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PDF TK14584 Data sheet ( Hoja de datos )
| Número de pieza | TK14584 | |
| Descripción | FM IF IC | |
| Fabricantes | TOKO | |
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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 Very Small Package (SSOP-12)
APPLICATIONS
s Communications Equipment
s Wireless LAN
s Keyless Entry Systems
TK14584
FM IF IC
DESCRIPTION
The TK14584M is a standard function general purpose IF
IC capable of operating up to 22 MHz. The TK14584M 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 TK14584M was developed for high-
speed data communication, DECT, wireless LAN, keyless
entry systems, etc.
The TK14584M is available in the very small SSOP-12
surface mount package.
ORDERING INFORMATION
TK14584M
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
January 2000 TOKO, Inc.
TK14584M
IF INPUT
DECOUPLE
DECOUPLE
NC
POWER SAVE
VCC
GND
11 RSSI
10 IF OUTPUT
9 DET INPUT
8 DET OUTPUT
7 AMP OUTPUT
BLOCK DIAGRAM
GND
-
+
AMP
VCC
Page 1
1 page  
TK14584
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C, unless otherwise specified.
SUPPLY CURRENT, OUTPUT VOLTAGE,
TOTAL HARMONIC DISTORTION
vs. TEMPERATURE
300 5
SIGNAL TO NOISE RATIO,
-3 dB LIMITING SENSITIVITY,
12 dB SINAD vs. TEMPERATURE
80 -50
260
ICC
220
VOUT
180
4
3
2
140
100
-40 -20 0
THD
20 40
TA (°C)
1
0
60 80 100
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
LIMITER GAIN vs.
INPUT FREQUENCY
100
RSSI OUTPUT VOLTAGE vs.
TEMPERATURE
2.0
80 1.8
VIN = 0 dBm
60 1.6
40
20
0
1
35
10
fIN (MHz)
30 50
1.4
VIN = -15 dBm
1.2
1.0
-40 -20
VIN = -30 dBm
0 20 40 60 80 100
TA (°C)
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)
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
January 2000 TOKO, Inc.
Page 5
5 Page 
TK14584
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 Amp INPUT
2,3: Limiting Amp
Decoupling
4 NC
5 POWER SAVE
VS
100 k
100 k
No internal connection.
However, this pin must
be connected to GND
for noise reduction.
Power Save On:
VS < 0.3 V
Power Save Off:
VS = 1.5 V to VCC
6 VCC
7 AMP OUTPUT
8 DET OUTPUT
3.0 V
1.2 V
1.2 V
1.2 V
VCC
7: Amplifier Output
8: Detector Output
9 DET INPUT
3.0 V
VCC Detector Input
January 2000 TOKO, Inc.
Page 11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet TK14584.PDF ] | |
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