U4084B TEMIC [TEMIC Semiconductors], U4084B Datasheet - Page 2

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

Block Diagram
U4084B
2 (26)
MUTE
RLO2
TLO2
GND
CPT
CD
V
S
9
13
15
16
4
1
3
MIC
8
V
noise monitor
B
Background-
V
–
+
B
12
400
MICO TLI2
C
7
detectors
T
Preliminary Information
11
Level
RLI2
14
17
Figure 1. Block diagram
6
TI
Dial tone
R attenuator
T attenuator
detector
Attenuator
control
RECO
AGC
V
B
19
V
S
+
TO
5
–
RI VCI
18
noise monitor
Background-
10
detectors
TELEFUNKEN Semiconductors
Level
RLI1
23
U4084B
Rev. A1, 31-Jan-97
12626
24
20
22
22
RLO1
TLO1
TLI1
CPR