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Description

TF020 is a 20 Sec. PWM or DAC voice output with high quality speech ,2 input pin and 2 I/O pin simple speech.20 Sec. Voice Length at 6 KHz sampling and 4 bit hardware compression. Built-in oscillator for system clock without an external resistor. Maximum 64 voice groups. One Group contain several steps(voice section ); Maximum 700 steps for all the Groups. User selectable 8bit / 5bit / 4 bit data compression. Support three mode trigger function (Stand Alone, Serial Trigger Mode, CPU Command Mode ). Easy use development system is for function selection and voice combination . PC download the ROM code by the USB Port .

Functions

1. MAX voice file : 700
2. MAX Groups : 64
3. MAX Step : 700
4. Signal step mute length : 0.64 s ( 6k sample rate )
5. Operating Voltage range: 2.4V ~ 3.6V
6. Total Voice Duration : 20�� (120K Samples)
7. Input pin : 2
8. I/O pin : 2
9. Voice output : PWM and DAC
10. Sequential Key : TG1 -> 32 Groups.

TG2 -> 21 Groups.
TG11,TG12-> 1 Group

1. Debounce time : 50 us or 10 ms
2. On/Off function : only for TG1 & TG2
3. Trigger mode (for all Input pins) :

- Key Stand-alone Trigger Mode :

1. Edge/Level
2. Hold/Unhold
3. Retrigger/Irretrigger

1. Serial Trigger Mode :

Combinations of TG1 and TG2 to trigger maximum 64 Voice Group.

1. CPU Command Mode :

User command through TG1,TG2,TG11 & TG12 with serial CPU Interface to control the Multi-Playback function.

1. Output status (for each Output pin):
2. Stand by Status. (High/Low Status)
3. Busy Low Active.
4. Busy High Active.
5. LED Flash at 6 Hz.
6. LED Flash at 3 Hz.
7. LED Flash at 1.5 Hz.
8. LED Flash at 0.75 Hz.

1. Play rate level :

TF020 can provide different play rate in one code as follow

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