Bluetrum Technology BT8812E2 Manuale utente

Bluetrum Technology

BT8812E2

Audio Player Microcontroller

Versions: 0.0.1

2020/02/04

Declaration

Bluetrum reserves the right to make changes without further notice to any products herein

to improve reliability, function or design.

For further information on the technology, product and business term, please contact

Bluetrum Company.

For sales or technical support, please send email to the address:

Sales: sales@bluetrum.com

Technical: project@bluetrum.com

Bluetrum Technology

Revision History

Date

Version

Comments

Revised by

2020-02-04

0.0.1

First draft

Leo

Table of content 3

Table of Contents

TABLE OF CONTENTS............................................................................................................................................. 3

1PRODUCT FEATURES ..................................................................................................................................... 4

2PACKAGE DEFINITION ................................................................................................................................... 5

2.1 PIN ASSIGNMENT..................................................................................................................................................5

2.2 PIN DESCRIPTIONS ................................................................................................................................................6

3CHARACTERISTICS......................................................................................................................................... 8

3.1 PMU PARAMETERS............................................................................................................................................... 8

3.2 IO PARAMETERS ...................................................................................................................................................8

3.3 AUDIO DAC PARAMETERS ......................................................................................................................................9

3.4 AUDIO ADC PARAMETERS ......................................................................................................................................9

3.5 BT PARAMETERS................................................................................................................................................... 9

3.6 CURRENT PARAMETERS ........................................................................................................................................10

4PACKAGE INFORMATION ............................................................................................................................ 11

1Product Features 4

1Product Features

CPU and Flexible IO

32bit High performance CPU with DSP

instruction

Program memory: internal 2M bit flash

Flexible GPIO pins with Programmable pull-up

and pull-down resistors;

Support GPIO wakeup or interrupt;

Bluetooth Radio

Compliant to Bluetooth 5.0 specification

(QDID: 115952);

TX output power +2dBm in typical;

RX Sensitivity with -90.5dBm @Basic Rate;

Audio Interface

Audio codec with 16bit mono DAC and 16bit

mono ADC;

Support flexible audio EQ adjust;

Support Sample rate 8, 11.025, 12, 16, 22.05,

32, 44.1 and 48KHz;

Mono MIC amplifier input;

High performance mono audio ADC with

90dB SNR;

High performance mono audio DAC with

95dB SNR, with headphone amplifier output;

Peripheral and Interfaces

Three 32-bit timers;

One multi-function 32-bit timers, support

Capture and PWM mode;

WatchDog;

Three full-duplex UART;

Sixteen Channels 10-bit SARADC;

Build in PMU, such as Charger/Buck/LDO;

Package

QFN32L;

Temperature

Operating temperature: -40℃to +85℃;

Storage temperature: -65℃to +150℃;

2Package Definition 5

2Package Definition

2.1Pin Assignment

Figure 2-1 Pin assignment for QFN32L

2Package Definition 6

2.2Pin Descriptions

Table 2-1 QFN32L pin description

Pin No.

Name

Type

Function

E-GND

GND

E-Pad Ground

PE7

I/O

ADC9

TX0-G4

HSTRX-G4

PE7

PE0

I/O

TX0-G6

PE0

VUSB

PWR

VUSB power input

VDDIO

PWR

VDDIO power output

VBAT

PWR

VBAT power input

PWR

Buck inductor connect pin

DGND

GND

Digital Ground

VDDBT

PWR

BT power

PWRKEY

Power key input

BT_RFGND

GND

BT RF Ground

BT_ANT

BTANT

BT_AVDD

PWR

BT power

BT_OSCI

26M OSC input

BT_OSCO

26M OSC output

PB4

I/O

ADC6

SPI0CLK-G3

RX0-G3

HSTRX-G8

PB4

PB3

I/O

ADC5

SPI0DO-G3

TX0-G3

HSTRX-G3

PWM2-T3

PB3

AUXR0/PA7

I/O

ADC2

AUXR0

TX0-G1

TX1-G1

HSTRX-G1

PWM1-T3

PA7

AUXL0/PA6

I/O

ADC1

AUXL0

RX0-G1

RX1-G1

HSTRX-G6

2Package Definition 7

PWM0-T3

PA6

MICL/PF2

I/O

ADC10

MIC

TX0-G7

PF2

VCMBUF

VCM buffer output

DACL

DAC L

VDDDAC

PWR

DAC power output

VDDPA

PWR

PA power input

AGND

GND

DAC Ground

Note: I/O: Digital input/output; I : Digital input; A : Analog Pin; PWR: Power Pin; GND: Ground.

