isd1900 Winbond Electronics Corp America, isd1900 Datasheet - Page 8

• Manufacturer Part Number: isd1900
• Description: Single-chip, Multiple-message Voice Record/playback Device 10.6- To 32-seconds Duration
• Manufacturer: Winbond Electronics Corp America

Notes:
Norm /
PLAYE
XCLK
PIN NAME
REC
[1]
Rosc
MIC-
V
V
LED
FT
CCA
CCD
: Address bits
/
/
/
FMC3
R
MODE
FMC2
/P
PIN #
19
20
21
22
23
24
25
26
27
28
S0
,
S1
I / O
O
I
I
I
I
I
I
I
I
I
,
S2
,
MIC- : Inverting input of the differential microphone signal. While
MIC- pin is disabled and must be floated.
Oscillator Resistor: Connect an external resistor from this pin to V
internal sampling frequency.
Analog Power Supply: Power supply for analog circuits.
LED output: During recording, this output is Low. Also,
momentarily at the end of playback.
addresses & toggle on-off. Debounce & internal pull-up existed.
various fixed-message configurations.
low active, recording from start to end addresses. Debounce & internal pull-up
existed.
• When
• When
External Clock: In Norm mode, low active and level-hold input. As
activated, Rosc pin accepts external clock input signal, provided resistor at Rosc
must be removed. Connecting this pin to High enables device running on internal
clock via Rosc resistor. If not used,
When
message configurations.
Feed-Through : Low active input, Level-hold, debounce & Internal pull-up required.
When
1Vp-p maximum input amplitude and feed-through to the speaker outputs.
Level-hold input.
• Norm : When set to High, the device operates under Address trigger condition.
•
Digital Power Supply: Power supply for digital circuits.
PLAYE
FMC2
REC
R
/P
S3
selected.
device reconfigures its pin definitions to fit various fixed-message configurations
utilizing
MODE
( When
,
: In Norm mode, level-hold (after 1 sec holding) or edge-trigger (toggle on-off),
: When
E0
MODE is active, FMC3
FT
: In Norm mode, low active input, edge-trigger playback from start to end
FMC3
0
0
0
0
1
1
1
1
,
: When set to Low, the device operates under direct trigger condition. The
R
R
is selected, the MIC+ input is configured to a single-ended input with
/P
/P
E1
FMC1
MODE
,
is set to Low, level-hold record operation is selected.
is set to High, edge-trigger & toggle on-off playback operation is
MODE
E2
- 8 -
,
FMC2
is active
&
FMC2
E3
0
0
1
1
0
0
1
1
is active,
&
are used to access the memory location.
Publication Release Date: September 11, 2007
):
FMC3
,
t
ogether with
FUNCTION
XCLK
FMC1
FMC2
pins as below table.
0
1
0
1
0
1
0
1
,
must be at high level.
t
ogether with
FMC1
# of fixed messages
&
FMC2
ISD1916
FMC1
1
2
3
4
5
6
7
8
, setup various fixed-
Revision 0
LED
&
SSA
FT
FMC3
to select the
pulses Low
is enabled,
, setup
XCLK