PDF TW2867 Data sheet ( Hoja de datos )

Número de pieza	TW2867
Descripción	4-Channel Video Decoders and Audio Codecs
Fabricantes	Techwell
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No Preview Available ! TW2867 4-Channel Video Decoders and Audio Codecs For Security Application Preliminary Data Sheet from Techwell, Inc. Information may change without notice Disclaimer This document provides technical information for the user. Techwell Inc. reserves the right to modify the information in this document as necessary. The customer should make sure that they have the most recent data sheet version. Techwell Inc. holds no responsibility for any errors that may appear in this document. Customers should take appropriate action to ensure their use of the products does not infringe upon any patents. Techwell Inc. respects valid patent rights of third parties and does not infringe upon or assist others to infringe upon such rights. Techwell, Inc. www.techwellinc.com 1 12/18/2009 Datasheet Rev. 0.2 Free Datasheet http://www.datasheet4u.com/ 1 page TW2867 4-Channel Video Decoders and Audio Codecs for Security Application Audio ADC Digital Input Offset Control .....................................................................................86 0xB3 – Audio ADC Digital Input Offset Control........................................................................86 0xB4 – Audio ADC Digital Input Offset Control.........................................................................86 0xB5 – Audio ADC Digital Input Offset Control.........................................................................86 0xB6 – Audio ADC Digital Input Offset Control.........................................................................86 0xB7 – Audio ADC Digital Input Offset Control.........................................................................87 0x75 – Audio ADC Digital Input Offset Control ........................................................................87 0x76 – Audio ADC Digital Input Offset Control .........................................................................87 Analog Audio ADC Digital Output Value ...................................................................................88 0xB8 – Analog Audio ADC Digital Output Value .......................................................................88 0xB9 – Analog Audio ADC Digital Output Value .......................................................................88 0xBA – Analog Audio ADC Digital Output Value ......................................................................88 0xBB – Analog Audio ADC Digital Output Value ......................................................................88 0xBC – Analog Audio ADC Digital Output Value ......................................................................88 0x77 – Analog Audio ADC Digital Output Value.......................................................................89 0x78 – Analog Audio ADC Digital Output Value........................................................................89 Adjusted Analog Audio ADC Digital Input Value .......................................................................90 0xBD – Adjusted Analog Audio ADC Digital Input Value..........................................................90 0xBE – Adjusted Analog Audio ADC Digital Input Value ..........................................................90 0xBF – Adjusted Analog Audio ADC Digital Input Value ..........................................................90 0xC0 – Adjusted Analog Audio ADC Digital Input Value...........................................................90 0xC1 – Adjusted Analog Audio ADC Digital Input Value...........................................................90 0x79 – Adjusted Analog Audio ADC Digital Input Value ..........................................................91 0x7A – Adjusted Analog Audio ADC Digital Input Value ..........................................................91 MPP Pin Output Mode Control ....................................................................................................92 0xC8 – MPP Pin Output Mode Control........................................................................................92 0xC9 – MPP Pin Output Mode Control........................................................................................94 0xCA – Video Channel Output Control .......................................................................................95 0xCB – Four Channel CIF Time-multiplexed Format ..................................................................96 0xCC – 2nd Channel Selection ....................................................................................................97 0xCD – 1st Channel Selection .....................................................................................................98 0xCE – Analog Power Down Control ..........................................................................................99 0xCF – Serial Mode Control ........................................................................................................99 0xD0, 0xD1, 0x7F - Analog Audio Input Gain ..........................................................................100 0xD2 – Number of Audio to be Recorded ..................................................................................101 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9, 0xDA – Sequence of Audio to be Recorded.....102 0xDB –Master Control...............................................................................................................103 u-Law/A-Law Output and Mix Mute Control.............................................................................104 0xDC –u-Law/A-Law Output and Mix Mute Control ................................................................104 0x7E – MIX_MUTE_A5 ...........................................................................................................105 Mix Ratio Value ........................................................................................................................106 Techwell, Inc. www.techwellinc.com 5 12/18/2009 Datasheet Rev. 0.2 Free Datasheet http://www.datasheet4u.com/ 5 Page TW2867 4-Channel Video Decoders and Audio Codecs for Security Application Pin Description Analog Video/Audio Interface Pins Name VIN1A VIN1B VIN2A VIN2B VIN3A VIN3B VIN4A VIN4B NC NC RTERM AIN1 AIN2 AIN3 AIN4 AIN5 AINN AOUT Number 13 14 17 18 21 22 25 26 29 32 31 6 7 8 9 10 5 2 Type A A A A A A A A A A A A A A A A A A Description Composite video input A of channel 1. Composite video input B of channel 1. Composite video input A of channel 2. Composite video input B of channel 2. Composite video input A of channel 3. Composite video input B of channel 3. Composite video input A of channel 4. Composite video input B of channel 4. Not Connected Not Connected Analog video resistance term. Audio input of channel 1. Audio input of channel 2. Audio input of channel 3. Audio input of channel 4. Audio input of channel 5. Audio input negative control. Audio mixing output. Techwell, Inc. www.techwellinc.com 11 12/18/2009 Datasheet Rev. 0.2 Free Datasheet http://www.datasheet4u.com/ 11 Page

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