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AIT130R, AIT2138, AIT2138KL

Table of contents:
Info of AIT130R
Info of AIT2138
Info of AIT2138KL

AIT130R, AIT2138, AIT2138KL Selling Leads, Datasheet

MFG:ANADIGICS Package Cooled:QFN D/C:07+

AIT130R, AIT2138, AIT2138KL Datasheet download

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Part Number: AIT130R

MFG: ANADIGICS

Package Cooled: QFN

D/C: 07+

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AIT2138 General Description

The AIT2138 video signal processor converts the non-interlaced analog RGB and syncs (vertical,horizontal or composite) from a standard VGA source into a broadcast quality NTSC or PAL video signal.In addition to the S-Video and Composite outputs, the AIT2138 provides optional interlaced analog RGB or analog YCbCr output formats. Advanced digital signal processing and Flic-FreeTM digital filter technology provide a clean and stable video display.

The AIT2138 is a master mode only video signal processor. Scan rate conversion is accomplished through an external SDRAM or EDO memory which allows the AIT2138 to accept VGA input not necessarily synchronized with TV timing. The
AIT2138 accepts multi-sync inputs, supporting resolutions from 640x480 (up to 85 Hz refresh rate) to 1024x768 (70 Hz). A proprietary digital scaler fits the computer image, with borders and menu bars visible for all of the above resolutions, into an underscaned TV-Size image for both NTSC and PAL video standards. The AIT2138 also provides Zoom,Freeze, Pan, and Scroll capabilities.

The AIT2138 can be controlled from pins or via I²C.All video processing is done in the digital domain with no tuning circuits. Oversampling techniques in the digital encoder result in very simple and inexpensive analog output filters. The output DACs generate standard video-level signals into a 50W load (150W termination at the source and 75W load at the video monitor).

The AIT2138 requires an absolute minimum of external components. Precision timing is derived from a 27 MHz crystal or clock reference. The AIT2138 conserves power by supporting the VESA DPMS, as well as a complete chip power-down mode. The AIT2138 is fabricated in a sub-micron CMOS process and packaged in 128-lead MQFP.Performance is guaranteed from 0°C to 70°C (TA).

AIT2138 Maximum Ratings

Power Supply Voltages
   V_DDA(Measured to AGND) ......................... -0.5 to +7.0V
    V_DD (Measured to DGND) ........................... -0.5 to +7.0V
    V_DDA (Measured to VDD) ........................... -0.5 to +0.5V
    A_GND (Measured to DGND) ........................ -0.5 to +0.5V
Digital Inputs
    Applied Voltage (Measured to DGND)²... -0.5 to V_DD+0.5V
    Forced current^{3, 4} ......................... -10.0 to +10.0 mA
Analog Inputs
    Applied Voltage (Measured to AGND)² .. -0.5 to VDDA+0.5V
    Forced current ^{3, 4} ......................... -10.0 to +10.0 mA
Outputs
    Applied voltage (Measured to DGND)²... -0.5 to V_DD + 0.5V
    Forced current ^{3, 4} ............................. -6.0 to +6.0 mA
    Short circuit duration (single output in HIGH state to ground) .... 1 second
Temperature
    Operating, ambient ..................................... 0 to 70°C
    junction .......................................................... +150°C
    case ............................................................... +140°C
    Storage ................................................. -20 to +70°C
    Electrostatic Discharge5 ................................. ±150 V

1. Absolute maximum ratings are limiting values applied individually while all other parameters are within specified operating conditions. Functional operation under any of these conditions is NOT implied. Performance and reliability are guaranteed only if Operating Conditions are not exceeded.
2. Applied voltage must be current limited to specified range.
3. Forcing voltage must be limited to specified range.
4. Current is specified as conventional current flowing into the device.
5. EIAJ test method.

AIT2138 Features

· Single-chip, crystal-controlled, all-digital Video Signal Processing
· Simultaneous display on Monitor, LCD and TV
· Multiple frequency input formats:
     640x480, up to 85 Hz
     800x600, up to 85 Hz
     1024x768, up to 70 Hz
· Underscan, Freeze, Zoom, Pan and Scroll
· Supports NTSC, NTSC-EIAJ, and PAL B/D/G/H/I/M/N standards
· Supports Macintosh, NEC-PC98 and PC
· Line-21 and Line-284 Closed Captioning Support
· 3-Channel 8-Bit ADC inputs for true 16.7 million color conversion
· 3-Channel 10-bit DAC outputs
· Proprietary memory compression reduces external memory size
· External EDO (256K X 16-Bit) memory interface
· External SDRAM (1M X 16-Bit) memory interface
· Fully programmable through I2C port or hardware (pin-based) controls
· Flic-Free™ filter
· Selectable TV output format - Composite,S-Video, YCbCr or RGB/SCART
· Auto detect input video mode
· Auto detect the presence of the TV
· Single +5V power supply

AIT2138 Typical Application

· Computer Compatible TV
· Internet Appliance / TV / SetTopBox
· Advanced VGA to Video Converter
· DVD movie playback

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