ML13055
Wideband FSK Receiver
Legacy Device: Motorola MC13055
The ML13055 is intended for RF data link systems using
carrier frequencies up to 40 MHz and FSK (frequency shift
keying) data rates up to 2.0 M Baud (1.0 MHz). This design
is similar to the ML3356, except that it does not include the
oscillator/mixer. The IF bandwidth has been increased and
the detector output has been revised to a balanced configura-
tion. The received signal strength metering circuit has been
retained, as has the versatile data slicer/comparator.
P-DIP 16 = EP
Plastic DIP
SO 16 = -5P
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
• Input Sensitivity 20 µV @ 40 MHz
P-DIP 16
SO 16
MC13055P
MC13055D
ML13055EP
ML13055-5P
• Signal Strength Indicator Linear Over 3 Decades
• Easy Application, Few Peripheral Components
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
• Operating Temperature Range T = –40° to +85°C
A
PIN ASSIGNMENT
V
CC
0.01
0.01
16
Data
Output
1
15
14
+
–
2
3
1
2
3
4
5
6
7
8
16
Data Out
Comparator Gnd
100pF
–
+
0.8V
13
12
Carrier
Detect
+
–
Comparator V
CC
15
14
13
12
40MHz
IF
Input
4
Comparator
IF Ground
22pF
27pF
Squelch
Adjust
(meter)
5
6
(50Ω)
5.0k
IF V
CC
Carrier Detect
Meter Drive
Limiter
Limiter Input
Limiter Bias
Quad Bias
L1
11
10
68pF
3.9k
0.1
7
8
11
10
9
Detector
Out
Quad Input
0.01
9
V
CC
3.9k
1.0k
39pF
L2
Figure 1. Block Diagram and Application Circuit
Page 1 of 9
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Issue B