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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless
7 b; U9 C8 z/ U6 Y: J" E/ I, y% Faudio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo5 c% B4 D n6 [
audio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active5 `: E6 o5 {, G. s
noise cancellation (ANC) technology integrated in the SoC.2 n8 f h6 C3 l# n8 R2 _0 ~7 O+ q' G1 X- Y
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8 I) k% B: V) o4 w. r8 N1 q4 fFull compliance with Bluetooth v5.2 EDR/BLE dual+ f: \9 C+ @& d, w
mode specification& C9 c! ^: `8 w: n( H s/ f: b
 Embedded 32-bit CPU as System Processor (SP)( n& U7 \/ Y. @8 m; K' U; x- [
 Embedded RISC-V CPU with floating point and' {5 K3 r5 a [0 A. c1 B; p
DSP/SIMD extension as Application Processor (AP)
9 \$ j" b, T, Y' S- j Two 24-bit Audio DSP coprocessors+ G1 j6 ]- J4 ^( Q; ?
 Internal System in Package (SiP) flash memory5 ~( [0 {" I( T
 Stereo audio DAC/ADC and headphone drivers4 O# j% N0 j4 k! G3 j. }
 Up to 3 microphone inputs (2 analog and 1 digital E& l6 }! o, _. [
MEMS)
7 l$ d% @7 i2 t6 G8 {3 N* E% g6 X Embedded Bluetooth SBC/A2DP and wideband
! J; q; b. Y ~speech mSBC codec. Q% w+ X) E4 x4 ?2 r
 Support AAC/G.722 decoder& c2 k, Y9 R4 \6 S7 m
 Multipoint support for two A2DP simultaneous. l$ H; Q" T4 S- W- \0 w/ m
connections6 N2 r! q' g3 R" Q' b4 l
 Feedforward/Hybrid Active Noise Cancellation8 k* Q7 F E, r1 o4 Z
 Serial Interfaces: UART, I2C and SPI8 t3 z$ k" p8 X0 n+ E
 Digital Audio interfaces: PCM/I2S
9 u% V8 @" ?0 X6 D9 J No external load capacitors are required for typical* g- I8 d- ~/ B
crystal% K# ^( Y8 p7 f- z# F3 m3 S
 Integrated configurable switch-mode regulators and! @, x/ `! K8 _) S1 V
linear regulators/ ]/ f9 c1 _' n) ` e% o& D7 b" b
 Integrated Lithium-ion battery charger and battery
0 p* p. a' Q$ v. [$ ?voltage monitor
- Z4 D# e z2 h# N8 k6 u Hardware PWM dimming LED drivers9 m5 N' r w" |2 j8 r9 J' I) c" I
 Support over the air (OTA) firmware code update& Z/ }, ~! W6 f2 d* w7 ?: n
 Support unique device/manufacturing ID for
! ]3 J9 x- ^$ [4 mcustomer’s code protection
" ?! t& G) o# ]3 |1 e/ M Ultra-low current for deep hibernation mode3 c" U1 H% x6 D* |( o& C! _
 2-way power-line charger box communication (CBC)( d# ^- B) j3 _
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