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TK14551V

TOKO
Part Number TK14551V
Manufacturer TOKO
Description FM IF DETECTOR/AMPLIFIER
Published Apr 16, 2005
Detailed Description TK14551V FM IF DETECTOR/AMPLIFIER FEATURES s IF Input Frequency ~90 MHz (TYP) s Balanced Input (IF) s Includes Dual High...
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TK14551V
TK14551V


Overview
TK14551V FM IF DETECTOR/AMPLIFIER FEATURES s IF Input Frequency ~90 MHz (TYP) s Balanced Input (IF) s Includes Dual High Speed RSSI Outputs.
One is for ASK demodulation, another one is for carrier sensing.
s RSSI outputs are accurate with stable temperature characteristic and include buffer amplifiers.
s High Speed RSSI Comparator for Carrier Sensing s HIgh Speed Data Comparator (~2 Mbps) s Wide Band Demodulator (~1 MHz) s Battery Save Function s Low Voltage Operation: 3.
0 ~ 5.
5 V s Very Small Package (TSSOP-24) APPLICATIONS s s s s Wide Band FSK Demodulation Wide Band FM Demodulation Video Signal Demodulation Wide Band ASK Demodulation TK14551 IF DECOUPLE IF INPUT (-) 23 IF INPUT (+) 22 IF GND 21 BATTERY SAVE 20 RSSI COMP BIAS 19 RSSI OUTPUT-1 18 RSSI OUTPUT-2 17 RSSI BUFFERED OUTPUT-1 16 RSSI COMP OUTPUT 15 RSSI COMP GND 14 DATA COMP GND 13 DATA COMP OUTPUT 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.
IF DECOUPLE IF OUTPUT FM DEMODULATOR INPUT IF VCC GND VCC FM DEMODULATOR AMP INPUT FM DEMODULATOR AMP OUTPUT RSSI BUFFERED OUTPUT-2 DATA COMP INPUT (-) DATA COMP INPUT (+) BLOCK DIAGRAM RSSI BUFFERED OUTPUT-1 DATA COMP OUTPUT DATA COMP INPUT (+) Data Comparator VCC BUF...


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