MP3 Mini SD Card Module.pdf

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WTV020-SD MODULE
WTV020-SD-20S and WTV020-SD-16P
1.PRODUCT FEATURES ..................................................................................................................................................... 2
3.APPLICATION DIAGRAM .................................................................................................................................................. 3
4.APPLICATIONS ................................................................................................................................................................. 3
5.PINS .................................................................................................................................................................................. 4
5.1.WTV020-SD-20S ..................................................................................................................................................... 4
5.2.WTV020-SD-16P ..................................................................................................................................................... 5
6.MODULE SELECTION .................................................................................................................................................... 5
7.CONTROL MODES ........................................................................................................................................................... 6
7.1.MP3 MODE.............................................................................................................................................................. 6
7.1.1. ON/OFF(PALY/STOP) .................................................................................................................................. 6
7.1.2.NEXT ............................................................................................................................................................. 6
7.1.3.PREVIOUS .................................................................................................................................................... 7
7.2. KEY（3 group of voice） ........................................................................................................................................ 7
7.2.1. EDGE RETRIGGER ..................................................................................................................................... 7
7.3.KEY(5 group of voice) .............................................................................................................................................. 8
7.3.1. All KEYS ARE EDGE RETRIGGER .............................................................................................................. 8
7.3.2.EDGE RETRIGGER TIMING WAVEFORM ................................................................................................... 8
7.3.3.ALL KEYS ARE ON/OFF(unloop) .................................................................................................................. 9
7.3.4. ALL KEYS ARE ON/OFF(unloop) TIMING WAVEFORM .............................................................................. 9
7.3.5. ALL EKYS ARE ON/OFF（loop） ................................................................................................................ 9
7.3.6. ON/OFF(loop) TIMING WAVEFORM ............................................................................................................ 9
7.4.LOOP PLAY AFTER POWER ON .......................................................................................................................... 10
7.4.1.EDGE TRIGGER TO PAUSE/PLAY ............................................................................................................. 10
7.4.2. EDGE TIRGGER TO PAUSE/PLAY TIMING WAVEFORM ......................................................................... 10
7.4.3.LEVEL TRIGGER TO PAUSE/PLAY ............................................................................................................ 11
7.4.4.LEVEL TRIGGER TO PAUSE/PLAY TIMING WAVEFORM ......................................................................... 11
7.5.TWO LINE SERIAL MODE .................................................................................................................................... 11
7.5.1、I/O FUNCTION IN TWO LINE SERIAL MODE .......................................................................................... 11
7.5.2. VOICE ADDRESSES.................................................................................................................................. 11
7.5.3.TIMING WAVEFORM IN TWO LINE SERIAL MODE .................................................................................. 12
7.5.4. CODE DESCRIPTIONS ............................................................................................................................. 12
7.5.5. PROGRAM EXAMPLE ............................................................................................................................... 13
8.TYPICAL APPLICATION CIRCUIT .................................................................................................................................. 18
8.1.WTV020-SD-20S INNER CIRCUIT ....................................................................................................................... 18
8.2.WTV020-SD-16P INNER CIRCUIT........................................................................................................................ 19
8.3.MP3 MODE APPLICATION CIRCUIT(PWM OUTPUT) ......................................................................................... 19
8.4.MP3 MODE APPLICATION CIRCUIT(DAC OUTPUT) .......................................................................................... 20
8.5.KEY MODE(3 group of voice) APPLICATION CIRCUIT(PWM OUTPUT) .............................................................. 20
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8.6.KEY MODE(5 group of voice)APPLICATION CIRCUIT(PWM OUTPUT) .............................................................. 21
8.7.LOOP PLAY AFTER POWER ON(EDGE TIRGGER PAUSE/PLAY) APPLICATION CIRCUIT(PWM OUTPUT) ... 21
8.8.LOOP PLAY AFTER POWER ON (LEVEL TRIGGER PAUSE/PLAY)APPLICATION CIRCUIT(PWM OUTPUT) .. 22
8.9.TWO LINE SERIAL MODE APPLICATION
（PWM
OUTPUT） ........................................................................... 22
9.VOICE FILES IN SD CARD ............................................................................................................................................. 23
10. PACKAGE SIZE ............................................................................................................................................................ 23
10.1.WTV020SD-20S .................................................................................................................................................. 23
10.2.WTV020-SD-16P ................................................................................................................................................. 24
10.3、WTV020-SD-20S MODULE ............................................................................................................................ 25
11.SUPPLY INFORMATION................................................................................................................................................ 26
12.VERSIONS .................................................................................................................................................................... 26
1.PRODUCT FEATURES
◎Support
1GB SD card max. or SPI flash 64MB max.
