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R261 Datasheet(PDF) 8 Page - ON Semiconductor

Part # R261
Description  Advanced Noise Reduction Solution for Voice Capture Devices
PDF  28 Pages
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Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

R261 Datasheet(HTML) 8 Page - ON Semiconductor

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BelaSigna R261
http://onsemi.com
8
Application Diagrams
Figure 2. Typical Application Diagram for 26−ball WLCSP Package Option
Interrupt
Controller
Power Mgt
PLL and
Clock
Detection
Algorithm
Protection
Timers
SPI
UART
Output
Driver0
GPIO
BelaSigna R261−W26
Preamps
A/D
A/D
MIC0
MIC2
Microphone 0
Microphone 1
VREG (1V) or VDDA (2V)
Depends on microphone
I2C_SDA
** Multiplexed with other functionalities
EXT_CLK
VSSA
VSSD
10 nF
100 nF
VSSA
3.3 V
I2C_SCL
Optional
EEPROM
SPI_CS**
SPI_CLK**
SPI_SERI**
SPI_SERO**
PCM/I2S
Interpolation
D/A
Ch0
Ch1
DMIC
SLEEP_CTRL**
ALGO_CTRL**
DMIC_OUT
LSAD
CONFIG_SEL**
ATT_SEL**
VREG
AGND
VSSA
Debug Port
DEBUG_RX
DEBUG_TX
VSSD
Custom
Mode
Handler
DSP−Based
Application Controller
Two−Microphone
Noise Reduction
(BSE)
Algorithm
Control
Sleep
Control
H/W
Selection
Boot
Selection
Command
Handler
Mode
Switching
System
Monitoring
VDDO
VSSD
A_OUT1
AI3/VMIC/LOUT0
2.2 kW
I2C
1 mF1 mF1 mF1 mF1 mF
Mode
Config
Decimation
(16 kbit)
I2C



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