VT1621M VIA, VT1621M Datasheet
VT1621M
Related parts for VT1621M
VT1621M Summary of contents
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... DataSheet : www.DataSheet4U.com ) VT1621 and VT1621M www.DataSheet4U.com TV Encoder Revision 1.0 June 17, 2002 VIA TECHNOLOGIES, INC. ...
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... No part of this document may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual or otherwise without the prior written permission of VIA Technologies Incorporated. VT1621 and VT1621M may only be used to identify a product of VIA Technologies, Inc registered trademark of VIA Technologies, Incorporated. Windows 98 ...
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... We Connect We Connect We Connect We Connect Document Release Date 1.0 6/17/02 Revision 1.0 June 17, 2002 R H EVISION ISTORY Revision Initial Public Release -i- VT1621 / VT1621M TV Encoder Initials Revision History EY ...
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... Power Down mode ................................................................................................................................................................27 Macrovision Anti-Copy Protection......................................................................................................................................27 Display Modes .......................................................................................................................................................................27 Filters .....................................................................................................................................................................................30 Clock Frequency ...................................................................................................................................................................32 PC BOARD LAYOUT CONSIDERATIONS ................................................................................................................................ ...........................................................................................................................................................33 OMPONENT LACEMENT ELECTRICAL SPECIFICATIONS ............................................................................................................................................... BSOLUTE AXIMUM ATINGS ECOMMENDED PERATING ONDITIONS Revision 1.0 June 17, 2002 T C ABLE OF ONTENTS ..................................................................................................................................................34 .................................................................................................................................34 -ii- VT1621 / VT1621M TV Encoder Table of Contents ...
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... TABLE 5. DISPLAY MODES FOR PAL (M)..............................................................................................................................27 TABLE 6. DISPLAY MODES FOR NTSC (M, J) & PAL ( NC) ....................................................................29 TABLE 7. CLOCK SETTINGS .....................................................................................................................................................32 Revision 1.0 June 17, 2002 OTAL OWER ONSUMPTION PECIFICATIONS .......................................................................................................................................... IST OF IGURES L T IST OF ABLES -iii- VT1621 / VT1621M TV Encoder ....................................................................35 Table of Contents ...
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... Supports digital RGB (15/16 or 24-bit) or YCrCb (CCIR601 or CCIR656) 16 bit 4:2:2 input video data in both interlaced or non-interlaced formats Supports NTSC(M and J) or PAL ( and Nc) TV output standards Supports Macrovision 7.1 anti-copy protection (VT1621M only) Underflow check and coring function for reducing the input noise Composite, S-Video and SCART output support ...
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... We Connect We Connect The VT1621 and VT1621M are television encoders that accept various RGB or YCrCb pixel data streams from a VGA controller or MPEG decoder and generates high quality flicker-free composite and Y/C (S-video) signals. Both of these chips contain the same functionality and register. The only variation is that the VT1621 is Macrovision disabled and the VT1621M is Macrovision enabled ...
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... GND PD9 PD10 PD11 Revision 1.0 June 17, 2002 P INOUTS Pin Diagram Encoder TQFP Note: 1. VCC25: 2.5V Figure 2. Pin Diagram (Top View) -3- VT1621 / VT1621M TV Encoder VCCPLL 31 VCC33 30 RESET# 29 GND 28 SBC 27 SBD 26 VCCDAC 25 RSET 24 GNDDAC 23 2. VCC33: 3.3V 3. VCCPLL: 2.5V 4 ...
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... GND 29 GND 24 27 GND 26 GND GND 14 GNDDAC 5 GNDDAC 16 GNDPLL 12 HSYNC 30 PCLK 38 PD0 25 PD1 31 PD2 41 PD3 39 PD4 32 PD5 33 PD6 22 -4- VT1621 / VT1621M TV Encoder Pin Name IO PD7 IO PD8 IO PD9 IO PD10 IO PD11 I RESET# I RSET I SBC IO SBD I TESTMODE P VCC25 P VCC25 P VCC33 P VCC33 P VCC33 P VCCDAC P VCCPLL ...
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... XI, this pin should be connected to ground. An external resistor, typically 4.87k , attached between this pin and ground sets the FS (full scale) range of the DACs. Power and Ground Description I/O Power. 3.3V I/O Ground Digital Power. 2.5V Digital Ground PLL Power. 2.5V PLL Ground DAC Power. 2.5V DAC Ground -5- VT1621 / VT1621M TV Encoder Pinouts ...
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... EGISTERS Register Overview The following tables summarize the configuration and I/O registers that apply to the VT1621 and VT1621M TV Encoder. These tables also document the power-on default value (“Default”) and access type (“Acc”) for each register. Access type definitions used are RW (Read/Write), RO (Read/Only), “ ...
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... YCrCb (Y shift 16) input (Y, Cr and Cb multiplexed) 111x 8-bit multiplexed YCrCb (Y shift 16 and Cr and Cb shift 128) input (Y, Cr and Cb multiplexed) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Offset 01 – Input Sync Format......................................... RW 7 Reserved ........................................always reads 0 6 Field Signal Polarity 0 Active Low ...
