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1、256M Double Data Rate Synchronous DRAM A3S56D30FTP A3S56D40FTP PIN FUNCTION CLK, /CLKInput Clock: CLK and /CLK are differential clock inputs. All address and control input signals are sampled on the crossing of the positive edge of CLK and negative edge of /CLK. Output (read) data is referenced to t
2、he crossings of CLK and /CLK (both directions of crossing). CKEInput Clock Enable: CKE controls Power Down and Self Refresh. Taking CKE LOW provides Precharge Power Down or Self Refresh (all banks idle), or Active Power Down (row active in any bank). Taking CKE HIGH provides Power Down exit or Self
3、Refresh exit. After Self Refresh is started, CKE becomes asynchronous input. Power Down and Self Refresh is maintained as long as CKE is LOW. /CSInputChip Select: When /CS is HIGH, any command means No Operation. /RAS, /CAS, /WEInputCombination of /RAS, /CAS, /WE defines basic commands. A0-12Input A
4、0-12 specify the Row / Column Address in conjunction with BA0,1. The Row Address is specified by A0-12. The Column Address is specified by A0-9(x8) and A0-8(x16). A10 is also used to indicate precharge option. When A10 is HIGH at a Read / Write command, an Auto Precharge is performed. When A10 is HI
5、GH at a Precharge command, all banks are precharged. BA0,1Input DQ0-7 (x8), DQ0-15 (x16), Input / Output DQS (x8) Vdd, VssPower SupplyPower Supply for the memory array and peripheral circuitry. VddQ, VssQPower SupplyVddQ and VssQ are supplied to DQ, DQS buffers. Bank Address: BA0,1 specifies one of
6、four banks to which a command is applied. BA0,1 must be set with Active, Precharge, Read, Write commands. Data Input/Output: Data bus Data Strobe: Output with read data, input with write data. Edge-aligned with read data, centered in write data. Used to capture write data. For the x16, LDQS correspo
7、nds to the data on DQ0-DQ7; UDQS correspond to the data on DQ8-DQ15 SYMBOLTYPEDESCRIPTION DM (x8)Input Input Data Mask: DM is an input mask signal for write data. Input data is masked when DM is sampled HIGH along with that input data during a write access. DM is sampled on both edges of DQS. Althou
8、gh DM pins are input only, the DM loading matches the DQ and DQS loading. For the x16, LDM corresponds to the data on DQ0-DQ7; UDM corresponds to the data on DQ8-DQ15. Input / Output VREFInputSSTL_2 reference voltage. UDQS, LDQS (x16) UDM, LDM (x16) AVR 2650 AVR 2650 harman/kardonharman/kardon Radio
9、Fans.CN 12-Bit, 170 MHz Video and Graphics Digitizer with 3D Comb Filter Decoder and Quad HDMI 1.4 Fast Switching Receiver PRELIMINARY ADV7844 FEATURES Quad HDMI 1.4 Fast Switching Receiver 170 MHz Video and Graphics Digitizer 3D Comb Filter Video Decoder SCART Fast Blank Support Adaptive HDMI Equal
10、iser Integrated CEC Controller HDMI Repeater Support Advanced VBI data slicer Video and Graphics Digitizer Four 170 MHz, 12-bit ADCs, 12-channel analog input mux 525i-/625i-component analog input 525p-/625p-component progressive scan support 720p-/1080i-/1080p-component HDTV support Low refresh rate
11、s (24/25/30 Hz) support for 720p/1080p Digitizes RGB graphics up to 1600 1200 at 60 Hz (UXGA) 3D Video Decoder NTSC/PAL/SECAM color standards support NTSC/PAL 2D/3D motion detecting comb filter Advanced time-base correction (TBC) with frame synchronization Interlaced-to-progressive conversion for 52
12、5i and 625i IF compensation filters Vertical peaking and horizontal peaking filters Robust synchronization extraction for poor video source 4:1 HDMI 1.4 225 MHz Receiver Fast-Switching of HDMI ports 2:2 HEAC muxing support 2 HEAC channel support 2 Ethernet Interfaces for HEC Support SPDIF interface
