TK83361M
NARROW BAND FM IF IC
FEATURES
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Wide Operating Voltage Range 2.0 to 8.0V
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RF Input Frequency up to 220 MHz
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Low Supply Current (2.8mA, squelch off, 3.8mA,
squelch on)
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Low External Component Count
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Excellent Limiting Sensitivity (-3dB = 8dBµ)
µ
APPLICATIONS
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Amateur Radio Transceivers
Cordless Phones
Remote Controls
Wireless Data Transceivers
Battery Powered Devices
DESCRIPTION
The TK83361M is a narrow band FM IF IC designed for
cordless phones, radio transceivers, remote controls, wire-
less data transceivers, and other communication equip-
ment.
It integrates the mixer, oscillator, limiting amplifier, FM
demodulator, filter amplifier and squelch circuit into a single
surface mount SOP-16 package. The low operating cur-
rent combined with a minimum operating voltage of only 2
V makes this device ideal for battery powered devices.
The TK83361M offers improved performance over the
MC3361C. The operating frequency has been increased to
220MHz (vs. 60MHz) while reducing the supply current
from 5.2 mA to 3.8mA (squelch on). Offered in the SOP-16
surface mount package, the TK83361M is a drop-in re-
placement for the MC3361C.
TK83361M
OSC (B) 1
16 RF INPUT
OSC (E) 2
15 GND
MIXER OUT 3
14 SCAN CONTROL
VCC
4
13 SCAN CONTROL
IF INPUT
5
12 SQUELCH INPUT
11 FILTER AMP
OUTPUT
10 FILTER AMP
INPUT
9 AF OUTPUT
DECOUPLE
6
DECOUPLE
7
QUAD COIL
8
BLOCK DIAGRAM
ORDERING INFORMATION
OSC (B) 1
OSC
MIXER
16 RF INPUT
TK83361M
Tape/Reel Code
OSC (E) 2
GND
15 GND
MIXER OUT 3
SQUELCH
14 SCAN CONTROL
VCC
4
VCC
13 SCAN CONTROL
TAPE/REEL CODE
TL: Tape Left
IF INPUT
5
12 SQUELCH INPUT
11 FILTER AMP
OUTPUT
10 FILTER AMP
INPUT
10pF
QUAL DET
DECOUPLE
6
LIMIT
AMP
FILTER
AMP
DECOUPLE
7
QUAD COIL
8
9 AF OUTPUT
December 2000 TOKO, Inc.
Page 1
TOKO [ TOKO, INC ]
