U4084B TEMIC [TEMIC Semiconductors], U4084B Datasheet - Page 15

• Manufacturer Part Number: U4084B
• Description: Low-Voltage, Voice-Switched Circuit for Hands-Free Operation
• Manufacturer: TEMIC [TEMIC Semiconductors]

TELEFUNKEN Semiconductors
Rev. A1, 31-Jan-97
93 7770 e
93 7771 e
Figure 11. Level-detector AC transfer characteristics
Figure 12. Receive attenuator versus volume control
– 10
– 20
– 30
– 40
– 10
– 20
– 30
– 40
10
20
10
0
0
100
0.1
0.3
versus frequency
Minimum recommended level
0.5
f (Hz)
VCI/V
1000
Receive mode
B
v
0.7
i
= 40 mV
Preliminary Information
v
0.9
i
= 10 mV
10000
1.2
93 7772 e
Figure 14. Microphone amplifier open loop gain and phase
94 7871 e
– 10
– 20
– 30
– 40
120
100
Figure 13. Receive attenuation gain versus V
80
60
40
20
10
0
0
2.8
0
1
3
versus frequency
V
S
f ( kHz )
10
(V)
3.2
U4084B
100
3.4
Gain
1000
3.6
S
15 (26)
120
100
80
60
40
20
0