MC145443P Freescale Semiconductor, MC145443P Datasheet - Page 2

• Manufacturer Part Number: MC145443P
• Description: Modem Chip Single 0.3KBd
• Manufacturer: Freescale Semiconductor

Specifications of MC145443P

• Main Category: Single Chip
• Maximum Data Rate: 0.3 KBd
• Typical Operating Supply Voltage: 5 V
• Power Supply Type: Analog
• Typical Supply Current: 7 mA
• Minimum Operating Supply Voltage: 4.5 V
• Maximum Operating Supply Voltage: 5.5 V

* Changing the crystal frequency from 3.579 MHz will change the output frequencies. The
ABSOLUTE MAXIMUM RATINGS
RECOMMENDED OPERATING CONDITIONS
Supply Voltage
DC Input Voltage
DC Output Voltage
Clamp Diode Current, per Pin
DC Output Current, per Pin
Power Dissipation
Operating Temperature Range
Storage Temperature Range
Supply Voltage
DC Input or Output Voltage
Input Rise or Fall Time
Crystal Frequency*
change in output frequency will be proportional to the change in crystal frequency.
MODE
RxA2
RxA1
SQT
X out
TxD
TLA
X in
* Refer to the FB pin description.
LB
15
16
13
14
11
20
2
8
9
Parameter
MC145443
Rating
OSCILLATOR
–
+
MODULATOR
CONTROL
MODE
V in , V out
Symbol
f crystal
(Voltages Referenced to V SS )
V DD
DIVIDER
t r , t f
Freescale Semiconductor, Inc.
CLOCK
AAF
Symbol
I IK , I OK
V DD
V out
T stg
I out
V in
P D
T A
S/H
Min
4.5
3.2
—
0
SAMPLING CLOCK: 77.82 kHz
SAMPLING CLOCK: 19.46 kHz
– 0.5 to V DD + 0.5
– 0.5 to V DD + 0.5
BLOCK DIAGRAM
– 0.5 to + 7.0
– 65 to + 150
– 40 to + 85
Value
500
20
28
V DD
Max
500
5.5
5.0
HIGH–BAND
LOW–BAND
MHz
BPF
Unit
BPF
Unit
mW
ns
mA
mA
V
V
V
V
V
C
C
INTERNAL
SMOOTHING
V AG
FILTER
inputs against damage due to high static volt-
ages or electric fields; however, it is advised that
normal precautions be taken to avoid application
of any voltage higher than maximum rated
voltages to this high impedance circuit. For
proper operation it is recommended that V in and
V out be constrained to the range V SS
V out )
appropriate logic voltage level (e.g., either V SS
or V DD ).
This device contains circuitry to protect the
Unused inputs must always be tied to an
GENERATOR
V DD ).
GROUND
ANALOG
AC AMP
*
–
+
CARRIER
DETECT
DEMOD
10
17
18
19
12
4
7
3
5
1
6
(V in or
V AG
V DD
V SS
CDT
CDA
CD
RxD
FB
DSI
TxA
ExI