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AC'97 SoundMAX® Codec AD1887 ENHANCED FEATURES Full Duplex Variab
Top Searches for this datasheetAC'97 FEATURES Variable Sample Rate Audio AC'97 FEATURES AC'97 Compliant Greater than Dynamic Range Integrated Stereo Headphone Amplifier Multibit Converter Architecture Improved Ratio Greater than 16-Bit Stereo Full-Duplex Codec Analog Line-Level Stereo Inputs for: LINE-IN Mono Input with Built-In Programmable Preamp High-Quality Input with Ground Sense Power Management Support 48-Terminal TQFP Package AC'97 SoundMAX® Codec AD1887 ENHANCED FEATURES Full Duplex Variable Sample Rates from 7040 with Resolution Software-Enabled VREFOUT Output Microphones External Power Split Power Supplies (3.3 Digital/5 Analog) Mobile Low-Power Mixer Mode Extended 6-Bit Headphone Volume Control Digital Audio Mixer Mode FUNCTIONAL BLOCK DIAGRAM AD1887 PREAMP CHIP SELECT VREF VREFOUT SELECTOR LINE_IN 16-BIT CONVERTER 16-BIT CONVERTER RESET SYNC SAMPLE RATE GENERATORS LINK BIT_CLK SDATA_OUT 16-BIT CONVERTER SDATA_IN SELECTOR HP_OUT_L GAIN ATTENUATE MUTE 16-BIT CONVERTER HP_OUT_R OSCILLATOR XTL_OUT XTL_IN SoundMAX registered trademark Analog Devices, Inc. REV. Information furnished Analog Devices believed accurate reliable. However, responsibility assumed Analog Devices use, infringements patents other rights third parties that result from use. license granted implication otherwise under patent patent rights Analog Devices. Technology Way, P.O. 9106, Norwood, 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 Analog Devices, Inc., 2001 AD1887-SPECIFICATIONS STANDARD TEST CONDITIONS UNLESS OTHERWISE NOTED Temperature 25°C Test Conditions Digital Supply (VDD) Calibrated Analog Supply (VCC) Attenuation Relative Full Scale Sample Rate (fS) Input Input Signal 1008 Output Load (HP_OUT) Analog Output Pass Band Test Conditions Calibrated (CS0, CS1) Gain Input -3.0 Relative Full Scale ANALOG INPUT Parameter Input Voltage (RMS Values Assume Sine Wave Input) LINE_IN, with Gain with Gain Input Impedance* Input Capacitance* HEADPHONE VOLUME 2.83 0.283 2.83 Unit Parameter Step Size -88.5 dB); HP_OUT_R, HP_OUT_L Output Attenuation Range Span* Mute Attenuation Fundamental* PROGRAMMABLE GAIN AMPLIFIER-ADC -94.5 Unit Parameter Step Size 22.5 Gain Range Span ANALOG MIXER-INPUT GAIN/AMPLIFIERS/ATTENUATORS 22.5 Unit Parameter Signal-to-Noise Ratio (SNR) HP_OUT Other HP_OUT Step Size (+12 -34.5 dB): (All Steps Tested) MIC, LINE_IN, Input Gain/Attenuation Range: MIC, LINE_IN, DIGITAL DECIMATION INTERPOLATION FILTERS* -46.5 Unit Parameter Pass Band Pass-Band Ripple Transition Band Stop Band Stop-Band Rejection Group Delay Group Delay Variation over Pass Band *Guaranteed tested. 0.09 12/fS Unit REV. AD1887 ANALOG-TO-DIGITAL CONVERTERS Parameter Resolution Total Harmonic Distortion (THD) Dynamic Range (-60 Input Referenced Full Scale, A-Weighted) Signal-to-Intermodulation Distortion* (CCIF Method) Crosstalk* Line Inputs (Input Ground Read Input Ground Read LINE_IN Other Gain Error (Full-Scale Span Relative Nominal Input Voltage) Interchannel Gain Mismatch (Difference Gain Errors) Offset Error DIGITAL-TO-ANALOG CONVERTERS -100 Unit Bits Parameter Resolution Total Harmonic Distortion (THD) HP_OUT Dynamic Range (-60 Input Referenced Full Scale, A-Weighted) Signal-to-Intermodulation Distortion* (CCIF Method) Gain Error (Full-Scale