13、for ARC support. 3D Video format support including frame packing 1080p 24Hz, 720p 50 Hz, 720p 60Hz Full colorimetry support including sYCC601, Adobe RGB, Adobe YCC 601 36-/30-bit Deep Color and 24-bit color support HDCP 1.3 support with internal HDCP Keys +5V Detect and Hot plug assert for each HDMI
14、 port Full HDMI Audio Support including HBR, DSD, DST Advanced Audio mute feature Flexible digital audio output interfaces Supports up to 5 SPDIF outputs, Supports up to 4 I2S outputs General Highly flexible 36-bit pixel output interface Internal EDID RAM for HDMI and graphics Dual STDI (standard id
15、entification) function support Any-to-any, 3 3 color space conversion (CSC) matrix 2 programmable interrupt request output pins Simultaneous analog processing and HDMI monitoring APPLICATIONS Advanced TVs PDP HDTVs LCD TVs (HDTV ready) LCD/DLP rear projection HDTVs CRT HDTVs LCoS HDTVs AVR video rec
16、eivers LCD/DLP front projectors HDTV STBs with PVR Projectors FUNCTIONAL BLOCK DIAGRAM 36-BIT YCbCr /RGB ADV7844 SCART RGB + CVBS CVBS YC HDMI 4 HDMI 3 HDMI 2 HDMI 1 HD YPbPr INPUT MUX SD/PS YPbPr SDRAM SCART G SCART B SCART R CVBS CVBS SCART CVBS I2S 36 4 Y/G Pb/B Pr/R 48 GRAPHICS RGB ADC ADC ADC A
17、DC TO AUDIO PROCESSOR TMDS DDC TMDS DDC TMDS DDC TMDS DDC DEEP COLOR HDMI Rx HDCP KEYS SPDIF DSD SDP CLK HS/VS FIELD/DE CLK HS/VS FIELD/DE CLK HS/VS FIELD/DE CVBS 3D YC S-VIDEO SCART CP YPbPr 525p/625p 720p/1080i 1080p/UXGA RGB OUTPUT MUX OUTPUT MUX HBR AUDIO OUTPUT5 MCLK SCLKMCLK SCLK DATA DATA FAS
18、T SWITCH SPDIF HEAC ETHERNET 1 ETHERNET 2 Figure 1. AVR 2650 AVR 2650 harman/kardonharman/kardon 122 ADV7844 PRELIMINARY Rev. PrC| Page 4 of 35 DETAILED FUNCTIONAL BLOCK DIAGRAM ANALOG FRONT END CLAMPADC0 LLC GENERATION CONTROL CONTROL AND DATA SYNC PROCESSING AND CLOCK GENERATION FILTER DDCA_SDA /
19、DDCA_SCL YPrPb CVBS YC SCART RGB RGB AOUT CEC AVLINK 12 CLAMPADC1 12 CLAMPADC2 12 CLAMPADC3 12 12-CHANNEL INPUT MATRIX HS/CS,VS/FIELD TRI1 TO TRI4 SYNC1 SYNC2 HS_IN1 VS_IN1 HS_IN2/TRI5 VS_IN2/TRI6 TRI-LEVEL SLICER SCL SDA CONTROL INTERFACEI2C PLL RXA_C RXB_C RXC_C RXD_C RXA_0 RXA_1 RXA_2 RXB_0 RXB_1
20、 RXB_2 RXC_0 RXC_1 RXC_2 RXD_0 RXD_1 RXD_2 AVLINK CONTROLLER CEC CONTROLLER EDID/ REPEATER CONTROLLER EQUALIZERSAMPLER EQUALIZERSAMPLER EQUALIZERSAMPLER EQUALIZERSAMPLER HDCP BLOCK PACKET PROCESSOR DIGITAL PROCESSING BLOCK COMPONENT PROCESSOR VIDEO DATA PROCESSOR VIDEO OUTPUT FORMATTER INT1 LLC P0 T
21、O P11 P12 TO P23 P24 TO P35 INT2 STANDARD DEFINITION PROCESSOR (SDP) HS/CS VS/FIELD DE SYNC_OUT 12 12 12 MUX PACKET/ INFOFRAME MEMORY 4:2:2 TO 4:4:4 CONVERSION AUDIO PROCESSOR 2D COMB3D COMBTBC MACROVISION DETECTION STANDARD AUTODECTION CTI and LTI VERTICAL PEAKING HORIZONTAL PEAKING FASTBLANK OVERL
22、AY CONTROL DDR/SDR-SDRAM INTERFACE INTERLACE TO PROGRESSIVE CONVERSION COLOR SPACE CONVERSION ANCILLARY DATA FORMATTER I2C READBACK FAST I2C INTERFACE VSI DECODER ACTIVE PEAK AND HSYNC DEPTH NOISE AND CALIBRATION OFFSET ADDER GAIN CONTROL DIGITAL FINE CLAMP PROGRAMMABLE DELAY CP CSC AND DECIMATION F
23、ILTERS AV CODE INSERTION STANDARD IDENTIFICATION SYNC EXTRACT (ESDP) MACROVISION AND CGMS DETECTION SYNC SOURCE AND POLARITY DETECT AUDIO OUTPUT FORMATTER AP0 MCLK SCLK AP1 AP2 AP3 AP4 AP5 FASTSWITCHING BLOCK + HDMI DECODE + MUX RXB_5V / HPDB RXA_5V / HPDA 5V DETECT AND HPD CONTROLLER RXD_5V / HPDD
24、RXC_5V / HPDC HDCP EEPROM DEEP COLOR CONVERSION DDCB_SDA / DDCB_SCL DDCC_SDA / DDCC_SCL DDCD_SDA / DDCD_SCL (A) (B) (C) (A) (B) (C) (D) INTERRUPT CONTROLLER TTX_SDA / TTX_SCL DECIMATION FILTERS HDMI ETHERNET CHANNEL supports TMDS logic level. 48 TXC+ HDMI output Differential Clock Output. Differenti
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