U4084B Datasheet, PDF (16/26 Pages) TEMIC Semiconductors – Low-Voltage, Voice-Switched Circuit for Hands-Free Operation

U4084B
120
v v 100
←Valid for 0 CD, MUTE V_S →
80
60
40
20
0
0
93 7774 e
2
4
6 6.5 8
Input Voltage (V)
Figure 15. Input characteristics @ CD, MUTE
6
4
v CD 0.8 V
2
v v 2 V CD V_S
0
0
2
4
6
8
94 7880 e
V_S ( V )
Figure 16. Supply current versus supply voltage
3.0
2.5
V_S = 6 V
2.0
1.5
V_S = 3.5 V
1.0
0.5
0
0
0.5
1.0 1.5 2.0
2.5
93 7776 e
– I_B (mA) (Load Current)
Figure 17. V_B output characteristics
80
C_VB = 1000 mF
500 mF
60
200 mF
100 mF
50 mF
40
20
0.3
93 7778 e
1
f (kHz)
2
3
Figure 18. V_B power-supply rejection versus frequency
characteristics and V_B capacitor
16 (26)
TELEFUNKEN Semiconductors
Preliminary Information
Rev. A1, 31-Jan-97