Tel: 886-2-66296288
Fax: 886-2-29174598
URL: http://www.princeton.com.tw
Low Power High Sensitivity 315/433 MHz OOK/ASK
Superheterodyne Receiver
REFERENCE
PT4301
DESCRIPTION
The PT4301 is a very low power consumption and high sensitivity single chip OOK/ASK
superheterodyne receiver for the 315 MHz and 434 MHz frequency bands and which offers a high level
of integration and requires only a few external components. The PT4301 consists of a low-noise
amplifier (LNA), an image-rejection mixer with poly-phase filter, a on-chip phase-locked loop (PLL) with
integrated voltage-controlled oscillator (VCO) and loop filter, a 10.7 MHz 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 PT4301 also implements a discrete
one-step automatic gain control (AGC) that drops the LNA gain by 20 dB when the RF input signal is
greater than –60 dBm. The PT4301 is available in 28-pin SSOP package and specified for the
extended (–40
o
C to +85
o
C) temperature range.
FEATURES
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Low current consumption (5 mA at VDD = 5.0 V)
2.5 V to 5.5 V supply voltage operation range
Optimized for 315 MHz or 434 MHz ISM Band
On-chip image-rejection function
High dynamic range with on-chip AGC
Power down mode with very low supply current (<1
µA)
High Sensitivity of -114 dBm
Low external parts count
24-pin SSOP or 28-pin TSSOP package
APPLICATIONS
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Keyless entry systems
Remote control systems
Garage door openers
Alarm systems
Security systems
Wireless sensors
PT4301 REF1.3
-1-
July, 2007
PTC [ PRINCETON TECHNOLOGY CORP ]
