EVAL-ADAU1861EBZ Evaluation Board User Guide for ADAU1861 Codec
User guide for evaluating the ADAU1861 low-power codec with audio DSPs using the EVAL-ADAU1861EBZ board, featuring three ADCs, one DAC, and Lark Studio GUI support.
Overview
This user guide details the design, setup, and operation of the EVAL-ADAU1861EBZ evaluation board for the ADAU1861 low-power audio codec. The ADAU1861 features three ADCs, one DAC, and integrated audio DSPs including FastDSP and Tensilica HiFi 3z. The evaluation board is a 4-layer PCB providing analog and digital I/O, a microphone array for beamforming, and an ADAU1966A 16-channel DAC for high-performance audio tuning. The system is controlled via the Lark Studio GUI through a USB connection and can be powered by the USB bus or a 12V DC supply. The document includes comprehensive hardware descriptions, default jumper settings, software configuration steps for signal flow and DSP programming, as well as full schematics and a detailed bill of materials.
Use Cases
- Evaluating low-power audio codec performance
- Developing beamforming microphone array applications
- Testing custom DSP signal flows for audio processing
- Prototyping digital audio interfaces (I2S, TDM, PDM, DMIC)
- Configuring audio systems with 24-bit ADCs and DACs
Topics
Referenced Parts
Analog Devices
An LDO regulator (U38, ADP7105ARDZ) with a 5 V output that provides power sources for other 5 V input circuits.
Analog Devices
A buck or boost DC-DC converter (LTC3115EDHD-1#PBF) with a 7 V output.
AVX
3 C173, C176, C193 1 μF ceramic capacitors, 50 V, 10%, X7R, 1206 AVX 12065C105KAT2A
Analog Devices
1 U3 IC, 16-channel, high performance, 192 kHz, 24-bit DAC Analog Devices ADAU1966AWBSTZ
Analog Devices
1 U8 IC, 40 V, 2 A synchronous buck-boost DC-DC converter Analog Devices LTC3115EDHD-1#PBF
Bourns
4 R83, R84, R87, R89 100 kΩ SMD resistors, 1%, 1/10 W, 0603 Bourns CR0603-FX-1003ELF
Murata
2 C96, C97 12 pF ceramic capacitors, 50 V, 5%, C0G, 0402 Murata GJM1555C1H120JB01D
Murata
16 C49, C50, C62 to C75 2700 pF ceramic capacitors, 50 V, 5%, C0G, 0603 Murata GRM1885C1H272JA01D
Murata
3 C3, C4, C184 4.7 μF ceramic capacitors, 16 V, 10%, X6S, 0603 Murata GRM188C81C475KE11D
Murata
10 C194 to C198, C202, C204 to C207 2.2 μF ceramic capacitors, 10 V, 10%, X7R, 0603 Murata GRM188R71A225KE15D
Murata
1 C172 4.7 μF ceramic capacitor, 50 V, 10%, X7R, 1206 Murata GRM31CR71H475KA12L
Murata
1 C192 47 μF ceramic capacitors, 10 V, 10%, X7R, 1210 Murata GRM32ER71A476KE15L
Panasonic
16 R50, R51, R67 to R80 49.9 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF4992X
Panasonic
6 R21 to R24, R26, R27 1 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1001V
Panasonic
7 R32, R39, R40, R42 to R45 10 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1002V
Panasonic
2 R154, R162 1 MΩ SMD resistors,, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V
Panasonic
1 R168 1.27 kΩ SMD resistor, 1%, 1/10 W, 060,3 AEC-Q200 Panasonic ERJ-3EKF1271V
Panasonic
1 R163 165 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1653V
Panasonic
4 R95, R96, R102, R103 2.4 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF2401V
Panasonic
17 R48, R49, R53 to R66, R164 475 Ω SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF4750V/
Panasonic
2 R37, R88 49.95 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF49R9V
Panasonic
3 R16 to R18 5.1 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF5101V
Panasonic
1 R158 47.5 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF4752V
TDK
1 C189 10 pF ceramic capacitor, 50 V, 0.5 pF, C0G, 0402 TDK CGA2B2C0G1H100D050BA
Vishay
1 R169 40.25 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Vishay CRCW060340K2FKEA/
Yageo
7 R6, R9, R10, R12, R13, R100, R101 2 kΩ SMD resistors, 1%, 1/10 W, 0603 Yageo RC0603FR-072KL
Analog Devices
An LDO regulator circuit (LT3042IMSE#TRPBF) that provides a bias (6 V) for the external audio sources input circuit.
Analog Devices
In addition, for audio tuning, the ADAU1966A also supports a 16-channel digital-to-analog converter.