Span Relative Nominal Input Voltage) Interchannel Gain Mismatch (Difference Gain Errors) Crosstalk* (Input Zero Measure R_OUT; Input Zero Measure L_OUT) Total Audible Out-of-Band Energy (Measured from kHz)* ANALOG OUTPUT -100 Unit Bits Parameter Full-Scale Output Voltage; HP_OUT Output Impedance* External Load Impedance* Output Capacitance* External Load Capacitance VREF VREF_OUT VREF_OUT Current Drive Mute Click (Muted Output Minus Unmuted Midscale Output) STATIC DIGITAL SPECIFICATIONS 2.83 Unit 2.45 2.05 2.25 2.25 Parameter High-Level Input Voltage (VIH): Digital Inputs Low-Level Input Voltage (VIL) High-Level Output Voltage (VOH), Low-Level Output Voltage (VOL), Input Leakage Current Output Leakage Current POWER SUPPLY 0.65 DVDD DVDD Unit 0.35 DVDD DVDD Parameter Power Supply Range-Analog (AVDD) Power Supply Range-Digital (DVDD) Power Dissipation-5 V/3.3 Analog Supply Current-5 (AVDD) Digital Supply Current-3.3 (DVDD) Power Supply Rejection (100 Signal kHz)* Both Analog Digital Supply Pins, Both ADCs DACs) *Guaranteed tested. 4.75 3.15 5.25 3.45 Unit REV. AD1887-SPECIFICATIONS CLOCK SPECIFICATIONS* Parameter Input Clock Frequency Recommended Clock Duty Cycle POWER-DOWN STATES 24.576 Unit Parameter Mixer (Analog Mixer Mixer Mixer Mixer Analog Only (AC-Link Analog Only (AC-Link Off) Standby Headphone Standby *Guaranteed tested. Specifications subject change without notice. Bits PR1, LPMIX, PR1, PR2, PR2, PR2, PR1, LPMIX, PR5, PR1, LPMIX, PR1, PR0, PR4, PR5, PR4, PR3, PR2, PR1, DVDD 15.82 15.08 3.79 3.85 17.65 15.70 15.07 3.80 3.85 0.06 0.06 17.66 AVDD 30.0 26.3 19.9 18.1 17.4 11.1 18.1 18.1 26.1 Unit TIMING PARAMETERS (GUARANTEED OVER OPERATING TEMPERATURE RANGE) Parameter RESET Active Pulsewidth RESET Inactive BIT_CLK Startup Delay SYNC Active High Pulsewidth SYNC Pulsewidth SYNC Inactive BIT_CLK Startup Delay BIT_CLK Frequency BIT_CLK Period BIT_CLK Output Jitter* BIT_CLK High Pulsewidth BIT_CLK Pulsewidth SYNC Frequency SYNC Period Setup Falling Edge BIT_CLK Hold from Falling Edge BIT_CLK BIT_CLK Rise Time BIT_CLK Fall Time SYNC Rise Time SYNC Fall Time SDATA_IN Rise Time SDATA_IN Fall Time SDATA_OUT Rise Time SDATA_OUT Fall Time Slot BIT_CLK, SDATA_IN Setup Trailing Edge RESET (Applies SYNC, SDATA_OUT) Rising Edge RESET HI-Z Delay Propagation Delay RESET Rise Time Output Valid Delay from Rising Edge BIT_CLK Valid *Output jitter directly dependent crystal input jitter. Specifications subject change without notice. Symbol tRST_LOW tRST2CLK tSYNC_HIGH tSYNC_LOW tSYNC2CLK tCLK_PERIOD tCLK_HIGH tCLK_LOW tSYNC_PERIOD tSETUP tHOLD tRISECLK tFALLCLK tRISESYNC tFALLSYNC tRISEDIN tFALLDIN tRISEDOUT tFALLDOUT tS2_PDOWN tSETUP2RST tOFF 162.8 19.5 Unit 162.8 12.288 81.4 32.56 32.56 48.0 20.8 48.84 48.84 REV. AD1887 tRST_LOW RESET BIT_CLK tRST2CLK tRISECLK SYNC tFALLCLK BIT_CLK Figure Cold Reset tRISESYNC SDATA_IN tFALLSYNC tSYNC_HIGH SYNC BIT_CLK tRST2CLK SDATA_OUT tRISEDIN tFALLDIN tRISEDOUT tFALLDOUT Figure Warm Reset Figure Signal Rise Fall Time tCLK_LOW SYNC SLOT SLOT BIT_CLK tCLK_HIGH tCLK_PERIOD BIT_CLK tSYNC_LOW SYNC SDATA_OUT WRITE 0x26 DATA DON'T CARE tS2_PDOWN tSYNC_HIGH tSYNC_PERIOD SDATA_IN NOTE: BIT_CLK SCALE Figure Clock Timing Figure Link Power Mode Timing tSETUP RESET BIT_CLK SDATA_OUT SYNC SDATA_OUT SDATA_IN, BIT_CLK tSETUP2RST HI-Z tHOLD tOFF Figure Data Setup Hold Figure Test Mode REV. AD1887 ABSOLUTE MAXIMUM