Smart Speaker

SMART-SPEAKER-BLOCK-DIAGRAM

NXP smart speaker is a high-efficiency boosted Class-D audio amplifier with a sophisticated SpeakerBoost acoustic enhancement and Protection algorithm in on-Chip DSP with temperature and excursion protection. The internal adaptive DC-to-DC converter raises the power supply voltage, providing ample headroom for major improvements in sound quality.

Product Details

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Block Diagram

Smart Speaker

Smart Speaker Block Diagram BD
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Supported Devices

Power Management

AC-DC Controllers

PMICs

  • PCA9450: Power Management IC (PMIC) for i.MX 8M Mini/Nano/Plus

LED Drivers

  • PCA9955BTW: 16-Channel Fm+ I²C-Bus 57 MA/20 V Constant-Current LED Driver

Wireless Connectivity

Wi-Fi® + Bluetooth® + 802.15.4

  • 88W8987A: 88W8987 (Automotive): 2.4/5 GHz Dual-Band 1x1 Wi-Fi® 5 (802.11ac) + Bluetooth® 5.2 Solution
  • 88W8987: 2.4/5 GHz Dual-Band 1x1 Wi-Fi® 5 (802.11ac) + Bluetooth® 5.2 Solution

Processors and Microcontrollers

i.MX 8 Applications Processors

  • i.MX8M: i.MX 8M Family - Arm® Cortex®-A53, Cortex-M4, Audio, Voice, Video

RFID

Connected NFC Tags

  • NTAG_I2C: NTAG I²C Plus 2K: NFC Forum Type 2 Tag with I²C Interface

Sensors

I3C/I²C Digital Temp. Sensors

  • PCT2075: I2C-Bus Fm+, 1 Degree C Accuracy, Digital Temperature Sensor And Thermal Watchdog

i.MX8 M Features

  • Multicore Processing Quad Arm Cortex®-A53; Cortex-M4F
  • GPU OpenGL® ES 3.1, OpenGL 3.0, Vulkan®, Open CL™ 1.2
  • Dual independent display interfaces MIPI-DSI (4-lanes); HDMI 2.0a
  • Video Playback: 4Kp60 with High Dynamic Range (h.265, VP9), 4Kp30 (h.264), 1080p60 (MPEG2, MPEG4p2, VC1, VP8, RV9, AVS/AVS+, h.263, DiVX), MJPEG - 8x8
  • Audio 6x I2S/SAI (20+ channels, each 32-bits @384 kHz); S/PDIF Tx/Rx; DSD512
  • Dual Camera Interfaces MIPI-CSI (4-lanes each)

NFC Features

  • Pass-through mode Up to 40 kbit/s using 64 byte SRAM buffer
  • Energy harvesting up to 15 mW, Wake up host with field detect pin
  • Password protection 32-bit password to restrict access to EEPROM and SRAM
  • Originality signature 32-byte elliptic curve based originality signature to protect cloning

Wireless Features

  • IEEE 802.11ac (wave2) with MU-MIMO receive
  • Virtual Dual MAC (via optimized DRCS)
  • Wi-Fi Stations (STA), Access Point (AP), Wi-Fi Direct (P2P)
  • WPA3 Encryption
  • Bluetooth 5.2 support
  • 2-antenna configuration for Wi-Fi/Bluetooth coexistence

Documentation

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