ERA-2AED473X/AT0402FRE0747KL
Panasonic
Panasonic ERA-2AED473X/AT0402FRE0747KL
GRM188R61A106ME69D
Taiyo Yuden
Taiyo Yuden GRM188R61A106ME69D
AEC-Q200
Panasonic
1 R5 1 kΩ SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF1001X
AEC-Q200
Panasonic
6 R21 to R24, R26, R27 1 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1001V
AEC-Q200
Panasonic
4 R95, R96, R102, R103 2.4 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF2401V
AEC-Q200
Panasonic
1 R163 165 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1653V
AEC-Q200
Panasonic
2 R154, R162 1 MΩ SMD resistors,, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V
AEC-Q200
Panasonic
2 R37, R88 49.95 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF49R9V
AEC-Q200
Panasonic
16 R50, R51, R67 to R80 49.9 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF4992X
AEC-Q200
Panasonic
1 R158 47.5 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF4752V
AEC-Q200
Panasonic
3 R16 to R18 5.1 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF5101V
AEC-Q200
Panasonic
17 R48, R49, R53 to R66, R164 475 Ω SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF4750V/
AEC-Q200
Panasonic
1 R90 100 Ω SMD resistor 5%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GEJ101X
AEC-Q200
Panasonic
10 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF1002X
AEC-Q200
Panasonic
0 kΩ SMD resistors, jumper, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3GEY0R00V
AEC-Q200
Panasonic
1 R38 1.5 kΩ SMD resistor, 1%, 1/10 W 0402, AEC-Q200 Panasonic ERJ-2RKF1501X
AEC-Q200
Panasonic
7 R32, R39, R40, R42 to R45 10 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1002V
AEC-Q200
Panasonic
1 R168 1.27 kΩ SMD resistor, 1%, 1/10 W, 060,3 AEC-Q200 Panasonic ERJ-3EKF1271V
AEC-Q200
Panasonic
1 R52 562 Ω SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF5620X
4PDT
TE Connectivity
1 S1 Switch, slide, 4PDT TE Connectivity Ltd MSS420004
AEC-Q200
Vishay
1 R169 40.25 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Vishay CRCW060340K2FKEA/
| ADP1715ARMZ-3.3-R7 | Analog Devices | An LDO regulator (U39, ADP1715ARMZ-3.3-R7) with a 3.3 V output |
| ADP7105ARDZ | Analog Devices | An LDO regulator (U38, ADP7105ARDZ) with a 5 V output that provides power sources for other 5 V input circuits. |
| LTC3115EDHD-1#PBF | Analog Devices | A buck or boost DC-DC converter (LTC3115EDHD-1#PBF) with a 7 V output. |
| W25Q128JWEIQ | Winbond | An on-board flash W25Q128JWEIQ -128 M bits interface is available. |
| 12065A102JAT2A | AVX | 1 C180 1000 pF ceramic capacitors, 50 V, 5%, C0G, 1206 AVX 12065A102JAT2A |
| 12065C105KAT2A | AVX | 3 C173, C176, C193 1 μF ceramic capacitors, 50 V, 10%, X7R, 1206 AVX 12065C105KAT2A |
| ADAU1966AWBSTZ | Analog Devices | 1 U3 IC, 16-channel, high performance, 192 kHz, 24-bit DAC Analog Devices ADAU1966AWBSTZ |
| ADM8616WCYAKSZ-RL7 | Analog Devices | Analog Devices ADM8616WCYAKSZ-RL7 |
| ADP1715ARMZ-1.8-R7 | Analog Devices | Analog Devices ADP1715ARMZ-1.8-R7 |
| ADP1715ARMZ-3.3-R7 | Analog Devices | Analog Devices ADP1715ARMZ-3.3-R7 |
| ADP1715ARMZ-R7 | Analog Devices | Analog Devices ADP1715ARMZ-R7 |
| ADP7105ARDZ | Analog Devices | Analog Devices ADP7105ARDZ |
| LTC3115EDHD-1#PBF | Analog Devices | 1 U8 IC, 40 V, 2 A synchronous buck-boost DC-DC converter Analog Devices LTC3115EDHD-1#PBF |
| CR0603-FX-1003ELF | Bourns | 4 R83, R84, R87, R89 100 kΩ SMD resistors, 1%, 1/10 W, 0603 Bourns CR0603-FX-1003ELF |
| SJ-3523-SMT | CUI | CUI SJ-3523-SMT |
| C0402C330J4RACAUTO | Kemet | KEMET C0402C330J4RACAUTO |
| BLM31AJ601SH1L | Murata | Murata BLM31AJ601SH1L |
| DLW5BTM101SQ2L | Murata | Murata DLW5BTM101SQ2L |