3Characteristics 8

3Characteristics

3.1 PMU Parameters

Table 3-1 PMU voltage input Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

VUSB

Charger Voltage input

3.0

5.0

5.5

VBAT

Voltage input

3.0

3.7

5.0

Table 3-2 3.3V LDO Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

VDDIO

3.3V LDO voltage output

3.3

Light Loading condition

△VVDDIO

Output Mismatch 1-sigma

VDDIO=3.3v

ILOAD

Maximum output current

150

@VBAT=3.6v

ISC

Short Circuit Current Limit

300

@VBAT=3.8v

Table 3-3 1.6V LDO Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

VDDBT

1.6V LDO voltage output

1.6

Light Loading condition

△VVDDBT

Output Mismatch 1-sigma

VDDBT=1.6v

ILOAD

Maximum output current

100

@VBAT=3.0v

ISC

Short Circuit Current Limit

200

@VBAT=3.8v

Table 3-4 1.2V LDO Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

VDDCORE

1.2V LDO voltage output

1.2

Light Loading condition

△VVDDCORE

Output Mismatch 1-sigma

VDDCORE=1.2v

ILOAD

Maximum output current

@VBAT=3.6v

ISC

Short Circuit Current Limit

120

@VBAT=3.8v

3.2 IO Parameters

Table 3-5 I/O Parameters

GPIO—Electrical Characteristics

Symbol

Description

Related GPIO

Min

Typical

Max

Units

Conditions

VIL

Low-level input voltage

-0.3

1.27

VDDIO=3.3V

VIH

High-level input voltage

2.03

3.6

VDDIO=3.3V

DriverAbility 1

Output DriverAbility 1

VDDIO=3.3V

DriverAbility 0

Output DriverAbility 0

VDDIO=3.3V

RPUP0

Internal pull-up resister 0

KΩ

RPUP1

Internal pull-up resister 1

0.24

0.3

0.36

KΩ

RPUP2

Internal pull-up resister 2

160

200

240

KΩ

RPDN0

Internal pull-down resister 0

KΩ

RPDN1

Internal pull-down resister 1

0.24

0.3

0.36

KΩ

RPDN2

Internal pull-down resister 2

160

200

240

KΩ

3Characteristics 9

3.3 Audio DAC Parameters

Table 3-6 Audio DAC Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

SNR

VCM cap=1uF

VDDDAC cap=1uF

with A-wt filter

Output -3dBV

Fin=1KHz

THD+N

-86

VCM cap=1uF

VDDDAC cap=1uF

with A-wt filter

Output -3dBV with 10K loading

Fin=1KHz

Output Range

Maximum output voltage

2.6

Vpeak-peak

32ohm Loading

3.4 Audio ADC Parameters

Table 3-7 Audio ADC Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

SNR

VCM cap=1uF

VDDDAC cap=1uF

with A-wt filter

Input sine amplitude, 850mV

RMS

Fin=1KHz

THD+N

-87

VCM cap=1uF

VDDDAC cap=1uF

with A-wt filter

Input sine amplitude, 850mV

RMS

Fin=1KHz.

Input Range

Input sine wave peak amplitude

VCM

From aux input, aux 0db gain,

VCM represent VCM voltage.

3.5BT Parameters

Table 3-8 BT Parameters

Characteristics

Min

Typical

Max

Unit

Conditions

Maximum Transmit Power

dBm

RMS DEVM

5.5

Maximum TX power

2-DH5 packet

Peak DEVM

12.5

EDR Relative Transmit Power

-0.2

Sensitivity @ Basic Rate

-90.5

dBm

BER=0.1%, using DH5 packet

Sensitivity @ EDR

-89.5

dBm

BER=0.01%, using 2-DH5 packet

3Characteristics 10

3.6 Current Parameters

Table 3-9 Current Parameters

Sym

Characteristics

Min

Typ

Max

Unit

Conditions

IRTC

RTC mode current

4.2V input, room temp.

Sleep

Sleep current

500

2000

3.3V input, room temp

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