MT8843 데이터 시트보기 (PDF) - Zarlink Semiconductor Inc
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MT8843 Datasheet PDF : 23 Pages
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MT8843
Products are designed in accordance with meeting
the above requirements; however, full conformance
to these standards is dependant upon the application
in which the CNIC2 is being used, and therefore,
approvals are the responsibility of the customer and
Zarlink will not have tested the product to meet the
above standards.
TIP / A
RING / B
430K
5%
+5V
1N4003 34K
TISP4180,
TISP5180,
TPA150A12 or
TPB150B12
22nF
5%
22nF
5%
1N4003
430K
5%
+5V
1N4003
34K
1N4003 +5V
499K, 5%
100nF
5%
1N914
1N914
1N914
499K, 5%
200K
5%
1N914
301K
100nF
5%
5%
+5V
150K
5%
220nF
464K
100nF
+5V
MT8843
CNIC2
IN+
IN-
GS
VRef
CAP
TRIGin
TRIGRC
TRIGout
MODE
OSCin
OSCout
VSS
VDD C
St/GT R1
ESt
StD
R2
INT
CD
DR
DATA
DCLK
FSKen
PWDN
IC
+5V
100K
20%
1N914
NOTE: Resistors must have 1% tolerance and capacitors have 20%
tolerance unless otherwise specified.
: Crystal is 3.579545MHz, 0.1% frequency tolerance.
: For BT Application C=0.1µF 5%, R1=422kΩ 1%, R2=422kΩ 1%
: For Bellcore & BT Application C=0.1µF 5%, R1=825kΩ 1%, R2=226kΩ 1%
Figure 9 - Application Circuit
= To microcontroller
= From microcontroller
(FSK Interface Mode 0 selected)
TIP / A
RING / B
22nF
5%
22nF
5%
430K
5%
+5V
1N4003
34K
1N4003
430K
5%
+5V
1N4003
34K
1N4003
100nF
10%
+5V
150K
5%
1N5231B
330nF 12K1
10% 5%
+5V Motorola
4N25
464K
5%
200K
5%
10nF
+5V
MT8843
CNIC2
464K
IN+
IN-
GS
VRef
CAP
TRIGin
TRIGRC
TRIGout
MODE
OSCin
OSCout
VSS
VDD C
+5V
St/GT R1
100K
ESt
StD
R2
1N914 20%
INT
CD
DR
DATA
DCLK
FSKen
PWDN
IC
NOTE: Resistors must have 1% tolerance, capacitors have 20%
tolerance unless specified otherwise.
: Bridge rectifier diodes are 1N914.
: For BT Application C=0.1µF 5%, R1=422kΩ 1%, R2=422kΩ 1%
: For Bellcore & BT Application C=0.1µF 5%, R1=825kΩ 1%, R2=226kΩ 1%
= To microcontroller
= From microcontroller
(FSK Interface Mode 0 selected)
Figure 10 - Application Circuit with Improved Common Mode Noise Immunity and Isolation in
Line Interface
5-40
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