
December 2000 TOKO, Inc.
Page 1
TK83361M
TK83361M
NARROW BAND FM IF IC
BLOCK DIAGRAM
FEATURES
APPLICATIONS
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.
Wide Operating Voltage Range 2.0 to 8.0V
RF Input Frequency up to 220 MHz
Low Supply Current (2.8mA, squelch off, 3.8mA,
squelch on)
Low External Component Count
Excellent Limiting Sensitivity (-3dB = 8dB
μ
)
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.
Amateur Radio Transceivers
Cordless Phones
Remote Controls
Wireless Data Transceivers
Battery Powered Devices
ORDERING INFORMATION
TK83361M
TAPE/REEL CODE
TL: Tape Left
Tape/Reel Code
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 RF INPUT
GND
SCAN CONTROL
SCAN CONTROL
SQUELCH INPUT
FILTER AMP
OUTPUT
FILTER AMP
INPUT
AF OUTPUT
OSC (B)
OSC (E)
MIXER OUT
VCC
IF INPUT
DECOUPLE
DECOUPLE
QUAD COIL
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 RF INPUT
GND
SCAN CONTROL
SCAN CONTROL
SQUELCH INPUT
FILTER AMP
OUTPUT
FILTER AMP
AF OUTPUT
OSC (B)
OSC (E)
MIXER OUT
VCC
IF INPUT
DECOUPLE
DECOUPLE
QUAD COIL
OSC
MIXER
LIMIT
AMP
10pF
QUAL DET
VCC
SQUELCH
GND
FILTER
AMP