Productsandspecificationsaresubjecttochangewithoutnotice.PleaseaskforthelatestProductStandardstoguaranteethesatisfactionofyourproductrequirements.
Overview
Features
Applications
SystemBlockDiagram
VCO/PLL+IFSingle-ChipICAN18420AforETCVehicle
OnboardEquipment
AN18420A is a single-chip IC that incorporates a
VCO/PLL b lock and an IF bl ock to si gnificantl y reduce
the size and the number of parts used in the wireless
block of onboard 5.8GHz electronic to ll collection (ETC)
systems. This makes a sizable contribu tion to the design
of more compact onboard equipment for ETC vehicles, a
product that is expected to grow in popularity.
zSubstant ial space-s aver for the wireless block of ET C
vehicle onboard equipment. Compactly packaged IC
combines with Panasonic MMIC (GN7003S) for the
wireless block of ETC vehicle on board equipment.
zFull incorporation of VCO circuitry including oscillation
circuit. Use of SiGe-Bi CMOS process allows full
incorporation of 2.9 GH z VCO.
zSingle-chip configuration includes both VCO/PLL block
and IF block.
zETC vehicle on board equipment
Contributing to the design of smaller onboard equipm ent for ETC vehicles.
New
Newpublication,effectivefrom7Jul.2003M00608AE
1Kotari-yakemachi,Nagaokakyo,Kyoto617-8520,JapanTel.+81-75-951-8151http://panasonic.co.jp/semicon
3-C 0.50
R0.30
(1.10)
(1.10)
0.80 max
(6.00)
(6.00)
SEATING PLANE
111
12
22
23
33
34
44
44
34
33 23
22
12
11
1
0.10
0.08 M
0.40
5.00
±0.10
0.16
±0.06
0.60
±0.10
6.20
±0.10
5.00
±0.10
0.20
±0.10
6.20
±0.10
(0.48)
(0.15)
(0.48)
(0.63)
(0.63)
Unit : mm
QFN044-P-0606A
GCA AGC
40MHz
IF Block
RSSI
ASK
Demodulator
RSSI
Rx-Data
Data
Tx-Data
AN18420A
VCO/PLL Block
VCO
PLL
Prescaler
GN7003S
Double edge
evaluation
BlockDiagram
PinDescription
VCC
GND
RSSIout
GND
VCC
AGC
ASKcont
ASKout
GND
CLOCK
DATA
22
21
20
19
18
17
16
15
14
13
12
PIN
EN
VCC
GND
LD
VCC
REF-in
GND
LPF2
LPF1
GND
GND
GND43NC3210
GND42GND319
GND41GND308
VCC
40VCC
297
NC39IF-in2286
2XOUT38IF-in1275
VCC
37GCAcont264
GND36VREF253
NC35GND242
COMP_REF
34GND231
PINPINPIN
VCC
44
COMP_OUT
3311
3 541 28 96 7
13
10 11
12
15
14
17
16
19
18
21
20
23
22
43
44
41
42
39
40
37
38
35
36
34
33 32 31 30 29 28 27 26 25 24
Vcc
Vcc
Vcc
Vcc
100pF
50Ω
50kΩ
1000pF
1000pF
110kΩ
50kΩ
SAW
IF-in
Comparator
Output
50kΩ
1nH
Shift register
+Latch
Comparator
L Driver
Amp.
Double edge
evaluation circuit
L Cascade
Amp.
VCO
(2.9GHz)
PSC
Counter
(10bit+5bit)
PD/CP
(1.25MHz) REF-in REF
Counter
ASK
Demodulator
AGC
RSSI
GCA
2200pF
1000pF
Vcc
Vcc
Vcc EN
Input
Vcc
1000pF
30MHz
0.01µF
2200pF
750Ω
750kΩ
300Ω
0.068µF
4 to 5GHz Output
DATA Input
CLOCK Input
ASK
ASK
LD
Low:0V
High:Vcc
Output
AbsoluteMaximumRatings
2W0.1764Pd
Power dissipation
mA95ICC
Supply current
1
°C−55 to 150
Tstg
Storage temperature
V2.95VCC
Supply vol tage
1
°C−40 to 100
Topr
Operating ambient temperature
Note
UnitRatingSymbolParameter
OperatingSupplyVoltageRange
2.6 V to 2.9 VVCC
Operating Supply Voltage Range
Note1) Except for the operation am bient temperature and storage temperature, all ratings are for Ta =25 °C.
Note2）Ta=100 °C, Packa g e only.
ElectricalCharacteristics(unlessotherwisespecified,ambienttemperatureis25°C±2°C,VCC=2.8V)
V0.350.150.1
gap of RSSI voltage when
variable amplifier gain is high or
low
GahVariable am p. ga in
width
mA876850
Normal operation
/non signal
ICC
Supply current
V1.921.721.52
Vin=-40dBm,40MHzCHRS2
Channel sele ct
RSSI output2
V1.81.61.4
Vin=-60dBm,40MHzCHRS1
Channel sele ct
RSSI output1
V
2.7
Vin=-50dBm to -20dBm,
40MHz
VASKH
ASK Demodulator
output high level
V0.4
Vin=-50dBm to -20dBm,
40MHz
VASKL
ASK Demodulator
output low level
V2.22.01.8
Vin=-17dBm,40MHzCHRS3
Channel sele ct
RSSI output3
dBc-82
fout=5.845GHz,∆200kHz
CN1C/N1
dBm+2-2.5-7
fout=5.845GHz、Load:50Ω
2VCODouble edge
evaluation output
level
dB-11-15
Vin=-40dBm,40MHz
TH2C2nd. Harmonic
distortion
dBc-97
fout=5.845GHz,∆1MHz
CN2C/N2
Typ.Min. UnitMax.ConditionSymbolParameter
ReferenceDataforDesigning
PackagePowerDissipation
dBc-20
2.9GHz
SP1Spurious level 1
µs
1000
5815MHz 5845MHz
LUTLock up time
dBc-10
11.6GHz
SP3Spurious level 3
dBc-10
8.7GHz
SP2Spurious level 2
dBc-37
1.25MHz offset
VRFRReference leak
V
Vcc-
0.4
Lock
LDHLD voltage H
V0.4
An lock
LDLLD voltage L
VVcc
0.7 ×
Vcc
DATA,CLOCK,EN
CN1High level input
voltage
kΩ
4
2VCOAmp. Input resistor
dBm+100-10
30MHz
REFRTCXO input level
V
0.3 ×
Vcc
0
DATA,CLOCK,EN
CN2Low level in put
voltage
Typ.Min. UnitMax.ConditionSymbolParameter