ISD4004 datasheet(7/28 Pages) WINBOND

Part #	ISD4004

Description	Single-Chip Voice Record/Playback Devices 8-, 10-, 12-, and 16-Minute Durations

Download	28 Pages

Scroll/Zoom	100%

Manufacturer	WINBOND [Winbond]

Direct Link	http://www.winbond.com

Logo

7 / 28 page

ISD4004 Series

3

ISD

NON-INVERTING ANALOG INPUT (ANA IN+)

This pin is the non-inverting analog input that trans-

fers the signal to the device for recording. The an-

alog input amplifier can be driven single ended or

differentially. In the single-ended input mode, a

32 mVp-p (peak-to-peak) maximum signal should

be capacitively connected to this pin for optimal

signal quality. This capacitor value, together with

the 3 K

W input impedance of ANA IN+, is selected

to give cutoff at the low frequency end of the

voice passband. In the differential-input mode,

the maximum input signal at ANA IN+ should be

16 mVp-p

for

optimal

signal

quality.

The

circuit

connections for the two modes are shown in Fig-

ure 2 on page 2.

INVERTING ANALOG INPUT (ANA IN–)

This pin is the inverting analog input that transfers

the signal to the device for recording in the differ-

ential-input mode. In this differential-input mode,

a 16 mVp-p

maximum

input signal at ANA

IN–

should be capacitively coupled to this pin for op-

timal signal quality as shown in the ISD4004 Series

ANA

IN

Modes,

Figure

2.

This

capacitor

value

should be equal to the coupling capacitor used

on the ANA IN+ pin. The input impedance at ANA IN–

is nominally 56 K

W. In the single-ended mode, ANA

IN–

should

be

capacitively

coupled

to

V

SSA

through a capacitor equal to that used on the

ANA IN+ input.

AUDIO OUTPUT (AUD OUT)

This

provides

the

audio

output

to

the

user.

It is capable of driving a 5 K

W impedance. It is

recommended that this pin be AC coupled.

NOTE

The AUDOUT pin is always at 1.2 volts when

the device is powered up. When in play-

back, the output buffer connected to this

pin can drive a load as small as 5 KW.

When in record, a resistor connects AUD-

OUT to the internal 1.2 volt analog ground

supply.

This

resistor

is

approximately

850 KW, but will vary somewhat according

to the sample rate of the device. This rel-

atively high impedance allows this pin to

be connected to an audio bus without

loading it down.

SLAVE SELECT (SS)

This

input,

when

LOW,

will

select

the

ISD4004

device.

MASTER OUT SLAVE IN (MOSI)

This is the serial input to the ISD4004 device. The

master microcontroller places data on the MOSI

line one half-cycle before the rising clock edge to

be clocked in by the ISD4004 device.

MASTER IN SLAVE OUT (MISO)

This is the serial output of the ISD4004 device. This

output goes into a high-impedance state if the

device is not selected.

SERIAL CLOCK (SCLK)

This is the clock input to the ISD4004. It is generat-

ed by the master device (microcontroller) and is

used to synchronize data transfers in and out of

the device through the MISO and MOSI lines. Data

is latched into the ISD4004 on the rising edge of

SCLK and shifted out of the device on the falling

edge of SCLK.

INTERRUPT (INT)

The ISD4004 interrupt pin goes LOW and stays LOW

when an Overflow (OVF) or End of Message (EOM)

marker is detected. This is an open drain output

pin. Each operation that ends in an EOM or Over-

flow will generate an interrupt including the mes-

sage cueing cycles. The interrupt will be cleared

the next time an SPI cycle is initiated. The interrupt

status can be read by an RINT instruction.

Overflow Flag (OVF)—The Overflow flag indi-

cates that the end of the ISD4004’s analog mem-

ory

has

been

reached

during

a

record

or

playback operation.

End of Message (EOM)—The End-of-Message

flag is set only during playback operation when an

EOM is found. There are eight EOM flag position

options per row.

Similar Part No. - ISD4004

Manufacturer	Part #	Datasheet	Description
List of Unclassifed Man...	ISD4004	317Kb / 2P	Single-Chip Voice Record/Playback Devices 2- to 16-Minute Durations
Nuvoton Technology Corp...	ISD4004	931Kb / 36P	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE DURATION
List of Unclassifed Man...	ISD4004-08M	317Kb / 2P	Single-Chip Voice Record/Playback Devices 2- to 16-Minute Durations
Nuvoton Technology Corp...	ISD4004-08MPY	931Kb / 36P	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE DURATION
Nuvoton Technology Corp...	ISD4004-08MSY	931Kb / 36P	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE DURATION

More results

Similar Description - ISD4004

Manufacturer	Part #	Datasheet	Description
List of Unclassifed Man...	ISD4000	317Kb / 2P	Single-Chip Voice Record/Playback Devices 2- to 16-Minute Durations
	ISD4003	2Mb / 30P	Single-Chip Voice Record/Playback Devices 4-, 5-, 6-, and 8-Minute Durations
	ISD1200	1Mb / 25P	Single-Chip Voice Record/Playback Devices 10- and 12-Second Durations
Nuvoton Technology Corp...	ISD4004	931Kb / 36P	SINGLE-CHIP, MULTIPLE-MESSAGES VOICE RECORD/PLAYBACK DEVICES 8-, 10-, 12-, AND 16-MINUTE DURATION
List of Unclassifed Man...	ISD33120	1Mb / 30P	SINGLE-CHIP VOICE RECORD/PLAYBACK DEVICES 2-, 2.5-, 3-, AND 4-MINUTE DURATIONS
	ISD1000A	402Kb / 20P	Single-Chip Voice Record/Playback Devices 16- and 20-Second Durations
	ISD1400	1Mb / 25P	Single-Chip Voice Record/Playback Devices 16-and 20-Second Durations
	ISD5008	1Mb / 47P	SINGLE CHIP VOICE RECORD PLAYBACK DEVICE 4-, 5-, 6-, AND 8- MINUTE DURATIONS
Winbond	ISD1810	278Kb / 18P	Single-Chip, Single-Message Voice Record/Playback Device 8- to 16-Second Durations
Generalplus Technology ...	GPCR20A	266Kb / 12P	SINGLE-CHIP VOICE RECORD/PLAYBACK DEVICES

More results

ISD4004 Datasheet(PDF) 7 Page - Winbond

ISD4004 Datasheet(HTML) 7 Page - Winbond

Similar Part No. - ISD4004

Similar Description - ISD4004

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28

Datasheet Download

Link URL