User manual TEXAS INSTRUMENTS TVP5154A DATASHEET 09-2010

[. . . ] TVP5154A www. ti. com SLES214C ­ DECEMBER 2007 ­ REVISED SEPTEMBER 2010 4-Channel Low-Power PAL/NTSC/SECAM Video Decoder With Independent Scalers and Fast Lock Check for Samples: TVP5154A 1 Introduction 1. 1 1 Features · Internal Phase-Locked Loop (PLL) for Line-Locked Clock (Separate for Each Channel) and Sampling · Sub-Carrier Genlock Output for Synchronizing Color Sub-Carrier of External Encoder · Standard Programmable Video Output Format ­ ITU-R BT. 656, 8-Bit 4:2:2 With Embedded Syncs ­ 8-Bit 4:2:2 With Discrete Syncs · Advanced Programmable Video Output Formats ­ 2× Over-Sampled Raw Vertical Blanking Interval (VBI) Data During Active Video ­ Sliced VBI Data During Horizontal Blanking or Active Video · VBI Modes Supported: ­ Teletext (NABTS, WST) ­ Closed-Caption Decode With FIFO, and Extended Data Services (EDS) ­ Wide Screen Signaling (WSS), Video Program System (VPS), Copy Generation Management System (CGMS), Vertical Interval Time Code (VITC) ­ Gemstar 1×/2× Electronic Program Guide Compatible Mode ­ Custom Configuration Mode Allows User to Program the Slice Engine for Unique VBI Data Signals · Improved Fast Lock Mode Can Be Used When Input Video Standard Is Known and Signals on Switching Channels Are Clean · Four Possible I2C Addresses Allowing 16 Decoder Channels on a Single I2C Bus · Available in Commercial (0°C to 70°C) and Industrial (­40°C to 85°C) Temperature Ranges · Four Separate Video Decoder Channels With Features for Each Channel: ­ Accept NTSC (J, M, 4. 43), PAL (B, D, G, H, I, M, N, Nc), and SECAM (B, D, G, K, K1, L) Video ­ Support ITU-R BT. 601 Standard Sampling ­ High-Speed 9-Bit Analog-to-Digital Converter (ADC) ­ Two Composite Inputs or One S-Video Input (for Each Channel) ­ Fully Differential CMOS Analog Preprocessing Channels With Clamping and Automatic Gain Control (AGC) for Best Signal to Noise (SNR) Performance ­ Brightness, Contrast, Saturation, Hue, and Sharpness Control Through Inter-Integrated Circuit (I2C) ­ Complementary 4-Line (3-H Delay) Adaptive Comb Filters for Both Cross-Luminance and Cross-Chrominance Noise Reduction ­ Patented Architecture for Locking to Weak, Noisy, or Unstable Signals · Four Independent Polymorphic Scalers · Single or Concurrent Scaled and Unscaled Outputs Via Dual Clocking Data, Interleaved 54-MHz Data or Single 27-MHz Clock · Scaled/Unscaled Image Toggle Mode Gives Variable Field Rate for Both Scaled and Unscaled Video · Low Power Consumption: 700 mW Typical · 128-Pin Thin Quad Flat Pack (TQFP) Package · Single 14. 31818-MHz Crystal for All Standards and All Channels 1. 2 Description The TVP5154A device is a 4-channel, low-power, NTSC/PAL/SECAM video decoder. Available in a space-saving 128-pin thin quad flat pack (TQFP) package, each channel of the TVP5154A decoder converts NTSC, PAL, or SECAM video signals to 8-bit ITU-R BT. 656 format. Discrete syncs are also 1 Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. [. . . ] PAL-M is masked from the autoswitch process. Autoswitch does not switch to PAL-M (default). SECAM is unmasked from the autoswitch process. Autoswitch does switch to SECAM (default). SECAM is masked from the autoswitch process. Autoswitch does not switch to SECAM. 7. 2. 6 Address Default 7 Clock Control Register 05h 08h 6 Reserved 5 4 3 SCLK OE 2 Reserved 1 SCLK edge 0 CLK edge CLK edge 0 = CLK data changes on falling edge of CLK. 1 = CLK data changes on rising edge of CLK. SCLK edge 0 = SCLK data changes on falling edge of SCLK. 1 = SCLK data changes on rising edge of SCLK. NOTE: CLK OE is configured through register 0x03 to maintain compatibility with the TVP5150 family of devices. 7. 2. 