cx20709.pdf

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The CX20709 is one of Conexant's Audio/Voice DSP CODEC family solutions with highly integrated hardware DSP, CODEC, Class-D amplifier, USB, I2S, S/PDIF, and I2C interfaces. The solution features a suite of turnkey audio and voice enhancement algorithms designed for convergence audio entertainment an
Contents Contents igures. 1面g 1■ 7 Tables 1 CX20709 Introduction 1.1 Summary .······ :·: 11 1.2 Features 12 1.2.1 Codec Features 12 1.2.2 Ordering Options 13 1.2.3 CX20709 Device differences ........,,,,,.......,,13 1.2.4 Applications 14 1.2.5 CX20709 Interface Diagram 14 2CX20709-21 Z Hardware Interface,.,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 17 2.1 CX20709-21Z Pin Assignments ..,,,,,,,,17 2.2C×20709-212 Hardware Interface Signals.....4….….…,18 2.3 Signal Definitions ..,,...,,,,19 2. 4 Electrical Characteristics ...,.,23 2.4.1 Power Supplies 23 2.4.2 Absolute Maximum Ratings............................23 2.4.3 Analog Inputs and Outputs 24 2.4.4 Digital Inputs and Outputs 26 2. 4. 4.13.3 V/1.8V l/OS: 12C EN/MCLK 12S PCM 1 CLK 12S PCM 1 RX WS 12S PCM 1 TX WS/ SPDIF OUT I2S PCM 2 WS I2S PCM 2 CLK/ DMIC CLK, GPIO_14: 01, Ks[2: 01, NVDAT, NVCLK, SPI MISO 27 2.4.4.2 3.3 V/1.8 V Output Pad Cells: 12S PCM_1 TX DAT, 12S PCM 2 TX DAT, UART T×,SPM|SO. 29 2.4.4.3 3. V/1.8V Input Pad Cells: 12C EN, 12C SPI CSN, 12S PCM 1 RX DAT, 12S PCM 2 RX DAT/ DMIC IN/SPDIF IN PASS THRU, UART RX., 30 2.4.4.4 Input Pad Cells: TEST, USB 5VDET (VDDO4=3.3V) 31 2.4.4.5 RST N(3.3 V Input with Schmidt and Pull-Up) 31 2.4.4.6 XTLIXTLO(XTAL Oscillator)VDDO4=3.3V 32 2.4.4.712C1Os:12CSP|SCL.12 C SDA/SP|MOS1...,..33 2 44.8 USB IO Pads: USB DP USB DM 36 2.4.5 CX20709-21Z Power Consumption 38 2.4.6 CX20709-21Z Power Sequencing 40 2.5 CX20709-21Z Pin Diagram DSH-202806A Conexant 3 10/18/11 Preliminary Information/ Conexant Proprietary and Confidential CX20709 Data sheet 2.6 CX20709-21Z Package Dimensions 41 2.6. 1 Package Thermal Data 42 3 CX20709-21Z Device Description 43 3. 1 Analog Audio Input Paths ..,43 3.1.1 Analog-Digital Converters .43 3.1.2 Line Inputs 43 3.1.3 Microphone Input 43 3.1.4 Microphone Bias Generator.................. 44 3.1.5 Jack se 44 3.1.6 Monitor adc 44 3.2 Analog Audio Output Paths 44 3.2.1 Digital-Analog Converters 44 3.2.2 Differential/Single-ended Line Out (Stereo) 44 3.2.32.5 W Class-D 45 3.2.4 Capless Headphone Driver 45 3.2.5 Differential/ Single-ended Line Out(Mono) 45 3.3 Digital Audio 6 3.3.1UsB 46 3.3.2 5-Wire PCM/S/SPDIF OUT(Digital Port 1)Interface 46 3.3.3 4-Wire PCM/I-S/SPDIF IN/Digital Microphone(Digital Port 2)Interface ..,47 3.3.4 Digital Microphone Interface .........,47 3.3.5 SPDIF Input Interface .,,49 3.3.6 [2S Audio Interface Timing 49 3.3.6.1 Left-Justified Timing 53 3.3.6.2 Right-Justified Timing 53 3.3.7 PCM Audio Interface Timing 54 3.3.7.1 PCM EXample 1: Requirement 54 3.3.7.2 PCM EXample 1: PCM Register Setting 54 3.3.7. 