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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless9 e1 e# v( B$ J* F# |
audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo
# S) P; }2 [& }1 g0 U- K6 n2 Yaudio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active8 R! \5 @2 B% v; a9 I
noise cancellation (ANC) technology integrated in the SoC.( }: y7 @0 D P7 T! Z# s: r
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9 ^& f2 D: v/ p; Z# \7 cFull compliance with Bluetooth v5.2 EDR/BLE dual
$ k- ]; F! ~+ X4 `mode specification
* h' e, G9 P( y Z9 M Embedded 32-bit CPU as System Processor (SP)
8 [8 @% E/ Q% k' c$ R3 O! I Embedded RISC-V CPU with floating point and
4 H/ p0 d+ m" m3 HDSP/SIMD extension as Application Processor (AP)
, e8 ?1 s+ L7 ~5 }& R6 f- ? Two 24-bit Audio DSP coprocessors
5 {- Q9 M# v5 F- F" x5 `' r: d Internal System in Package (SiP) flash memory
0 |) X6 q0 l# S7 m0 a Stereo audio DAC/ADC and headphone drivers
9 j: M* f; W: C6 } Up to 3 microphone inputs (2 analog and 1 digital/ V: M! n9 v1 P% d% i
MEMS)
% b& |: j! X8 m& I7 s# P Embedded Bluetooth SBC/A2DP and wideband
$ h8 H+ S, F, _5 yspeech mSBC codec
' Q( ~# I! [& f) B Support AAC/G.722 decoder, `, z( A# L O% I
 Multipoint support for two A2DP simultaneous; |) l; K9 ^% o" t
connections
$ ?& d. H2 S$ v- M Feedforward/Hybrid Active Noise Cancellation
5 n! ]% g; I8 L) J" ] Serial Interfaces: UART, I2C and SPI
- O# K* U8 ], A- e- t$ W+ q Digital Audio interfaces: PCM/I2S
$ X' l Z9 W) K$ n2 ~ No external load capacitors are required for typical) ~2 Q+ I8 T* C
crystal2 H- d) I1 j4 e+ x) W; B' G
 Integrated configurable switch-mode regulators and- |1 }9 z% i8 L( ]9 N6 j1 V; A
linear regulators
0 w9 d B2 b# F4 d Integrated Lithium-ion battery charger and battery
* T% y% k) F3 t; `voltage monitor5 p; C5 {; o- |2 m5 q
 Hardware PWM dimming LED drivers
1 F+ V: A6 e E# t Support over the air (OTA) firmware code update; b* b0 `2 m% W6 Z! G* w- w
 Support unique device/manufacturing ID for
( v- V# A u t0 rcustomer’s code protection
! n' p: c T1 D& N ~0 b& H Ultra-low current for deep hibernation mode
6 [0 r9 X9 H7 m 2-way power-line charger box communication (CBC)) ~5 p' [- O5 V J" U5 u
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