Motorola MC3357D, MC3357P Datasheet
Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
LOW POWER
FM IF
ORDERING INFORMATION
MC3357D
MC3357P
TA = – 30 to +70°C
SO–16
Plastic DIP
PIN CONNECTIONS
Order this document by MC3357/D
P SUFFIX
PLASTIC PACKAGE
CASE 648
D SUFFIX
PLASTIC PACKAGE
CASE 751B
(SO–16)
2
3
Crystal
Osc.
V
CC
Limiter
Input
Decoupling
Limiter
Output
Quad
Input
RF
Input
9
10
11
12
13
14
15
161
4
5
6
7
8
Gnd
Audio
Mute
Scan
Control
Squelch
Input
Filter
Output
Filter
Input
Demodulator
Output
Mixer
Output
1
MOTOROLA ANALOG IC DEVICE DATA
. . . includes Oscillator, Mixer, Limiting Amplifier, Quadrature Discriminator,
Active Filter, Squelch, Scan Control, and Mute Switch. The MC3357 is
designed for use in FM dual conversion communications equipment.
• Low Drain Current (3.0 mA (Typical) @ V
CC
= 6.0 Vdc)
• Excellent Sensitivity: Input Limiting Voltage –
(– 3.0 dB) = 5.0 µV (Typical)
• Low Number of External Parts Required
• Recommend MC3372 for Replacement/Upgrade
Figure 1. Representative Block Diagram
10.7 MHz Input
Ground
Z2
Audio
Noise
Detector
Z1
Audio Mute
Scan Control
Active
Filter
Amp
_
2.0 V
+
455 kHz
Filter
10.245 MHz
V
CC
Quad
Coil
Demodulator
Limiter
Amp
16
14
15
13
12
11
10
9
8
7
6
5
4
3
2
1
Oscillator
Mixer
Squelch Trigger
With Hysteresis
Motorola, Inc. 1996 Rev 5
MC3357
2
MOTOROLA ANALOG IC DEVICE DATA
MAXIMUM RATINGS
(TA = 25°C, unless otherwise noted)
Rating
Pin Symbol Value Unit
Power Supply Voltage 4 VCC(max) 12 Vdc
Operating Supply Voltage Range 4 V
CC
4 to 8 Vdc
Detector Input Voltage 8 – 1.0 Vp–p
Input Voltage (VCC q 6.0 Volts) 16 V
16
1.0 V
RMS
Mute Function 14 V
14
–0.5 to 5.0 V
pk
Junction Temperature – T
J
150 °C
Operating Ambient Temperature Range – T
A
– 30 to + 70 °C
Storage Temperature Range – T
stg
– 65 to + 150 °C
ELECTRICAL CHARACTERISTICS (V
CC
= 6.0 Vdc, fo = 10.7 MHz, ∆f = ± 3.0 kHz, f
mod
= 1.0 kHz, TA = 25°C, unless otherwise noted.)
Characteristic
Pin Min Typ Max Unit
Drain Current Squelch Off
Drain Current Squelch On
4 –
–
2.0
3.0
–
5.0
mA
Input Limiting Voltage (– 3 dB Limiting) 16 – 5.0 10 µV
Detector Output Voltage 9 – 3.0 – Vdc
Detector Output Impedance – – 400 – Ω
Recovered Audio Output Voltage (Vin = 10 mV) 9 200 350 – mVrms
Filter Gain (10 kHz) (Vin = 5 mV) – 40 46 – dB
Filter Output Voltage 11 1.8 2.0 2.5 Vdc
Trigger Hysteresis – – 100 – mV
Mute Function Low 14 – 15 50 Ω
Mute Function High 14 1.0 10 – MΩ
Scan Function Low (Mute Off)
(V12 = 2 Vdc)
13 – 0 0.5 Vdc
Scan Function High (Mute On)
(V12 = Gnd)
13 5.0 – – Vdc
Mixer Conversion Gain 3 – 20 – dB
Mixer Input Resistance 16 – 3.3 – kΩ
Mixer Input Capacitance 16 – 2.2 – pF
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