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GPCR20A Datasheet(PDF) 2 Page - Generalplus Technology Inc.

Part No. GPCR20A
Description  SINGLE-CHIP VOICE RECORD/PLAYBACK DEVICES
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Manufacturer  GENERALPLUS [Generalplus Technology Inc.]
Direct Link  http://www.generalplus.com
Logo GENERALPLUS - Generalplus Technology Inc.

GPCR20A Datasheet(HTML) 2 Page - Generalplus Technology Inc.

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GPCR20A
3. SIGNAL DESCRIPTIONS
Mnemonic
PIN No.
Type
Description
ROSC
10
I
The “ROSC” pin connects with an external resistor to VDD.
To cooperate with a
variable resistor, the frequency for recording and playing are adjustable to fulfill user’s
specifications.
REC0
20
I
The record-request pin for one voice box (20 sec) or the 1’st box of al 2 boxes (10 sec
for each).
REC0 with pull high resistor, is active in low and start recording to 1’st
voice box
REC1
21
I
REC1 , The record-request pin for the 2’nd box of 2 boxes (10 sec for each). REC1
with pull high resistor, is active in low and start recording to 2’nd voice box.
PLAY0
18
I
PLAY0 The play-request pin for one voice box (20 sec) or the 1’st box of 2 boxes (10
sec for each).
PLAY0 with pull high resistor, is active in low and start playing from
1’st voice box
PLAY1
19
I
PLAY1
, The play-request pin for the 2’nd box of total 2 boxes (10 sec for each).
PLAY1
With pull high resistor, is active in low and start playing from 2’nd voice box
MICP
2
I
Microphone differential positive input
MICN
3
I
Microphone differential negative input
AGC
5
I
Automatic gain control input
MICOUT
4
O
Analog output of MIC preamplifier
ADIP
6
I
Analog input of low pass filter
REC_BUSY
17
O
The state of this pin will be low while recording.
AUDP
23
O
PWM driver positive output
AUDN
24
O
PWM driver negative output
PVDD, PVSS
22, 25
Power
PWM power and ground
AVDD, AVSS
8, 1
Power
Analog power and ground
VDD, VSS
13, 11
Power
Digital power and ground
PLAY_BUSY
16
O
The state of this pin is low while playing.
KEY_OPT (*1)
7
I
Bounding option for select one voice box or two voice boxes
EDGE_OPT (*2)
12
I
Bounding option for KEY is active in level trigger or edge trigger
AUTO_OPT (*3)
7
I
Bounding option for REC KEY auto-play-back function when record is finished.
BEEP_OPT (*4)
9
I
Bounding option for BEEP sound is enable or disable
TEST
15
I
TEST pin active high is in test mode
(*1)
KEY_OPT: Bounding option for select one voice box or two voice
boxes,
IF KEY_OPT = 0
One voice box mode 512K.
IF KEY_OPT = 1
Two voice box mode 256K for each.
Default setting is 0
(*2)
EDGE_OPT: Bounding option for REC KEY auto-play-back function
when record is finished.
IF EDGE_OPT = 0
level trigger.
IF EDGE_OPT = 1
edge trigger.
Default setting is 0
(*3)
AUTO_OPT: Bounding option for REC KEY auto-play-back function
when record is finished.
IF AUTO_OPT = 0
No auto play when record is finished.
IF AUTO_OPT = 1
Auto play when record is finished.
Default setting is 0
(*4)
BEEP_OPT: Bounding option for BEEP sound is enable or disable.
IF BEEP_OPT = 0
No beep mode.
IF BEEP_OPT = 1
Beep mode
Default setting is 0
If there’s no bounding option selected, the default setting will be kept low.
© Generalplus Technology Inc.
Proprietary & Confidential
2
MAR. 03, 2005
Version: 1.1


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