UNISONIC TECHNOLOGIES CO., LTD
MC3361BP
LOW VOLTAGE/POWER
NARROW BAND FM IF
DESCRIPTION
The UTC MC3361BP is designed for use in FM dual conversion
communication. It contains a complete narrow band FM
demodulation system operable to less than 2.5V supply voltage. This
low-power narrow-band FM IF system provides the second
converter, second IF, demodulator. Filter Amp and squelch circuitry
for communications and scanning receivers.
LINEAR INTEGRATED CIRCUIT
FEATURES
*Low power consumption (4.0mA typ. at Vcc=4.0V)
*Excellent input sensitivity
(-3dB limiting, 2.0μVrms typ.)
*Minimum number of external components required.
*Operating Voltage: 2.5~7.0V
APPLICATIONS
*Cordless phone (for home use)
*FM dual conversion communications equipment
ORDERING INFORMATION
Normal
MC3361BP-D16-T
MC3361BP-N16-R
MC3361BP-N16-T
MC3361BP-S16-R
MC3361BP-S16-T
Order Number
Lead Free Plating
MC3361BPL-D16-T
MC3361BPL-N16-R
MC3361BPL-N16-T
MC3361BPL-S16-R
MC3361BPL-S16-T
Halogen Free
MC3361BPG-D16-T
MC3361BPG-N16-R
MC3361BPG-N16-T
MC3361BPG-S16-R
MC3361BPG-S16-T
Package
DIP-16
TSSOP-16
TSSOP-16
SOP-16
SOP-16
Packing
Tube
Tape Reel
Tube
Tape Reel
Tube
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
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MC3361BP
PIN CONFIGURATION
LINEAR INTEGRATED CIRCUIT
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MC3361BP
BLOCK DIAGRAM
LINEAR INTEGRATED CIRCUIT
1
2
Local
OSC
1.8k
16
15
14
13
3
4
5
Squelch Trigger
With Hysteresis
1.8k
12
11
6
7
IF Amp
-
+
10
Qual Detector
AF Amp
9
8
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www.unisonic.com.tw
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MC3361BP
ABSOLUTE MAXIMUM RATINGS
(T
A
=25°C)
PARAMETER
LINEAR INTEGRATED CIRCUIT
SYMBOL
RATING
UNIT
Max. Supply Voltage
Vcc
(MAX)
10
V
Supply Voltage Range
Vcc
2.5 to 7.0
V
Detector Input voltage
V
I(DET)
1.0
Vp-p
RF Input Voltage (Vcc≧4.0V)
V
I(RF)
1.0
Vrms
Mute Function
V
MUTE
-0.5 ~ + 5.0
Vpeak
Operating Temperature
T
OPR
-20 ~ +70
°C
Storage Temperature
T
STG
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS
(Vcc=4.0V, fo=10.7MHz,
Δf=±3KHz,
f
MOD
=1KHz, Ta=25°C, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
Squelch OFF (V
12
=2V)
Operating Current
Icc
Squelch ON (V
12
=GND)
Input Limiting Voltage
V
I(LIMIT)
-3.0dB limiting
Detector Output Voltage
V
O(DET)
Detector Output Impedance
Z
O(DET)
Audio Output Voltage
V
O
V
IN
=10mV
100
Filter Gain
G
V
f=10KHz,V
IN
=5mV
40
Filter Output DC Voltage
V
O(DC)
Trigger Hysteresis of Filter
V
TH
Mute Switch-ON Resistance
R
ON(MUTE)
Mute “Low”
Mute Switch-OFF Resistance
R
OFF(MUTE)
Mute “High”
Scan Control “Low” Output
V
L(SCAN)
Mute OFF (V
12
=2V)
Scan Control “High” Output
V
H(SCAN)
Mute ON (V
12
=GND)
3.0
Mixer Conversion Gain
G
V(MIXER)
Mixer Input Resistance
R
I(MIXER)
Mixer Input Capacitance
C
I(MIXER)
TYP
4.0
6.0
2.0
2.0
400
160
48
1.5
50
10
10
MAX
UNIT
mA
mA
μV
Vdc
Ω
mVrms
dB
Vdc
mV
Ω
MΩ
Vdc
Vdc
dB
KΩ
pF
0.5
24
3.3
2.2
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MC3361BP
APPLICATION CIRCUIT
LINEAR INTEGRATED CIRCUIT
MURATA
CFU 455D
120K
In the above typical application, the audio signal is recovered using a conventional quadrature FM detector. The
absence of an input signal is indicated by the presence of noise above the desired audio frequencies. This “noise
band: is monitored by an active filter and a detector. A squelch trigger circuit indicates the presence of noise (or a
tone) by an output which can be used to control scanning. At the same time, an internal switch is operated which can
be used to mute the audio.
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
AUDIO
VOLUME
510
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QW-R108-010.D
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