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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless% k$ q" o/ \# L) w. q
audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo) e+ t2 v+ e0 t8 w5 {9 T( F2 y
audio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active
" j: }* ]7 S1 y8 N! O% O( Q) knoise cancellation (ANC) technology integrated in the SoC.
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Full compliance with Bluetooth v5.2 EDR/BLE dual9 T0 y9 Y3 U7 I) |( b- F& I
mode specification
: M! U2 r8 p% p3 v6 ` Embedded 32-bit CPU as System Processor (SP)
' x U6 ^- Z; w ^3 N Embedded RISC-V CPU with floating point and4 [* O) a' |3 }# z. x
DSP/SIMD extension as Application Processor (AP)7 `" Z6 _6 z$ I& o3 p5 k
 Two 24-bit Audio DSP coprocessors
6 @3 v" f) w' g; _ Internal System in Package (SiP) flash memory& E4 i: L t# \0 p W9 p
 Stereo audio DAC/ADC and headphone drivers' ]6 F& A6 ]0 }2 c
 Up to 3 microphone inputs (2 analog and 1 digital
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 Embedded Bluetooth SBC/A2DP and wideband
' r9 \ ~# p+ m- h* Wspeech mSBC codec
; |; ~# }5 Z H( {" w2 F5 v) x) m Support AAC/G.722 decoder
( h* {9 T/ o5 N5 o( i Multipoint support for two A2DP simultaneous
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 Feedforward/Hybrid Active Noise Cancellation9 F1 s- G# O% ]4 T/ O6 e9 m
 Serial Interfaces: UART, I2C and SPI
0 S, d; Q! \* A2 q Digital Audio interfaces: PCM/I2S
e& t' U1 j+ Q! K. L- _ No external load capacitors are required for typical
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 Integrated configurable switch-mode regulators and
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0 ?; R% ^" V! f- }- s Integrated Lithium-ion battery charger and battery
' R: f: b6 K b( p7 \voltage monitor
' M/ h p; O) T7 I$ M. C" C$ R Hardware PWM dimming LED drivers4 g+ Y2 O: @, f3 u9 p
 Support over the air (OTA) firmware code update0 M7 r% L- y8 k3 Y
 Support unique device/manufacturing ID for
5 d& }9 H' O2 z0 Vcustomer’s code protection
0 T* J; r; z+ }! c m Ultra-low current for deep hibernation mode; K$ V0 x7 H9 y1 L) G* I3 C
 2-way power-line charger box communication (CBC)
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