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电子发烧友网>电子资料下载>类型>参考设计>SHARC音频模块硬件参考手册

SHARC音频模块硬件参考手册

2021-04-09 | pdf | 286.18KB | 次下载 | 3积分

资料介绍

This version (24 Jun 2020 17:48) was approved by Chad Wentworth.The Previously approved version (19 May 2020 22:35) is available.Diff

SHARC Audio Module(Revision 1.5)

SHARC Audio Module revision 1.4 hardware reference information can be found at Main Board(Revision 1.4)

The SHARC Audio Module uses the ADSP-SC589 SHARC processor along with an ADAU1761 SigmaDSP audio codec and an AD2428W A2B transceiver in a compact form for audio development.

The SHARC Audio Module Main Board

Block Diagram of the SHARC Audio Module Main Board

Main Differences Between Rev 1.5 and Rev 1.4

  • SPI flash and DDR memory changed to drop in replacements from ISSI
  • FTDI header was replaced with an FTDI chip on board along with a USB connector so no need for a separate FTDI cable
  • UART boot was fixed
  • USB and Ethernet jacks are now combined into one jack

Schematics, PCB Layout, Bill of Materials

SHARC Audio Module Main Board Rev 1.5 Design and Integration Files

ADSP-SC589 SHARC DSP

The SHARC Audio Module is powered by the Analog Devices, Inc. ADSP-SC589 SHARC DSP. The ADSP-SC589 contains an ARM Cortex-A5 and Dual SHARC+ cores running at 450 MHz.

DDR3 2x 2Gb

There are two DDR3 channels on the SHARC Audio Module, each with a 2Gbit DDR3 module. In the default SHARC Audio Module configuration, one DDR3 module is used for Linux and the other used by the SHARC+ cores for audio processing.

512Mb SPI Flash

A 512Mbit SPI Flash on the SHARC Audio Module that is ready to be programmed with a users desired audio application.

10/100/1000 Ethernet

The SHARC Audio Module has a 10/100/1000 Ethernet module to provide network and internet access to the board.

USB Type A Host Port and USB MicroAB Host/Device/OTG Port

The USB Type A port is Host mode only, and is for USB WiFi, Bluetooth and USB memory devices. The connector is combined with the Ethernet jack.

The USB MicroAB can be a Host/Device or OTG connection. This interface can be used for USB Audio, along with the USBi Emulator.

Expansion Port P4

+12v 1 2 +12v
GND 3 4 GND
TWI1_SCL 5 6 PB_00
TWI1_SDA 7 8 PB_01
GND 9 10 PB_02
DAI0_PIN13 11 12 PB_03
DAI0_PIN14 13 14 GND
DAI0_PIN15 15 16 PB_04
GND 17 18 PB_05
DAI0_PIN16 19 20 PD_14
DAI0_PIN17 21 22 PD_15
DAI0_PIN18 23 24 GND
+3.3v 25 26 PE_00
GND 27 28 PE_01
HADC0_VIN0 29 30 PE_02
HADC0_VIN1 31 32 PE_03
GND 33 34 GND
HADC0_VIN2 35 36 PE_04
HADCO_VIN3 37 38 PE_05
GND 39 40 PE_06
HADC0_VIN4 41 42 PE_07
HADC0_VIN5 43 44 PE_08
GND 45 46 GND
HADC0_VIN6 47 48 PE_09
HADC0_VIN7 49 50 PE_10
GND 51 52 PE_11/SPI1_SEL3
PD_12/UART2_TX 53 54 PE_12/SPI1_SEL4
PD_13/UART2_RX 55 56 PE_13/SPI1_CLK
TWI2_SCL 57 58 PE_14/SPI1_MISO
TWI2_SDA 49 60 PE_15/SPI1_MOSI
PB_11 61 62 PB_13
PB_12 63 64 PB_14

Expansion Port P5

DAI1_PIN01 1 2 DAI1_PIN11
DAI1_PIN02 3 4 DAI1_PIN12
DAI1_PIN03 5 6 DAI1_PIN13
GND 7 8 GND
DAI1_PIN04 9 10 DAI1_PIN14
DAI1_PIN05 11 12 DAI1_PIN15
DAI1_PIN06 13 14 DAI1_PIN16
GND 15 16 GND
DAI1_PIN07 17 18 DAI1_PINI17
DAI1_PIN08 19 20 DAI1_PIN18
DAI1_PIN09 21 22 DAI1_PIN19
DAI1_PIN10 23 24 DAI1_PIN20
GND 25 26 GND
PD_04 27 28 PD_06
PD_05 29 30 PD_07
PC_07/CAN0_RX 31 32 PB_09/CAN1_TX
PC_08/CAN0_TX 33 34 PB_10/CAN1_RX
PC_09/SPI0_CLK 35 36 PC_00
PC_10/SPI0_MISO 37 38 PB_15
PC_11/SPI1_MOSI 39 40 GND
PC_12/SPI1_SEL3 41 42 +3.3v
PG_00 43 44 PF_14
PG_01 45 46 PF_15
PG_02 47 48 PG_03
TWI0_SCL 49 50 PG_04
TWI0_SDA 51 52 PG_05
GND 53 54 GND
ADAU1761_RAUX 55 56 ADAU1761_RHP
GND 57 58 GND
ADAU1761_LAUX 49 60 ADAU1761_LHP
PD_08 61 62 PD_10
PD_09 63 64 PD_11

