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PDF TK14588V Data sheet ( Hoja de datos )
| Número de pieza | TK14588V | |
| Descripción | FM IF IC | |
| Fabricantes | TOKO | |
| Logotipo |  |
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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
1 page  
TK14588
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
100
80
60
40
20
0
1
LIMITER GAIN vs.
INPUT FREQUENCY
RSSI OUTPUT VOLTAGE vs.
TEMPERATURE
2.0
1.8
VIN = 0 dBm
1.6
1.4
VIN = -15 dBm
1.2
35
10
fIN (MHz)
30 50
1.0
-40 -20
VIN = -30 dBm
0 20 40 60 80 100
TA (°C)
Data Comparator Output Voltage Transient Response
(Rise)
(Fall)
OUT
(1V/div)
OUT
(1V/div)
IN
(10 mV/div)
50 ns/div
RSSI OUTPUT VOLTAGE vs.
TEMPERATURE
1.0
VIN = -45 dBm
0.8
0.6
VIN = -60 dBm
0.4
VIN = -75 dBm
0.2
0.0
-40 -20
VIN = -90 dBm
0 20 40 60 80 100
TA (°C)
January 2000 TOKO, Inc.
IN
(10 mV/div)
50 ns/div
RSSI OUTPUT VOLTAGE vs.
INPUT VOLTAGE
2.0
1.6
1.2
TEMP (deg)
-30
0.8
0
25
50
70
0.4 85
0.0
-120 -100 -80 -60 -40 -20
VIN (dBm)
0
20
Page 5
5 Page 
TK14588
PIN FUNCTION DESCRIPTION
TERMINAL
PIN
NO.
SYMBOL
1 IF INPUT
2 DECOUPLE
3 DECOUPLE
VOLTAGE
1.9 V
1.9 V
1.9 V
INTERNAL EQUIVALENT CIRCUIT
1.8 k
VCC
100 k
100 k
DESCRIPTION
1: Limiting Amplifier
INPUT
2,3: Limiting Amplifier
Decoupling
4 NC
No internal connection.
However, this pin must
be connected to GND
for noise reduction.
5 POWER SAVE
VS
Power Save On:
VS < 0.3 V
100 k
Power Save Off:
100 k VS = 1.5 V to VCC
6 VCC
7 COMP OUT
8 COMP GND
3.0 V
0V
7: Data Comparator
Output
VCC 8: Data Comparator
GND
9 COMP INPUT
10 COMP INPUT
9,10: Data Comparator
VCC Input
January 2000 TOKO, Inc.
Page 11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet TK14588V.PDF ] | |
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