3 PCM Example 2: Requirement. .,..,55 3.3.7.4 PCM EXample 2: PCM Register Setting 翻面国 55 3.3.8 Master clock to codec MCLK 57 3.3.9 12S/PCM Pass-Through Mode 57 3.3.10 Sound bar.....,, 58 3.4 Control interfaces..,,,,.,,,,,,,,,,,,,,,,,,, .,,,,,,,,,,58 34.1SP2C 34.11P2 C Write Operation,¨∴ 58 58 3.4.1.2|2C Read Operation 59 3.4.2 CX20709-21Z SPI Interface .,,,,59 3.4.2.1 SP1/2C Interface V/Os 59 3.4.2212c/SP| Clock.. 60 3.4.2.3 General Description: SPI Interface ....,,60 3.4.2.4 SPI Register Read/Write Operation ...,,,,,60 3.4.2.5 SPI Timing Information 61 3. 4.2.6 SPI Read/rite Timing ..,,,,,..,,62 3.4.3GP|O ..,64 3.4.4 EEPROM....... 64 4 Conexant DSH202806A Preliminary Information/ Conexant Proprietary and Confidential 10/18/11 CX20709 Data sheet 3.45 UART 64 3.4.6 Clock Source/Crystal 65 3.5 DSP 66 3.5.1 CX20709-21Z DSP Stream Routing 66 3.6 Pass-Thru mode 72 3.7 Internal Clocking ,73 4CX20709-21 Z Registers...….….………,..…75 4.1 Register Map 75 4.2 Register Details 77 CX20709-12Z Hardware Interface .87 5.1 Pin Assignme 87 5.2 CX20709-12Z Hardware Interface Signals 88 5.3 Signal Definiti 89 5. 4 Electrical characteristics ,,,,,,,,,,,,,,,,,,,,,,,93 5.4.1 Power Supplies 93 5.4.2 Absolute Maximum Ratings ......,.93 5.4.3 Analog Inputs and Outputs...……. 94 5.4.4 Digital Inputs and Outputs 5.4.4. 3. V/1.8V I/Os: 2S PCM 1 CLK 12S PCM 1 RX WS 12S_PCM__TX WS,I2S_ PCM_2_WS, 12S PCM_2 CLK, GPIO_[4: 01, Ks12: 0, NVDAT, NVCLK, SPI MISO 97 5.4.4.2 3.3 V/1.8V Output Pad Cells: 12S PCM 1 TX DAT, 12S PCM 2 TX DAT, UART T×,SPM|So ·.····· 99 5.4.4.3 3.3 V/1.8V Input Pad Cells: 12C EN, 12C SPI CSN, 12S PCM 1 RX DAT 12S PCM 2 RX DAT PASS THRU UART RX .100 5.4.4. 4 Input Pad Cells: TEST, USB 5VDET(VDDO4=3.3V) 101 5.4.4.5 RST N(3.3VInput with Schmidt and Pull-Up)..........101 5.4.4.6 XTLI/XTLO (XTAL Oscillator)VDDo4 =3.3V .,102 5.4. 4. 12C I/Os: 12C SP SCL,12C SDA/SPI MOSI 103 5.4.4.8 USB IO Pads: USB DP. USB DM ..,,106 5.4.5 Power Consumption. ...108 5.4.6 CX20709-12Z Power Sequencing 110 5.5 CX20709-12Z Pin Diagram 111 5.6 CX20709-12Z Package dimensions 112 5.6.1 Package Thermal data 112 CX20709-12Z Device Description .,.115 6. 