RATINGS* ORDERING GUIDE Parameter Power Supplies Digital (DVDD) Analog (AVCC) Input Current (Except Supply Pins) Analog Input Voltage (Signal Pins) Digital Input Voltage (Signal Pins) Ambient Temperature (Operating) Storage Temperature -0.3 -0.3 -0.3 -0.3 +3.6 +6.0 10.0 AVDD DVDD +150 Unit Model Temperature Range Package Description Package Option AD1887JST 70°C Thin-Quad Flatpack ST-48 ENVIRONMENTAL CONDITIONS *Stresses greater than those listed under Absolute Maximum Ratings cause permanent damage device. This stress rating only; functional operation device these other conditions above those indicated operational section this specification implied. Exposure absolute maximum rating conditions extended periods affect device reliability. Ambient Temperature Rating TAMB TCASE TCASE Case Temperature Power Dissipation Thermal Resistance (Case-to-Ambient) Thermal Resistance (Junction-to-Ambient) Thermal Resistance (Junction-to-Case) Package TQFP 76.2°C/W 17°C/W 59.2°C/W CAUTION (electrostatic discharge) sensitive device. Electrostatic charges high 4000 readily accumulate human body test equipment discharge without detection. Although AD1887 features proprietary protection circuitry, permanent damage occur devices subjected high-energy electrostatic discharges. Therefore, proper precautions recommended avoid performance degradation loss functionality. WARNING! SENSITIVE DEVICE CONFIGURATION HP_OUT_R HP_OUT_L AVDD3 AVDD2 AVSS3 AVSS2 DVDD1 XTL_IN XTL_OUT DVSS1 SDATA_OUT BIT_CLK DVSS2 SDATA_IN DVDD2 SYNC RESET IDENTIFIER FILT_L FILT_R AFILT2 AFILT1 VREFOUT VREF AVSS1 AVDD1 AD1887 VIEW (Not Scale) CD_GND_REF LINE_IN_L CD_R MIC_IN CONNECT LINE_IN_R CD_L REV. AD1887 FUNCTION DESCRIPTIONS Digital Name XTL_IN XTL_OUT SDATA_OUT BIT_CLK SDATA_IN SYNC RESET Chip Selects TQFP Description Crystal Clock) Input, 24.576 Crystal Output AC-Link Serial Data Output, AD1887 Input Stream AC-Link Clock 12288 Serial Data Clock Daisy Chain Output Clock AC-Link Serial Data Input AD1887 Output Stream AC-Link Frame Sync AC-Link Reset AD1887 Master Reset Name Analog TQFP Type Description Chip Select Input (Active Low) Chip Select Input (Active Low) These signals connect AD1887 component analog sources sinks, including microphones speakers Name CD_L CD_GND_REF LINE_IN_L LINE_IN_R HP_OUT_L HP_OUT_R Filter/Reference TQFP Description Audio Left Channel Audio Analog Ground Reference Differential Input Audio Right Channel Microphone Input Line Left Channel Line Right Channel Headphones Left Channel Headphones Right Channel These signals connected resistors, capacitors, specific voltages Name VREF VREFOUT AFILT1 AFLIT2 FILT_R FILT_L TQFP Description Voltage Reference Filter Voltage Reference Output Drive (Intended Bias) Antialiasing Filter Capacitor-ADC Right Channel Antialiasing Filter Capacitor-ADC Left Channel AC-Coupling Filter Capacitor-ADC Right Channel AC-Coupling Filter Capacitor-ADC Left Channel Power Ground Signals Name DVDD1 DVSS1 DVSS2 DVDD2 AVDD1 AVSS1 AVDD2 AVSS2 AVDD3 AVSS3 TQFP Type Description Digital Digital Digital Digital Analog Analog Analog Analog Analog Analog REV. AD1887 Connects Name TQFP Type Description Connect Connect Connect Connect Connect Connect Connect Connect Connect Connect Connect Connect Connect Connect Connect Indexed Control Registers 00Eh Name Reset Headphones Volume Reserved Volume Line-In Volume Volume Record Select Record Gain