Document
MST720A/MST720A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.3
Doc. No.: 2006050041
FEATURES
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Video Decoder Ÿ Supports NTSC and PAL video input formats Ÿ 2D NTSC and PAL comb-filter for Y/C separation of CVBS input Ÿ Single CVBS and S-video input Ÿ Supports Closed-caption and V-chip Ÿ ACC, AGC, and DCGC (Digital Chroma Gain Control)
Ÿ Programmable startup operating frequency and period with output voltage regulation Ÿ Programmable output current regulation; 40KHz~70KHz switching frequency, sync. to HSYNC possible Ÿ Burst-mode or continuous-mode for output current regulation; 150Hz~300Hz burst-mode frequency, sync. to VSYNC possible Ÿ Programmable protection level for input voltage and fault detection
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Color Engine Ÿ Brightness, contrast, saturation, and hue adjustment Ÿ 9-tap programmable multi-purpose FIR (Finite Impulse Response) filter Ÿ Differential 3-band peaking engine Ÿ Luminance Transient Improvement (LTI) Ÿ Chrominance Transient Improvement (CTI) Ÿ Black Level Extension (BLE) Ÿ White Level Extension (WLE) Ÿ Favor Color Compensation (FCC) Ÿ 3-channel gamma curve adjustment
Miscellaneous Ÿ Built-in MCU Ÿ 3-wire serial bus interface for configuration setup Ÿ Built-in step-down PWM circuits for input 2.5V Ÿ Built-in VCOM DC level adjusting circuits Ÿ Built-in internal OSD with 256 programmable fonts, 16-color palettes, and 12-bit color resolution Ÿ 3-channel low-power 8-bit DAC integration for RGB output, dynamic range 0.1-4.9V Ÿ Built-in VCOM DC/AC level adjustment circuit Ÿ Spread spectrum clocks Ÿ Optional 3.3V / 5V output pads with programmable driving current Ÿ 100-pin LQFP package
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Scaling Engine/TCON Ÿ Supports analog panels with the resolution of 960x234, 1200x234, 1400x234, and more Ÿ Supports various displaying modes Ÿ Supports horizontal panorama scaling
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Digital PWM Controller Ÿ Integrated general purpose digital PWM control loop
Doc. No.: 2006050041
-1Copyright © 2006 MStar Semiconductor, Inc. All rights reserved.
3/16/2006
MST720A/MST720A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.3
Doc. No.: 2006050041
BLOCK DIAGRAM
CVBS S-Video SY/CVBS Switch SC 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 2.5V Power Supply
MicroController
PWM Step-Down
DPWM Controller
Y/CVBS1 C/CVBS2
Video Decoder
TCON
To Analog Panel
Deinterlacer / Scaler
RGB Amplifer
Doc. No.: 2006050041
-2Copyright © 2006 MStar Semiconductor, Inc. All rights reserved.
3/16/2006
MST720A/MST720A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.3
Doc. No.: 2006050041
GENERAL DESCRIPTION
The MST720A is a high quality ASIC for NTSC/PAL car TV application. It receives analog NTSC/PAL CVBS and Automatic gain With automatic Multiple S-Video inputs from TV tuners, DVD or VCR sources, including weak and distorted signals.
control (AGC) and 8-bit 3-channel A/D converters provide high resolution video quantization. video source and mode detection, users can easily switch and adjust variety of signal sources.
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 MST720A supports 3.5”~7” analog TFT-LCD modules.
Doc. No.: 2006050041
-3Copyright © 2006 MStar Semiconductor, Inc. All rights reserved.
3/16/2006
MST720A/MST720A-A Small Size LCD TV Processor with Video Decoder Preliminary Data Sheet Version 0.3
Doc. No.: 2006050041
PIN DIAGRAM (MST720A)
AVDD_MPLL GND HSYNCIN HSYNCIN XIN XOUT AVDD_DAC VCOMOUT VCOMDC VREP_DAC VREM_DAC GND VB AVDD_DAC VG GND
100 96 99 98 97 95 94 93 92 91 90 89 88 87 86 85
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GND VCLAMP REFM REFP AVDD_ADC C1INP C1INM YS1INP YS1INM CVBS1P CVBS1M AVDD_GMC VIN FAULTZ FB2_DPWM FB1_DPWM AVDD_SAR AVSS_SAR AVSS_DPWM AVDD_DPWM Q2 Q1 VDDC GND AVDD_PWM
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VR AVDD_OPLL GND GND VDDC ROM_EN INT_OUT GND VDDP
1 2 3 4 5 6 7 8 9 10 11
75 74
Pin 1
73 72 71 70 69 68 67 66 65
12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36
64 63 62 61 60 59 58 57 56 55 54 53 52 51
TCON15 TCON14 TCON13 TCON12 TCON11 TCON10 TCON9 TCON8 TCON7 TCON6 TCON5 TCON4 TCON3 TCON2 TCON1 VDDP GND GPIO_P01 GPIO_P00 GPIO_P02 RESET PWMD1 PWMD2 GND POWER_ON_RSTN/CS
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Doc. No.: 2006050041
PWMOUT2 FB2 SENSE2 PWMOUT1 FB1 SENSE1 CP2_FB CP2_N CP2_P CP1_FB CP1_N CP1_P REF_PWM PGOOD SAR0 SAR1 SAR2 SCK SDI SDO CSN PWMD4 INT SDA SCL
-4Copyright © 2006 MStar Semiconductor, Inc. All rights reserved.
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MST720A XXXXXXXXXXX XX.