INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 1/6

aFRC616 + Micro SD Card dual set solution

Data sheet

APLUS INTEGRATED CIRCUITS INC. Address:

3 F-10, No. 32, Sec. 1, Chenggung Rd., Taipei, Taiwan 115, R.O.C.

TEL:

886-2-2782-9266

FAX:

886-2-2782-9255

WEBSITE:

http://www.aplusinc.com.tw

Technology E-mail:

service@aplusinc.com.tw

Sales E-mail:

sales@aplusinc.com.tw

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 2/6

FEATURES

164 minutes in 12KHz & 8-bits playback sample rate.

3V ~ 5V single power supply.

20~25 uA low standby current.

Two playback sample rates are allocated :12KHz and 24KHz.

8-bits/16-bits resolution DAC/PWM voice output.

Up to 64 voice groups to store wav files.

3 control modes – SBT mode, MP3 mode and SPI mode.

8 levels of volume control.

10,000 insertion/removal cycles

DESCRIPTION

aFRC616 is a 16-bits audio processor embedded with 8bits-MCU and 16bits-DSP

engine. It can store 164 minutes of data on micro sd card with 1G bits external

memory in 12KHz, 8-bits sample rate.

User can select play back with12 KHz or 24 KHz sample rate, 8-bits/16-bits resolution

and PWM/DAC voice output .

Circuit Block Diagram

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 3/6

Audio/Voice supports the following voice formats.

ULAW8-12K PCM16-12K PCM16-24K

Micro SD – 1Gb 164min. 82min. 41min.

Source file 8bit-12k or higher Mono WAV file

Note : The SD card will be reformatted once it is inserted to the PC

VOICE OUTPUT

The aFRC616 supports PWM and DAC voice output. The PWM mode uses VOUT1 and

VOUT2 pin to drive speaker directly without external components.

The DAC mode uses VOUT2 pin to output current signal. User can use the signal to drive

audio amplifier or mix with other components in their applications to provide higher volume.

The following figure shows the circuit for different output methods: PWM, DAC-BJT,

DAC-AMP.

SBT MODE

. SBT Key (PX1) : Play the voice in sequence.

. Lock Key (PX2) : Keep playing in loop the voice selected by PX1.

. Volume Control (PD2) (vol-) : 8 Levels of volume control (Default :Maximum volume)

. Support enable/disable POWER ON LOOP

. Support enable/disable SBT LOOP

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 4/6

Typical Application Circuit : (Voice output : DAC-AMP)

*Note: 1. LDO input voltage range minimal is 3V~ 5V. LDO output current range minimal is 200mA.

2. PMOS Gate-Source voltage (VGS) minimal: ±10V, On-State Drain Current (Id(on)) minimal is

200mA.

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 5/6

SYSTEM STATE : SBT Mode

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 6/6

MP3 MODE

a. Play/Pause key (PX1): Play or Pause all voice groups contents.

b. Next key (PX2) : Play all the contents of the next voice groups.

c. Volume Control (PD1)(vol+) : Volume up key,

d. Volume Control (PD2)(vol-) : Volume down key

Note : 8 Levels of volume control (Default :Maximum volume)

Typical Application Circuit : (Voice output : PWM)

*Note: 1. LDO input voltage range minimal is 3V~ 5V. LDO output current range minimal is 200mA.

2. PMOS Gate-Source voltage (VGS) minimal: ±10V, On-State Drain Current (Id(on)) minimal

is 200mA.

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 7/6

SYSTEM STATE : MP3 Mode

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 8/6

SPI MODE

This SPI mode is specially designed for simple CPU interface. The aFRC616-Micro SD is

controlled by command sent from the host CPU. The pins PC3, PC2 and PC0 are used to

input command of data type word to the chip while the PX0 is the output pin from the chip

to the host CPU for feedback response.

a. /CS (PC2): (Chip Select) to initiate the input command.

b. SCK (PC0): (Serial Clock) to clock-in the command at rising edge.

c. SDI (PC3): (Data-In) to input the command bits.

d. SDO (PC1): (Data-Out) NC

e. /BUSY (PX0): (Busy Signal) to feedback response.

Note : 8 Levels of volume control (Default :Maximum volume)

Typical Application Circuit : (Voice output : DAC)

Note: 1. LDO input voltage range minimal is 3V~ 5V. LDO output current range minimal is 200mA.

2. PMOS Gate-Source voltage (VGS) minimal: ±10V, On-State Drain Current (Id(on)) minimal

is 200mA.

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 9/6

SYSTEM STATE : SPI Mode

Serial Command

Each input command contains 16-bit data. The following list shows the command format and

the summary of the available commands:

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 10/6

Command List

Play: The Play command is used to play voice.

The Play command is 0101 0000 00-XXXXXX in binary, from bit-15 to bit-0 where D5 to D0

are the 6 bits (0~63) assigned to the group address.

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 11/6

VOL Ctrl: The Volume control command is used to set volume level.

The VOL Ctrl command is 0101 0110 0000 0-XXX in binary, from bit-15 to bit-0 where D2

to D0 are the 3 bits (0~7) to set the volume level (max: 7, min: 0).

Sleep: The Sleep command is used to power-down the chip.

The Sleep command is 0111 0011 0000 0000 in binary, from bit-15 to bit-0. When the Sleep

command is executed, the chip enters in standby mode

Wake Up: The Wake Up command is used to power-up the chip.

The Wake Up command is 0111 0111 0000 0000 in binary, from bit-15 to bit-0.

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 12/6

AC CHARACTERISTICS

Timing Waveform

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 13/6

DC CHARACTERISTICS : aFRC616-SOP28

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 14/6

PACKAGE INFORMATION:

28Pin 300mil SOP Package

INTEGRATED CIRCUITS INC. aFRC616 - Micro SD

Ver. 1.21 15/6

HISTORY

Ver. 1.0 (2017/06/01)

- Original version data sheet for aFRC616-Micro SD.

Ver. 1.1 (2017/07/07)

- Add SPI Mode for aFRC616-Micro SD.

Ver. 1.2 (2017/07/12)

- Add SBT mode & MP3 mode system state diagram.