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TOKO
TOKO

TK14588V Datasheet

FM IF IC


TK14588V Datasheet Preview


FEATURES
s Input Frequency (~22 MHz)
s Low Voltage Operation (2.3 to 5.5 V)
s Battery Save Function
s Wide Band Demodulator (~1 MHz)
s High Speed Data Comparator (~2 Mbps)
s Very Small Package (TSSOP-16)
APPLICATIONS
s Communications Equipment
s Wireless LAN
s Keyless Entry Systems
TK14588
FM IF IC
DESCRIPTION
The TK14588V is a standard function general purpose IF
IC capable of operating up to 22 MHz. The TK14588V
contains a high-speed data comparator for base band
processing. The TK14588V has a unique function that
allows establishing the demodulation characteristics by
changing the external RC time constant, and not changing
the phase shifter constant. The RSSI output is individually
trimmed, resulting in excellent accuracy, good linearity,
and stable temperature characteristics. The TK14588V
was developed for high-speed data communication, DECT,
wireless LAN, keyless entry systems, etc.
The TK14588V is available in the very small TSSOP-16
surface mount package.
GND
ORDERING INFORMATION
TK14588V
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc.
TK14588V
IF INPUT
DECOUPLE
DECOUPLE
NC
POWER SAVE
VCC
COMP OUTPUT
COMP GND
GND
RSSI
IF OUTPUT
DET INPUT
DET OUTPUT
AMP OUTPUT
COMP INPUT
COMP INPUT
BLOCK DIAGRAM
-
+
AMP
COMP
VCC
Page 1
Page 1

TK14588
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ........................................................... 6 V
Operating Voltage Range .............................. 2.3 to 5.5 V
Power Dissipation (Note 1) ................................ 160 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-30 to +85 °C
Operating Frequency Range (IF) ................. 6 to 22 MHz
Operating Frequecy Range (Demodulation) ..... to 1 MHz
TK14588V ELECTRICAL CHARACTERISTICS
Test conditions: VCC = 3 V, fIN = 10.7 MHz, fm = 1 kHz, Modulation = ±50 kHz, TA = 25 °C, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
ICC Supply Current
No input
Power Save = ON, No input
3.5 5.0 mA
0.2 5.0 µA
IF
V
OUT
THD
Output Voltage
Total Harmonic Distortion
-30 dBm input
-30 dBm input
120 200 360 mVrms
0.5 2.0
%
S/N Signal to Noise Ratio
-30 dBm input
60 70
dB
SINAD 12 dB SINAD
-89 -83 dBm
RIF(IN)
G
Limiter Input Resistance
Gain
1.4 1.8 2.2 k
69 75
dB
RSSI
No input
0.00 0.20 0.30
V
VRSSI
RSSI Output Voltage
-60 dBm non-modulated input
-30 dBm non-modulated input
0.40
1.05
0.55
1.20
0.70
1.40
V
V
0 dBm non-modulated input
1.50 1.70 1.95
V
COMPARATOR
DR Duty Ratio
45 50
I Output Current
OUT
1
Note 1: Power dissipation is 160 mW when mounted as recommended. Derate at 1.28 mW/°C for operation above 25°C.
55
%
mA
Page 2
January 2000 TOKO, Inc.
Page 2

TEST CIRCUIT
0.01 µF
GND
RSSI OUT
3.3 k
12 k
VCC
COMP INPUT
836BH-0268 (TOKO)
DET OUTPUT
1000 pF
10 k
10 k
1 pF
51 k
-
+
AMP
COMP
50
0.01 µF
~
IF-INPUT
0.01 µF
0.01 µF
VCC
VCC
P.S.
0.01 µF
+
4.7 µF
COMP
VCC
3 k
COMP
OUT
TK14588
0.01 µF
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C, unless otherwise specified.
S+N, N, AM OUT, TOTAL
HARMONIC DISTORTION vs.
INPUT VOLTAGE
0 20
S+N
-20 16
-40
AM OUT
12
(30% mod.)
-60 8
-80 THD
N
-100
-120 -100 -80 -60 -40 -20
VIN (dBm)
4
0
0 20
RSSI OUTPUT VOLTAGE vs.
INPUT VOLTAGE
2.0 VCC
5.5 V
1.6 3.0 V
2.3 V
1.2
0.8
0.4
0.0
-120 -100 -80 -60 -40 -20
VIN (dBm)
0 20
January 2000 TOKO, Inc.
Page 3
Page 3

TK14588
TYPICAL PERFORMANCE CHARACTERISTICS
TA = 25 °C, unless otherwise specified.
DETUNE CHARACTERISTICS
-10 20
-20 16
VOUT
-30 12
-40 8
-50 THD 4
-60
10.3
10.5 10.7 10.9
fIN (MHz)
0
11.1
SUPPLY CURRENT, OUTPUT VOLTAGE,
TOTAL HARMONIC DISTORTION vs.
SUPPLY VOLTAGE
300 5
260 ICC 4
220 3
VOUT
180 2
140
100
2
THD
34
VCC (V)
5
1
0
6
SUPPLY VOLTAGE, OUTPUT VOLTAGE,
TOTAL HARMONIC DISTORTION
vs. TEMPERATURE
300 5
260
ICC
220
180
VOUT
4
3
2
140
100
-40 -20 0
THD
20 40
TA (°C)
1
0
60 80 100
Page 4
S CURVE
3
2
1
0
10.3
10.5 10.7 10.9
fIN (MHz)
11.1
SIGNAL TO NOISE RATIO,
-3 dB LIMITING SENSITIVITY,
12 dB SINAD vs. SUPPLY VOLTAGE
80 -50
S/N
70 -60
60 -70
-3 dB LIMITING SENSITIVITY
50 -80
40 -90
12 dB SINAD
30
2
34
VCC (V)
5
-100
6
SIGNAL TO NOISE RATIO,
-3 dB LIMITING SENSITIVITY,
12 dB SINAD vs. TEMPERATURE
80 -50
S/N
70 -60
60 -70
-3 dB LIMITING SENSITIVITY
50 -80
12 dB SINAD
40 -90
30
-40 -20 0
20 40
TA (°C)
-100
60 80 100
January 2000 TOKO, Inc.
Page 4
Part Number TK14588V
Manufactur TOKO
Description FM IF IC
Total Page 20 Pages
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