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MST726A/MST726A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.1
FEATURES
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Video Decoder Y Supports NTSC, PAL and SECAM video input formats Y 2D NTSC and PAL comb-filter for Y/C separation of CVBS input Y Single S-video and/or multiple CVBS inputs Y Supports closed-caption and V-chip Y ACC, AGC, and DCGC (Digital Chroma Gain Control) Analog Input Y Supports RGB input format from PC, camcorders and GPS Y Supports video input 480i, 480p, 576i, 576p, 720p, 1080i; RGB input resolution in 640x480, 800x480, and 800x600 (SVGA) Y 3-channel low-power 10-bit ADCs integration for RGB Y Supports RGB composite sync input (CSYNC), SOY, SOG, HSYNC, and VSYNC Y On-chip clock synthesizer and PLL Y Auto-position adjustment, auto-phase adjustment, auto-gain adjustment, and auto-mode detection Color Engine Y Brightness, contrast, saturation, and hue adjustment Y 9-tap programmable multi-purpose FIR (Finite Impulse Response) filter Y Differential 3-band peaking engine Y Luminance Transient Improvement (LTI) Y Chrominance Transient Improvement (CTI) Y Black Level Extension (BLE) Y White Level Extension (WLE) Y Favor Color Compensation (FCC) Y 3-channel gamma curve adjustment
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Scaling Engine/TCON Y Supports analog panels with the resolution of 960x234, 1200x234, 1400x234, and more Y Supports various displaying modes Y Supports horizontal panorama scaling Digital PWM Controller Y Integrated general purpose digital PWM control loop Y Programmable startup operating frequency and period with output voltage regulation Y Programmable output current regulation; 40KHz~70KHz switching frequency, sync. to HSYNC possible Y Burst-mode or continuous-mode for output current regulation; 150Hz~300Hz burst-mode frequency, sync. to VSYNC possible Y Programmable protection level for input voltage and fault detection Miscellaneous Y Built-in MCU Y 3-wire serial bus interface for configuration setup Y Built-in VCOM DC level adjusting circuits Y Built-in internal OSD with 256 programmable fonts, 16-color palettes, and 12-bit color resolution Y 3-channel low-power 8-bit DAC integration for RGB output, dynamic range 0.1-4.9V Y Built-in step-down PWM circuits for input 2.5V Y Built-in VCOM DC/AC level adjustment circuit Y Supports external OSD Y Spread spectrum clocks Y Optional 3.3V / 5V output pads with programmable driving current Y 128-pin PQFP package
Version 0.1
-1Copyright (c) 2006 MStar Semiconductor, Inc. All rights reserved.
3/13/2006
www..com
MST726A/MST726A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.1
BLOCK DIAGRAM
R RGB CVBS 1/2 S-Video Switch SY/CVBS SC G B Auto Function for RGB ADC Input
2-Channel AFE
Video Decoder Timing Generator
YC Separation 2D Comb Filter
Chroma Demodulator
M U X
3x3 Color Space Conversion
MACE
Scaling Engine
CSC (RGB to YCbCr)
OSD
Gamma
Display Unit
TCON
Display Device
MCU
BIU
DPWM Controller
DPWM Output
Flash Memory or EEPROM
External MCU
Feedback Voltage
SYSTEM APPLICATION DIAGRAM
Flash / ROM
MicroController
TV / Cable Signal
TV Tuner Additional CVBS Video Decoder
VCOM Application Circuit
DVD / VCD S-Video Signal Additional RGB Signal
TCON
To Analog Panel
Deinterlacer / Scaler
RGB Amplifer
Version 0.1
-2Copyright (c) 2006 MStar Semiconductor, Inc. All rights reserved.
3/13/2006
www..com
MST726A/MST726A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.1
GENERAL DESCRIPTION
The MST726A is a high quality ASIC for NTSC/PAL/SECAM car TV application. It receives analog NTSC/PAL/SECAM CVBS and S-Video inputs from TV tuners, DVD or VCR sources, including weak and distorted signals, as well as analog RGB input from GPS systems. Automatic gain control (AGC) and 8-bit 3-channel A/D converters provide high resolution video quantization. With automatic video source and mode detection, users can easily switch and adjust variety of signal sources. Multiple internal adaptive PLLs precisely extract pixel clock from video source and perform sharp color demodulation. Built-in line-buffer supports adaptive 2-D comb-filter, 2-D sharpening, and synchronization stabler in a condense manner. The output format of MST726A supports 3.5"~7" analog TFT-LCD modules.
Version 0.1
-3Copyright (c) 2006 MStar Semiconductor, Inc. All rights reserved.
3/13/2006
www..com
MST726A/MST726A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.1
PIN DIAGRAM (MST726A)
GND AVDD_MPLL AVDD_FSCPLL GND HSYNCIN VSYNCIN XIN XOUT GND AVDD_XTAL AVDD_DAC VCOMOUT VCOMDC REFP_DAC REFM_DAC GND VB AVDD_DAC VG GND VR AVDD_OPLL GND GND VDDC ROM_EN
128 127 126 125 124 123 122 121 120 119 118 117 116 115 114 113 112 111 110 109 108 107 106 105 104 103
GND VMID VCLAMP REFM REFP AVDD_ADC SOGIN BINP BINM GINP GINM RINP RINM AVDD_ADC GND C1INP C1INM YS1INP YS1INM CVBS1P CVBS1M CVBS2P CVBS2M GND AVDD_GMC VIN FAULTZ FB2_DPWM FB1_DPWM AVDD_SAR AVSS_SAR AVSS_DPWM AVDD_DPWM Q2 Q1 AVSS_PWM AVDD_PWM PWMOUT2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
102 101
Pin 1
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86
18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
85 84 83 82 81 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65
INT_OUT GND VDDP TCON[15] TCON[14] TCON[13] TCON[12] TCON[11] TCON[10] TCON[9] TCON[8] GPIO_P04 TCON[7] TCON[6] TCON[5] TCON[4] TCON[3] TCON[2] TCON[1] GPIO_P03 VDDP GND HSYNCO VSYNCO DEO CLKO FB OSDB OSDG OSDR RESET PWMD1 PWMD2 GND POWER_ON_RSTN/CS SCL SDA INT
50
51
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54
55
56
57
58
59
60
61
62
63
Version 0.1
FB2 SENSE2 PWMOUT1 FB1 SENSE1 CP2_FB CP2_N CP2_P CP1_FB CP1_N CP1_P REF_PWM PGOOD SAR0 SAR1 SAR2 VDDC GND SCK SDI SDO CSN GPIO_P24/PWMD3 GPIO_P25/PWMD4 GPIO_P01 GPIO_P02
-4Copyright (c) 2006 MStar Semiconductor, Inc. All rights reserved.
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MST726A
3/13/2006

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