U4082B Datasheet, PDF (18/30 Pages) ATMEL Corporation – Low-voltage Voice-switched IC for Hands-free Operation

Figure 7-2. Level Detector DC Transfer Characteristics
500
400
300
200
100
0
0
-20
-40
-60
I_I (µA)
-80 -100
Figure 7-3. Level Detector AC Transfer Characteristics
300
R = 5.1 kΩ
250 ^{C = 0.1 µF}
↓
200
← R = 10 kΩ
C = 0.047 µF or 0.1 µF
150
100
f = 1 kHz
50
0
0
20
4
60
80
100
V_i (mVrms)
Figure 7-4. Level Detector AC Transfer Characteristics versus Frequency
20
10
0
V_i= 10 mV
i
-10
-20
V_i= 40 mV
-30
-40
100
1000
f (Hz)
10000
18 U4082B
4743D–CORD–03/06