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PAU1800 is a family of patented GreenRadioTM monolithic Bluetooth audio System-on-Chips (SoCs) mainly for wireless
' e/ u0 S: S. u% x4 y8 _audio/voice applications. It comprises 2 CPU and 2 DSP processors, a Bluetooth 5.2 EDR/LE dual mode radio, a stereo( E4 v: Z% C9 O9 j- h" a: b5 _; b
audio codec, a battery charger, memory, and host interface peripherals. PAU1800 series features low power digital active0 k7 E6 ?6 {' U9 }2 y
noise cancellation (ANC) technology integrated in the SoC.
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Full compliance with Bluetooth v5.2 EDR/BLE dual) _6 _$ N1 K8 D! ]$ E1 S: C# i
mode specification* ?2 m/ b. H8 J2 Q
 Embedded 32-bit CPU as System Processor (SP)
; L0 L* Q, ]) L/ F# x Embedded RISC-V CPU with floating point and; s4 I( a# y, K4 X' p
DSP/SIMD extension as Application Processor (AP)
" T3 T, ?. R0 l% h) @% u0 W Two 24-bit Audio DSP coprocessors
" A6 X7 t# y; a% \ Internal System in Package (SiP) flash memory
: S/ G* Y7 ], W+ l; D Stereo audio DAC/ADC and headphone drivers5 Z$ [8 q' n1 \9 m# A/ R1 _6 s
 Up to 3 microphone inputs (2 analog and 1 digital
- f1 ~+ Q0 p: b( j O, t4 `MEMS)
' O2 R5 s1 H% _' u% i Embedded Bluetooth SBC/A2DP and wideband$ @* Z; _! }, g* W6 `# q
speech mSBC codec
3 o! O" R, l2 l6 n$ v% o' ~ m Support AAC/G.722 decoder
9 m* e k) E+ E6 H- s4 O1 t7 T' H Multipoint support for two A2DP simultaneous
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: C8 R5 W. [) N6 B3 Z Feedforward/Hybrid Active Noise Cancellation
1 {0 m8 d. U/ u Serial Interfaces: UART, I2C and SPI
" ]" I6 j4 k$ L& L0 L1 D3 M0 y Digital Audio interfaces: PCM/I2S
- H4 |& [: p( P% D No external load capacitors are required for typical
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* v. E4 e, ~: B0 I Integrated configurable switch-mode regulators and" v8 o- x* l2 R
linear regulators/ J! @+ v: g# _+ c
 Integrated Lithium-ion battery charger and battery
7 V. ~* t) s# q9 K9 R) qvoltage monitor+ c( @/ ]6 [5 C/ Q$ o! l( u
 Hardware PWM dimming LED drivers
2 P+ P' _8 \) w7 L Support over the air (OTA) firmware code update
$ @" Z9 h; s8 b1 L6 I Support unique device/manufacturing ID for
: C$ n, y+ \6 k# r" Q* bcustomer’s code protection. d# s' j) w& t: {. t
 Ultra-low current for deep hibernation mode
" B, i" s, ]5 k( d" M5 V 2-way power-line charger box communication (CBC)
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