DS1089L Просмотр технического описания (PDF) - Maxim Integrated
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DS1089L Datasheet PDF : 13 Pages
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DS1089L
3.3V Center Spread-Spectrum EconOscillator™
Typical Operating Characteristics (continued)
(VCC = 3.3V, TA = +25°C, unless otherwise noted.)
DUTY CYCLE
vs. SUPPLY VOLTAGE
58
TA = +25ºC
56
66MHz
50MHz 33MHz
54
DUTY CYCLE vs. TEMPERATURE
58
VCC = 3.3V
56
66MHz
54
50MHz
52
50
130kHz
48
2.7
3.0
3.3
3.6
SUPPLY VOLTAGE (V)
52
33MHz
50
130kHz
48
-40 -15 10
35
60
85
TEMPERATURE (ºC)
SPECTRUM COMPARISON
(120kHz BW, SAMPLE DETECT)
0
1%
-10
2%
NO SPREAD
-20
-30
-40
8%
-50
4%
-60
-70
-80
fMOSC = 50MHz,
DITHER RATE = fMOSC / 4096
-90
44 46 48 50 52 54 56
FREQUENCY (MHz)
Pin Description
PIN
NAME
1
OUT Oscillator Output
FUNCTION
2
SPRD Dither Enable. When the pin is high, the dither is enabled. When the pin is low, the dither is disabled.
3
VCC Power Supply
4
GND Ground
5
OE
Output Enable. When the pin is high, the output buffer is enabled. When the pin is low, the output is disabled
but the internal master oscillator is still on.
6
PDN
Power-Down. When the pin is high, the master oscillator is enabled. When the pin is low, the master oscillator
and the output buffer are disabled (power-down mode).
7
SDA I2C Serial Data. This pin is for serial data transfer to and from the device.
8
SCL I2C Serial Clock. This pin is used to clock data into and out of the device.
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