TH72001KDC Melexis Inc, TH72001KDC Datasheet
TH72001KDC
Manufacturer Part Number
TH72001KDC
Description
315 MHZ, FSK TRANSMITTER
Manufacturer
Melexis Inc
Specifications of TH72001KDC
Frequency
315MHz
Applications
Alarm and Security Systems, RKE
Modulation Or Protocol
FSK
Data Rate - Maximum
40 kbps
Power - Output
-10dBm ~ 11dBm
Current - Transmitting
3.2mA ~ 10.3mA
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Voltage - Supply
1.9 V ~ 5.5 V
Operating Temperature
-40°C ~ 125°C
Package / Case
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Features
-
Memory Size
-
Other names
Q3477881
TH72001.2
TH72001.2
TH72001
315MHz FSK Transmitter
The TH72001 FSK transmitter IC is designed for applica-
tions in the 315 MHz industrial-scientific-medical (ISM)
band. It can also be used for any other system with car-
rier frequencies ranging from 290 MHz to 350 MHz.
The transmitter's carrier frequency f
the frequency of the reference crystal f
PLL synthesizer ensures that each RF value, ranging from
290 MHz to 350 MHz, can be achieved. This is done by
using a crystal with a reference frequency according to:
f
Features
• Fully integrated PLL-stabilized VCO
• Frequency range from 290 MHz to 350 MHz
• Single-ended RF output
• FSK through crystal pulling allows modulation from DC to 40 kbit/s
• High FSK deviation possible for wideband data transmission
• Wide power supply range from 1.95 V to 5.5 V
• Wide operating temperature range from –40° C to 125° C
• Very low standby current
• On-chip low voltage detector
• High over-all frequency accuracy
• FSK deviation and center frequency independently adjustable
• Adjustable output power range from -12 dBm to +11 dBm
• Adjustable current consumption from 3.2 mA to 10.3 mA
• Conforms to FCC part 15 and similar standards
• 8-pin Small Outline Integrated Circuit (SOIC8)
ref
= f
c
/N, where N = 32 is the PLL feedback divider ratio.
c
ref
is determined by
. The integrated
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TH72001KDC Summary of contents
Page 1
TH72001 315MHz FSK Transmitter The TH72001 FSK transmitter IC is designed for applica- tions in the 315 MHz industrial-scientific-medical (ISM) band. It can also be used for any other system with car- rier frequencies ranging from 290 MHz to 350 ...
Page 2
Block Diagram with external Components 4 mode ENTX control 3 ROI XOSC XBUF XTAL 2 FSKSW CX2 CX1 1 FSKDTA Applications • General digital data transmission • Tire Pressure Monitoring Systems (TPMS) • Remote Keyless Entry (RKE) • Low-power telemetry ...