ch7219a
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general 1. vesa displayport specification version 1.4a 2. hdmi transmitter supports hdmi specification version 2.0 3. hdcp 1.4 and hdcp 2.3 standards 4. supports hdcp repeater mode 5. high dynamic range (hdr) static metadata incorporated 6. dtv profile uncompressed high speed digital interface cta-861-g 7. dsc standard v1.2a decoding capable 8. video color space including rgb at 6/8/10/12 bpc, ycbcr4:4:4 and ycbcr4:2:2 /4:2:0 at 8/10/12 bpc 9. rgb to ycc 4:4:4/4:2:2/4:2:0 and ycc 4:4:4/4:2:2 to ycc 4:2:0 color space conversions implemented 10. digital audio supports up to 8 channel lpcm(16/20/24 bit) with sample rate up to 192khz, compressed audio formats (ac3,dts,dts-hd ma, and dolby mat), hbr audio formats with frame rate up to 1536khz, and 3d audio format with sample rate up to 192khz 11. usb type-c displayport alt-mode to hdmi 2.0 protocol converter ready 12. integrated ra, rd and rp resistors for dfp/ufp to identify connection 13. seamless switch between type-c sbu and displayport aux channel 14. usb power delivery 3.1 on cc communication 15. fast vbus voltage detection module integrated to support frs and charge through functions 16. built-in usb billboard class and usb 2.0 phy to support displayport alt-mode 17. embedded microcontroller, rom and edid buffer 18. firmware update through chrontel proprietary technologies 19. configurable power saving mode and low stand-by current 20. rohs compliant and halogen free package 21. offered in 68 pin qfn package
upstream ( usb-c / dp ) 1. usb type-c port compliant with usb type-c cable and connector specification revision 2.0 2. usb pd 3.1 compliant 3. compliant with displayport alternate mode on usb type c standard 4. compliant with vesa displayport specification version 1.4 and and embedded displayport (edp) specification version 1.4 |
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general description |
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chrontel’s ch7219a is a low-cost, low-power semiconductor device that translates the displayport signal to hdmi 2.0 through the usb type-c connector. this innovative usb type-c based displayport receiver with a high performance dsc decoder, an integrated hdmi 2.0 transmitter is specially designed to target the usb type-c to hdmi 2.0 converter, adopter and docking device. through the ch7219a’s advanced decoding / encoding algorithm, the input displayport high-speed serialized multimedia data can be seamlessly converted to hdmi/dvi output. the ch7219a’s dp receiver is compliant with the displayport specification 1.4 and embedded displayport (edp) specification version 1.4. with sophisticated displayport signal detection and the lane swap/aux polarity inversion logic, the ch7219a supports usb type-c cable plug orientation switch. with internal hdcp key integrated, the device supports hdcp 1.4 and 2.3 specifications. in the device’s receiver block, which supports four displayport main link lanes input with data rate running at 1.62gbps, 2.7gbps, 5.4gbps or 8.1gbps, and converted the input signal to hdmi output up to 4k2k@60hz. leveraging the usb power delivery control logic, the usb billboard module for usb device indentify and displayport’s link training routine, the ch7219a is capable of instantly bring up the video display to the hdmi 2.0 tv/monitor when the initialization process is completed. the ch7219a also supports up to 8-channel audio input from dp rx and output from hdmi tx with sample rate up to 192 khz. available audio bandwidth depends on the pixel clock frequency, the video format timing, and whether or not content protection re-synchronization is needed. ch7219a is pin compatible with ch7217a. with sophisticated mcu and the on chip flash, ch7219a support auto-boot and edid buffer. leveraging the firmware auto-loaded from the embedded rom, ch7219a can support dp input detection, hdmi connection detection, and determine to enter into power saving mode automatically. |
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