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.
• Input Sensitivity 20
µV
@ 40 MHz
• Signal Strength Indicator Linear Over 3 Decades
• Easy Application, Few Peripheral Components
• Operating Temperature Range TA = –40° to +85°C
P-DIP 16 = EP
Plastic DIP
SO 16 = -5P
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
LANSDALE
MOTOROLA
P-DIP 16
SO 16
MC13055P
MC13055D
ML13055EP
ML13055-5P
Note:
Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from
ML
to
MLE.
PIN ASSIGNMENT
VCC
0.01
1
2
3
40MHz
IF
Input
(50Ω)
L1
0.01
4
22pF
27pF
0.1
0.01
8 VCC
1.0k
39pF
5
6
7
0.8V
–
+
+
–
16
15
14
13 100pF
12
Limiter
11
10
9
3.9k
Data
Output
Comparator Gnd
Carrier
Detect
5.0k
68pF
3.9k
Squelch
Adjust
(meter)
1
2
3
4
5
6
16
+ 15
Data Out
Comparator
Comparator VCC
IF Ground
IF VCC
Limiter Input
Limiter Bias
– 14
13
12
11
10
9
Carrier Detect
Meter Drive
Detector
Out
Quad Input
7
Quad Bias
8
L2
Figure 1. Block Diagram and Application Circuit
Page 1 of 9
www.lansdale.com
Issue B
LANSDALE [ LANSDALE SEMICONDUCTOR INC. ]
