CH7525 CHRONTEL | Alldatasheet
Document overview
- Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
- PDF pages: 7
Technical content
209-1000-098 Rev 1.1 2021-5-11 1 Chrontel CH7525 4 Lane DisplayPort to HDMI Converter FEATURES GENERAL DESCRIPTION Compliant with DisplayPort Specification version 1.2a and Embedded DisplayPort (eDP) Specification version 1.3 Up to 4 Main Link Lanes at either 1.62Gb/s or 2.7Gb/s (HBR) link rate supported Support color depth 6/8/10/12bits HDMI transmitter compliant with HDMI specification version 1.4b and DVI specification version 1.0 HDMI transmitter supports up to 300 MHz TMDS clock, and supports up to 3.0Gbps data rate for video timing of 1920x1080@120Hz or 4Kx2K@30Hz Supports Enhanced Framing Mode Fast and full Link Training for embedded DisplayPort system Support eDP Authentication: Alternative Scramble Seed Reset and Alternative Framing DisplayPort receiver auto equalization supported for the compensation of input signal attenuation Support Spread Spectrum Clocking (de-spreading) for EMI reduction HDCP engine compliant with HDCP 1.4 specification with internal HDCP Keys On-chip Audio Decoder which support 8 channel Audio input from DP Rx and output from HDMI Tx with sample rate up to 192KHz Embedded MCU to handle the control logic Support device boot up by loading firmware from On Chip Flash automatically Integrated EDID Buffer 2 work modes: connect 27MHz crystal, inject 27MHz clock DP input detection supported Support Auto Power Saving mode and low stand-by current DP AUX channel and IIC slave interface are available for firmware update and debug Low power architecture RoHS compliant and Halogen free package HBM 4KV ESD Performance Offered in 48-Pin QFN package (6 x 6 mm) APPLICATION Notbook/Ultrabook Tablet Device Handheld/Portable Device DP to HDMI cable DP to HDMI Adapter/Docking Station Chrontel’s CH7525 is a low -cost, low -power semiconductor device that translates the DisplayPort signal to HDMI/DVI. This innovative DisplayPort receiver with an integrated HDMI Transmitter is specially designed to target the notebook/ultrabook, tablet device and PC market segments. Through the CH7525’s advanced decoding / encoding algorithm, the input DisplayPort high-speed serialized multimedia data can be seamlessly converted to HDMI/DVI output. The CH7525’s DP/eDP receiver is compliant with the DisplayPort Specification 1.2a and the Embedded DisplayPort Specification version 1. 3. With internal HDCP k ey Integrated, the device support HDCP 1. 4 specifications. In the device’s receiver block, which supports four DisplayPort Main Link Lanes input with data rate running at either 1.62Gb/s or 2.7Gb/s, can accept RGB digital formats in either 18 bit or 24 -bit, and converted the input signal to HDMI output up to 1920x1080@120Hz or 3840x2160@30Hz. Leveraging the DisplayPort’s unique source/sink “Link Training” routine, the CH7525 is capable of instantly bring up the video display to the HDMI/DVI TV/Monitor when the initialization process is completed. The CH7525 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. With sophisticated MCU and the On Chip Flash, CH7525 support auto-boot and EDID buffer. Leveraging the firmware auto -loaded from Flash, CH7525 can support DP input detection and determine to e nter into Power saving mode automatically.
2 209-1000-098 Rev 1.1 2021-5-11 TMDS HPD_IN AUX DDC HPD_OUT DisplayPort Main Link x 4 HPD Generator DisplayPort Main Stream Rx Audio FIFO HDCP MCU & EDID Buffer Video FIFO HPD Receiver HDMI 1.4b Tx HDCP SPC/SPD GPIOs Ref Clock Generator Equalizer On Chip Flash Figure 1: CH7525 Functional Block Diagram
209-1000-098 Rev 1.1 2021-5-11 3
1.0 PIN-OUT
1.1 Package Diagram
HPD_HM GPIO0 GPIO1 DDC_SCL DDC_SDA GPIO2 GPIO3 AVCCPLL TXC TX1B VSSH TX0B TX2 TX2B TX1 TX0 VDDH VSSH TXCB HPD_DP AUXN AUXP XO XI VDDS AVCC RBIAS DVDD DGND SPC SPD Figure 2: CH7525 48-Pin QFN Pin Out
4 209-1000-098 Rev 1.1 2021-5-11
1.2 Pin Description
Table 1: Pin Name Descriptions Pin # Type Symbol Description
2 Out DDC_SCL Serial Port Clock Output to HDMI Receiver
The pin should be connected to clock signal of HDMI DDC. This pin requires a pull-up 1.8 kΩ resistor to the desired voltage level
3 In/Out DDC_SDA Serial Port Data to HDMI Receiver
The pin should be connected to data signal of HDMI DDC. This pin requires a pull-up 1.8 kΩ resistor to the desired voltage level
4 In HPD_HM HDMI Transmitter Hot Plug Input
