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 oC to +85 oC) temperature range. FEATURES • • • • • • • • • 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 • • • • • • Keyless entry systems Remote control systems Garage door openers Alarm systems Security systems Wireless sensors PT4301 REF1.3 -1- July, 2007 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 PT4301 REFERENCE BLOCK DIAGRAM PT4301 internal block diagram (SSOP-24) DATA DSP DSN 21 19 16 PDOUT 22 DFO OPP DFFB 15 17 18 LIMINB LIMIN 14 13 Data Slicer CE 23 RSSI Peak Detector Bias Limiter with RSSI AGCDIS 12 20 Data Filter XIN 24 Regulator X'tal Oscillator XOUT I LO Buffer PLL VCO 1 VDD5 2 VDDIF 6 VDDRF 0o AGC Q Loop Filter VDDDIG 11 VSSDIG PT4301 REF1.3 90o LNA 10 3 4 5 7 8 LNAIN VSSNA LNAOUT MIXIN VSSMIX -2- 9 MIXOUT July, 2007 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 PIN DESCRIPTION Pin Number Pin Name I/O 1 2 3 4 5 6 7 8 9 10 11 12 13 14 XOUT VDDIF LNAIN LNASRC VSSLNA LNAOUT VDDRF MIXIN MIXINB VSSMIX NC MIXOUT VSSDIG VDDDIG O P I I/O G O P I I I ─ I G P 12 15 AGCDIS I ─ 13 14 15 16 16 17 18 19 20 NC LIMIN LIMINB DFO DSN ─ I I O I 17 21 OPP I 18 19 20 21 22 22 23 24 25 26 DFFB DSP VDD5 DATA PDOUT I/O I P O O 23 27 CE I 24 28 XIN I SSOP-24 TSSOP-28 1 2 3 ─ 4 5 6 7 ─ 8 ─ 9 10 11 PT4301 REF1.3 -3- Description Crystal oscillator output Power supply for IF portion LNA input Source pin for LNA core Ground for LNA LNA output Power supply for RF portion Mixer input Mixer de-coupling input Ground for image-rejection mixer No connection Mixer output Ground for LO and digital portions Power supply for LO and digital portions AGC control pin. Pull high (connect to VDD5) to disable AGC No connection Limiting amplifier input Limiter amplifier de-coupling input Data filter output Negative data slicer input Non-inverter OP Amp. input for Sallen-key data filter Data filter feedback node Positive data slicer input 5V supply voltage Data output Peak detector output Chip enable pin. Pull high (connect to VDD5) to power on the chip. Crystal oscillator input July, 2007 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 PT4301 REFERENCE ABSOLUTE MAXIMUM RATINGS VSS = 0 V Parameter Symbol Rating VDD VSS – 0.3 to VSS + 6.0 Supply Voltage Range Unit V Operating Temperature Range TOPR – 40 to 85 o Storage Temperature Range TSTG – 55 to 125 o o Soldering Temperature TSLD 225 Soldering Time tSTG 10 C C C s RECOMMENDED OPERATING CONDITIONS VSS = 0 V Parameter Symbol Value Min. Typ. Max. Supply Voltage Range VDD5 2.4 5.0 5.5 Operating Temperature TA – 40 27 85 PT4301 REF1.3 -4- Unit V o C July, 2007 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 PT4301 REFERENCE ELECTRICAL CHARACTERISTICS Nominal conditions: VDD= 5.0 V, VSS = 0 V, CE = “HIGH”, Temp= +27 °C. Parameter Symbol Condition Value Min. Typ. Max. Unit General Characteristics Frequency Range Maximum Receiver Input Level fRF 250 PRF, MAX –25 b Sensitivitya SIN IMR LO Leakage LLO System Start-up Time Tstart-up MHz dBm ASK , peak power level @315 MHz –114 –112 dBm OOK, peak power level @315 MHz –108 –106 dBm ASK, peak power level @434 MHz –112 –110 dBm OOK, peak power level @434 MHz –106 –104 dBm 2 100 Kb/s Data Ratec Image Rejection Ratio 500 –20 25 35 dB Measured at RF input –80 dBm RF input power = –60 dBm 10 mS 5.5 V Power Supply Supply Voltage VDD Consumption DC Current IDD Standby DC Current Istand-by Connect the supply voltage to VDD5 pin only 2.4 5.0 CE = “HIGH” @315 MHz 5 5.5 mA CE = “HIGH” @434 MHz 5.3 5.83 mA 1.0 µA CE = “LOW” LNA Matched to 50 Ω @315 MHz 13 16 20 dB Matched to 50 Ω @434 MHz 12 15 18 dB 3.6 dB Power Gain GLNA Noise