AD1980JST Analog Devices Inc, AD1980JST Datasheet
AD1980JST
Specifications of AD1980JST
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AD1980JST Summary of contents
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FEATURES AC ’97 2.3 COMPATIBLE FEATURES 6 DAC Channels for 5.1 Surround S/PDIF Output Integrated Stereo Headphone Amplifier Variable Rate Audio Double Rate Audio ( kHz) S Greater than 90 dB Dynamic Range 20-Bit PCM DACs Line-Level ...
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AD1980–SPECIFICATIONS STANDARD TEST CONDITIONS, UNLESS OTHERWISE NOTED Temperature 25°C Digital Supply ( Analog Supply ( Sample Rate ( kHz S Input Signal 1008 Hz Analog Output Pass Band 20 Hz ...
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Parameter ANALOG-TO-DIGITAL CONVERTERS Resolution Total Harmonic Distortion (THD) AV Dynamic Range (–60 dB Input THD + N Referenced to FS, A-Weighted 5 Signal-to-Intermodulation Distortion * ADC Crosstalk Line Inputs (Input L, Ground R, Read R; Input ...
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AD1980 Parameter PR[K:I] 2 POWER-DOWN STATES Fully Active 000 ADC 000 FRONT DAC 000 SURROUND DAC 010 CENTER/LFE DAC 101 ADC + ALL DACs 111 Mixer 000 ADC + Mixer 000 ALL DACs + Mixer 111 ADC + ALL DACs ...
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RESET BIT_CLK SDATA_IN Figure 1. Cold Reset Timing (Codec is Supplying the Bit_CLK Signal) SYNC BIT_CLK t CLK_LOW BIT_CLK t CLK_HIGH t CLK_PERIOD t SYNC_LOW SYNC t SYNC_HIGH t SYNC_PERIOD Figure 3. Clock Timing BIT_CLK t RISECLK SYNC t RISESYNC ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Model Temperature Range AD1980JST 0°C to 70°C *ST = Low Profile Quad Flatpack CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection ...
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Pin Number Mnemonic DIGITAL INPUT/OUTPUT 2 XTL_IN 3 XTL_OUT 5 SDATA_OUT 6 BIT_ CLK 8 SDATA_IN 10 SYNC RESET 11 48 SPDIF CHIP SELECTS/CLOCK STRAPPING ID0 45 ID1 46 JACK SENSE AND EAPD 47 EAPD 17 JS0 16 JS1 ANALOG ...
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AD1980 Pin Number Mnemonic POWER AND GROUND SIGNALS ...
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Reg Name D15 D14 D13 00h Reset X SE4 SE3 02h Master Volume MM X LMV5 04h Headphone HPM X LHV5 Volume 06h Mono Volume MVM X X 0Ch Phone Volume PHM X X 0Eh Mic Volume MCM X X ...
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AD1980 Reg No. Name D15 D14 D13 D12 00h Reset X SE4 SE3 SE2 NOTES All registers not shown and bits containing an X are assumed to be reserved. Writing any value to this register performs a register reset, which ...
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Reg No. Name D15 D14 D13 04h Headphones HPM X LHV5 LHV4 LHV3 LHV2 LHV1 LHV0 HPRM* X Volume *For AC ’97 compatibility, Bit D7 is available only by setting the MSPLT bit, Register 76h. The MSPLT bit enables separate ...
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AD1980 Reg No. Name D15 D14 D13 0Ch Phone_in Volume PHM X X All registers not shown and bits containing an X are assumed to be reserved. Refer to Table III for examples. PHV[4:0] Phone Volume. Allows setting the Phone ...
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Reg No. Name D15 D14 D13 D12 10h Line-In Volume LVM X X LLV4 LLV3 LLV2 LLV1 LLV0 LVRM* X *For AC ’97 compatibility, Bit D7 is available only by setting the MSPLT bit, Register 76h. The MSPLT bit enables ...
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AD1980 Reg No. Name D15 D14 D13 D12 18h PCM Out Volume LOV4 LOV3 LOV2 LOV1 LOV0 OMRM* X *For AC ’97 compatibility, Bit D7 is available only by setting the MSPLT bit, Register 76h. The MSPLT ...
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LS [10:8] 000 001 010 011 100 101 110 111 Reg No. Name D15 D14 D13 D12 1Ch Record Gain *For AC ’97 compatibility, Bit D7 is available only by setting the MSPLT bit, Register 76h. ...
