TK14551VTL

Manufacturer Part NumberTK14551VTL
ManufacturerTOKO, Inc
TK14551VTL datasheet
 
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FEATURES
IF Input Frequency ~90 MHz (TYP)
Balanced Input (IF)
Includes Dual High Speed RSSI Outputs. One is for
ASK demodulation, another one is for carrier
sensing.
RSSI outputs are accurate with stable temperature
characteristic and include buffer amplifiers.
High Speed RSSI Comparator for Carrier Sensing
HIgh Speed Data Comparator (~2 Mbps)
Wide Band Demodulator (~1 MHz)
Battery Save Function
Low Voltage Operation: 3.0 ~ 5.5 V
Very Small Package (TSSOP-24)
DESCRIPTION
The TK14551V is a wide band IF IC capable of operating
up to 90 MHz. It includes an FM demodulator, RSSI, RSSI
comparator and data comparator. These functions can
perform high-speed operations. The TK14551V 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. Because the TK14551V includes a dual
high-speed RSSI output, it is possible to demodulate AM
simply and to sense the carrier level at the same time.
Therefore, the TK14551V is suitable for high-speed data
communication and can be used for various applications.
The TK14551V is available in the very small TSSOP-24
surface mount package.
ORDERING INFORMATION
TK14551V
January 2000 TOKO, Inc.
APPLICATIONS
Wide Band FSK Demodulation
Wide Band FM Demodulation
Video Signal Demodulation
Wide Band ASK Demodulation
Tape/Reel Code
TAPE/REEL CODE
TL: Tape Left
TK14551V
FM IF DETECTOR/AMPLIFIER
TK14551
IF DECOUPLE
IF INPUT (-)
IF DECOUPLE
23
IF INPUT (+)
IF OUTPUT
22
IF GND
21
FM DEMODULATOR INPUT
BATTERY SAVE
IF V CC
20
RSSI COMP BIAS
19
RSSI OUTPUT-1
GND
V CC
18
RSSI OUTPUT-2
17
RSSI BUFFERED OUTPUT-1
FM DEMODULATOR AMP INPUT
FM DEMODULATOR AMP OUTPUT
16
RSSI COMP OUTPUT
RSSI BUFFERED OUTPUT-2
15
RSSI COMP GND
DATA COMP INPUT (-)
14
DATA COMP GND
DATA COMP INPUT (+)
13
DATA COMP OUTPUT
BLOCK DIAGRAM
BIAS
IF
AMP
RSSI
RSSI
Comparator
Demodulator
V CC
V CC
BUFF2
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TK14551VTL Summary of contents