◎Support
4 Bit ADCPM format files.
◎Sampling
rate from 6kHZ to 36KHZ for AD4 voice format.
◎Sampling
rate from 6KHz�½�16KHz for WAV voice format
◎16
Bit DAC / PWM audio output.
◎Key
mode，MP3 mode and two line serial mode are optional .Can choose one of them
◎
Copy voice files to SD card by PC.
◎
Working voltage: DC2.7�½�3.5V
◎
Quiescent current:: 3uA
2.SUMMARIZE
This module with MP3 mode, key mode(control 3 group of voice with volume adjustment or 5group of voice), two line
serial mode, and Loop play mode(after power on ,the module will play loop, with memory function in the mode) They are
optional. Customers can choose one of the modes in a module. Also can be customized.
MP3 mode:
With play/stop, next , previous, vol+,vol- functions
Key mode(3 group of voice):
One key trigger one group of voice,and with vol-, and vol+ .
are edge retrigger
all keys’ default trigger modes
Key mode(5 group of voice):
One key trigger one group of voice, trigger mode can be follows: 1. All keys are edge
retrigger.
2.All keys are ON/OFF (voice will not cycle after finished)
3.All keys are ON/OFF(voice will cycle after
finished)
Loop play mode:
After power on , it will play the voices automatically . it doesn’t need to tirgger the I/O . and with memory
function(when you playing voice 2, power was cut off,next time power on it will start from voice 2 or voice 3 .(Can be
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customized)
Two line serial mode:
WTV020-SD controlled by MCU sending data through CLK and DI . Can play voices in any address,
also voices(include mute) can combined to play in this mode.
Change voice by SD card reader and PC. SD card should be FAT format. Sampling rate supported from 6KHz�½�32KHz and
36KHz for ad4 voice format. 6KHz�½�16KHz for WAV voice format.
3.APPLICATION DIAGRAM
BUSY
PINS
WTV020-SD MODULE
SD CARD
AUDIO OUTPUT
4.APPLICATIONS
This module can use in automobile( car bug, parking radar, GPS navigation system), Intelligent home system, house bug,
Voice medical devices, household appliances(induction cooker, rice cooker, micro-wave oven), game machines, learning
tools(talking book), Intelligent traffic facilities(toll gate, parking lot), communications equipment( telephone), industrial
control( elevator ), toys and so on.
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5.PINS
5.1.WTV020-SD-20S
PIN
1
2
3
4
5
6
7
8
SYS.
DC+3.3V
SPK+
P07
P03
NC
NC
P02
NC
FUNCTION
+3.3V
Audio output
I/O
I/O
NC
NC
I/O
NC
PIN
9
10
11
12
13
14
15
16
SYS.
GND
DC+3.3V
SPK+
SPK-
P06
RST
P04
P05
FUNCTION
GND
+3.3V
Audio output
Audio output
BUSY
Reset
I/O
I/O
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5.2.WTV020-SD-16P
1
2
3
4
5
6
7
8
RESET
AUDIO-L
NC
SPK+
SPK-
NC
P04
GND
VDD
P06
NC
P02
P03
NC
P05
P07
16
15
14
13
12
11
10
9
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SYS.
RESET
AUDIO-L
NC
SP+
SP-
NC
P04
GND
P07
P05
NC
P03
P02
NC
P06
VDD
DESCRIPTION
RESET
DAC+
NC
PWM+
PWM-
NC
K3/A2/CLK
GND
K5/A4/SBT
K4/A3/DI
NC
K2/A1
K1/A0
NC
BUSY
VDD
FUNCTION
Reset pin
DAC audio output(+) to amplifier
NC
PWM audio output to speaker
PWM audio output to speaker
NC
Key /CLK in two line serial
Address pin
Key
Key /DI in two line serial
NC
Key
Key
NC
BUSY pin
Power input
6.MODULE
SELECTION
WTV020-SD-20S and WTV020-SD-16P are the same but chip package.
MODE
MP3
KEY（3 group of voice）
KEY（5 group of voice）
VOICES
256
3
5
5
TRIGGER
KEY
KEY
KEY
KEY
BUSY
YES
YES
YES
YES
AUDIO
DAC/PWM
DAC/PWM
DAC/PWM
DAC/PWM
EDGE IRRETRIGGER
EDGE RETRIGGER
ON/OFF(unloop)
NOTE
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5
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