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... Output Line Selection 0 625 .................................................... default 1 525 0 Output TV Standard 0 PAL .................................................... default 1 NTSC Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Offset 05 – Control 1......................................................... RW 7 Reserved ........................................always reads 0 6 Master / Slave Clock Mode Select 0 Master Clock Mode ...............................default 1 Slave Clock Mode 5 Reserved ...
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... Enable 2 Reserved ........................................ always reads 0 1 S-Video DAC Power State 0 On .......................................................... default 1 Off 0 Composite DAC Power State 0 On .................................................... default 1 Off Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Offset 0F – Status...............................................................RO 7 Macrovision Copy Protection 0 Disable ...................................................default 1 Enable 6 Reserved ........................................always reads 0 5-3 MS_POS 0 ....................................................default ...
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... VCO Output Division Factor Bit-8 (see Rx14) .............................................................. default = 0 0 Resister Selection Bit-3 (see Rx13[7-5]) .. default = 0 Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Offset 16 – Sub-Carrier Value 0 ...................................... RW 7-0 Sub-Carrier Value Bits 7:0 ..................default = 00h Offset 17 – Sub-Carrier Value 1 ...................................... RW 7-0 Sub-Carrier Value Bits 15:8 ................default = 00h Offset 18 – ...
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... PD[3:0] Bus 0 Input Mode ............................................ default 1 Output Mode 0 Test Input Pad 0 .................................................... default 1 Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Offset 1F – Test 2 .............................................................. RW 7-6 Y DAC Control 00 Normal function .....................................default 01 DAC off 10 Test DAC 11 Invert test DAC 5-4 C DAC Control 00 Normal function .....................................default 01 DAC off 10 Test DAC ...
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... Text Enhancement Lower Threshold . default = 00h Offset 4E – Aperture Mode ............................................. RW 7 Aperture Mode 0 Normal................................................... default 1 Inverse 6-0 Adjustment Delta ...................................... default = 0 Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Offset 4F – Coring Function ............................................ RW 7 Coring Function 0 Disable ...................................................default 1 Enable 6-0 Coring Function Threshold .....................default = 0 Offset 50 – Y Delay Control ............................................. RW 7-3 Reserved ...
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... S-video signal. DAC Both VT1621 and VT1621M contain three DACs. Each DAC Because this is used to convert digital composite or luma / chroma data to analog signals and can be individually powered off if not required ...
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... Moreover, this clock will be a reference clock of the VT1621 or the VT1621M for generating a pixel clock. The HSYNC and VSYNC signals can be programmed to be either input or output to the VT1621 and VT1621M. In slave clock mode, both VT1621 and VT1621M can be configured as illustrated in Figure 5. ...
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... Configuration 3 Revision 1.0 June 17, 2002 VT1621 or VT1621M PCLK VT1621 or VT1621M PCLK Figure 4. Master Clock Mode 2 VT1621 or VT1621M VT1621 or VT1621M Figure 5. Slave Clock Mode - 15- VT1621 / VT1621M TV Encoder Hsync Video VT1621 Vsync Source 8/12 data or Device XCLK VT1621M PCLK Configuration 6 Hsync Video VT1621 Vsync Source or ...
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... We Connect We Connect Digital Video Interface The VT1621 and the VT1621M can both be configured with an 8-bit or 12-bit data bus. It accepts RGB 16-bit, RGB 15- bit, RGB 24-bit or YCrCb 16-bit (CCIR 656) data format. Each rising edge (or each rising and falling edge) of the XCLK signal will latch data from the video source device ...
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... Figure 7 through Figure 12 which summarize all the common video standards. Composite and S-video outputs are supported in either NTSC or PAL format. Figure 13 through Figure 18 illustrate the composite and S-video output waveforms of color test pattern bars. - 17- VT1621 / VT1621M TV Encoder 7 8 16-bit RGB 15-bit RGB 16-bit YCrCb P#A ...
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... We Connect We Connect We Connect We Connect Figure 7. Interlaced 525-Line (NTSC) Video Timing Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 18- Functional Descriptions ...
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... We Connect We Connect We Connect We Connect Figure 8. Interlaced 525-Line (PAL-M) Video Timing Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 19- Functional Descriptions ...
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... We Connect We Connect We Connect We Connect Figure 9. Interlaced 625-Line (PAL- Nc) Video Timing (Fields 1-4) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 20- Functional Descriptions ...
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... We Connect We Connect We Connect We Connect Figure 10. Interlaced 625-Line (PAL- Nc) Video Timing (Fields 5-8) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 21- Functional Descriptions ...
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... We Connect We Connect We Connect We Connect Figure 11. Interlaced 625-Line (PAL-N) Video Timing (Fields 1-4) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 22- Functional Descriptions ...
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... We Connect We Connect We Connect We Connect Figure 12. Interlaced 625-Line (PAL-N) Video Timing(Fields 5-8) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 23- Functional Descriptions ...
