MT8930CPR Zarlink Semiconductor, Inc., MT8930CPR Datasheet - Page 27

• Manufacturer Part Number: MT8930CPR
• Description: 4 Wire Full-duplex 2B+D (192 Kbps) Data Format ISDN S and T Subscriber Network Interface Circuit with Controllerless Mode
• Manufacturer: Zarlink Semiconductor, Inc.

U Reference
R
R
Point
‡
‡
Converter
DC to DC
‡
100Ω terminating resistor
1:2
1:2
+5V
+5V
Figure 17 - NT1 using the MT8910-1 (DSLIC) and MT8930C (SNIC)
V
R
2kΩ
DD
Tx
Termination
MH89101
10k
Network
V
LRx
LTx
Bias
IRQ
MT8930C
Figure 18 - ISDN Digital Telephone Set
Data Port
DSTo
C
DSTi
C4b
mode
F0b
IRQ
L
L
L
L
out+
in+
in-
out-
V
MT8910-1
DD
DSLIC
8051
DSTo
C4b
F0b
DSTi
Power Supply
Power Feed
and
+5V
DATA1 SCLK CS
DSTi
DSTo
F0i
C4i
C4b
F0b
DSTo
DSTi
MT9094
Microprocessor
HSPKR+
MT8930C
NT Mode
HSPKR-
SPKR+
SPKR-
S12-1
MIC+
MIC-
M+
M-
V
Bias
LRx
LTx
‡
100Ω terminating resistor
V
DD
10µF
R
Tx
1
4
7
*
Microphone
Speaker
2:1
2:1
MT8930C
2
5
8
0
Handset
3
6
9
#
S Reference
Display
Point
K
e
y
p
a
d
R
R
9-59
‡
‡