AVXX08 View Datasheet(PDF) - APLUS INTEGRATED CIRCUITS
Part Name
Description
Manufacturer
AVXX08 Datasheet PDF : 10 Pages
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3. BLOCK DIAGRAM:
TG
C
O
N
T
IO1
R
O
L
L
O
G
I
C
4-bit LOG_PCM
DECODER
VOICE
ROM
OUTPUT
BUFFER
AVxx08 Series
OSC
CLOCK
GENETATOR
TIMING
GENERATOR
PP
WW
MM
12
4. PAD DESCRIPTION:
Pad Name
IO1
TG
GND1, 2
PWM1
Vdd
PWM2
OSC
Pad No.
1
2
3, 7
4
5
6
8
ATTR.
I/O
I
Power
O
Power
O
I
Function
Status output or input for trigger.
Input for trigger.
Negative power supply.
Audio output.
Positive power supply.
Audio output.
Oscillator input. For using internal oscillator, connect OSC to GND.
5. CODE DEVELOPMENT & DEMO SYSTEM:
User can use “EzSpeech“ software tool to develop the desired functions. For details, please see EzSpeech
user manual. After finishing the code programming, user will get 2 files of “.bin” and “.htm”, the binary file
and function check list. User can download the “.bin” file into 4EA_DB demo board to demonstrate the
AVxx08 function. The related mapping of 4EA_DB is as below,
I/O Pin
AVxx08
TG
IO1 as Input
IO1 as Output
PWM1, PWM2
OSC
4EA_DB
PRA0
PRA1
PRB0
PWM1, PWM2
OSC1
4EA_DB
Description
PRA0 performs TG input.
PRA1 performs IO1 input mode.
PRB0 performs IO1 output mode.
PWM output to directly drive speaker.
OSC1 connect 150K ohms resistor to Vdd.
For some input type option, user may need to connect an external resistor. Please refer to the table below,
Input
Type
AVxx08
CDS + 1M
CDS
1M pull-low
10M pull-low
Floating
4EA_DB
CDS + 1M
CDS + 1M
Floating
Floating
Floating
4EA_DB
Description
The same.
Almost the same.
Need to connect 1M external resistor to GND.
Need to connect 10M external resistor to GND.
The same.
Once the function has been approved, user only need to send the “.bin” file to Aplus for code tape-out.
5
Rev 1.3 2003/9/18
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