RX3310A UHF ASK Receiver DESCRIPTION FEATURES The RX3310A is a fully integrated, amplitude-shift-keying (ASK) modulation, single chip receiver. It is designed to operate in a variety of low power radio applications. All popular radio frequencies from 250 MHz to 450 MHz may be supported by simply choosing the appropriate external components. Particular emphasis has been placed on low current consumption. • • • • • Wide frequency range: 250 MHz to 450 MHz High sensitivity Low power consumption High integration level SOP 18L package or SSOP 20L (150 mil) package APPLICATIONS • Remote control systems • Car alarm and other security systems • Baby finder, wireless doorbell, wireless toys BLOCK DIAGRAM Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan For:Natertech RX3310A APPLICATION CIRCUIT 18 PINS, SOP 20 PINS, SSOP Note: Ct1, Ct2 are added for the temperature compensation. Not necessary. V2.0 2 For:Natertech RX3310A EXTERNAL COMPONENTS Component C1 C2 C3 C4 C5 C6 C7 C8 C9 C10 C11 C12 C13 Ct1 Ct2 R1 R2 L1 L2 L3 Frequency Band (MHz) 315 434 8.2 6.8 100 100 560 560 1 1 1 1 10 10 10 10 100 100 4.7 8.2 100 120 10 10 3.3 3.3 470 470 100 680 2.5 100 100 100 680 1.5 56 68 Unit Tolerance Remark pF pF pF µF nF nF nF pF pF pF nF µF pF ±0.5pF ±5% ±10% ±10% ±10% ±10% ±10% ±0.25pF ±0.25pF ±5% ±10% ±10% ±10% TC = NPO TC = NPO TC = X7R TC = Y5V TC = X7R TC = X7R TC =X7R TC = NPO TC = NPO TC = NPO TC = X7R TC = Y5V TC = X7R KΩ Ω T nH nH ±5% ±5% TC = ±200 ppm TC = ±200 ppm tunable Note: All components are SMD 0603 type. V2.0 3 For:Natertech RX3310A ORDER INFORMATION Valid Part Number Package Type RX3310A 18 Pins, SOP, 300mil RX3310A 20 Pins, SSOP, 150mil Top Code HiMARK RX3310A-LF HiMARK RX3310A-LF PIN CONFIGURATION 18 PINS, SOP 20 PNS, SSOP V2.0 4 For:Natertech RX3310A PIN DESCRIPTION Pin Name I/O Description OSC1 OSC2 FO CPA CPB CPO VSS DATA IO IO O I I I GND O DISABLE I CPC LIN VCC LFB VIRF VEE VORF MIXIN VCC I I POWER IO I GND O I POWER Oscillator tank connection Oscillator tank connection IF filter output Comparator input A Comparator input B Comparator offset adjustment Ground Data output Disable input. See Electrical Characteristics (VCC = 5.0 V) on page 6 Comparator input C Limiter input Positive supply voltage Limiter feedback B RF amplifier input (requires external ac decoupling capacitor) Ground for RF amplifier RF amplifier output Mixer input (requires external ac decoupling capacitor) Positive supply voltage V2.0 Pin No. 18-pin SOP 20-pin SSOP 1 20 2 1 3 2 4 3 5 4 6 5 7 6, 7 8 8 9 9 10 11 12 13 14 15 16 17 18 10 11 12 13 14 15 16 17 18, 19 5 For:Natertech RX3310A FUNCTION DESCRIPTION RF AMPLIFIER The RF amplifier uses a common emitter configuration with a separate emitter connection (VEE). The input signal (VIRF) should be ac-coupled externally. The output of the amplifier is open collector so that the gain may be set with an external tuned load. MIXER The mixer is doubly-balanced configuration and has an ac-coupled input. OSCILLATOR A balanced oscillator configuration is used with an L-C tank externally connected across the OSC1 and OSC2 pins. The frequency of the oscillator is determined by the external capacitor, C1, and inductor, L1 (please refer to application circuit schematic). IF AMPLIFIER The IF amplifier is a differential input, single-ended output emitter-coupled pair. It is used to provide additional gain in order to reduce the influence of the noise of the succeeding limiter amplifier on the total receiver noise figure. IF FILTER To minimize external component costs, an active IF filter is fully integrated. LIMITER The limiting amplifier consists of several dc-coupled amplifier stages and outputs an RSSI signal. COMPARATOR Following the limiting amplifier, the RSSI signal is passed through an additional buffer stage and is then fed to the comparator's positive and negative terminals, which possess different R-C filter time constants. A larger off-chip capacitor is used at the negative comparator input and hence, its terminal voltage represents the average value of the RSSI signal. A smaller off-chip capacitor is used at the positive comparator input and this allows the positive input to follow the RSSI signal instantaneously. When the received RSSI signal exceeds its average value (when an ASK on signal is received), the comparator output is switched on. BAND GAP REFERENCE A band gap reference provides precise biasing of the entire chip over temperature. V2.0 6 For:Natertech RX3310A ABSOLUTE MAXIMUN RATINGS (VSS = 0 V) Parameter Supply