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
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 R37, R88 49.95 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF49R9V
AEC-Q200
Panasonic
1 R52 562 Ω SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF5620X
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
2 R154, R162 1 MΩ SMD resistors,, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V
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 R37, R88 49.95 kΩ SMD resistors, 1%, 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF49R9V |
| AEC-Q200 | Panasonic | 1 R52 562 Ω SMD resistor, 1%, 1/10 W, 0402, AEC-Q200 Panasonic ERJ-2RKF5620X |
| 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 | 2 R154, R162 1 MΩ SMD resistors,, 1% 1/10 W, 0603, AEC-Q200 Panasonic ERJ-3EKF1004V |
| 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/ |