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TH7120 Datasheet

  • TH7120

  • 300 to 930MHz FSK/FM/ASK Transceiver

  • 28頁(yè)

  • ETC

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TH7120
300 to 930MHz
FSK/FM/ASK Transceiver
Features
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Single chip solution with only a few external components
Stand-alone fixed-frequency transceiver operation modes
Programmable multi-channel transceiver operation modes
Low current consumption in active mode and very low standby current
PLL-stabilized RF VCO (LO) with internal varactor diode
Lock detection in programmable channel applications
3wire bus serial control interface
FSK/ASK modulation selection
FSK for digital data and FM for analog signal reception
RSSI allows signal strength indication and ASK detection
Switchable LNA gain for improved dynamic range
Automatic PA turn-on after PLL lock
FM possible with external varactor
ASK modulation achieved by on/off keying
AFC option for extended input frequency acceptance range
Surface mount package LQFP32
Ordering Information
TH7120
(TH7120-03)
Part No. (Engineering Samples)
Application Examples
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General bi-directional half duplex digital data transmission or analog signal transmission
Low-power telemetry
Alarm and security systems
Keyless car and central locking
Domotics
Model control
P
IN
IM
L
E
R
Temperature Code
E (-40 擄C to 85 擄C)
Y
R
A
Package Code
NE (LQFP32)
Technical Data Overview
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Frequency range: 300 MHz to 930 MHz for programmable channel applications
315 MHz, 433 MHz, 868 MHz or 915 MHz fixed-frequency single-channel variants
Power supply range: 2.5 V to 5.5 V
Temperature range: -40 擄C to +85 擄C
Standby current: 50 nA
Operating current: 6.0 mA in receive mode at low gain
Operating current 9.0 mA in transmit mode at 0 dBm output power
Adjustable output power range from 鈥?5 dBm to +6 dBm
Sensitivity: -103 dBm at FSK with 150 kHz IF filter BW
Sensitivity: -105 dBm at ASK with 150 kHz IF filter BW
Maximum data rate for FSK and ASK: 60 kbit/s NRZ
Maximum input level: 鈥?0 dBm at FSK and -20 dBm at ASK
Input frequency acceptance:
鹵
50 kHz (with AFC option)
Frequency deviation range:
鹵5
kHz to
鹵100
kHz
Maximum analog modulation frequency: 20 kHz
3 MHz to 12 MHz crystal reference
3901007120
Rev. 005
Page 1 of 28
Data Sheet
Jan. 2002

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