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PTC

PT4302 Datasheet Preview

PT4302 Datasheet

Ultra-Low Power OOK/ASK Receiver

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DESCRIPTION
The PT4302 is an ultra-low power OOK/ASK super
heterodyne receiver for the 315/433.92 MHz frequency
bands. It offers a high level of integration and requires
only few external components. The PT4302 consists of
a low-noise amplifier (LNA), a down-conversion mixer,
an on-chip phase-locked loop (PLL) with integrated
voltage-controlled oscillator (VCO) and loop filter, an
OOK/ASK demodulator, a data filter, a data slicing
comparator and an on-chip regulator. The PT4302
also implements a discrete one-step automatic gain
control (AGC) that reduces the LNA gain when the RF
input signal is greater than –68 dBm. The AGC
circuitry can extend the dynamic range of received RF
signal.
The PT4302 is available in a 16-pin SSOP package
and is specified over the extended temperature range
(–40 to +85°C).
PT4302
Ultra-Low Power OOK/ASK Receiver
FEATURES
Ultra-low power consumption: 2.7 mA for full
operation (315 MHz)
Few external components
Excellent sensitivity of the order of –111 dBm
(peak ASK signal level)
2.4 V to 5.5 V supply voltage range
250 MHz to 500 MHz frequency range
Data rate up to 10 Kb/s
APPLICATIONS
Automotive remote keyless entry (RKE)
Remote control
Garage door and gate openers
Suitable for applications that meet either the
European ETSI-300-220 or the North American
FCC (Part 15) regulatory standards
BLOCK DIAGRAM
REFOSC
16
VLO
15
CTH
14
Reference
Oscillator
PLL
DO CE SELA SELB VSSBB
13 12 11 10 9
Control Logic
Comparator
RTH
Data Filter
(LPF)
OOK/ASK
Demodulator
AGC
LNA
Mixer
Buffer
Amplifier
On-Chip
Regulator
1
VSSLO
2
VSSRF
3
ANT
4
VRF
5
MIXOUT
6
VBB
78
IFIN VDD5
Tel: 886-66296288Fax: 886-29174598http://www.princeton.com.tw2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan




PTC

PT4302 Datasheet Preview

PT4302 Datasheet

Ultra-Low Power OOK/ASK Receiver

No Preview Available !

433.92 MHZ RKE EXAMPLE
PT4302
V1.2
2 October 2012


Part Number PT4302
Description Ultra-Low Power OOK/ASK Receiver
Maker PTC
PDF Download

PT4302 Datasheet PDF






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