7 Address Default Color Killer Threshold Control Register 06h 10h 6 5 Automatic color killer 4 3 2 Color killer threshold 1 0 7 Reserved Automatic color killer: 00 = Automatic mode (default) 01 = Reserved 10 = Color killer enabled, the CbCr terminals are forced to a zero color state. 11 = Color killer disabled Color killer threshold: 11111 = ­30 dB (minimum) 10000 = ­24 dB (default) 00000 = ­18 dB (maximum) Copyright © 2007­2010, Texas Instruments Incorporated Internal Control Registers Submit Documentation Feedback Product Folder Link(s): TVP5154A 33 TVP5154A SLES214C ­ DECEMBER 2007 ­ REVISED SEPTEMBER 2010 www. ti. com 7. 2. 8 Address Default Luminance Processing Control #1 Register 07h 60h 6 Pedestal not present 5 Disable raw header 4 Luma bypass enabled during vertical blanking 3 2 1 0 Luminance signal delay with respect to chrominance signal 7 2× luma output enable 2× luma output enable: 0 = Output depends on bit 4, luminance bypass enabled during vertical blanking (default). 1 = Outputs 2x luma samples during the entire frame. Pedestal not present: 0 = 7. 5 IRE pedestal is present on the analog video input signal. 1 = Pedestal is not present on the analog video input signal (default). Disable raw header: 0 = Insert 656 ancillary headers for raw data 1 = Disable 656 ancillary headers and instead force dummy ones (0x40) (default) Luminance bypass enabled during vertical blanking: 0 = Disabled. If bit 7, 2× luma output enable, is 0, normal luminance processing occurs and YCbCr samples are output during the entire frame (default). If bit 7, 2× luma output enable, is 0, normal luminance processing occurs and YCbCr samples are output during VACTIVE and 2× luma samples are output during VBLK. Luminance bypass occurs for the duration of the vertical blanking as defined by registers 18h and 19h. Luma signal delay with respect to chroma signal in pixel clock increments (range ­8 to 7 pixel clocks): 1111 = ­8 pixel clocks delay 1011 = ­4 pixel clocks delay 1000 = ­1 pixel clocks delay 0000 = 0 pixel clocks delay (default) 0011 = 3 pixel clocks delay 0111 = 7 pixel clocks delay 7. 2. 9 Address Default Luminance Processing Control #2 Register 08h 00h 6 Luminance filter select 5 Reserved 4 3 2 Peaking gain 1 Reserved 0 7 Reserved Luminance filter select: 0 = Luminance comb filter enabled (default) 1 = Luminance chroma trap filter enabled Peaking gain (sharpness): 00 = 0 (default) 01 = 0. 5 10 = 1 11 = 2 Information on peaking frequency: ITU-R BT. 601 sampling rate: all standards -- peaking center frequency is 2. 6 MHz 34 Internal Control Registers Submit Documentation Feedback Product Folder Link(s): TVP5154A Copyright © 2007­2010, Texas Instruments Incorporated TVP5154A www. ti. com SLES214C ­ DECEMBER 2007 ­ REVISED SEPTEMBER 2010 7. 2. 10 Address Default 7 Brightness Control Register 09h 80h 6 5 4 3 Brightness control 2 1 0 Brightness control: This register works for CVBS and S-Video luminance. 1111 1111 = 255 (bright) 1000 0000 = 128 (default) 0000 0000 = 0 (dark) The output black level relative to the nominal black level (16 out of 256) as a function of the Brightness[7:0] setting and the Contrast[7:0] setting is as follows. Black Level = nominal_black_level + (Brightness[7:0] - 128) + (438 / 4) × (1 ­ Contrast[7:0] / 128) 7. 2. 11 Color Saturation Control Register Address Default 7 0Ah 80h 6 5 4 3 Saturation control 2 1 0 Saturation control: This register works for CVBS and S-Video chrominance. 1111 1111 = 255 (maximum) 1000 0000 = 128 (default) 0000 0000 = 0 (no color) The total chrominance gain relative to the nominal chrominance gain as a function of the Saturation [7:0] setting is as follows. [. . . ] All products are sold subject to TI's terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with TI's standard warranty. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. Except where mandated by government requirements, testing of all parameters of each product is not necessarily performed. [. . . ]