The Most Cost-effective
Intelligent Multi-mic Voice
Interaction Chip
Intelligent Voice Interaction Solution
optimal general computing power at the extreme cost, and supports the mainstream voice
With the computing power of the cost-effective dual-core Cortex -A7 CPU, R328 provides the
TM
pick-up and playback scheme without adding external DSP voice chip through high integrated
embedded VAD low-power voice wake-up module realizes the ultra-low power consumption in
audio formats, and works seamlessly with CPU, which can accelerate multimedia running
intelligent home markets.
algorithm and improve user experience. R328 is the ideal SoC for the intelligent speaker and
CODEC circuit. Integrated 8 PDM channels, 16 I2S channels, 3 ADC channels and 1 differential
the voice standby state. The excellent audio engine supports all mainstream high resolution
DAC channel provide audio input/output interface and a rich and flexible microphone array; the
Low Cost Solution
R328 integrates dual-core Cortex -A7, 64MB DDR2 or 128MB DDR3, and high performance
3 ADC, 1 DAC, 3 I2S, 8 DMIC, which provides the perfect voice interaction solution.
TM
High Integration
Low Power Architecture
With small LFBGA package, integrated 2 LDOs and companion WIFI&BT chip, R328 can
complete two-layer PCB board, and realize the extremely low cost solution.
The advanced 28nm process enables R328 to realize high energy efficiency and low heat.
The embedded VAD voice wake-up module realizes the ultra-low power consumption in
the voice standby state.
Industrial grade working temperature, 10-years chip life.
High Quality Assurance
CPU
•
32KB L1 I-cache + 32KB L1 D-cache per core
•
256KB L2 cache
• Embedded 64MB DDR2(R328-S2) or 128MB DDR3(R328-S3)
• Supports SPI Nand/Nor Flash
• Embedded with VAD voice wake-up module
• Supports 1 audio DAC and 3 audio ADC
• Supports 3 analog audio inputs and 1 analog audio output
codec, each I2S/PCM supports maximum 16 channels
• Up to 3 I2S/PCM controllers for connecting Bluetooth and external audio
• Integrated digital microphone, supports maximum 8 digital microphones
• Supports Symmetrical algorithm: AES, DES, 3DES
• Supports Hash algorithm: MD5, SHA, HMAC
• Supports Pubic Key algorithm: RSA
• Supports 256-bit hardware TRNG
•
Dual-core ARM Cortex -A7@1.2GHz
TM
Memory
Audio
Security
Engine
• Supports 160-bit hardware PRNG with 175-bit seed
• Supports 1K-bit EFUSE for chip ID and security application
• USB 2.0 OTG
• SDIO 3.0
• LEDC
Connectivity
• 2 x TWI, 2 x SPI, 4 x UART
WiFi
Package
XR829 or others
• 8-ch PWM, 4-ch GPADC, 1-ch LRADC
Linux 4.9
OS
LFBGA 143balls(R328-S2), LFBGA 144balls(R328-S3)
9.25mm x 9.15mm body size,0.65mm ball pitch,0.35mm ball size(R328-S2)
9.15mm x 11.1mm body size,0.65mm ball pitch,0.35mm ball size(R328-S3)
28nm HPC
Process
Audio Codec
I2S/PCM×3
DMIC
OWA
Audio
I cache
32KB
NEON
SIMD
A7
ARM Cortex-A7 ×2
D cache
32KB
Connectivity
USB2.0 OTG
SDIO3.0
(supports SPI Nand/Nor)
Thumb-2/
FPU
L2 cache
256KB
Security System
Crypto Engine
SID
SMC
SPC
CCU
Internal System
SPI×2
GIC
TWI×2
UART×4
GPADC (4 ch)
LRADC (1 ch)
PWM (8 ch)
LEDC
Timer
High Speed Timer
LDO
DMA
Thermal Sensor
VAD
Embedded Memory
512Mbit DDR2 or 1Gbit DDR3
- Intelligent speaker solution:
Intelligent RGB
LEDs
KEYs
RGB LEDs
24MHz Crystal
LRADC
AMIC1
AMIC1
PWM
LEDC
512Mbit DDR2
or 1Gbit DDR3
Internal
Reset Circuit
VAD
DCXO
SPI
SDIO3.0
PCM
UART
×
SPI NAND/NOR Flash
MIC1
MIC3(AEC)
MIC2
Cortex-A7×2
Thermal Sensor
SPEAKER
CLASS-D PA
LINEOUT
WiFi/BT
(XR829)
24MHz FOUT
USB2.0
Internal LDOs
Power Supply
Internal
32.768kHz
FOUT
Micro
USB
DCDC/LDO 3.3V
DCDC 0.9V
ABOUT ALLWINNER
Allwinner Technology is a leading fabless design company dedicated to smart application processor SoCs and smart analog ICs.
Its product line includes multi-core application processors for smart devices and smart power management ICs used by brands
worldwide.
With its focus on cutting edge UHD video processing, high performance multi-core CPU/GPU integration, and ultra-low power
consumption, Allwinner Technology is a mainstream solution provider for the global tablet, internet TV, smart home device,
automotive in-dash device, smart power management, and mobile connected device markets. Allwinner Technology is
headquartered in Zhuhai, China.
For more product info, please contact service@allwinnertech.com, or scan the QR code to follow us on Wechat.
This brief is for reference only and has no commitment. All content contained herein is subject to changes without notice.
©2019 Allwinner Technology Co., Ltd.
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