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PT4316 Datasheet Preview

PT4316 Datasheet

Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver

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ANGUS ELECTRONICS CO., LTD
Tel: (852) 2345 0540
Fax: (852) 2345 9948
PT4316
Low Power 315/433MHz OOK/ASK Superheterodyne
Web Site: www.angus.com.hk
Receiver with SAW-based Oscillator
DESCRIPTION
The PT4316 is a very low power consumption single
chip OOK/ASK superheterodyne receiver for the 315
MHz and 434 MHz frequency bands, 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 20 dB when the
RF input signal is greater than -60 dBm. The PT4316
is available in a 16-pin SOP or SSOP package. Both
versions are specified over the extended temperature
range (-40to +85).
BLOCK DIAGRAM
FEATURES
Low current consumption (4.2 mA at VDD = 3.0 V)
2.4 V to 3.6 V supply voltage operation range
Optimized for 315 MHz or 434 MHz 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 µA)
Low external parts count
Available in 16-pin SOP or SSOP package
APPLICATIONS
Keyless entry systems
Remote control systems
Garage door openers
Alarm systems
Security systems
Wireless sensors
V1.7
1




PTC

PT4316 Datasheet Preview

PT4316 Datasheet

Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver

No Preview Available !

APPLICATION CIRCUIT
PT4316
Component
Value for 315 MHz
Peak Mode
Average Mode
Value for 434 MHz
Peak Mode
Average Mode
S1Note1
313.2 314.5
315.5 316.8
432.1 432.4
434.4 435.7
R1, R2
R3
33
10 K
33
10 K
33
10 K
33
10 K
R4
12 K
12 K
R5 1 M 1 M
R6
L1
L2
C1, C5, C10, C12
C2
C3
C4Note3
C6
C7
C8Note3
1K
56 n
82 n
100 n
10 p
1.8 p
0.56 p
470 p
150 p
1.5 p
1K
56 n
82 n
100 n
10 p
1.8 p
0.56 p
470 p
150 p
1.5 p
1K
33 n
68 n
100 n
10 p
1.8 p
0.56 p
470 p
150 p
1K
33 n
68 n
100 n
10 p
1.8 p
0.56 p
470 p
150 p
C9
C11Note3
100 p
100 p
100 p
100 p
Notes:
1. S1 is the SAW resonator, and ±700 KHz frequency difference is acceptable for 2 dB sensitivity variation.
2. The data filter and slicer are optimized for 1 K ~ 5 Kbps data rate in this application circuit.
3. The component values of C4, C8 and C11 shown in the table are optimized for the evaluation board.
Unit
MHz
H
H
F
F
F
F
F
F
F
F
F
V1.7
2


Part Number PT4316
Description Low Power 315/433 MHz OOK/ASK Superheterodyne Receiver
Maker PTC
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PT4316 Datasheet PDF






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