USB/UART connector (P6)

This connector is for USB to UART communication using UART0 on the ADSP-SC589 processor.

Automotive Audio Bus (A2B) Interface Duraclick (P6, P7)

The A2B bus uses crossover cables to connect nodes to each other. P6 connects to upstream towards the Master Node in the network and P7 connects downstream to the next slave in the network. The SHARC Audio Module uses the AD2428W IC.

  • BLCK is connected to DAI0_PIN07
  • SYNC is connected to DAI0_PIN08
  • DTX0 is connected to DAI0_PIN09
  • DTX1 is connected to DAI0_PIN10
  • DRX0 is connected to DAI0_PIN11
  • DRX1 is connected to DAI0_PIN12

SigmaDSP ADAU1761 Audio Codec

The ADAU1761 is a low power, stereo audio codec with integrated digital audio processing that supports stereo 48 kHz record and playback. The stereo audio ADCs and DACs support sample rates from 8 kHz to 96 kHz as well as a digital volume control.

The SigmaDSP® core features 28-bit processing (56-bit double precision). The processor allows system designers to compensate for the real-world limitations of microphones, speakers, amplifiers, and listening environments, resulting in a dramatic improvement in the perceived audio quality through equalization, multiband compression, limiting, and third-party branded algorithms.

The ADAU1761 is connected to the DAI ports on the ADSP-SC589 as follows:

  • DAC_SDATA is connected to DAI0_PIN01
  • ADC_SDATA is connected to DAI0_PIN02
  • BCLK is connected to DAI0_PIN03
  • LRCLK is connected to DAI0_PIN04

3.5mm Audio In/Out Jacks (J1, J2)

The 3.5mm Audio In/Out jacks are connected to the ADAU1761 SigmaDSP.

The impedance of the 3.5mm signals is 16 ohms. The HP output pins to the expansion connectors are also 16 ohms.

SPDIF In/Out Jacks (J4, J5)

The SPDIF jacks are connected to the DAI ports on the ADSP-SC589.

  • SPDIF Input is connected to DAI0_PIN19.
  • SPDIF Output is connected to DAI0_PIN20.

USBi Connector (P2)

The USBi Connector on the SHARC Audio module allows for the use of the USBi adapter for bare metal programming.

+12v Input Power Jack (P3)

The SHARC Audio Module was design for a 12V DC input, but can operated from 10v to 20v input to the barrel jack. A 12v 1.5A DC power supply is recommended. The barrel connector on the SHARC Audio Module can handle up to 3A current.

MicroSD Card Slot (J6)

The MicroSD card slot on the SHARC Audio Module can be used to store the Linux OS as well as other data.

JTAG Interface (P1)

The JTAG interface allows for programming and debugging of the ADSP-SC589 using an ICE-1000 or an ICE-2000 emulator and CrossCore Embedded Studio.

Boot Mode Jumper (JP1)

The ADSP-SC589 has multiple boots modes. This jumper allows for three of the supported boot modes on the DSP, depending on jumper setting.

Jumper on Pins Boot Mode
1-2 SPI Boot
2-3 UART Boot
None No Boot

Pushbuttons (PB1, PB2)

Two GPIO pushbuttons are provided on the SHARC Audio Model. They are connected as follows:

  • PB1 is connected to PF_00
  • PB2 is connected to PF_01

Reset Button (RESET)

The Reset button resets all the hardware on the SHARC Audio Module. It will not reset anything on connected to the expansion connectors.

GPIO LEDs (LED10, LED11, LED12)

There are three GPIO controlled LEDs on the SHARC Audio Module. They are connected as follows:

  • LED10 is connected to PD_01
  • LED11 is connected to PD_02
  • LED12 is connected to PD_03

TWI Switch

The SHARC Audio Module has a TWI switch the can connect TWI0 or TWI1 on the ADSP-SC589 to the A2B and ADAU1761 on the board. This allows either the ARM core or the SHARC+ cores to access the A2B and ADAU1761 TWI control lines. PB_08 controls the switch.

PB_08 Connection
Low TWI0
High TWI1

Navigation - SHARC Audio Module
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