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AD1980 Reg No. Name D15 D14 D13 20h General-Purpose This register should be read before writing to generate a mask for only the bit(s) that need to be changed. All registers not shown and bits containing an ...
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Reg No. Name D15 D14 26h Power-Down EAPD PR6 Control/Status The ready bits are read only; writing to REF, ANL, DAC, ADC will have no effect. These bits indicate the status for the AD1980 subsections. If the bit is a ...
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AD1980 PR0 = 1 NORMAL PR0 = 0 AND ADC = 1 READY = 1 Figure 8. One Example of AC ‘97 Power-Down/Power-Up Flow Reg No. Name D15 D14 D13 D12 D11 28h Ext’d Audio ID1 ID0 X X The ...
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Extended Audio Status and Control Register (Index 2Ah) Reg No. Name D15 D14 D13 D12 D11 D10 2Ah Extended Audio VFORCE X PRK PRJ PRI SPCV X Stat/Ctrl The extended audio status and control register is a read/write register that ...
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AD1980 AC ’97 2.2 AMAP Compliant Default SPDIF Slot Assignments Codec ID Function 00 2-Ch Primary w/SPDIF 00 4-Ch Primary w/SPDIF 00 6-Ch Primary w/SPDIF 01 +2-Ch Secondary w/SPDIF 01 +4-Ch Secondary w/SPDIF 10 +2-Ch Secondary w/SPDIF 10 +4-Ch Secondary ...
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Reg No. Name D15 D14 D13* D12 36h Center/LFE LM X LFE5 LFE4 Volume All registers not shown and bits containing an X are assumed to be reserved. Refer to Table VII for examples. This register controls the LFE output ...
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AD1980 Left Surround D[13:8] Right Surround D[5:0] D15/D7 WRITE READBACK 0 00 0000 00 0000 0 00 1111 00 1111 0 01 1111 01 1111 0 1x xxxx 01 1111 1 xx xxxx xx xxxx Reg No. Name D15 D14 ...
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Reg No. Name D15 D14 D13 60h EQ CTRL EQM X X All registers not shown, and bits containing an X are assumed to be reserved. Register 60h is a read/write register that controls the Equalizer functionality and data setup. ...
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AD1980 Reg No. Name D15 D14 D13 D12 62h EQ DATA CFD15 CFD14 CFD13 CFD12 CFD11 CFD10 CFD9 CFD8 CFD7 CFD6 CFD5 CFD4 CFD3 CFD2 CFD1 CFD0 0000h This read/write register is used to transfer EQ biquad coefficients into memory. ...
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REF JS1 JS0 JSMT2 JSMT1 JSMT0 OUT 0 OUT (0) OUT ( OUT ( (1) OUT ( ( OUT (0) OUT ( OUT (0) ...
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AD1980 Reg No. Name D15 D14 D13 74h Serial SLOT16 REGM2 REGM1 REGM0 REGM3 DRF X Configuration All registers not shown and bits containing an X are assumed to be reserved. Note that this register is not reset when the ...
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Reg No. Name D15 D14 D13 D12 76th Misc DACZ AC97NC MSPLT LODIS CLDIS HPSEL DMIX1 DMIX0 SPRD 2CMIC LOSEL SRU VREFH VREFD MBG1MBG0 0000h Control Bits MBG[1:0] MIC Boost Gain Select Register. These two bits allow changing the MIC ...
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AD1980 DMIX[1:0] Down Mix Mode Select. Provides analog down-mixing of the center, LFE, and/or surround channels into the mixer channels. This allows the full content of 5.1 or quad media to be played through stereo headphones or speakers. Note that ...
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Reg No. Name D15 D14 D13 7Ch Vendor ID1 S[7:0] This register is ASCII encoded to A. F[7:0] This register is ASCII encoded to D. Reg No. Name D15 D14 D13 D12 D11 D10 ...
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AD1980 1.45 1.40 1.35 0.15 SEATING 0.05 PLANE ROTATED 90 CCW OUTLINE DIMENSIONS 48-Lead Plastic Quad Flatpack [LQFP] 1.4 mm Thick (ST-48) Dimensions shown in millimeters 1.60 MAX PIN 1 INDICATOR 0.75 0.60 0.45 SEATING PLANE 0.20 0.09 VIEW A ...
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