AVH308 APLUS [Aplus Intergrated Circuits], AVH308 Datasheet - Page 6

• Manufacturer Part Number: AVH308
• Description: single-chip voice synthesizing CMOS IC
• Manufacturer: APLUS [Aplus Intergrated Circuits]

3. BLOCK DIAGRAM:
4. PAD DESCRIPTION:
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,
For some input type option, user may need to connect an external resistor. Please refer to the table below,
Once the function has been approved, user only need to send the “.bin” file to Aplus for code tape-out.
Pad Name
I/O Pin
GND1, 2
Input
Type
PWM1
PWM2
OSC
Vdd
IO1
TG
OSC
OSC
TG
TG
IO1
IO1
PWM1, PWM2
IO1 as Output
10M pull-low
IO1 as Input
1M pull-low
CDS + 1M
Pad No.
AVxx08
AVxx08
Floating
3, 7
GENETATOR
GENETATOR
OSC
CDS
TG
1
2
4
5
6
8
CLOCK
CLOCK
C
C
O
O
N
N
R
R
O
O
O
O
G
G
C
C
T
T
L
L
L
L
I
I
ATTR.
Power
Power
I/O
O
O
I
I
PWM1, PWM2
4EA_DB
4EA_DB
CDS + 1M
CDS + 1M
Floating
Floating
Floating
OSC1
PRA0
PRA1
PRB0
4-bit LOG_PCM
4-bit LOG_PCM
GENERATOR
GENERATOR
DECODER
DECODER
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.
VOICE
VOICE
TIMING
TIMING
ROM
ROM
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.
The same.
Almost the same.
Need to connect 1M external resistor to GND.
Need to connect 10M external resistor to GND.
The same.
5
W
W
M
M
OUTPUT
OUTPUT
P
P
BUFFER
BUFFER
1
1
W
W
M
M
P
P
2
2
4EA_DB
4EA_DB
Function
Description
Description
AVxx08 Series
Rev 1.3
2003/9/18