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| New Contributing to the design of smaller onboard equipment for ETC vehicles. VCO/PLL+IFSingle-ChipICAN18420AforETCVehicle OnboardEquipment Overview AN18420A is a single-chip IC that incorporates a VCO/PLL block and an IF block to significantly reduce the size and the number of parts used in the wireless block of onboard 5.8GHz electronic toll collection (ETC) systems. This makes a sizable contribution to the design of more compact onboard equipment for ETC vehicles, a product that is expected to grow in popularity. 33 34 (0.63) 23 22 6.200.10 (6.00) 44 R0.30 1 (0.63) Features Substantial space-saver for the wireless block of ETC vehicle onboard equipment. Compactly packaged IC combines with Panasonic MMIC (GN7003S) for the wireless block of ETC vehicle onboard equipment. Full incorporation of VCO circuitry including oscillation circuit. Use of SiGe-Bi CMOS process allows full incorporation of 2.9GHz VCO. Single-chip configuration includes both VCO/PLL block and IF block. 0.600.10 0.10 5.000.10 (1.10) 1 11 12 SEATING PLANE 0.200.10 (0 .1 5) 5.000.10 (1.10) 44 34 33 0.40 23 22 (0.48) 0.160.06 (0.48) 0.08 M QFN044-P-0606A Applications ETC vehicle onboard equipment SystemBlockDiagram GN7003S AN18420A ASK Demodulator VCO/PLL Block Double edge evaluation VCO PLL Prescaler GCA AGC RSSI 40MHz IF Block RSSI Rx-Data 0.80 max 11 3C 6.200.10 (6.00) 12 0. 50 Unit : mm Data Tx-Data Productsandspecificationsaresubjecttochangewithoutnotice.PleaseaskforthelatestProductStandardstoguaranteethesatisfactionofyourproductrequirements. 1Kotari-yakemachi,Nagaokakyo,Kyoto617-8520,JapanTel.+81-75-951-8151http://panasonic.co.jp/semicon M00608AE Newpublication,effectivefrom7Jul.2003 BlockDiagram IF-in SAW 50k 1000pF 50 33 50k 32 31 30 29 28 27 26 25 110k Comparator Output 1000pF Vcc 50k 24 23 22 Vcc 34 35 36 Comparator GCA 21 RSSI Vcc 37 38 L Driver Amp. 19 18 2200pF Vcc 1nH 4 to 5GHz Output 39 40 41 42 43 L Cascade Amp. PSC Counter (10bit+5bit) 17 Double edge evaluation circuit AGC 1000pF ASK Vcc 16 ASK Demodulator 15 14 13 ASK VCO (2.9GHz) CLOCK Input DATA Input Vcc 44 1 2 2200pF PD/CP (1.25MHz) REF-in REF Counter Shift register +Latch 12 3 750 4 5 6 1000pF 7 8 9 10 11 750k 0.01F Vcc 30MHz LD Low:0V High:Vcc Output Vcc EN Input 300 0.068F PinDescription PIN 1 2 3 4 5 6 7 8 9 10 11 GND GND LPF1 LPF2 GND REF-in VCC LD GND VCC EN PIN 12 13 14 15 16 17 18 19 20 21 22 DATA CLOCK GND ASKout ASKcont AGC VCC GND RSSIout GND VCC PIN 23 24 25 26 27 28 29 30 31 32 33 GND GND VREF GCAcont IF-in1 IF-in2 VCC GND GND NC COMP_OUT PIN 34 35 36 37 38 39 40 41 42 43 44 COMP_REF NC GND VCC 2XOUT NC VCC GND GND GND VCC 100pF 20 AbsoluteMaximumRatings Parameter Storage temperature Operating ambient temperature Supply voltage Supply current Power dissipation Symbol Rating Unit Note 1 1 Tstg Topr VCC ICC Pd -55 to 150 -40 to 100 2.95 95 0.1764 C C V mA W 2 Note1) Except for the operation ambient temperature and storage temperature, all ratings are for Ta=25 C. Note2 Ta=100 C, Package only. OperatingSupplyVoltageRange Operating Supply Voltage Range VCC 2.6 V to 2.9 V ElectricalCharacteristics(unlessotherwisespecified,ambienttemperatureis25C 2C,VCC=2.8V) Parameter Supply current Variable amp. gain width Channel select RSSI output1 Channel select RSSI output2 Channel select RSSI output3 ASK Demodulator output low level ASK Demodulator output high level 2nd. Harmonic distortion Double edge evaluation output level C/N1 C/N2 Symbol ICC Gah CHRS1 Condition Normal operation /non signal gap of RSSI voltage when variable amplifier gain is high or low Min. 50 0.1 1.4 1.52 1.8 2.7 Typ. 68 0.15 1.6 1.72 2.0 -15 Max. 87 0.35 1.8 1.92 2.2 0.4 -11 +2 Unit mA V V V V V V dB dBm Vin=-60dBm,40MHz CHRS2 Vin=-40dBm,40MHz CHRS3 Vin=-17dBm,40MHz VASKL Vin=-50dBm to -20dBm, 40MHz Vin=-50dBm to -20dBm, 40MHz Vin=-40dBm,40MHz fout=5.845GHz Load:50 VASKH TH2C 2VCO -7 -2.5 CN1 CN2 fout=5.845GHz,200kHz fout=5.845GHz,1MHz -82 -97 dBc dBc ReferenceDataforDesigning Parameter Lock up time Spurious level 1 Spurious level 2 Spurious level 3 LD voltage L LD voltage H Reference leak TCXO input level Amp. Input resistor High level input voltage Low level input voltage Symbol LUT SP1 SP2 SP3 LDL LDH VRFR REFR 2VCO CN1 CN2 Condition 5815MHz 2.9GHz 8.7GHz 11.6GHz An lock Lock 1.25MHz offset 30MHz 5845MHz Min. Vcc0.4 Typ. 0 4 Max. 1000 -20 -10 -10 0.4 -37 +10 Vcc 0.3 x Vcc Unit s dBc dBc dBc V V dBc dBm k V V -10 DATA,CLOCK,EN DATA,CLOCK,EN 0.7 x Vcc 0 PackagePowerDissipation |
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