TW2868-LA2-CR

TW2868-LA2-CR Datasheet

TW2868

Part	Datasheet
TW2868-LA2-CR	TW2868-LA2-CR (pdf)

Related Parts	Information
TW2868-LA1-CR	TW2868-LA1-CR

PDF Datasheet Preview
Techwell GET FULL DATASHEET 8-Channel Video Decoders and Audio Codecs and Video Encoder for Security Applications TW2868 Introduction The TW2868 includes eight high quality NTSC/PAL/SECAM video decoders that convert analog composite video signal to digital component YCbCr data for security application. Each channel contains 10 bit ADC and proprietary clamp and gain controllers and utilizes 4H comb filter for separating luminance & chrominance to reduce cross noise artifacts. The TW2868 adopts the image enhancement techniques, such as IF compensation filter, CTI and programmable peaking. TW2868 also includes one NTSC/PAL video encoder with two 10 bit DAC’s to support CVBS and YC output. The TW2868 also includes audio CODEC, which has ten audio Analog-toDigital converter processing and one Digital-toAnalog converter. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback. • Accepts all NTSC M/4.43 / PAL B/D/G/H/I/K/L/M/N/60 /SECAM standards with auto detection • Integrated eight video analog anti-aliasing filters and 10 bit CMOS ADCs • Automatic white peak control • Programmable hue, saturation, contrast, brightness and sharpness • Proprietary fast video locking system • Supports ITU-R BT.656 type time multiplexed output with 54/108MHz • Provides simultaneous 2x four channel Full D1 with 108MHz and 2x CIF with 54MHz by timemultiplexed output format • Integrated ten audio ADC processing and one audio DAC • Provides multi-channel audio mixed analog output • Supports I2S/DSP Master/Slave interface for record output and playback input • PCM 8/16 bit and u-Law/A-Law 8bit for audio word length • Programmable audio sample rate that covers popular frequencies of 8/16/32/44.1/48kHz • Supports a two-wire serial host interface • Integrated one video encoder and two10bit video CMOS DACs. • Integrated clock PLL for 108MHz clock output. • Ultra low power consumption Typical 867.36mW • 128 pin LQFP package • High performance adaptive 4H comb filters for all NTSC/PAL standards • IF compensation filter for improvement of color demodulation • Color Transient Improvement CTI August 9, 2011 FN7796.0 CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 \| Copyright Intersil Americas Inc. All Rights Reserved Intersil and design is a trademark owned by Intersil Corporation or one of its subsidiaries. All other trademarks mentioned are the property of their respective owners. TW2868 Block Diagram Video, Clock and Host Interface VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 VIN8 AADDCC 4H Comb Video Decoder 4H Comb Video Decoder 4H Comb Video Decoder 4H Comb Video Decoder 4H Comb Video Decoder 4H Comb Video Decoder 4H Comb Video Decoder 4H Comb Video Decoder VYOUT VCOUT Digital Video Encoder Host Interface Clock PLL Clock Mux Interface MPP Interface Generator VD1[7:0] VD2[7:0] VD3[7:0] VD4[7:0] MPP1 MPP2 MPP3 MPP4 MPP5 MPP6 MPP7 MPP8 CLKPO XTO XTI CLKNO SCLK SDAT IRQ ENCLK ED[7:0]

PDF Datasheet Preview

Techwell

GET FULL DATASHEET
8-Channel Video Decoders and Audio Codecs and Video Encoder for Security Applications

TW2868

Introduction

The TW2868 includes eight high quality NTSC/PAL/SECAM video decoders that convert analog composite video signal to digital component YCbCr data for security application. Each channel contains 10 bit ADC and proprietary clamp and gain controllers and utilizes 4H comb filter for separating luminance & chrominance to reduce cross noise artifacts. The TW2868 adopts the image enhancement techniques, such as IF compensation filter, CTI and programmable peaking. TW2868 also includes one NTSC/PAL video encoder with two 10 bit DAC’s to support CVBS and YC output. The TW2868 also includes audio CODEC, which has ten audio Analog-toDigital converter processing and one Digital-toAnalog converter. A built-in audio controller can generate digital outputs for recording/mixing and accepts digital input for playback.
• Accepts all NTSC M/4.43 / PAL B/D/G/H/I/K/L/M/N/60 /SECAM standards with auto detection
• Integrated eight video analog anti-aliasing filters and 10 bit CMOS ADCs
• Automatic white peak control
• Programmable hue, saturation, contrast, brightness and sharpness
• Proprietary fast video locking system
• Supports ITU-R BT.656 type time multiplexed output with 54/108MHz
• Provides simultaneous 2x four channel Full D1 with 108MHz and 2x CIF with 54MHz by timemultiplexed output format
• Integrated ten audio ADC processing and one audio DAC
• Provides multi-channel audio mixed analog output
• Supports I2S/DSP Master/Slave interface for record output and playback input
• PCM 8/16 bit and u-Law/A-Law 8bit for audio word length
• Programmable audio sample rate that covers popular frequencies of 8/16/32/44.1/48kHz
• Supports a two-wire serial host interface
• Integrated one video encoder and two10bit video CMOS DACs.
• Integrated clock PLL for 108MHz clock output.
• Ultra low power consumption Typical 867.36mW
• 128 pin LQFP package
• High performance adaptive 4H comb filters for all NTSC/PAL standards
• IF compensation filter for improvement of color demodulation
• Color Transient Improvement CTI

August 9, 2011 FN7796.0

CAUTION These devices are sensitive to electrostatic discharge follow proper IC Handling Procedures. 1-888-INTERSIL or 1-888-468-3774 | Copyright Intersil Americas Inc. All Rights Reserved

Intersil and design is a trademark owned by Intersil Corporation or one of its subsidiaries.

All other trademarks mentioned are the property of their respective owners.

TW2868

Block Diagram

Video, Clock and Host Interface

VIN1 VIN2 VIN3 VIN4 VIN5 VIN6 VIN7 VIN8

AADDCC
4H Comb Video Decoder
4H Comb Video Decoder
4H Comb Video Decoder
4H Comb Video Decoder
4H Comb Video Decoder
4H Comb Video Decoder
4H Comb Video Decoder
4H Comb Video Decoder

VYOUT VCOUT

Digital Video Encoder

Host Interface

Clock PLL Clock

Mux Interface

MPP Interface

Generator

VD1[7:0] VD2[7:0] VD3[7:0] VD4[7:0]

MPP1 MPP2 MPP3 MPP4 MPP5 MPP6 MPP7 MPP8

CLKPO XTO XTI CLKNO

SCLK SDAT IRQ

ENCLK

ED[7:0]

More datasheets: DSB2I40SB | 94560-132 | 94560-142 | 94560-111 | 94560-141 | 94560-122 | 94560-112 | 1240-030A-1N | 1240-015D-3L | TW2868-LA1-CR

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Datasheet ID: TW2868-LA2-CR 639221