1 Analog audio input paths 115 6.1.1 Analog-Digital Converters 115 6.1.2 Line Inputs 115 6.1.3 Microphone Input 115 6.1.4 Microphone Bias Generator......................115 6.1.5 Jack Sense 116 6.1.6 Monitor adc 116 6.2 Analog Audio Output Path 116 6.2.1 Digital-Analog Converters 翻8 116 6.2.2 Differential/Single-ended Line Out (Stereo) 116 DSH-202806A Conexant 5 10/18/11 Preliminary Information/ Conexant Proprietary and Confidential CX20709 Data sheet 6.2.3 2.5 W ClaSs-D 117 6.2.4 Capless Headphone Driver 117 6.2.5 Differential/Single-ended Line Out(Mono) 117 6.3 Digital Audio ...,118 6.3.1USB 118 6.3.2 5-Wire PCM/S/SPDIF(Digital Port 1)Interface..............118 6.3.3 4-Wire PCM/S(Digital Port 2)Interface 119 6.3.4 12s Audio Interface Timing ...119 6.3.4.1 Left-Justified Timing 123 6.3. 4.2 Right-Justified Timing 123 6.3.5 PCM Audio Interface Timing ....,,,,,,,.,.,..,,,124 6.3.5.1 PCM EXample 1: Requirement .,,,,,,,,,,.,,,,,.,,.,124 6.3.5.2 PCM EXample 1: PCM Register Setting..............124 6.3.5.3 PCM Example 2: Requirement 125 6.3.5.4 PCM EXample 2: PCM Register Setting.............. 125 6.3.6 12S/PCM Pass-Through Mode 127 6.4 Control interfaces ....,128 6.4.1SP/C..,,,,,,,,,,,,,,,,,,,,,,,,,,, 128 6.4.1.1 I< C Write Operation ,,128 6.4.1.2 C Read Operation 128 6.4.2CⅩ20709-12 Z SPI Interface..,,,,,,,,,,,, 129 6.4.2.1 SPC Interface l/Os 129 6.4.2.2C/SPI Clock 6424SP| Register Read/Write operan.∴·. ..129 6.4.2.3 General Description: SPl Interface 129 130 6.4.2.5 SPI Timing Information 131 6.4.2.6 SPI Read/Write Timing ...,,132 64.3GP|O 134 6.4.4 EEPROM :·: 134 6.4.5 UART 134 6.4.6 Clock Source/Crystal 134 6.5 DSP 135 6.5.1 CX20709-12Z DSP Stream Routing ..,,135 6.6Pass- Thru mode...,,,,,,,,,, 141 6.7 Internal Clocking 142 7 CX20709-12Z Registers ..,,143 7.1 Register Map. 143 7.2 Register Details 145 6 Conexant DSH202806A Preliminary Information/ Conexant Proprietary and Confidential 10/18/11 Figures igure 1 CX20709-21Z Interface Diagram 14 Figure 2 CX20709-12Z Interface diagram .15 Figure 3 CX20709-21Z Hardware Interface Signals .,,,,,,,,,,18 Figure 4 CX20709-21Z 76-Pin QFN Diagram 40 igure 5 Package Dimensions: 76-Pin QFN 41 Figure 6 Digital Microphone Interface 48 Figure 7 Digital Microphone Interface Timing 面 Figure 8 RX WS/S (Slave Mode) Setup and Hold 51 Figure 9 RX DATA Setup and Hold 51 Figure 10 TX WS /S(Master Mode )Output Delay .................. 51 Figure 11 TX DATA Output Delay·…………… 52 Figure 12 2s Timing Diagram: Width of WS frame is wider than 2N bits N=8, 16 or 24........52 Figure 13. S Timing Diagram 2: 16-Bit per Channel 12S................ 52 Figure 14. Left-Justified Timing Diagram .,,,,,53 Figure 15 Right-Justified Timing Diagram 53 Figure 16 Short Frame Sync TX....….…...….,…,,…..56 Figure 17 Short Frame Sync RX 56 Figure 18 Long frame sync Tx Figure 19 Long frame Sync RX 56 Figure 20. 12S/PCM Pass-Through Mode Diagram 57 Figure 21 SPI Timing 61 Figure 22 SPI Read Timing 62 Figure 23 SPI Write Timing ....,,,63 Figure 24 SPI Burst read ..,,63 Figure 25 SPI Burst Write 64 igure 26 CX20709-21Z Input Streams and Function Generator Block 68 Figure 27 CX20709-212 Processing Blocks and Mixer Block.