MC2833
Low Power FM
Transmitter System
MC2833 is a one–chip FM transmitter subsystem designed for cordless
telephone and FM communication equipment. It includes a microphone
amplifier, voltage controlled oscillator and two auxiliary transistors.
• Wide Range of Operating Supply Voltage (2.8–9.0 V)
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LOW POWER
FM TRANSMITTER
SYSTEM
Low Drain Current (ICC = 2.9 mA Typ)
Low Number of External Parts Required
SEMICONDUCTOR
TECHNICAL DATA
– 30 dBm Power Output to 60 MHz Using Direct RF Output
+ 10 dBm Power Output Attainable Using On–Chip Transistor Amplifiers
Users Must Comply with Local Regulations on R.F.
Transmission (FCC, DOT, P.T.T., etc)
P SUFFIX
PLASTIC PACKAGE
CASE 648
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
Representative Block Diagram
PIN CONNECTIONS
16
1
3
15
Buffer
14
Mic
Amp
4
13
–
+
5
12
6
11
7
VREF
1
16
Decoupling
2
15
3
14
Mic Amp
Output
4
Tr 2
13 Base
Mic Amp
Input
5
12
Gnd
2
Variable
Reactance
Variable
Reactance
Output
Modulator
Input
RF
Osc
6
Tr 2
11 Collector
Tr 1
Emitter
7
10 VCC
Tr 1
Base
8
9
RF
Osc
RF
Output
Tr 2
Emitter
Tr 1
Collector
10
ORDERING INFORMATION
8
9
Device
Operating
Temperature Range
MC2833D
MC2833P
MOTOROLA ANALOG IC DEVICE DATA
Package
SO–16
TA = – 30 to +75°C
Plastic DIP
8–55
