APR9301-V2-1 View Datasheet(PDF) - APLUS INTEGRATED CIRCUITS

Part Name

Description

Manufacturer

APR9301-V2-1

for Single 20 to 30 Second Message Single-Chip Voice Recording & Playback Device

APLUS INTEGRATED CIRCUITS 

APLUS

APR9301-V2

Figure 3 Sample Application for the APR9301-V2

NC

1

NC

2

NC

3

NC

4

NC

5

/C E

6

OscR

7

NC

8

52K

NC

9

NC

10

NU1

11

V SS

12

SP+

13

SP-

14

28

VCCD

27

/RecL

26

VSSD

25

/LED

24

NC

23

/P la yE

22

NC

21

AnaOut

20

A n a In

19

AGC

18

M icRef

17

M icIn

16

VccA_R

15

VccA_L

0.1uF

VCC(6VDC)

VCC

1K

0.1µF

47u

8 Ohm Speaker

0.1µF

Notes:

NC = No Connect (must be floating).

Pins 23 and 27 have internal pull-up resistors.

The typical sampling frequency is 6.4 kHz with OscR = 52 kW.

0.1µF

Substrate should be connected to GND.

For low power applications

use double pole switch.

VCC

150K

220K

VCC

1K

4.7K

4.7µF

22µF

E le c tre t

Microphone

4.7K

Table 1 Typical Dependence of Sampling Frequency and Total Voice Duration on OscR Resistor Value

(VCCA = VCCD = 6V; VSSA = VSSD = 0V; TA = 25oC)

Pin 7 - OscR

Typical Sampling Frequency Cutoff Frequency (3 dB Point) Typical Total Voice Duration

38 kW

52 kW

67 kW

89 kW

8 kHz

6.4 kHz

5.3 kHz

4.0 kHz

3.4 kHz

2.7 kHz

2.3 kHz

1.7 kHz

16 seconds

20 seconds

24 seconds

32 seconds

g

Page 3

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