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... Figure 13. 525-Line (NTSC/PAL-M) Y (Luma) Video Test Pattern Waveform mA V 26.67 1.000 8.00 0.300 0.00 0.000 Figure 14. 625-Line (PAL- Nc) Y (Luma) Test Pattern Waveform Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder White Level Black / Blank Level Sync Level - 24- White Level Black Level Blank Level Sync Level Functional Descriptions ...
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... Figure 15. 525-line (NTSC/PAL-M) C (Chroma) Video Test Pattern Waveform mA V 28.85 1.079 21.05 0.788 17.05 0.640 13.08 0.492 5.25 0.195 Figure 16. 625-Line (PAL- Nc) C (Chroma) Video Test Pattern Waveform Revision 1.0 June 17, 2002 20 IRE 20 IRE Color Burst (9 Cycles) Color Burst (2.22 us) - 25- VT1621 / VT1621M TV Encoder Blank Level Blank Level Functional Descriptions ...
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... Figure 18. Composite 625-Line (PAL- N,Nc) Video Test Pattern Waveform Revision 1.0 June 17, 2002 Color Burst (9 cycles) 7.5 IRE Color Burst (2.22 ms) - 26- VT1621 / VT1621M TV Encoder White Level Black Level Blank Level Sync Level White Level Black / Blank Level Sync Level Functional Descriptions ...
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... We Connect We Connect We Connect We Connect Color Bar Test Pattern Generator The VT1621 and VT1621M all have a built-in color test pattern generator that produces 75% amplitude and 100% saturation EIA colors for NTSC and PAL video standards as illustrated in Figure 13 through Figure 18. Subcarrier Generation This device uses a 32-bit-word to synthesize the subcarrier. ...
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... We Connect We Connect We Connect We Connect 27* 110 10 * interlaced input mode Revision 1.0 June 17, 2002 000 640 x 400 910 x 525 - 28- VT1621 / VT1621M TV Encoder 14.332515 PAL(M) 1/1 Functional Descriptions ...
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... VT1621 / VT1621M TV Encoder Output Standard Scaling 21.000000 PAL 5/4 26.250000 PAL 1/1 20.139860 NTSC 5/4 24.671329 NTSC 1/1 28.125000 PAL 5/4 34 ...
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... Therefore, the filter coefficients should be Figure 19. Luminance Lowpass Filter Response (27 MHz) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder different for each mode so that the TV Encoder can generate a high quality TV image. programmed through the serial bus interface to provide a controllable bandwidth output on both composite and S-video The UV signals ...
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... We Connect We Connect We Connect We Connect Figure 20. Chrominance Lowpass Filter Response (27MHz) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder - 31- Functional Descriptions ...
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... The settings of the PLL control registers are listed in Table 3 on page 6. Revision 1.0 June 17, 2002 Mode The frequency 24* 25* 27* - 32- VT1621 / VT1621M TV Encoder Table 7. Clock Settings Pixel(MHz 21.000000 2.5 44 26.250000 2 44 20.139860 3.5 64 24.671329 2.5 56 28.125000 4 55 23.790210 2.5 54 29.454545 2.5 36 25.000000 3.5 55 31.500000 ...
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... Analog components or analog sections of mixed signal components should be placed directly over the analog power and ground planes and the same applies to the digital counterparts. VT1621 Ferrite Bead Figure 21. Ground Plane with 4 Layer PCB - 33- VT1621 / VT1621M TV Encoder Ferrite Bead Digital Ground Functional Descriptions ...
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... Digital Power Supply Voltage VCCPLL PLL Power VCCDAC DAC Power RL Output load to DAC outputs Revision 1.0 June 17, 2002 E S LECTRICAL PECIFICATIONS Min –55 0 GND – 0.5 Min 2.97 2.25 2.25 2.25 - 34- VT1621 / VT1621M TV Encoder Typ Max Unit 125 ºC 55 ºC VCC+0 220 ºC Typ Max Unit 3.3 3.63 V 2.5 2. ...
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... Input high voltage IH5T V Output low voltage OL V Output high voltage OH I Input leakage OZ C Input capacitance IN C Output capacitance OUT Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Min Typ 10 50 150 120 80 533 Min Typ Max 3.0 3.6 –0.5 0.3 VCC 0.7 VCC 1.05 VCC 0.7 VCC 5 ...
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... Output Delay Output Rising Time Output Falling Time Output Settling Time Glitch Energy, DAC step settling within 1LSB PSRR DAC to DAC Crosstalk DAC Matching Note: (VDDA2=2.5V; RL=37.5 ; RSET=4.87k ; Temp=60 Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Min Typ Max ...
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... Setup time from Pixel Data to Pixel Clock Hold time from Pixel Clock to Pixel Data PLL Characteristics Operating Conditions Power Supply Clock Output Duty Cycle Note: Crystal Spec: 14.31818MHz ( 50 ppm) Revision 1.0 June 17, 2002 VT1621 / VT1621M TV Encoder Min Typ Min Typ 2 ...
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... GAGE PLANE 0.25m aaa bbb ccc ddd - 38- VT1621 / VT1621M TV Encoder PECIFICATIONS aaa bbb ddd SEATING PLANE ccc C MILLIMETER INCH MIN ...