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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless% v9 M3 k" C0 D
audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo- j' V7 G2 w0 s
audio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active
* i P1 A3 S7 Ynoise cancellation (ANC) technology integrated in the SoC.
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Full compliance with Bluetooth v5.2 EDR/BLE dual- [0 E' M% H I/ V. Z
mode specification
: b: I/ |) b' S Embedded 32-bit CPU as System Processor (SP)9 l1 X8 `. H- F1 W
 Embedded RISC-V CPU with floating point and
* V8 f; L3 \# Z o, wDSP/SIMD extension as Application Processor (AP)
9 e/ x) F" o5 U) |- C Two 24-bit Audio DSP coprocessors
: l3 R8 h/ q3 W* a6 H Internal System in Package (SiP) flash memory5 C- z y8 U1 e% K! ?
 Stereo audio DAC/ADC and headphone drivers- z/ L; j4 ?" N1 f- N/ y
 Up to 3 microphone inputs (2 analog and 1 digital6 v ]5 {' W# D! @
MEMS)
j% a! ]3 U: ^1 A6 X! ~ Embedded Bluetooth SBC/A2DP and wideband
: u+ V5 x! [+ {+ r& \+ T7 S! hspeech mSBC codec
; m' }+ {8 K `1 p9 T6 C/ a Support AAC/G.722 decoder
6 s9 M5 ?6 @; R& r2 C" \ Multipoint support for two A2DP simultaneous/ _: ^7 G- Y; u
connections
# }- E+ f" S L Feedforward/Hybrid Active Noise Cancellation! p+ _, Y; o8 o% ~1 j: h
 Serial Interfaces: UART, I2C and SPI
; V" r1 b+ Y: m4 T6 q Digital Audio interfaces: PCM/I2S
/ b% P% T) |( H: Z/ T2 \* Z( g No external load capacitors are required for typical1 z6 f. M4 l) B. ?( O! j+ ?4 s
crystal
0 D: }* h/ X1 Q# J8 |+ B {+ h Integrated configurable switch-mode regulators and( v3 [$ E( e& K9 t9 G4 y
linear regulators9 U j+ R3 `7 O6 `" m8 ]
 Integrated Lithium-ion battery charger and battery
& E2 G) d# l( dvoltage monitor) z. J7 e9 D2 ?* C* Z# y
 Hardware PWM dimming LED drivers
2 Z- W7 H, Z% C) h8 s" |8 P2 y( W Support over the air (OTA) firmware code update
4 i4 ~2 ]* w! k" U K( b! ~ Support unique device/manufacturing ID for
! ?: c8 w& t- ^customer’s code protection
6 W( Q! v3 U/ p Ultra-low current for deep hibernation mode. J7 Q# n+ @8 T* T8 M% I
 2-way power-line charger box communication (CBC)4 l- ]+ h- h, R6 ?
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