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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless
5 s' x' v _4 I& } \' K- naudio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo8 G" b+ ^$ ]* q. C" T3 r, P7 b
audio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active d j( A% W$ D
noise cancellation (ANC) technology integrated in the SoC.8 y8 P) t: P' U9 s! N; a
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Full compliance with Bluetooth v5.2 EDR/BLE dual
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 Embedded 32-bit CPU as System Processor (SP)
0 j0 f4 j* T. w I& S; }# C Embedded RISC-V CPU with floating point and
5 n* T! l2 R* g# P+ `1 ~3 X+ M6 xDSP/SIMD extension as Application Processor (AP). ^. C' ?9 d0 V9 H8 Q- i
 Two 24-bit Audio DSP coprocessors
~; [0 Z, d8 [& R0 n9 U Internal System in Package (SiP) flash memory
) E. F0 K4 v u Stereo audio DAC/ADC and headphone drivers2 Y/ V) S( \7 I z& B
 Up to 3 microphone inputs (2 analog and 1 digital
5 O; n# {( d% I, C* |MEMS)8 e7 D% F, C# @
 Embedded Bluetooth SBC/A2DP and wideband
0 m3 i- P8 e' g4 m3 lspeech mSBC codec( P9 f! _% W- Z( }( V
 Support AAC/G.722 decoder. u# t; N7 f5 n( w
 Multipoint support for two A2DP simultaneous
1 O+ g( s; l8 o3 f9 J( m) \. kconnections
' m# a# b2 P+ A _ Feedforward/Hybrid Active Noise Cancellation
% M4 R; n& M( o& ]' {* m3 V: U Serial Interfaces: UART, I2C and SPI. y5 p( a, _, S2 Q" v( n
 Digital Audio interfaces: PCM/I2S% `/ A5 R! G3 a
 No external load capacitors are required for typical
2 w$ [, ~6 q6 H" l/ _1 Tcrystal* [5 D0 a, \( y( ]' l0 a* A1 l/ c. }
 Integrated configurable switch-mode regulators and
# C9 f. J: r% H# _: c; k; Mlinear regulators
; P/ h! C6 n- B! ?) c Integrated Lithium-ion battery charger and battery& a0 L- p% [ G
voltage monitor
, ]. n4 C/ G/ A: h3 j3 [ Hardware PWM dimming LED drivers
; {& q* E. }: @" g Support over the air (OTA) firmware code update( v. _5 t! p D8 r
 Support unique device/manufacturing ID for+ L$ p, r3 y& p5 f
customer’s code protection
/ ]. v: K* p5 A Ultra-low current for deep hibernation mode
4 p6 d' v/ x4 F1 @5 l 2-way power-line charger box communication (CBC)
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