General-Purpose Power-Down Ctrl/Stat Ext'd Audio Ext'd Audio Stat/Ctrl SR14 LHV5 SR13 LHV4 LLV4 LCV4 LOV4 SR12 LHV3 LLV3 LCV3 LOV3 LIM3 SR11 LHV2 LLV2 LCV2 LOV2 LIM2 SR10 LHV1 LLV1 LCV1 LOV1 LIM1 LHV0 LLV0 LCV0 LOV0 LIM0 RHV5 RHV4 MCV4 RLV4 RCV4 ROV4 RHV3 MCV3 RLV3 RCV3 ROV3 RIM3 RHV2 Default 0010h 8000h RHV1 RHV0 MCV2 MCV1 MCV0 8008h RLV2 RCV2 ROV2 RIM2 RLV1 RLV0 8808h 8808h 8808h 0000h 8000h 0000h 000Xh 0005h 0000h BB80h RCV1 RCV0 ROV1 ROV0 RIM1 RIM0 LPBK 2Ch/ Rate (SR1) SR15 (7Ah)* 32h/ Rate (SR0) SR15 (78h)* Serial Configuration SR14 SR13 SR12 SR11 SR10 BB80h SLOT16 REGM2 REGM1 REGM0 7000h Misc Control Bits DACZ LPMIX DLSR ALSR SRX10 SRX8 REV5 DRSR ARSR 0404h Vendor Vendor REV4 REV3 REV2 REV1 REV0 4144h 5362h REV7 REV6 NOTES registers shown bits containing assumed reserved. register addresses aliased next lower even address. Reserved registers should written. Zeros should written reserved bits. *Indicates Aliased register AD1819, AD1819A backward compatibility. REV. AD1887 Reset (Index 00h) Name Reset Default 0010h Note: Writing value this register performs register reset, which causes registers revert their default values (except 74h, which forces serial configuration). Reading this register returns code part code type Stereo Enhancement. ID[9:0] Identify Capability. decodes capabilities AD1887 based following: SE[4:0] Function Dedicated Channel Modem Line Codec Support Bass Treble Control Simulated Stereo (Mono Stereo) Headphone Support Loudness (Bass Boost) Support 18-Bit Resolution 20-Bit Resolution 18-Bit Resolution 20-Bit Resolution AD1887* *The AD1887 contains none optional features identified these bits. Stereo Enhancement. stereo enhancement identifies Analog Devices stereo enhancement. Headphones Volume Registers (Index 04h) Name Default Headphones Volume LHV5 LHV4 LHV3 LHV2 LHV1 LHV0 RHV5 RHV4 RHV3 RHV2 RHV1 RHV0 8000h RHV[5:0] LHV[5:0] Right Headphone Volume Control. least significant represents This register controls output from maximum attenuation -88.5 Left Headphone Volume Control. least significant represents This register controls output from maximum attenuation -88.5 Headphones Volume Mute. When this "1," channel muted. xHV5 xHV0 0000 1111 1111 xxxx Function Gain -40.5 Attenuation -88.5 Attenuation Attenuation REV. AD1887 Volume (Index 0Eh) Name Volume MCV4 MCV3 MCV2 MCV1 MCV0 Default 8008h MCV[4:0] Volume Gain. Allows setting Volume attenuator steps. represents range -34.5 default value mute enabled. Boost Gain: Amplifies input. Mute. When this "1," channel muted. Line Volume (Index 10h) Volu LLV4 LLV3 LLV2 LLV1 LLV0 RLV4 RLV3 RLV2 RLV1 RLV0 efau 8808h RLV[4:0] LLV[4:0] Right Line Volume. Allows setting Line right channel attenuator steps. represents range -34.5 default value mute enabled. Line Volume Left. Allows setting Line left channel attenuator steps. represents range -34.5 default value mute enabled. Line Mute. When this "1," channel muted. Volume (Index 12h) Volu LCV4 LCV3 LCV2 LCV1 LCV0 efau RCV4 RCV3 RCV2 RCV1 RCV0 8808h RCV[4:0] LCV[4:0] Right Volume. Allows setting right channel attenuator steps. represents range -34.5 default value mute enabled. Left Volume. Allows setting left channel attenuator steps. represents range -34.5 default value mute enabled. Volume Mute. When this "1," channel muted. -10- REV. AD1887 Volume (Index 18h) Volu efau 8808h ROV[4:0] LOV[4:0] Right Volume. Allows