| GCM1555C1H391JA16D | Murata | Murata GCM1555C1H391JA16D |
| GCM155R71C104KA55D | Murata | Murata GCM155R71C104KA55D |
| GCM155R71E103KA37D | Murata | Murata GCM155R71E103KA37D |
| GCM188R71C105KA64D | Murata | Murata GCM188R71C105KA64D |
| GJM1555C1H120JB01D | Murata | 2 C96, C97 12 pF ceramic capacitors, 50 V, 5%, C0G, 0402 Murata GJM1555C1H120JB01D |
| GRM1885C1H272JA01D | Murata | 16 C49, C50, C62 to C75 2700 pF ceramic capacitors, 50 V, 5%, C0G, 0603 Murata GRM1885C1H272JA01D |
| GRM188C81C475KE11D | Murata | 3 C3, C4, C184 4.7 μF ceramic capacitors, 16 V, 10%, X6S, 0603 Murata GRM188C81C475KE11D |
| GRM188R60J474KA01D | Murata | Murata GRM188R60J474KA01D |
| GRM188R71A225KE15D | Murata | 10 C194 to C198, C202, C204 to C207 2.2 μF ceramic capacitors, 10 V, 10%, X7R, 0603 Murata GRM188R71A225KE15D |
| GRM31CR71H475KA12L | Murata | 1 C172 4.7 μF ceramic capacitor, 50 V, 10%, X7R, 1206 Murata GRM31CR71H475KA12L |
| GRM32ER71A476KE15L | Murata | 1 C192 47 μF ceramic capacitors, 10 V, 10%, X7R, 1210 Murata GRM32ER71A476KE15L |
| GRM32ER71C226KEA8L | Murata | 22 μF ceramic capacitors, 16 V, 10%, X7R, 1210 Murata GRM32ER71C226KEA8L |
| ERJ-2GEJ101X | Panasonic | 1 R90 100 Ω SMD resistor 5%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GEJ101X |
| ERJ-2RKF1001X | Panasonic | 1 R5 1 kΩ SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF1001X |
| ERJ-2RKF1002X | Panasonic | 10 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF1002X |
| ERJ-2RKF1501X | Panasonic | 1 R38 1.5 kΩ SMD resistor, 1%, 1/10 W 0402, AEC-Q200 Panasonic ERJ-2RKF1501X |
| ERJ-2RKF4992X | Panasonic | 16 R50, R51, R67 to R80 49.9 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF4992X |
| ERJ-2RKF5620X | Panasonic | 1 R52 562 Ω SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF5620X |
| ERJ-3EKF1001V | Panasonic | 6 R21 to R24, R26, R27 1 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1001V |
| ERJ-3EKF1002V | Panasonic | 7 R32, R39, R40, R42 to R45 10 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1002V |
| ERJ-3EKF1004V | Panasonic | 2 R154, R162 1 MΩ SMD resistors,, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V |
| ERJ-3EKF1271V | Panasonic | 1 R168 1.27 kΩ SMD resistor, 1%, 1/10 W, 060,3 AEC-Q200 Panasonic ERJ-3EKF1271V |
| ERJ-3EKF1653V | Panasonic | 1 R163 165 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1653V |
| ERJ-3EKF2401V | Panasonic | 4 R95, R96, R102, R103 2.4 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF2401V |
| ERJ-3EKF4750V | Panasonic | 17 R48, R49, R53 to R66, R164 475 Ω SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF4750V/ |
| ERJ-3EKF49R9V | Panasonic | 2 R37, R88 49.95 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF49R9V |
| ERJ-3EKF5101V | Panasonic | 3 R16 to R18 5.1 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF5101V |
| ERJ-3GEY0R00V | Panasonic | 0 kΩ SMD resistors, jumper, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3GEY0R00V |
| ERJ-6ENF4752V | Panasonic | 1 R158 47.5 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF4752V |
| C1608X6S1C335M080AC | TDK | TDK C1608X6S1C335M080AC |
| CGA2B2C0G1H100D050BA | TDK | 1 C189 10 pF ceramic capacitor, 50 V, 0.5 pF, C0G, 0402 TDK CGA2B2C0G1H100D050BA |
| CGA2B2C0G1H330J050BA | TDK | TDK CGA2B2C0G1H330J050BA |
| CGA3E2C0G1H332J080AA | TDK | TDK CGA3E2C0G1H332J080AA |
| CGA3E2X7R1H104K080AA | TDK | TDK CGA3E2X7R1H104K080AA |
| MMICT3902-00-012 | TDK | TDK MMICT3902-00-012 |
| MMZ1005S601CTD25 | TDK | 4 E2,E3,E4,E5 Inductor, ferrite bead, 0.52 Ω DCR, 0.3 A TDK MMZ1005S601CTD25 |
| CRCW060340K2FKEA | Vishay | 1 R169 40.25 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Vishay CRCW060340K2FKEA/ |
