PT4316 SAW-based ASK/OOK Receiver IC Advance Information Princeton Technology Corp. reserves the right to change the product described in this datasheet. All information contained in this datasheet is subject to change without prior notice. Princeton Technology Corp. assumes no responsibility for the use of any circuits shown in this datasheet. Description The PT4316 is a high performance 315/433 MHz ASK/OOK receiver for the Remote Keyless Entry (RKE) systems. The chip consists of a LNA, mixer, integrated IF filter, limiter, data filter, data slicer, peak detector and SAW oscillator. Features Supply voltage: 2.4V to 3.6V Frequency range: 250MHz to 500MHz, depend on the external SAW resonator. Sensitivity: -103dBm Current consumption: 4mA Data rate: 10Kbps maximum High dynamic range with on-chip AGC SOP16 package Applications Wireless mouse Video sender remote controller Car alarm and home security system Block Diagram Antenna LNA Mixer IF Low-pass Filter Limiter with RSSI SAW Filter Data Filter RSSI Buffer Data Slicer SAW Oscillator Peak Detector Data Output SAW Resonator Page 1 March 2006 PT4316 ASK/OOK Receiver IC Pin Descriptions Number Name Description 1 CE 2 CAGC AGC capacitor 3 RFIN RF input 4 VSSLNA Ground for LNA 5 LNAOUT LNA output 6 LIMIN Limiting amplifier de-coupling input 7 DFFB Data filter feedback point 8 DSP Positive input of data slicer (data filter output) 9 VDD Power supply 10 OPP Non-inverting OP Amp input 11 PDOUT 12 DSN 13 DATA 14 VSS 15 OSCIN Oscillator input 16 OSCOUT Oscillator output Chip enable Peak detector output Negative input of data slicer Data output Ground Package Outline Page 2 March 2006 PT4316 ASK/OOK Receiver IC Absolute Maximum Ratings VSS = 0 V Parameter Symbol Rating Unit Supply voltage VDD VSS – 0.5 to VSS + 8.0 V Operating temperature range TOPR –40 to 85 °C Storage temperature range TSTG –55 to 150 °C Soldering temperature range TSLD 255 °C Soldering time range tSLD 10 s Recommended Operating Conditions VSS= 0 V Parameter Symbol Value typ. max. 3.0 3.6 V 500 MHz 60 °C Supply voltage range VDD 2.4 RF input frequency fRFIN 250 TA –10 Operating temperature Page 3 Unit min. 25 March 2006 PT4316 ASK/OOK Receiver IC Electrical Characteristics Nominal conditions: VDD= 3.0 V, VSS = 0 V, CE = “high”, Temp= 27 °C, fRF = 433 MHz Specification Parameter Symbol Condition Value min typ Unit max General characteristics Frequency range Maximum receiver input level Sensitivity Data rate fRF 250 PRF,MAX -20 SIN 500 -10 MHz dBm Peak power level@315MHz, BER=1e-3@2Kbps -103 -100 dBm Peak power [email protected] BER=1e-3@2Kbps -103 -100 dBm 1 10 KHz 3.0 3.6 V DATArate Power Supply Supply voltage VDD Consumption dc current IDD 2.4 4.0 mA 1.0 µA 16 18 dB 3 3.6 dB Istandby CE = low Power gain GLNA Matched to 50 Ω Noise figure NFLNA Matched to 50 Ω Input third-order intermodulation intercept point IIP3LNA Matched to 50 Ω -18 -12 dBm Input –1-dB compression point P–1dB,LNA Matched to 50 Ω -22 -20 dBm AGC attack and decay ratio RAAGC Tattack÷Tdecay 0.1 — AGC leakage current ILeak,AGC ±100 nA dB Total dc current (stand-by mode) LNA Auto Gain Control (AGC) Down-conversion Mixer GMIX 12 13 Noise figure (DSB) NFDNMIX 13 14 Input third-order intermodulation intercept point IIP3MIX -5 dBm Input –1-dB compression point P–1dB,MIX -15 dBm Output Impedance ZMIX_OUT TDB Ohm Conversion voltage gain 16 dB IF Filter Page 4 March 2006 PT4316 ASK/OOK Receiver IC Specification Parameter Symbol Condition Value min Bandwidth BW Set 3dB Bandwidth from 0.3MHz to 2.3MHz typ Unit max 2 MHz Oscillator Start-up time 100 µs Limiter Amplifier FIF 2 MHz GLIM 80 dB Bandwidth BWLIM 2 Noise figure NFLIM 15 dB Input Impedance ZLIM_IN TDB Ohm RSSI dynamic range DRRSSI 80 dB RSSI level LVRSSI IF frequency Gain 2.5 MHz PRF< -120dBm 1.0 PRF> -50dBm 2.0 Low-pass Sallen-Key filter 1 30 KHz 30 KHz V Data Filter Bandwidth BWDF Data Slicer Comparator bandwidth BWDS 1 Maximum load capacitance CLoad,DF 20 Page 5 pF March 2006 PT4316 ASK/OOK Receiver IC Application Circuit ENABLE C1 C3 L1 C2 L2 1 2 3 4 C4 5 R2 C5 6 7 VCC C6 R1 8 CE OSCOUT CAGC OSCIN RFIN VSS VSSLNA DATA LNAOUT DSN LIMB PDOUT DFFB OPP DSP VCC PT4316-C12 Page 6 16 S1 15 14 13 R5 DATA 12 11 10 9 R4 C10 C9 C8 R3 VCC C7 March 2006