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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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