DS1090U-4 データシートの表示（PDF） - Maxim Integrated
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DS1090U-4 Datasheet PDF : 9 Pages
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DS1090
Low-Frequency, Spread-Spectrum EconOscillator
Pin Description
PIN NAME
FUNCTION
1
OUT Oscillator Output
2
RSET Frequency Control Resistor Input
3
VCC Positive-Supply Terminal
4
GND Ground
5
J0 Dither Amplitude (Percentage) Inputs
6
J1 (see Table 2)
7
JC0
Dither Rate Divisor Inputs (see Table 1)
8
JC1
Block Diagram
RSET
VCC
GND
VOLTAGE-
BIAS CIRCUIT
+
∑
+
VCC
DS1090
MASTER
OSCILLATOR
(VCO)
4MHz–8MHz
fMOSC
FACTORY
PROGRAMMED
PRESCALER
fOSC
fOUT
BUFFER
OUT
( 1, 2, 4, 8, 16, OR 32)
+
-
DITHER
AMPLITUDE
(0, 2, 4, OR 8%)
DITHER GENERATOR
fMOD
TRIANGLE
GENERATOR
( 128)
DITHER RATE
( 4, 8, 16, OR 32)
J0
J1
JC0
JC1
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