PT2579 데이터 시트보기 (PDF) - Princeton Technology
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PT2579 Datasheet PDF : 21 Pages
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RDS Demodulator IC
Tel: 886-2-66296288
Fax:886-2-29174598
URL:http://www.princeton.com.tw
PT2579
Parameter
Symbol
Conditions
Min. Typ. Max.
Digital Demodulator and Outputs – QUAL, RDDA, T57, OSC2, RDCL
High level output
voltage
VOH
IQ=-20µA, DVDD=4.5V
4.4
-
-
Low level output
voltage
VOL
IQ=3.2mA, DVDD=5.5V
-
-
0.4
Nominal clock
frequency
fRDCL RDCL
- 1187.5 -
RDCL jitter
Nominal subcarrier
frequency
tRDCL
fT57
-
T57
(see Note 1)
-
-
18
-
57.0
-
OSC2
DVDD=4.5V, V14=0.4V
1.5
-
-
Output current
IO
OSC2
DVDD=4.5V, V14=4.1V
-1.6
QUAL, RDDA, T57, RDCL
DVDD=4.5V, V14=0.4V
5.9
-
-
-
-
QUAL, RDDA, T57, RDCL
DVDD=4.5V, V14=4.1V
-5.3
-
-
4.332 MHz Crystal Parameter
Crystal frequency
f0
-
-
4.332
-
Maximum permitted
tolerance
fmax
-
±50
-
f0 adjustment
tolerance
Ta=25℃
f0
Ta=-40 to +85℃
-
-
±20
-
-
±25
Load capacitance
CL
-
30
-
Resonance
resistance
Rxtal
-
-
60
8.664 MHz Crystal
Crystal frequency
f0
-
-
8.664
-
Maximum permitted
tolerance
fmax
-
±50
-
f0 adjustment
tolerance
Ta=25℃
f0
Ta=-40 to +85 ℃
-
-
±30
-
-
±30
Load capacitance
CL
-
30
-
Resonance
resistance
Rxtal
-
-
60
Note:
The signal T57 has a phase lead of 123° (±180°) relative to ARI carrier at output SCOUT.
Unit
V
V
Hz
µs
KHz
mA
mA
mA
mA
MHz
10-6
10-6
10-6
pF
Ω
MHz
10-6
10-6
10-6
pF
Ω
PT2579 V1.6
-8-
May, 2008
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