ENCODE completed CCSTAT[1] Odd field C.C. status Even-number field status *0 : CCEDT0, CCEDT1 writing completed 1 : EVEN Field C.C. bytes ENCODE completed OPERATION MODE SETTING BY PIN CONTROL The contents of control using TEST1, SEL1, SEL2, CLKSEL, and MS are shown below. TEST1 SEL1 SEL2 CLKSEL MS TEST1 0 0 0 0 0 0 0 : Normal operation 0 : Normal operation 0 : ITU Rec. 656 0 : 27 MHz 0 : Slave SEL1 0 0 0 0 0 1 SEL2 0 0 0 1 1 x 1 : Test mode 1 : Sleep mode 1 : Y Cb Cr 1 : 13.5 MHz 1 : Master CLKSEL MS 0 0 1 0 1 1 0 0 0 1 x x x : don't care Operation mode ITUR656 Slave 13.5 MHz YCbCr Slave 13.5 MHz YCbCr Master 27 MHz YCbCr Slave 27 MHz YcbCr Master Sleep Mode 32/35 ¡ Semiconductor MSM7653 FILTER CHARACTERISTICS The characteristics of LPF used for color signal processing and interpolation filters used for upsampling processing are shown below. LPF for 422 color signals The following shows the characteristics when the clock frequency is 13.5 MHz. 0 Level [dB] –20 –40 –60 –80 –100 0 1 2 3 4 Frequency [MHz] 5 6 7 422 Interpolation + LPF Frequency Characteristic Interpolation The following shows the characteristics when the clock frequency is 27 MHz. 0 Level [dB] –20 –40 –60 –80 –100 0 2 4 6 8 Frequency [MHz] 10 12 14 Up Sampling Filter Frequency Characteristic (Note) The characteristics of these filters are based on design data. 33/35 ¡ Semiconductor MSM7653 APPLICATION CIRCUIT EXAMPLE 5 V or 3.3 V SCL MS MODE OUTSEL CLKSEL SEL1 SEL2 DVDD 3.3 V Controller SDA DIP SW 5 V or 3.3 V RL VREF Typ. 1.25 V 3.3 V FS COMP YD[7:0] CD[7:0] CD[7:0] LPF AMP LPF AMP LPF AMP YA MSM7653 YD[7:0] CC = 0.1 µF RC OLR OLG OLB OLC Overlay Controller 3.3 V AVDD RL I2C R1 CVBSO R1 CLKX1O CA VSYNC_L R1 HSYNC_L BLANK_L DGND AGND CLKX2 RC = 500 Ω VR Recommended Analog Output Circuit +AVCC YA CA CVBSO 0.1 mF 3.6 mH 150 W 150 W 164 pF 164 pF + – 1000 mF + OUTPUT 75 W 560 W 560 W 0.1 mF LPF (Toko-make 621LJN-1471 is recommended.) –AVCC Note: The termination of a DA converter analog output with a 37.5 W load eliminates need for an AMP. 34/35 ¡ Semiconductor MSM7653 PACKAGE DIMENSIONS (Unit : mm) 56-Pin Plastic QFP 35/35 E2Y0002-29-62 NOTICE 1. The information contained herein can change without notice owing to product and/or technical improvements. Before using the product, please make sure that the information being referred to is up-to-date. 2. The outline of action and examples for application circuits described herein have been chosen as an explanation for the standard action and performance of the product. When planning to use the product, please ensure that the external conditions are reflected in the actual circuit, assembly, and program designs. 3. When designing your product, please use our product below the specified maximum ratings and within the specified operating ranges including, but not limited to, operating voltage, power dissipation, and operating temperature. 4. Oki assumes no responsibility or liability whatsoever for any failure or unusual or unexpected operation resulting from misuse, neglect, improper installation, repair, alteration or accident, improper handling, or unusual physical or electrical stress including, but not limited to, exposure to parameters beyond the specified maximum ratings or operation outside the specified operating range. 5. Neither indemnity against nor license of a third party’s industrial and intellectual property right, etc. is granted by us in connection with the use of the product and/or the information and drawings contained herein. No responsibility is assumed by us for any infringement of a third party’s right which may result from the use thereof. 6. The products listed in this document are intended for use in general electronics equipment for commercial applications (e.g., office automation, communication equipment, measurement equipment, consumer electronics, etc.). These products are not authorized for use in any system or application that requires special or enhanced quality and reliability characteristics nor in any system or application where the failure of such system or application may result in the loss or damage of property, or death or injury to humans. Such applications include, but are not limited to, traffic and automotive equipment, safety devices, aerospace equipment, nuclear power control, medical equipment, and life-support systems. 7. Certain products in this document may need government approval before they can be exported to particular countries. The purchaser assumes the responsibility of determining the legality of export of these products and will take appropriate and necessary steps at their own expense for these. 8. No part of the contents contained herein may be reprinted or reproduced without our prior permission. Copyright 1999 Oki Electric Industry Co., Ltd. Printed in Japan