setting right channel attenuator steps. represents range -34.5 default value mute enabled. Left Volume. Allows setting left channel attenuator steps. represents range -34.5 default value mute enabled. Volume Mute. When this "1," channel muted. Volume Table (Index 18h) Mute Record Select Control Register (Index 1Ah) Name Record Select 00000 01000 11111 xxxxx Function Gain Gain -34.5 Gain Gain Default 0000h RS[2:0] LS[2:0] Right Record Select Left Record Select Used select record source independently right left. table legend. default value 0000h, which corresponds Record Gain (Index 1Ch) efau 8000h Left Record Source CD_L LINE_IN_L Stereo Mono Right Record Source CD_L LINE_IN_R Stereo Mono RIM[3:0] LIM[3:0] Right Input Mixer Gain Control. Each represents 0000 range 22.5 Left Input Mixer Gain Control. Each represents 0000 range 22.5 Input Mute Unmuted Muted Gain xIM3 xIM0 1111 0000 xxxxx Function 22.5 Gain Gain Gain REV. -11- AD1887 General Purpose Register (Index 20h) pose efau 0000h Note: This register should read before writing generate mask only bit(s) that need changed. function default value 0000h, which off. LPBK Loopback Control. ADC/DAC digital loopback mode. Subsection Ready Register (Index 26h) Name Power-Down Cntrl/Stat Default Note: ready bits read only, writing REF, ANL, DAC, will have effect. These bits indicate status AD1887 subsections. one, that subsection "ready." Ready defined subsection able perform nominal state. PR[5:0] section ready transmit data. section ready accept data. Analog gainuators, attenuators, mixers ready. Voltage References, VREF VREFOUT nominal level. AD1887 Power-Down Modes. first three bits used individually rather than combination with each other. last bit, PR3, used combination with itself. mixer reference cannot powered down unless ADCs DACs also powered down. Nothing else powered until reference Powered-Down Powered-Down Powered-Down Analog Mixer Powered-Down VREF VREFOUT Powered-Down AC-Link Powered-Down Internal Clock Powered-Down Headphone effect unless ADCs, DACs, AC-Link powered down. reference mixer either down, power-up sequences must allowed completion before both set. multiple-codec systems, master codec's bits control slave codec. also effective slave codec master's clear, effect disable PR5. Power-Down State Power-Down DACs Power-Down Power-Down Mixer Power-Down Mixer Power-Down Mixer Power-Down Mixer Power-Down Standby -12- REV. AD1887 Extended Audio Register (Index 28h) efau 0001h Note: Extended Audio read only register. ID[1:0] Variable Rate Audio. indicates support Variable Rate Audio. ID1, 2-bit field which indicates codec configuration: Primary Secondary Extended Audio Status Control Register (Index 2Ah) efau 0000h Note: Extended Audio Status Control Register read/write register that provides status control extended audio features. Variable Rate Audio. indicates support Variable Rate Audio mode (sample rate control registers SLOTREQ signaling). Rate Register (Index 2Ch) SR14 SR13 SR12 SR11 SR10 efau Note: alias 7Ah. register must alias work; zero written then both sample rates reset kHz. SR[15:0] Writing this register allows programming sampling frequency from (1B58h) (BB80h) increments. Programming value outside range 7040 (1b80h) 48000 (bb80h) causes codec saturate. rates, value written register supported that value will echoed back when read, otherwise closest rate