l6726-s18-t Unisonic Technologies, l6726-s18-t Datasheet - Page 5

• Manufacturer Part Number: l6726-s18-t
• Description: Universal Speech Circuit
• Manufacturer: Unisonic Technologies

L6726
FUNCTIONAL DIAGRAM(Cont.)
MUTE
DTMF
DC supply OUT
CMOS device
input
350Ω
MIC
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
Note : * Not used in test setup
R16
27k
220nF
C8
47μF
12
13
10
8
+
DC
Sense input
Control output
C7
9
7
Figure 3. Circuit with external components for test setup.
AM
AD
22k
5
R5
18k
R4
11
100nF
75 Ω
3
C3
R6
AT
1
560Ω
2
910 Ω
11k
R7
R9
UTC 6726
R8
R11
47nF
3kΩ
C4
C5
100nF
LINEAR INTEGRATED CIRCUIT
R13
11k
15 14 6
AR
R15
10 Ω
14 4
R1
R2
*
*
1
7
1
8
47μF
R10
910 Ω R3
82k
R14
310Ω
REC
350 Ω
+
C1
C2
15nF
+Line
-Line
QW-R108-015,B
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