MC13135
MC13136
FM Communications Receivers
The MC13135/MC13136 are the second generation of single chip, dual
conversion FM communications receivers developed by Motorola. Major
improvements in signal handling, RSSI and first oscillator operation have
been made. In addition, recovered audio distortion and audio drive have
improved. Using Motorola’s MOSAIC™ 1.5 process, these receivers offer
low noise, high gain and stability over a wide operating voltage range.
Both the MC13135 and MC13136 include a Colpitts oscillator, VCO tuning
diode, low noise first and second mixer and LO, high gain limiting IF, and
RSSI. The MC13135 is designed for use with an LC quadrature detector and
has an uncommitted op amp that can be used either for an RSSI buffer or as
a data comparator. The MC13136 can be used with either a ceramic
discriminator or an LC quad coil and the op amp is internally connected for a
voltage buffered RSSI output.
These devices can be used as stand–alone VHF receivers or as the lower
IF of a triple conversion system. Applications include cordless telephones,
short range data links, walkie–talkies, low cost land mobile, amateur radio
receivers, baby monitors and scanners.
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DUAL CONVERSION
NARROWBAND
FM RECEIVERS
P SUFFIX
PLASTIC PACKAGE
CASE 724
24
1
DW SUFFIX
PLASTIC PACKAGE
CASE 751E
(SO–24L)
24
Complete Dual Conversion FM Receiver – Antenna to Audio Output
1
Input Frequency Range – 200 MHz
Voltage Buffered RSSI with 70 dB of Usable Range
ORDERING INFORMATION
Low Voltage Operation – 2.0 to 6.0 Vdc (2 Cell NiCad Supply)
Low Current Drain – 3.5 mA Typ
Device
Low Impedance Audio Output < 25 Ω
Operating
Temperature Range
Plastic DIP
MC13135P
VHF Colpitts First LO for Crystal or VCO Operation
Isolated Tuning Diode
MC13136P
SO–24L
MC13135DW
Buffered First LO Output to Drive CMOS PLL Synthesizer
TA = – 40° to +85°C
MC13136DW
PIN CONNECTIONS
MC13135
1st LO
1st LO Base 1
1st LO Emitter
1st LO Out
3
VCC1
5
2nd LO Base
2nd Mixer Out
VEE
8
Limiter In
9
1st LO Emitter
1st Mixer In 1
1st LO Out
3
1st Mixer In 2
VCC1
20
1st Mixer Out
2nd LO Emitter
5
VCC2
2nd Mixer In
17
Audio Out
16
Op Amp Out
22 1st Mixer In 1
VCC1
21 1st Mixer In 2
20 1st Mixer Out
2nd LO
VCC2
2nd LO Base 6
2nd Mixer Out
8
Limiter In
19 VCC2
18 2nd Mixer In
7
VEE
24 Varicap C
23 Varicap A
9
AF
17 Audio Out
16 Buffered RSSI Output
Demod
Demod
15
Op Amp In –
Decouple 1 10
Decouple 2 11
14
Op Amp In +
Decouple 2 11
RSSI 12
13
Quad Coil
Limiter
Varicap
4
AF
Decouple 1 10
SO–24L
2
18
7
Varicap A
19
6
VCC2
1
21
2nd LO
1st LO Base
22
VCC1
Varicap C
23
4
2nd LO Emitter
24
2
Plastic DIP
MC13136
1st LO
Varicap
Package
RSSI 12
Limiter
15 Op Amp In –
14 Limiter Output
13 Quad Input
Each device contains 142 active transistors.
8–214
MOTOROLA ANALOG IC DEVICE DATA
