GPCR06B

5. SIGNAL DESCRIPTIONS

Mnemonic

PIN No.

Type

Description

PLAY_BUSY

1

O

The state of this pin will be high while playing.

RECLED

2

O

The state of this pin will be high while recording message.

RECO

3

I

RECO , the record-request pin of GPCR06A, normally is connected to a key.

GPCR06A is able to record voice as long as the key is being pressed (low active).

PLAY

4

I

PLAY , the play-request pin of GPCR06A, normally is connected to a key.

When the

key is pressed (falling edge triggering), GPCR06A is able to perform play function.

OPT*

5

I

the sampling rate, 4.3KHz or 6.0KHz, is optional.

AVDD, VDD

10, 6

Power

Analog and Digital power buses.

BPOPT

7

I

Beep option, the pin can be used to offer “beep’’ voice when press RECO key, i.e.,

BPOPT VDD bonding together will have no “beep” function; BPOPT floating will have

“beep” function

AVSS, VSS

9, 14

Ground

Analog and Digital ground buses.

TEST

8

I

GPCR06A is able to perform the testing mod when the pin is low.

OP1I

11

I

OP input of MIC preamplifier.

OP1O

12

O

OP output of MIC preamplifier.

AUDOUT

13

O

AUDIO voltage output.

Note: *OPT is the selection pin for various based frequency.

The shape looks like in the right figure.

The reason of OPT bonded near by VDD is that when

high frequency is selected, it will make connection between VDD and OPT easily.

OPT

VDD

BPOPT

Sampling rate = 6.0KHz

Bonding Point

With "beep" function

OPT

VDD

BPOPT

Bonding Point

Sampling rate = 4.3KHz

With "beep" function

OPT

VDD

BPOPT

Sampling rate = 6.0KHz

Bonding Point

Without "beep" function

OPT

VDD

BPOPT

Bonding Point

Sampling rate = 4.3KHz

Without "beep" function

© Generalplus Technology Inc.

Proprietary & Confidential

2

MAR. 03, 2005

Version: 1.1