N571P032 Datasheet PDF - nuvoton

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N571P032
nuvoton

Part Number N571P032
Description 32-BIT VOICE PROCESSOR
Page 19 Pages


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N571P032
Data Sheet
32-BIT VOICE PROCESSOR
(NuVoice)
Release Date: January, 2015
Version 1.4
-1-



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N571P032 Data Sheet
Table of Contents
1. General Description......................................................................................................3
2. Features.........................................................................................................................3
3. Functional Block Diagram............................................................................................5
4. Pin Configuration..........................................................................................................6
4.1 Pin Diagram ................................................................................................................6
4.2 Pad Description ...........................................................................................................6
4.3 Alternate Function List of GPIO ..................................................................................8
5. Typical Application Circuit...........................................................................................9
5.1 Playback......................................................................................................................9
5.2 Recording and Playback ...........................................................................................10
5.3 Application without SPI-Flash....................................................................................11
6. Supported Codec ........................................................................................................12
7. Electrical Characteristics ...........................................................................................13
7.1 Absolute Maximum Ratings.......................................................................................13
7.2 DC Electrical Characteristics .....................................................................................13
7.3 AC Electrical Characteristics .....................................................................................14
7.3.1 Internal 46MHz RC Oscillator .......................................................................................14
7.4 Analog Characteristics ..............................................................................................14
7.4.1 10-bit SAR ADC ...........................................................................................................15
7.4.2 Programmable Gain Control (for Voice Recorder) ........................................................15
7.4.3 Voutx (3.3V LDO) for External Driving ..........................................................................15
7.4.4 Low Voltage Reset .......................................................................................................16
7.4.5 Voltage Detector ..........................................................................................................16
7.4.6 Power Amplifier ............................................................................................................16
8. Ordering Information ..................................................................................................17
9. Revision History..........................................................................................................18
Release Date: January, 2015
Version 1.4
-2-



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N571P032 Data Sheet
1. General Description
N571P032 is a basic version of NuVoice, makes a cost-effective member of N572F065,
N572F072/P072 series. CPU is Cortex-M0, the same core as that of the whole series, but
running in a lower frequency at 23MHz. The system resource is 32KB OTP and 4KB SRAM.
Integrating analog peripherals, like pre-amplifier, ADC, hardware mixer, and DAC with PA, this chip
saves a lot of system design effort and cost.
For N571, the major application is recording and long duration in this version. Regarding voice
change or other algorithms running in N572, N571 could run the algorithms of simplified and single
features by modification based on requirements of MIPS and SRAM.
Following is a brief table of all Part No. of N571 and N572 Series:
Part No.
Program ROM
SRAM
CPU freq
SPI interface
GPIO
USB
N571P032
32KB OTP
4KB
23MHz
Master/Slave
23MHz, 1 set
24
N/A
N572F072
72KB Flash
8KB
48MHz
N572P072
64KB OTP +
8KB Flash
8KB
48MHz
Master/Slave mode 12MHz, 1 set
Master mode 36MHz (3.3V), 1 set
32 32
N/A N/A
N572F065
64KB Flash
8KB
48MHz
Master mode
12MHz, 2 sets
32
FS/12Mbps
2. Features
Core
ARM® Cortex-M0 core runs up to 23MHz
Support low power sleep mode
Single-cycle 32-bit hardware multiplier
NVIC for the 16 interrupt inputs, each with 4-level of priority
Serial Wire Debug supports
Widely operating voltage range from 2.4V to 5.5V
PROM Memory
32KB OTP
SRAM Memory
4KB embedded SRAM
Clock Control
Support PLL, up to 46MHz from 32768Hz Crystal
External 32KHz crystal input for RTC function and system clock
Internal 46MHz RC oscillator
GPIO
24 GPIO
Timers
3 sets of the timer with 8-bit pre-scalar and 16-bit timer.
Release Date: January, 2015
Version 1.4
-3-



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N571P032 Data Sheet
Counter auto reload.
IR carrier generator
One fixed frequency timer
Watch Dog Timer
Multiple clock sources
8 selectable time out period (around 30ms~8s based on selecting 32K crystal oscillation as
clock source)
Able to wake up power down/sleep
Interrupt or reset selectable on watchdog time-out
RTC
Support time out interrupt
Support wake up function
PWM/Capture/Compare Timer
SPI
One sets of SPI device
Master mode up to 23MHz (3.3V)
Support master/slave mode
Two 32-bit buffers
ADC
10-bit with 220K conversion rate
1 differential pair input for microphone input
Build in H/W DC remove filter
Build in up to 16 times up_sampling/filtering/decimation HW to get around additional 2 bits
SNR
Build in Programmable Gain Control for microphone input
Additional 2 inputs for general ADC
Build in LDO for PGC/ADC bias
APU
13-bit DAC+PA
H/W mixer with 2 channel PCM inputs
Build in H/W 4 times PCM repeater and image cancellation filter to remove metal soundliked
noise
Embedded power amplifier
7-level volume control
Voltage Detector
with 2 levels: 3.0V/2.7V
Voltage Output
Built-in 3.3V regulator power supply Voutx (LDO33) support chip core power and driving
external spi-flash
Low Voltage Reset 2.2V typical
Operating Temperature: 0~70
Package
All Green package (RoHS)
LQFP 48-pin
COB
Release Date: January, 2015
Version 1.4
-4-



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