……… 69 Figure 28 CX20709-21Z Output Streams 0 Figure 29 CX20709-21Z DSP Diagram .,,71 Figure 30. Pass-Thru(non-DSP) Audio Stream Routing Diagram 72 Figure 31 Internal clocking .73 Fic gure 32 CX20709-12Z Hardware Interface Signals :··· .88 Figure 33 CX20709-12Z76-Pin QFN Diagram Figure 34 Package Dimensions: 76-Pin QFN ...112 Figure 35. RX WS/S (Slave Mode) Setup and Hold ..,,121 Figure 36 RX DATA Setup and Hold 121 DSH-202806A Conexant 7 10/18/11 Preliminary Information/Conexant Proprietary and Confidential CX20709 Data sheet Figure 37. TX_WS/S(Master Mode)Output Delay 121 Figure 38 TX DATA Output Delay 122 Figure 39. s Timing diagram Width of ws frame is wider than 2N bits n=8, 16 or 24.......122 Figure 40. -S Timing Diagram 2: 16-Bit per Channel 12S ..,...,.,,122 Figure 41 Left-Justified Timing Diagram ..123 Figure 42 Right-Justified T iming Diagram ............... 123 Figure 43 Short Frame Sync TX 126 Figure 44 Short Frame Sync RX 126 Figure 45 Long Frame Sync TⅩ....….…….……,…126 Fiqure 46 Long Frame Sync RX 126 Figure 47 1S/PCM Pass-Through Mode Diagram 127 Figure 48 SPI Timing 131 Figure 49. SPI Read Timing 132 Figure 50 SPI Write Timing .133 Figure 51 SPI Burst Read E 133 Figure 52 SPI Burst write 134 Figure 53 CX20709-12Z Input Streams and Function Generator Block 137 Figure 54 CX20709-12Z Processing blocks and mixer block :.: .138 igure 55 Fic CX20709-12Z Output Streams 139 Figure 56 CX20709-12Z DSP Diagram ...140 Figure 57 Pass-Thru(non-DSP)Audio Stream Routing Diagram 141 Fiqure 58 Internal Clocking......... 翻着翻 142 8 Conexant DSH202806A Preliminary Information/ Conexant Proprietary and Confidential 10/18/11 Tables Table 1 Ordering Options ..,,13 Table 2 CX20709-21Z Pin Assignments and Signal Definitions............. 17 Table 3 CX20709-21Z Hardware Signal Definitions 19 Table 4 Genera|...,,,,, 23 Table 5 Absolute Maximum Ratings 23 Table 6 Line Inputs 24 Table 7 Mic Inputs 24 Table 8 Sub Outputs 24 Table 9 Line output 翻11 24 Table 10 Headphone Output 25 Table 11 Charge Pump..... 25 Table 12 Speaker Output 25 Table 13 Microphone bias 25 Table 14 Jack Sensing 25 Table 15 Monitor adc Table 16 CX20709-21Z Digital l/O Pad Cells Table 17 3.3V/O Electrical Characteristics 27 Table 18 3.3V∥ O Switching Characteristics..…....,…,,...,….,.......27 Table 19 1.8VI/ Electrical Characteristics ...,28 Table 20 1.8V/O Switching Characteristics 28 Table 21 3.3V Output Pad Electrical Characteristics ● Table 22 3.3 V Output Pad Switching Characteristics Table 23 1.8V Output Pad Electrical Characteristics 29 Table 24 1.8 V Output Pad Switching Characteristics ....,,30 Table 25 3.3 V Input Pad Cells Electrical Characteristics Table 26 1. 