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UPC2539 Datasheet(PDF) 4 Page - NEC

Part No. UPC2539
Description  RDS DATA DEMODULATOR IC
Download  8 Pages
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPC2539 Datasheet(HTML) 4 Page - NEC

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µPC2539
4
ELECTRICAL SPECIFICATIONS (PRELIMINARY)
ABSOLUTE MAXIMUM RATINGS (Unless otherwise specified, TA=25
°C)
Parameter
Symbol
Conditions
Ratings
Unit
Supply voltage
VCC
VCC pin, VDD pin
7.0
V
Power dissipation
Pd
TA=85
°C
280
mW
Operating ambient temperature
Topt
–30 to +85
°C
Storage temperature
Tstg
–40 to +125
°C
Caution
Exposure to Absolute Macimum Rating for extended periods may affect device reliability;
exceeding the ratings could cause permanent damage. The parameters apply independently.
RECOMMENDED OPERATING CONDITIONS
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Sypply voltage
VCC
VCC pin, VDD pin
4.5
5.0
5.5
V
FM Demoulation Signal
Vin
MONO,
∆f=75kHz
280
mVrms
Input Voltage
ELECTRICAL CHARACTERISTICS (Unliss otherwise specified, TA=25
°C, VCC=VDD=5.0V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Circuit current
ICC
No Signal
10
15
20
mA
SK Detection Sensitivity(ON)
Ssk1
SK ONLY
2.5
3.5
4.5
mVrms
SK Detection Sensitivity(OFF)
Ssk2
SK ONLY
1.0
2.0
3.0
mVrms
RDS Detection Sensitivity
Srds
RDS ONLY, DATA(101010..)
0.1
0.2
0.6
mVrms
SK Lock Up Time
Tsk
SK ONLY, Vsk=10mVrms
12
16
20
bit
RDS Lock Up Time 1
Trds1
RDS ONLY
10
40
80
bit
RDS Lock Up Time 2
Trds2
RDS+SK, Vsk=10mVrms
20
50
100
bit
Output Voltage(H Level)
VOH
Io=
±100
µA, Pin 4, 5, 6
4.90
4.95
V
Io=
±5
µA, Pin 7
4.90
4.95
V
Output Voltage(L Level)
VOL
Io=
±100
µA, Pin 4, 5, 6
0.05
0.10
V
Io=
±5
µA, Pin 7
0.05
0.10
V
Band-Pass-Filter Characteristics
Peak Gain
Av
fin=57kHz, Vin=10mVrms
22
25
28
dB
Pass Band Width
BW
Av-3dB
2.8
3.3
3.8
kHz
Attenuation 1
ATT1
fin=53kHz, Vin=10mVrms
23
27
31
dB
Attenuation 2
ATT2
fin=38kHz, Vin=10mVrms
75
85
dB
Maximum Input Level
Vinmax
fin=57kHz
120
150
mVp-p
Signal to Noise Ratio
S/N
fin=57kHz, Vin=3mVrms
25
30
dB
Input Impedance
Zin
26
35
44
k
Output Impedance
Zout
300
660


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