Rainbow Electronics ISD18B12 - Manual (Page 12)

ISD18B12
- 12 -
7. ELECTRICAL CHARACTERISTICS
7.1. DC P ARAMETERS
PARAMETER SYMBOL MIN [2] TYP [1] MAX [2] UNITS CONDITIONS
Input Low Voltage V
IL
0.3xVcc V
Input High Voltage V
IH
0.7xVcc V
Output Low Voltage V
OL
0.3xVcc V I
OL
= 4.0 mA [3]
Output High Voltage V
OH
0.7xVcc V I
OH
= -1.6 mA [3]
Standby Current I
STBY
1 10 µA [4] [5]
Record Current I
REC
15 mA V
CC
= 5.5V
Playback Current I
PLAY
15 mA V
CC
= 5.5V, no
speaker load
Pull-up device for RECL ,
RECE , PLAYE , PLAYL , FT
& TryMe pins
R
PU1
40 k Ω
Pull-up device for SE
R
PU2
80 k Ω
Output Load Impedance R
EXT
8 Ω Speaker load
MIC Input Voltage V
IN
4 400 mV Peak-to-peak
MIC Amplifier Gain A
MicAmp
0 +34 dB Depend on
RO/RI
Gain from MIC to SP+/SP- A
MSP
+12 +46 dB Depend on
RO/RI
Notes:
[1] Typical values @ T
A
= 25 °, V
CC
= 5.5V and sampling frequency (Fs) at 8 kHz, unless stated.
[2] All Min/Max limits are guaranteed by design, electrical testing and/or characterization. Not all
specifications are 100 percent tested.
[3] LED output during recording.
[4] V
CCA
and V
CCD
are connected together. Also, V
SSA
and V
SSD
are connected together.
[5]
RECL , RECE , PLAYE , PLAYL , SE , FT and TryMe must be at V
CCD
. External components are
biased under a separated power supply.