Figure NFLNA Matched to 50 Ω IIP3LNA Matched to 50 Ω Input third-order Intermodulation Intercept Point –20 dBm Auto Gain Control (AGC)d AGC Hysteresis HAGC 6 LNA Voltage Gain Reduction GRed 20 dB 30 dB 20 AGC Delay Time DYAGC (2 )× TREF TREF=1/fREF ms Down-conversion Mixer Conversion voltage gain GMIX Input third-order intermodulation intercept point IIP3MIX Output Impedance ZOUT,MIX @315 MHz 15 18 22 dB @434 MHz 12 15 18 dB –18 dBm Ω 330 PLL Reference Frequency PT4301 REF1.3 fREF 6 -5- 16 MHz July, 2007 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 Parameter VCO Frequency Range Symbol Condition fVCO PT4301 REFERENCE Value Min. Typ. 220 Max. 550 Unit MHz Limiter Amplifier and RSSI IF Frequency fIF 10.7 MHz Input Impedance ZIN,LIM 330 Ω RSSI Dynamic Range DRRSSI 80 dB RSSI Gain SLRSSI 13 mV/dB Data Slicer Data Rate 2 100 Kb/s Note: a. BER=1e-3, Data rate=2 Kb/s. b. It can either utilize AM 99% with square wave modulation if the equipment has the limitation. c. The selection of data rate depends on the component values of data filter, peak detector and slicer. d. AGC hysteresis and LNA gain reduction depend on the gain setting and matching circuits of LNA. The AGC delay time depends on the PLL reference frequency. e. The bandwidth of data filter depends on the external components. PT4301 REF1.3 -6- July, 2007 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 FUNCTION DESCRIPTION PT4301 REF1.0 -7- June , 2003 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 APPLICATION CIRCUIT For SSOP24 package C15 C14 X1 C2 C4 C3 L1 VDD 1 XOUT XIN 24 2 VDDIF CE 23 3 LNAIN 4 VSSLNA PDOUT 22 DATA 21 VDD R4 5 LNAOUT VDD5 20 6 VDDRF DSP 19 7 MIXIN DFFB 18 8 VSSMIX OPP 17 9 MIXOUT DSN 16 10 VSSDIG DFO 15 11 VDDDIG LIMINB 14 12 AGCDIS LIMIN 13 C13 VDD L2 R1 R3 C6 C12 C11 C7 C5 R2 VDD C9 C10 C8 C1 PT4301 REF1.0 FLT -8- June , 2003 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 PACKAGE INFORMATION SSOP-24 Unit: mm Symbol Min. Nom. Max. Symbol Min. Nom. Max. A A1 A2 b C D E 1.35 0.1 — 0.20 0.19 8.55 5.8 1.6 — 1.45 0.25 — — 6.0 1.75 0.25 — 0.3 0.25 8.75 6.2 E1 e L y θ L1 3.8 — 0.4 — 0° 0.95 3.9 0.64 — — — 1.05 4.0 — 1.27 0.1 8° 1.15 Note: 1. Package body sizes exclude mold flash and gate burrs. 2. Dimension is measured in gage plan. 3. Tolerance 0.10 mm unless other specified. 4. Controlling dimension is millimeter converted inch dimensions are not necessarily exact. 5. Followed from JEDEC MO-137. PT4301 REF1.0 -9- June , 2003 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 TSSOP-28 Unit: mm Symbol Min. Nom. Max. Symbol Min. Nom. Max. A A1 A2 b C D E — 0.05 0.8 0.19 0.09 9.6 6.2 — — 1.0 — — 9.7 6.4 1.2 0.15 1.05 0.3 0.2 9.8 6.6 E1 e L y θ L1 4.3 — 0.45 — 0° 0.9 4.4 0.65 0.6 — — 1.0 4.5 — 0.75 0.1 8° 1.1 Note: 1. Package body sizes exclude mold flash and gate burrs. 2. Dimension is measured in gage plan. 3. Tolerance 0.10 mm unless other specified. 4. Controlling dimension is millimeter converted inch dimensions are not necessarily exact. 5. Followed from JEDEC MO-153. PT4301 REF1.0 - 10 - June , 2003 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 ORDER INFORMATION Valid Part Number Package Type Top Code PT4301-X (L) PT4301-TX (L) 24 Pins, SSOP, 150 mil 28 Pins, TSSOP, 173 mil PT4301-X PT4301-TX Notes: 1. (L) means Lead Free. 2. The Lead Free mark is placed in-front of the date code. PT4301 REF1.0 - 11 - July , 2007 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 REVISION HISTORY Date Revision 07/09/07 Ref 1.0 26/09/07 Ref 1.1 Comments Original document Majority modification in package type and supply voltage PT4301 REF1.0 range - 12 - July , 2007