Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Low Power 315/433 MHz OOK/ASK Superheterodyne
Receiver with SAW-based Oscillator
PT4316
DESCRIPTION
The PT4316 is a very low power consumption single chip OOK/ASK superheterodyne receiver for the
315MHz and 434MHz frequency bands and which offers a high level of integration and requires few
external components. The PT4316 consists of a low-noise amplifier (LNA), mixer, SAW-based local
oscillator, on-chip Sallen-Key low-pass filter, intermediate frequency (IF) limiting amplifier stage with
received-signal-strength indicator (RSSI), and analog baseband data recovery circuitry (data filter,
peak detector, and data slicer). The PT4316 also implements a discrete one-step automatic gain
control (AGC) that reduces the LNA gain by 20dB when the RF input signal is greater than -60dBm.
The PT4316 is available in a 16-pin SOP or SSOP package. Both versions are specified over the
extended temperature range (-40鈩?to +85鈩?.
FEATURES
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Low current consumption (4.2mA at VDD = 3.0V)
2.4V to 3.6V supply voltage operation range
Optimized for 315MHz or 434MHz ISM Band
Saw-based oscillator with low frequency drift
High dynamic range with on-chip AGC
Power down mode with very low supply current (<1碌A(chǔ))
Low external parts count
Available in 16 pins, SOP or SSOP package
APPLICATIONS
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Keyless entry systems
Remote control systems
Garage door openers
Alarm systems
Security systems
Wireless sensors
PT4316 V1.6
-1-
August, 2007
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