supported returned. Rate Register (Index 32h) efau SR15 SR14 SR13 SR12 SR11 SR10 Note: alias 78h. register must alias work; zero written then both sample rates reset kHz. SR[15:0] Writing this register allows programming sampling frequency from (1B58h) (BB80h) increments. Programming value outside range 7040 (1b80h) 48000 (bb80h) causes codec saturate. rates, value written register supported that value will echoed back when read, otherwise closest rate supported returned. REV. -13- AD1887 Serial Configuration (Index 74h) Name Serial Configuration REGM1 REGM0 Default 7000h SLOT REGM2 Note: This register reset when reset register (Register 00h) written. DHWR REGM0 REGM1 REGM2 SLOT16 Disable Hardware Reset. Master Codec Register Mask. Slave Codec Register Mask. Slave Codec Register Mask. Enable 16-bit slots. your system uses only single AD1887, ignore register mask bits. SLOT16 makes Link slots bits length, formatted into slots. Miscellaneous Control Bits (Index 76h) Name LPMIX ALSR Default Misc DACZ Control Bits DLSR SRX10 SRX8 DRSR ARSR 0404h ARSR Right Sample Generator Select Selected (32h) Selected (2Ch) Right Sample Generator Select Selected (32h) Selected (2Ch) Multiply rate 8/7. Multiply rate 10/7. SRX10D7 SRX8D7 mutually exclusive; SRX10D7 priority both set. Modem filter enable (left channel only). Change only when DACs powered down. Left Sample Generator Select Selected (32h) Selected (2Ch) Left Sample Generator Select Selected (32h) Selected (2Ch) Digital Mono Select Mixer Left Right Digital Audio Mode. Outputs bypass analog mixer sent directly codec output. Low-Power Mixer Zero-fill (vs. repeat) starved data. DRSR SRX8D7 SRX10D7 MODEN ALSR DLSR LPMIX DACZ -14- REV. AD1887 Sample Rate (Index 78h) (32h)/78h Name Default Sample SR015 SR014 SR013 SR012 SR011 SR010 SR09 SR08 SR07 SR06 SR05 SR04 SR03 SR02 SR01 SR00 BB80h Rate Note: alias 78h. Register must alias work; zero written then both sample rates reset kHz. SR0[15:0] Writing this register allows user program sampling frequency from (1B58h) (BB80h) Hertz increments. Programming value greater than less than cause unpredictable results. Sample Rate (Index 7Ah) (2Ch)/7Ah Name Default Sample SR115 Rate SR114 SR113 SR112 SR111 SR110 SR19 SR18 SR17 SR16 SR15 SR14 SR13 SR12 SR11 SR10 BB80h Note: alias 7Ah. Register must alias work; zero written then both sample rates reset kHz. SR1[15:0] Writing this register allows user program sampling frequency from (1B58h) (BB80h) Hertz increments. Programming value greater than less than cause unpredictable results. Vendor Registers (Index 7Ch-7Eh) efau 4144h S[7:0] F[7:0] Name This register ASCII encoded `A.' This register ASCII encoded `D.' Default Vendor REV7 REV6 REV5 REV4 REV3 REV2 REV1 REV0 5362h T[7:0] This register ASCII encoded `S.' REV. -15- AD1887 OUTLINE DIMENSIONS Dimensions shown inches (mm). 48-Lead Thin Plastic Quad Flatpack (LQFP) (ST-48) C02497-.8-7/01(0) 0.063 (1.60) 0.030 (0.75) 0.018 (0.45) 0.354 (9.00) VIEW (PINS DOWN) 0.276 (7.00) COPLANARITY 0.003 (0.08) 0.008 (0.2) 0.004 (0.09) 0.019 (0.5) 0.011 (0.27) 0.006 (0.17) 0.057 (1.45) 0.053 (1.35) 0.006 (0.15) SEATING 0.002 (0.05) PLANE -16- REV. PRINTED U.S.A. Other recent searchesXZDUW10C2 - XZDUW10C2 XZDUW10C2 Datasheet UN222 - UN222 UN222 Datasheet AP-814 - AP-814 AP-814 Datasheet AN1102F - AN1102F AN1102F Datasheet
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