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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless; N8 f/ I8 {/ V) Z) K
audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo) T" e# L+ |1 v* }# I
audio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active
3 c7 P( N4 b9 E1 H# dnoise cancellation (ANC) technology integrated in the SoC.
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0 s; L' o6 n! {7 L3 eFull compliance with Bluetooth v5.2 EDR/BLE dual
( i! s$ S7 @, V1 E0 U7 J$ I! |mode specification
/ r& m; H. Q3 y, d8 r0 }3 { Embedded 32-bit CPU as System Processor (SP)
4 f# @- e0 z6 X3 v Embedded RISC-V CPU with floating point and+ y, l4 j7 E2 e H8 h
DSP/SIMD extension as Application Processor (AP)
9 b/ V/ F( t8 K/ r" E) U0 Z+ ] Two 24-bit Audio DSP coprocessors
3 H E' O6 q, ?; g+ x Internal System in Package (SiP) flash memory4 n- J U( R: h) }+ u
 Stereo audio DAC/ADC and headphone drivers# S1 v: J1 |/ m/ a0 z
 Up to 3 microphone inputs (2 analog and 1 digital
# a$ `$ I( x+ `MEMS)$ b4 K1 f2 v# s
 Embedded Bluetooth SBC/A2DP and wideband9 c5 q& T! J+ e# n3 p0 @
speech mSBC codec6 ] M- V( L& a+ v. J! u
 Support AAC/G.722 decoder/ Z- l5 z2 ]; ?) Z& v" ~$ U7 O
 Multipoint support for two A2DP simultaneous
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* h' t7 F8 B$ X/ U6 v0 W Feedforward/Hybrid Active Noise Cancellation
: B4 D3 t( R' e2 I Serial Interfaces: UART, I2C and SPI
' D/ @$ \: C% A. k0 K5 m+ U Digital Audio interfaces: PCM/I2S
, d5 l4 w$ _ h; R" a' R No external load capacitors are required for typical r$ Z+ V$ s; U ]! F
crystal
4 R- H" w+ M% h6 y Integrated configurable switch-mode regulators and
- { u' P4 J {( S/ B U# W) elinear regulators' ?9 w0 k, s! F' N
 Integrated Lithium-ion battery charger and battery
3 M v" S2 J1 I7 ~voltage monitor* l6 a( N, |4 H5 n
 Hardware PWM dimming LED drivers$ P/ p; `" D( o! e- v7 }* @
 Support over the air (OTA) firmware code update, }. T* ]: V0 I' z% V( I5 B; w
 Support unique device/manufacturing ID for
$ v8 {+ _7 C! d" D; H8 ~customer’s code protection
0 e1 ^0 H# o; [5 W Ultra-low current for deep hibernation mode2 J: i& V$ P. A8 N; e& o8 c' V r
 2-way power-line charger box communication (CBC)
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