PT2579 데이터 시트보기 (PDF) - Princeton Technology
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PT2579 Datasheet PDF : 21 Pages
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RDS Demodulator IC
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, AVDD=DVDD=5V, Ta=25℃)
Parameter
Symbol
Conditions
Analog supply
voltage
AVDD
AVDD
Digital supply
voltage
DVDD
DVDD
Total supply current
Itot
I5 + I12
Reference voltage
Vref
VREF, AVDD=5V
MPX Input (Signal before the Capacitor on Pin 4)
RDS amplitude
(RMS value)
ViMPX(rms)
f=+1.2KHz RDS
f=+3.5KHz ARI (see Note)
Maximum input
signal capability
(peak to peak value)
ViMPX(p-p)
f=57±2KHz
f<50KHz
f<15KHz
f>70KHz
Input impedance
R4-6 f=0 to 100KHz
Signal gain
G8-4 f=57KHz
57KHz Band-Pass Filter
Center frequency
fc
Ta=-40 to +85℃
-3dB bandwidth
B
-
f=±7KHz
Stop band gain
G
f<45KHz
f<20KHz
f>70KHz
Output resistance
(pin 8)
Ro (8)
f=57KHz
Comparator Input (Pin 7)
Minimum input level
(RMS value)
Vi(rms)
f=57KHz
Input resistance
Ri
-
Oscillator Input (Pin 13)
High level input
voltage
VIH
DVDD=5.0V
Low level input
Voltage
VIL
DVDD=5.0V
Input current
II
DVDD=5.5V
Tel: 886-2-66296288
Fax:886-2-29174598
URL:http://www.princeton.com.tw
PT2579
Min.
3.3
3.3
-
-
Typ. Max. Unit
5.0 5.5 V
5.0 5.5 V
6
- mA
2.5
-
V
1
-
- mV
200
-
- mV
1.4
-
-
V
2.8
-
-
V
3.5
-
-
V
40
-
- KΩ
17
20
23 dB
56.5 57.0 57.5 KHz
2.5 3.0 3.5 KHz
31
-
- dB
40
-
- dB
50
-
- dB
40
-
- dB
-
26
-
Ω
-
1
10 mV
70 110 150 KΩ
4.0
-
-
V
-
-
1.0 V
-
-
±1 µA
PT2579 V1.6
-7-
May, 2008
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