| PAT0603E7501BST1 | Vishay | Vishay PAT0603E7501BST1/ |
| RC0402FR-0712KL | Yageo | 2 R3, R165 12 kΩ SMD resistors, 1%, 1/16 W, 0402 Yageo RC0402FR-0712KL/ |
| RC0603FR-0713KL | Yageo | 1 R170 13 kΩ SMD resistor, 1%, 1/10 W, 0603 Yageo RC0603FR-0713KL |
| RC0603FR-0715KL | Yageo | 1 R161 15 kΩ SMD resistor, 1%, 1/10 W, 0603 Yageo RC0603FR-0715KL |
| RC0603FR-072KL | Yageo | 7 R6, R9, R10, R12, R13, R100, R101 2 kΩ SMD resistors, 1%, 1/10 W, 0603 Yageo RC0603FR-072KL |
| RC0603FR-0760K4L | Yageo | 2 R153, R159 60.4 kΩ SMD resistors, 1%, 1/10 W, 0603 Yageo RC0603FR-0760K4L |
| FXLP34L6X | Onsemi | 9 U6, U10, U12 to U18 IC, 1-bit unidirectional translators ONSEMI FXLP34L6X |
| MBR0540T1G | Onsemi | 2 D1, D2 Diodes, Schottky, rectifier, surface-mount device (SMD) ONSEMI MBR0540T1G |
| LT3042IMSE#TRPBF | Analog Devices | An LDO regulator circuit (LT3042IMSE#TRPBF) that provides a bias (6 V) for the external audio sources input circuit. |
| ADAU1861 | Analog Devices | Evaluating the ADAU1861 Three ADCs, One DAC, Low Power Codec with Audio DSPs |
| ADAU1966A | Analog Devices | In addition, for audio tuning, the ADAU1966A also supports a 16-channel digital-to-analog converter. |
| FT4232 | Ftdi | The FTDI 4232 is powered by an on-board LDO regulator with a 3.3 V output. |
| ADAU1861BCSZ-RL | Analog Devices | Analog Devices ADAU1861BCSZ-RL |
| LT3042IMSE#TRPBF | Analog Devices | Analog Devices LT3042IMSE#TRPBF |
| ERA-2AED473X/AT0402FRE0747KL | Panasonic | Panasonic ERA-2AED473X/AT0402FRE0747KL |
| GRM188R61A106ME69D | Taiyo Yuden | Taiyo Yuden GRM188R61A106ME69D |
| AEC-Q200 | Panasonic | 1 R5 1 kΩ SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF1001X |
| AEC-Q200 | Panasonic | 6 R21 to R24, R26, R27 1 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1001V |
| AEC-Q200 | Panasonic | 4 R95, R96, R102, R103 2.4 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF2401V |
| AEC-Q200 | Panasonic | 1 R163 165 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1653V |
| AEC-Q200 | Panasonic | 2 R154, R162 1 MΩ SMD resistors,, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V |
| AEC-Q200 | Panasonic | 2 R37, R88 49.95 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF49R9V |
| AEC-Q200 | Panasonic | 16 R50, R51, R67 to R80 49.9 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF4992X |
| AEC-Q200 | Panasonic | 1 R158 47.5 kΩ SMD resistor, 1%, 1/8 W, 0805, AEC-Q200 Panasonic ERJ-6ENF4752V |
| AEC-Q200 | Panasonic | 3 R16 to R18 5.1 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF5101V |
| AEC-Q200 | Panasonic | 17 R48, R49, R53 to R66, R164 475 Ω SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF4750V/ |
| AEC-Q200 | Panasonic | 1 R90 100 Ω SMD resistor 5%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2GEJ101X |
| AEC-Q200 | Panasonic | 10 kΩ SMD resistors, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF1002X |
| AEC-Q200 | Panasonic | 0 kΩ SMD resistors, jumper, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3GEY0R00V |
| AEC-Q200 | Panasonic | 1 R38 1.5 kΩ SMD resistor, 1%, 1/10 W 0402, AEC-Q200 Panasonic ERJ-2RKF1501X |
| AEC-Q200 | Panasonic | 7 R32, R39, R40, R42 to R45 10 kΩ SMD resistors, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1002V |
| AEC-Q200 | Panasonic | 1 R168 1.27 kΩ SMD resistor, 1%, 1/10 W, 060,3 AEC-Q200 Panasonic ERJ-3EKF1271V |
| AEC-Q200 | Panasonic | 1 R52 562 Ω SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF5620X |
| 4PDT | TE Connectivity | 1 S1 Switch, slide, 4PDT TE Connectivity Ltd MSS420004 |
| AEC-Q200 | Vishay | 1 R169 40.25 kΩ SMD resistor, 1%, 1/10 W, 0603, AEC-Q200 Vishay CRCW060340K2FKEA/ |