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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless
, c- T A; {5 w4 |( X" h! ^audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo
1 \: m( V: a7 r! ]9 eaudio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active1 r3 V9 Z/ W7 G
noise cancellation (ANC) technology integrated in the SoC.
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, e+ v: ?8 q' ~3 u! O, s, f. ^Full compliance with Bluetooth v5.2 EDR/BLE dual s( H5 C, p- t I7 L
mode specification" F% X! E4 D' ?5 F( ]
 Embedded 32-bit CPU as System Processor (SP)0 @3 @& o0 m+ t: |& A& F" b. t; |
 Embedded RISC-V CPU with floating point and6 p( d8 T: A( u. _
DSP/SIMD extension as Application Processor (AP)
$ F; r$ W9 d( F% e Two 24-bit Audio DSP coprocessors; }1 K& ^/ A ~8 k* E( E
 Internal System in Package (SiP) flash memory, ]" j& ]0 L g8 H) @2 I* p8 v
 Stereo audio DAC/ADC and headphone drivers
) x( M9 f' W: A7 W: H$ H5 W Up to 3 microphone inputs (2 analog and 1 digital
) h- e( r! E+ U- K1 \MEMS)
. Z, H8 L+ d" ` Embedded Bluetooth SBC/A2DP and wideband9 ]' ^& G" e1 |5 Z% Z; _ t K
speech mSBC codec
4 x; @+ m6 X) } Support AAC/G.722 decoder
3 H {1 p* w5 g* [ ~ Multipoint support for two A2DP simultaneous
9 n- R. z, v u5 R& Sconnections
7 c% F5 D& L. B7 T4 e Feedforward/Hybrid Active Noise Cancellation
* D/ J) O8 z) t3 z; [$ \, y: Y Serial Interfaces: UART, I2C and SPI
* C$ t! ?) D" m$ _. y Digital Audio interfaces: PCM/I2S1 M$ x5 }/ ~9 F, W- C9 t
 No external load capacitors are required for typical
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! }. |9 S: k6 E: B8 F- {# B Integrated configurable switch-mode regulators and
8 {% m; ^( w. O; ilinear regulators1 B: [$ c/ e. j1 j: g T
 Integrated Lithium-ion battery charger and battery, L$ r Y+ Q( a$ e: [* M5 P4 r9 U1 c8 z
voltage monitor
( `" o; ^# `+ X6 i& M6 c/ w Hardware PWM dimming LED drivers
- v, q; c& w m: ^3 E Support over the air (OTA) firmware code update
; q& J! t2 C5 w* [# Y' q% k Support unique device/manufacturing ID for
/ ^; E; Q& H$ n7 mcustomer’s code protection
2 r+ z: Z+ X% u V( z4 {* m; Z. ^& @ Ultra-low current for deep hibernation mode
- ~3 {9 n* c8 _' {0 @6 ?9 z# G. M 2-way power-line charger box communication (CBC)
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