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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless6 b% h4 y6 o7 {8 O/ `+ C
audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo
1 e) b. H: @+ I2 l& U1 ]7 f0 }/ ?& Daudio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active
7 x0 m C5 _' C% i+ `7 _noise cancellation (ANC) technology integrated in the SoC." q& W; D- h6 C1 }+ G
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, r8 ^2 \3 C8 v) C/ gFull compliance with Bluetooth v5.2 EDR/BLE dual1 t: |+ k8 L6 k$ _% \
mode specification
: o. J9 c5 _. [6 q7 K( ?- l Embedded 32-bit CPU as System Processor (SP)
( l+ n( |% d$ n8 S3 V: Y. e Embedded RISC-V CPU with floating point and
% l( F3 x4 j3 w, MDSP/SIMD extension as Application Processor (AP)
7 c1 X- L# d" F; [* Z* C3 e" [6 O Two 24-bit Audio DSP coprocessors9 s5 O# C$ R1 p- {- w
 Internal System in Package (SiP) flash memory1 i8 z/ m0 G* N% I
 Stereo audio DAC/ADC and headphone drivers
Z. R4 }* M' c Up to 3 microphone inputs (2 analog and 1 digital" K+ m# e1 f& N3 H( `1 x* `( c5 o; |- J
MEMS)
3 U3 B" g! F- D& h/ N Embedded Bluetooth SBC/A2DP and wideband- f$ N* ^# K2 c9 u& Q8 X; z) V! R
speech mSBC codec
9 c& ~7 Z' d0 T% b& U Support AAC/G.722 decoder5 M1 H2 K9 C# L, i0 w* k9 L/ J2 {& a
 Multipoint support for two A2DP simultaneous
' c- E; N% h0 h' N `connections8 r7 u3 l6 u! c0 z# J. p
 Feedforward/Hybrid Active Noise Cancellation( O% t' B5 A& ]& ^1 N3 Q1 L9 X
 Serial Interfaces: UART, I2C and SPI# q8 D: W- O& c$ H/ W: o$ n
 Digital Audio interfaces: PCM/I2S3 [. I; b! R8 {% G3 s
 No external load capacitors are required for typical$ _& y- W* u- l/ t" ]
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 Integrated configurable switch-mode regulators and
8 @7 U: ^& w( C: l2 {: ^linear regulators
6 L/ [2 g2 n4 K/ C6 r Integrated Lithium-ion battery charger and battery
2 z- k5 c2 K/ v' \1 avoltage monitor5 [3 N- ^0 I* }; }2 e- j
 Hardware PWM dimming LED drivers K/ j% g! ~3 F: H/ h3 B' A
 Support over the air (OTA) firmware code update: |$ A% G* Y U) N4 F4 O
 Support unique device/manufacturing ID for
. O+ j/ {: z- u) Mcustomer’s code protection
( m1 _+ y |# B6 M. }& g( Q Ultra-low current for deep hibernation mode/ G/ r [! _) I5 u5 V2 q
 2-way power-line charger box communication (CBC)0 R0 B/ E# t% w* M3 C
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