5~8 In/Out GPIO[3:0] General Purpose Input/Output
9 In RB Reset* Input (Internal pull-up)
When this pin is low, the device is held in the power-on reset condition. When this pin is high, reset is controlled through the serial port register. 14,15 Out TXCB,TXC HDMI Tx Clock Outputs These pins provide the differential clock output for the DVI . 17,18 Out TX0B,TX0 HDMI Tx Data Channel 0 Outputs These pins provide the TMDS differential outputs for data channel 0 20,21 Out TX1B,TX1 HDMI Tx Data Channel 1 Outputs These pins provide the TMDS differential outputs for data channel 1 23,24 Out TX2B,TX2 HDMI Tx Data Channel 2 Outputs These pins provide the TMDS differential outputs for data channel 2
28 In/out SPD Serial Port Data Input / Output
This pin functions as the bi-directional data pin of the serial port. External pull-up 6.8 K resister is required
29 In SPC Serial Port Clock Input
This pin functions as the clock pin of the serial port. External pull-up
6.8 K resister is required
30 Out XO Crystal Output
A parallel resonance crystal should be attached between this pin and XI / FIN. However, if an external CMOS clock is attached to XI/FIN, XO should be left open
31 In XI Crystal Input / External Reference Input
A parallel resonance crystal should be attached between this pin and XO. However, an external 3.3V CMOS compatible clock can drive the XI Input 33,34 In/Out AUXP, AUXN AUX Channel Differential Input/Output These two pins are DisplayPort AUX Channel control, which supports a half-duplex, bi-directional AC-coupled differential signal.
35 Out HPD_DP DP Receiver Hot Plug Output
36 Input RBIAS Current Set Resistor Input
This pin sets the basic current for internal circuit. A 10K, 1% tolerance resistor should be connected between this pin and AVSS using short and wide traces 37,38,40, 41,43,44, 46,47 In D[3:0]P/N DP Main Link Differential Line Input These pins accept four AC-coupled differential pairs signals from the DisplayPort transmitter. 1 Power VDDPLL PLL Power Supply (1.2V) 10,27 Power VDDS Digital Serializer Power Supply (1.2V) 11,26 Power DVDD Digital Core/IO Power Supply (1.2V) 12,25 Power DGND Digital Ground
209-1000-098 Rev 1.1 2021-5-11 5 13 Power AVCCPLL PLL Power Supply (3.3V) 16,22 Power VSSH HDMI Tx Ground 19 Power VDDH HDMI Tx Power Supply (3.3V) 32 Power AVCC Analog Power Supply (3.3V) 39,45 Power AVDD Analog Power Supply (1.2V) 42, Thermal Pad Power AGND Analog Ground
48 Power GNDPLL PLL Ground
6 209-1000-098 Rev 1.1 2021-5-11
2.0 PACKAGE DIMENSION
Figure 3: 48 Pin QFN Package Table of Dimensions No. of Leads SYMBOL 48 (6 X 6 mm) A B C D E F G H I Milli- meters MIN 5.90 4.35 4.35 0.4 0.13 0.30 0.70 0 0.20 Notes: Conforms to JEDEC standard JESD-30 MO-220.
209-1000-098 Rev 1.1 2021-5-11 7 Disclaimer This document provides technical information for the user. Chrontel reserves the right to make changes at any time without notice to improve and supply the best possible product and is not responsible and do es not assume any liability for misapplication or use outside the limits specified in this document. CHRONTEL warrants each part to be free from defects in material and workmanship for a period of one (1) year from date of shipment. Chrontel assumes no liability for errors contained within this document . The customer should make sure that they have the most recent data sheet version. Customers should take appropriate action to ensure their use of the products does not infringe upon any patents. Chronte l, Inc. respects valid patent rights of third parties and does not infringe upon or assist others to infringe upon such rights. Chrontel PRODUCTS ARE NOT AUTHORIZED FOR AND SHOULD NOT BE USED WITHIN LIFE SUPPORT SYSTEMS OR NUCLEAR FACILITY APPLICATIONS WI THOUT THE SPECIFIC WRITTEN CONSENT OF Chrontel. Life support systems are those intended to support or sustain life and whose failure to perform when used as directed can reasonably expect to result in personal injury or death.
ORDERING INFORMATION
Part Number Package Type Content Protection Operating Temperature Range Minimum Order Quantity CH7525A-BF 48 QFN, Lead-free None Commercial : 0 to 70C 490/Tray CH7525A-BFK 48 QFN, Lead-free HDCP 1.4 Commercial : 0 to 70C 490/Tray CH7525A-BFI 48 QFN, Lead-free None Commercial : -40 to 85C 490/Tray CH7525A-BFIK 48 QFN, Lead-free HDCP 1.4 Commercial : -40 to 85C 490/Tray Chrontel www.chrontel.com E-mail: sales@chrontel.com 2021 Chrontel - All Rights Reserved.