mt9160bsr1 Zarlink Semiconductor, mt9160bsr1 Datasheet - Page 17

• Manufacturer Part Number: mt9160bsr1
• Description: 5v Multi-featured Phone Codec With Programmable U/a Law Companding
• Manufacturer: Zarlink Semiconductor

Applications
Figure 9 shows an application in a digital phone set.
Various configurations of pair gain drops are depicted in Figures 12a and 12b using the MT9125 and MT9126,
respectively.
10 mF
Microphone
Electret
MOTOROLA
Controller
MCS-51
INTEL
+
Micro-
SPI
or
+5 V
+
511 W
511 W
330 W
100 K
0.1 mF
0.1 mF
0.1 mF
+5 V
A/m/IRQ
CS
SCLK
DATA1
DATA2
DATA2 Motorola
Mode only
0.1 mF
0.1 mF
Differential Amplifier
VBias
100 K
100 K
Twisted Pair
1 mF
VBias
T
Av = 1 + 2R
Figure 9 - Digital Telephone Set
+
-
+
-
Converter
DC to DC
10
Zarlink Semiconductor Inc.
1
2
3
4
5
6
7
8
9
MT9160B/61B
T
R
R
MT9160B
(
Typical External Gain
17
AV= 5-10
M+
M-
+5 V
Lout
20
19
18
17
16
15
14
13
12
11
Lin
Z
T
Microphone
10 mF
Electret
10.24 MHz
MT8972
+5 V
DNIC
+
75 W
)
+
75 W
330 W
DSTi
1K
DSTo
F0i
C4b
Single-ended Amplifier
+5 V
0.1 mF
M+
M-
VBias
T
VBias
150 W
+
-
Data Sheet
R
M+
M-