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ML3371 Datasheet, PDF (1/19 Pages) LANSDALE Semiconductor Inc. – Low Power Narrowband FM IF
ML3371
ML3372
Low Power
Narrowband FM IF
Legacy Device: Motorola MC3371, MC3372
The ML3371 and ML3372 perform single conversion FM
reception and consist of an oscillator, mixer, limiting IF amplifi-
er, quadrature discriminator, active filter, squelch switch, and
meter drive circuitry. These devices are designed for use in FM
dual conversion communication equipment. The ML3371/ML3372
are similar to the Motorola MC3361/MC3357 FM IFs, except
that a signal strength indicator replaces the scan function control-
ling driver which is in the MC3361/MC3357. The ML3371 is
designed for the use of parallel LC components, while the
ML3372 is designed for use with either a 455 kHz ceramic dis-
criminator, or parallel LC components.
These devices also require fewer external parts than earlier
products. The ML3371 and ML3372 are available in dual–in–line
and surface mount packaging.
• Wide Operating Supply Voltage Range: VCC = 2.0 to 9.0 V
• Input Limiting Voltage Sensitivity of –3.0 dB
• Low Drain Current: ICC = 3.2 mA, @ VCC = 4.0 V,
Squelch Off
• Minimal Drain Current Increase When Squelched
• Signal Strength Indicator: 60 dB Dynamic Range
• Mixer Operating Frequency Up to 100 MHz
• Fewer External Parts Required than Earlier Devices
• Operating Temperature Range TA = –30° to +70°C
MAXIMUM RATINGS
Rating
Pin Symbol
Value
Unit
Power Supply Voltage
4 VCC(max)
10
RF Input Voltage (VCC 4.0 Vdc)
16
V16
1.0
Detector Input Voltage
8
V8
1.0
Vdc
Vrms
Vpp
Squelch Input Voltage
(VCC 4.0 Vdc)
12
V12
6.0
Vdc
Mute Function
Mute Sink Current
14
V14
14
l14
–0.7 to 10 Vpk
50
mA
Junction Temperature
–
TJ
150
°C
Storage Temperature Range
–
Tstg
–65 to +150 °C
NOTES: 1. Devices should not be operated at these values. The “Recommended Operating
Conditions” table provides conditions for actual device operation.
16
1
P DIP 16 = EP
PLASTIC PACKAGE
CASE 648
16
1
SO 16 = -5P
PLASTIC PACKAGE
CASE 751B
(SO–16)
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 16
SO 16
P DIP 16
SO 16
MC3371P
MC3371D
MC3372P
MC3372D
ML3371EP
ML3371-5P
ML3372EP
ML3372-5P
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
PIN CONNECTIONS
1
Crystal Osc
2
Mixer Output 3
VCC 4
Limiter Input 5
6
Decoupling
7
Quad Coil 8
ML3371
(Top View)
16 Mixer Input
15 Gnd
14 Mute
13 Meter Drive
12 Squelch Input
11 Filter Output
10 Filter Input
9 Recovered Audio
1
Crystal Osc
2
Mixer Output 3
VCC 4
Limiter Input 5
Decoupling 6
Limiter Output 7
Quad Input 8
ML3372
(Top View)
16 Mixer Input
15 Gnd
14 Mute
13 Meter Drive
12 Squelch Input
11 Filter Output
10 Filter Input
9 Recovered Audio
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