voltage Operating temperature range Storage temperature range Soldering temperature range Soldering time range Symbol VCC Topr Tstg TSLD tSLD Rating VSS-0.3 to VSS+6.0 -20 to +60 -60 to +125 255 10 Unit V ℃ ℃ ℃ s RECOMMENDED OPERATING CONDITIONS (VSS = 0 V) Parameter Symbol Supply voltage range Operating temperature VCC TA Value Typ. 3.0 - Min. 2.4 -20 Unit Max. 6.0 60 V ℃ RECEIVER CHARACTERISTICS (Unless otherwise specified, VCC = 3.0 V, VSS = 0 V, LO-RF = 1.8 MHz, All test at TA = 25℃) Value Parameter Symbol Condition Min. Typ. VCC = 3.0 V, TA = 27℃, AM99%, -100 -98 Sensitivity Psens (-104) (-102) sine wave (ASK square wave) Maximum input power Pin,max -35 Receiver turn-on time tON Max. Unit dBm -30 5 dBm ms ELECTRICAL CHARACTERISTICS (Unless otherwise specified, VCC = 3.0 V, VSS = 0 V, All test at TA = 25℃) Parameter Symbol Supply current Standby current Disable pin input logic highNote1 Disable pin input logic lowNote1 Data output logic high Data output logic low ICC ICC,sb VDIH VDIL VOH VOL Condition Min. DISABLE = high 2.3 Value Typ. 3 5 3.0 Max. 4.5 10 0.8 VPPNote2-0.3V 0.3 Unit mA µA V V V V (Unless otherwise specified, VCC = 5.0 V, VSS = 0 V, All test at TA = 25℃) Parameter Symbol Supply current Standby current Disable pin input logic highNote1 Disable pin input logic lowNote1 Data output logic high Data output logic low ICC ICC,sb VDIH VDIL VOH VOL Condition Min. DISABLE=high 4.3 Value Typ. 4.5 5 5.0 Max. 5.0 10 0.8 VPPNote2-0.3V 0.3 Unit mA µA V V V V Notes: 1. If the Disable pad is connected to an off-chip signal (open), then the pad is internally grounded. 2. VPP is the pull-up voltage for open collector data output. V2.0 7 For:Natertech RX3310A EVALUATION BOARD LAYOUT (EXAMPLE) 20 PINS, SSOP RX3310A PCB Top Layout RX3310A PCB Bottom Layout Notes: 1. From top to bottom: Component side of printed-circuit board, top side, bottom side. 2. The PCB portal file is available. The real size printed-circuit board is available. (Real-size: 1753 mil x 934 mil) 3. Suggested board material: FR4, thickness: 1.0 mm V2.0 8 For:Natertech RX3310A PACKAGE INFORMATION 18 PINS, SOP, 300MIL Symbol A A1 D E H L θ Min. 0.093 0.004 0.447 0.291 0.394 0.016 0° Max. 0.104 0.012 0.463 0.299 0.419 0.050 8° Notes: 1. Controlling dimension is Inch. 2. JEDEC outline: MS-013 AB. 3. Dimensions “D” does not include mold flash, protrusions or gate burrs, mold flash, protrusions and gate burrs shall not exceed 0.15 mm (0.006 in) per side. 4. Dimensions “E” does not include inter-lead flash, or protrusions. Inter-leas flash and protrusions shall not exceed 0.25 mm (0.010 in) per side. V2.0 9 For:Natertech RX3310A 20 PINS, SSOP, 150MIL Symbol A A1 A2 b C D E E1 e L y θ │L-L1’│ L1 Min. 1.35 0.10 0.20 0.19 8.55 5.80 3.80 0.40 0° - Nom. 1.60 1.45 0.25 6.0 3.9 0.64 1.04 REF. Max. 1.75 0.25 0.30 0.25 8.75 6.20 4.00 1.27 0.10 8° 0.12 Notes: 1. Package body sizes exclude mold flash and gate burrs. 2. Dimension L is measured in gage plane. 3. Tolerance 0.10 mm unless otherwise specified. 4. Controlling dimensions are in millimeter. Converted inch dimensions are not necessarily exact. 5. Followed from JEDEC MO-137. V2.0 10 For:Natertech RX3310A IMPORTANT NOTICE Princeton Technology Corporation (PTC) reserves the right to make corrections, modifications, enhancements, improvements, and other changes to its products and to discontinue any product without notice at any time. PTC cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a PTC product. No circuit patent licenses are implied. Princeton Technology Corp. 2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan Tel: 886-2-66296288 Fax: 886-2-29174598 http://www.princeton.com.tw V2.0 11 For:Natertech RX3310A REVISION HISTORY Date 1/16/2009 Revision No. RX3310A V2.0 Reference No. Request no.: 090106 Approval no.: 090115 Modification 1. new format 2. modify Features 3. p2, replace Application circuit 4. p5, delete chip window 5. p7, Absolute Maximum Rating, Operating temperature range -40~+85 Î -20~+60 6. p7, Recommended Operating Conditions, Supply voltage range min. Î 2.4 p7, Recommended Operating Conditions, Operating temperature -40~+85 Î -20~+60 7. p7, Electrical Characteristics (VCC=3.0V), Disable pin input logic high min. Î 2.3V; Type Î 3.0V p7, Electrical Characteristics (VCC=5.0V), Disable pin input logic high min. Î 4.3V; Type Î 5.0V 8. p7, Receiver Characteristic condition: VCC=2.0V to 6.0V Î Vcc = 3.0V, Vss=0V 9. p8, Evaluation Board Layout, delete 18-pin SOP layout; replace 20-pin SSOP layout figures. V2.0 12 For:Natertech