isd1740a Winbond Electronics Corp America, isd1740a Datasheet - Page 24

• Manufacturer Part Number: isd1740a
• Description: Multi-message Single-chip Voice Record&playback Devices
• Manufacturer: Winbond Electronics Corp America

Supply Voltage
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Record Current
Playback Current
Erase Current
Standby Current
Input Leakage Current
Input Current Low
Preamp Input Impedance R
AnaIn Input Impedance
MIC Differential Input
AnaIn Input Voltage
Gain from MIC to SP+/-
Speaker Output Load
Speaker Output Power
Speaker Output Voltage
AUD
Total Harmonic Distortion
Notes:
10 ELECTRICAL CHARACTERISTICS
PARAMETER
10.1
[2]
[3]
[4]
[5]
[1]
Conditions: V
LED output during Record operation.
V
Balanced input signal applied between MIC+ and MIC- as shown in the applications example. Single-ended MIC+ or
MIC- input is recommended to be less than 100 mV p-p.
REC
DC P
CCA
, V
,
PLAY
ARAMETERS
CCD
and V
CC
,
FT
= 4.5V, 8 kHz sampling frequency and T
CCP
R
V
V
V
V
V
I
I
I
I
I
I
V
V
A
R
Pout
V
I
THD
SYMBOL
DD_Record
DD_Playback
DD_Erase
SB
ILPD1
ILPD2
AUD
MIC+,
AnaIn
,
DD
IL
IH
OL
OH
IN1
IN2
MSP
OUT1
SPK
are connected together. V
FWD
R
MIC-
,
ERASE
0.7xV
0.7xV
V
V
MIN
SS
SS
2.4
-3
, VOL
6
8
-0.3
-0.3
DD
DD
and RESET must be at V
- 24 -
TYP
SSA
-3.0
670
313
117
V
0.5
42
15
49
7
1
DD
, V
[1]
SSP1,
A
0.3xV
0.3xV
V
= 25
SSP2
MAX
V
V
300
5.5
-10
20
20
20
r1
40
1
1
DD
DD
°C
and V
DD
DD
, unless otherwise stated.
ISD1700A SERIES
SSD
UNITS
CCD
mW
mW
mW
mW
mA
mA
mA
mV
mA
µA
µA
µA
k
k
dB
%
V
V
V
V
V
V
V
are connected together.
.
I
I
V
Sampling freq = 12 kHz
V
Power-up AGC
Power-up
Peak-to-Peak
Peak-to-Peak
V
4.7 µF, V
Across both Speaker pins
V
V
V
V
R
Typical buzzer
V
15 mV p-p 1 kHz sine wave,
Cmessage weighted
Force V
Force V
OL
OH
DD
DD
IN
DD
DD
DD
DD
DD
SPK
= 4.0 mA
= -1.6 mA
= 15~300 mV, AGC =
= 3 V
= 2.4 V
= 5.5 V, No load,
= 5.5 V, T=25qC
= 5.5 V
= 4.4 V
=4.5 V, R
= 8 (Speaker),
CONDITIONS
DD
SS
CC
, others at Vcc
= 2.4V~5.5V
[2]
[2]
EXT
[5]
1Vp-p,
1 kHz sine
wave at
AnaIn. R
= 8 .
= 390
[3] [4]
SPK