Preliminary
PT4317
Low Power 315/433MHz OOK/ASK
Superheterodyne Receiver with
SAW-Based Oscillator
DESCRIPTION
The PT4317 is a low power single chip OOK/ASK
superheterodyne receiver for the 315MHz and
434MHz frequency bands that offers a high level of
integration and requires few external components.
The PT4317 consists of a low-noise amplifier (LNA),
down-conversion mixer, SAW-based local oscillator,
on-chip gm-C band-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 PT4317 is available in a 16-pin SSOP
package.
FEATURES
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Low current consumption (4.7mA at VDD=5.0V)
2.4V to 5.5V supply voltage operation range
Optimized for 315MHz or 434MHz ISM Band
Saw-based oscillator with low frequency drift
On-chip IF filter with better adjacent channel
rejection capability
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Power down mode with very low supply current
(<1μA)
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Low external parts count
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16-pin SSOP package
APPLICATIONS
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Remote Keyless Entry (RKE) systems
Remote control systems
Garage door openers
Alarm systems
Security systems
Wireless sensors
BLOCK DIAGRAM
Tel: 886-66296288
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Fax: 886-29174598
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http://www.princeton.com.tw
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2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan
PTC [ PRINCETON TECHNOLOGY CORP ]