8V Input pad cells Electrical Characteristics Table 27 3.3V Input Pad cells electrical characteristics................31 Table 28 3.3VRST N Electrical Characteristics Table 29 XTLIXTLO Electrical Characteristics 32 Table 30 3.3VI2C SP SCL I2C SDA/SPI MOSI Electrical Characteristics 34 Table 31 1.8 V 2C SPI SCL I2C SDA/SPI MOSI Electrical Characteristics Table 32 USB I/o Rpu Control Table 33 USB IO Electrical Characteristics Table 34 CX20709-21Z Power Consumption 翻 38 Table 35 Package Thermal Data ::..:::..:.::.. 42 Table 36 Test board and conditions for thermal data 42 Table 37 Digital Microphone Interface Parameters 48 Table 38 2s Audio Interface Parameters .50 Table 39 Timing Parameters .61 Table 40 Control word format 62 Table 41 Register List Table 42 Pin assignments and signal definitions 87 Table 43 CX20709-12Z Hardware signal Definitions 89 DSH-202806A Conexant 9 10/18/11 Preliminary Information/ Conexant Proprietary and Confidential Tables CX20709 Data sheet Table 44 Genera...,,,,,,,,, 93 Table 45 Absolute Maximum Ratings 93 Table 46 le Inputs 94 Table 47 Mic Inputs ,,..,,94 Table 48 Sub Outputs 94 Table 49 Line Output 94 Table 50 Headphone Output.∴ 95 Table 5 Charge Pump 95 Table 52 Speaker Output.....… 95 Table 53 Microphone bias 95 Table 54 Jack sensing 95 Table 55 Monitor adc .95 Table 56 CX20709-12Z Digital I/O Pad Cells Table 57 3.3Vl/O Electrical Characteristics 97 Table 58 3.3VlO Switching Characteristics 97 Table 59 1./0 Electrical Characteristics 98 Table 60 1.8 V l/O Switching Characteristics 98 Table 61 3.3V Output Pad Electrical Characteristics 99 Table 62 3.3V Output Pad Switching Characteristics................. 99 Table 63 1.8V Output Pad Electrical Characteristics 99 Table 64 1.8 V Output Pad Switching Characteristics 100 Table 65 3.3 V Input Pad Cells Electrical Characteristics .,,,,,,100 Table 66 1. 8 V Input Pad Cells Electrical Characteristics 100 Table 67 3.3V Input Pad cells Electrical Characteristics ,,,,,,,,,,,,,,,,,,,,,101 Table 68 3.3VRST N Electrical Characteristics ...101 Table 69 XTLIXTLO Electrical Characteristics 102 Table 70 3.3 2C SP SCL, I2C SDA/SPI MOSI Electrical Characteristics..104 Table 71 1.8 2C SPI SCL I2C SDA/SPI MOSI Electrical Characteristics 105 Table 72 USB l/O Rpu Control....….,.,.,….,,,,…,, 106 Table 73 USB I/O Electrical Characteristics 106 Table 74 CX2070x-12Z Power Consumption 108 Table 75 Package Thermal Data .,,,,,.,112 Table 76 Test board and conditions for thermal data ...,113 Table 77 12s Audio Interface Parameters 120 Table 78 Timing parameters....... .,,,,,,.131 Table 79 Control word format 132 Table 80 Register List 143 10 Conexant DSH202806A Preliminary Information/ Conexant Proprietary and Confidential 10/18/11

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