TOKO TK14600MMG, TK14600MTL, TK14600MBX Datasheet
TK14600
g
NARROW BAND FM IF AMPLIFIER
FEATURES
■ Low Voltage Operation
■ Two Stage IF Limiter
■ Mixer
■ Adjustable Internal Regulator
DESCRIPTION
The TK14600 is a low operating voltage FM IF system
designed for use in GPS receivers and other digital communications systems. This IC contains a high gain 2-stage
IF limiter with an internal voltage regulator.
The TK14600 is available in the SSOP-12 (MFP-12)
surface mount package.
APPLICATIONS
■ GPS Systems
■ Digital Communications
TK14600
MIXER INPUT
MIXER OUTPUT
GND
IF AMP INPUT
V
CC
IF AMP OUTPUT
OSC INPUT
REG INPUT
REG OUTPUT
LIMITER AMP OUTPUT
LIMITER AMP DECOUP
LIMITER AMP INPUT
BLOCK DIAGRAM
ORDERING INFORMATION
TK14600M
Tape/Reel Code
V
TAPE/REEL CODE
BX: Bulk/Bag
TL: Tape Left
azine
MG: Ma
IF AMP
January 2000 TOKO, Inc. Page 1
ERROR AMP
+
ref
LIMITER
AMP
TK14600
ABSOLUTE MAXIMUM RATINGS
Maximum Supply Voltage ..........................................6 V
Operating Voltage Range..............................2.3 to 5.5 V
Junction Temperature ..........................................150 °C
Power Dissipation (Note 1) ................................250 mW
TK14600 ELECTRICAL CHARACTERISTICS
Test Conditions: V
LOBMYSRETEMARAPSNOITIDNOCTSETNIMPYTXAMSTINU
= 3 V, FRF = 20 MHz, F
CC
= 18.9 MHz, Injection Level = -5dBm, FIF = 1.1 MHz
OSC
Lead Soldering Temp. (10 sec.)......................... 235 °C
Storage Temperature Range ...................-55 to +150 °C
Operating Temperature Range ..................-30 to +80 °C
I
CC
MGniaGrefsnarTrexiM
f
NI
egnaR
1FIGniaGpmAFIf,tupniµBd04
V
1TUO
2FIGniaGpmAretimiLf,tupniµBd02
V
2TUO
f
FI
V
R
tnerruCylppuStupnioN0.27.24.3Am
f
FR
f
CSO
tupniµBd05,zHM0.02=
tupnimBd5-,zHM9.81=
ycneuqerFgnitarepOrexiM
zHM1.1=420363Bd
zHM1.1=22.033.044.0V
zHM1.1=565758Bd
zHM1.1=6.00.14.1V
egatloVtuptuOpmAFIf,tupniµBd08
egatloVtuptuOpmAretimiLf,tupniµBd08
FI
FI
FI
FI
pmAretimiL,pmAFI
egnaRycneuqerFgnitarepO
tuptuOrotalugeRegatloVI
TUO
Am01=8.10.22.2V
Note 1: Power dissipation is 250 mW in free air. Derate at 2.0 mW/°C for operation above 25 °C.
TEST CIRCUIT
REG OUT
24 kΩ
V4
Test Conditions: V
= 3 V, TA = 25 °C
CC
Mixer SG1 (RF Input) 20 MHz Non-mod
SG2 (Local Input) 18.9 MHz Non-mod
V1 (IF Output) 1.1 MHz
10 mA
SG2
27 kΩ
0.01 µF
~
51
4.7 µF
420363Bd
1.004zHM
P-P
P-P
1.05zHM
V3
V
CC
2SA 733
+
100 kΩ
Q1
0.1 µF
0.1 µF
51 k
1 kΩ
0.1 µF
0.1 µF
51 Ω
SG4
~
IF Amp SG3 (IF1 Input) 1.1 MHz Non-mod
V2 (IF1 Output)
Limiter SG4 (IF2 Input) 1.1 MHz Non-mod
SG1
0.01 µF
SG3
0.1 µF
51 Ω
~
+
~
51 Ω
0.1 µF
100 Ω
V1
100 kΩ
0.1 µF
V2
VCC = 3 V
0.1 µF10 µF
Amp V3 (IF2 Output)
Regulator V4 (Regulator Output)
Page 2 January 2000 TOKO, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS
TK14600
MIXER FREQUENCY
40
CHARACTERISTICS
INJ-Level = -5 dBm
30
20
GAIN (dB)
10
0
0 20 40 60 80 100 120
fIN (MHz)
MIXER GAIN vs.
40
INJECTION LEVEL
30
20
GAIN (dB)
10
MIXER THIRD ORDER
-20
-40
-60
f
RF1
f
RF2
f
OSC
INJ-Level = -5 dBm
fIF = 1.0 MHz
PRODUCTS
= 20.001 MHz
= 19.999 MHz
= 19.0 MHz
Desier Level
LEVEL (dBm)
-80
3rd Order Products
-100
0 20 40 60 80 100 120
RFIN (dBµ)
IF FREQUENCY
80
CHARACTERISTICS
Limiter Amp
60
40
GAIN (dB)
20
IF Amp
0
-40 -30 -20 -10 0 10 20
INJECTION LEVEL (dBm)
0
10
f (MHz)
VOLTAGE REGULATOR OUTPUT
and SUPPLY CURRENT vs.
5
SUPPLY VOLTAGE
4
3
I
CC
80
60
GAIN vs.
SUPPLY VOLTAGE
Limiter Amp Gain
(V)
REG
40
GAIN (dB)
MIXER GAIN
20
IF Amp Gain
0
0 2 4 6 8
VCC (V)
2
(mA), V
CC
I
1
REG OUT
0
0 2 4 6 8
VCC (V)
January 2000 TOKO, Inc. Page 3
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