Typical operating characteristics (continued), Pin description – Rainbow Electronics DS1091L User Manual
Page 4
DS1091L
Automotive Temperature Range
Spread-Spectrum Econoscillator
4
_____________________________________________________________________
Typical Operating Characteristics (continued)
(T
A
= +25°C, V
CC
= 3.3V, unless otherwise noted.)
Pin Description
PIN
µMAX8
NAME
FUNCTION
1
OUT
Spread-Spectrum Clock Output
2
V
CC
Supply Voltage
3
GND
Ground
4
SEL1
5
SEL0
Spread Spectrum Dither Magnitude Select Inputs. Selects dither magnitude (see Table 1).
6, 7
N.C.
No Connection
8
DR
Spread-Spectrum Dither Rate Selector. Selects dither rate (see Table 2).
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
OUTPUT FALL TIME
DS1091L toc07
TIME (ns)
OUTPUT (V)
FALL TIME
= 1.13ns
TYPICAL
AT 12pF LOAD
-35
-30
-25
-20
-15
-10
-5
0
5
31.9
32.9
32.4
33.4
33.9
34.4
34.9
SPECTRUM ATTENUATION vs. FREQUENCY
AT DIFFERENT DITHER AMPLITUDES
DS1091L toc08
FREQUENCY (MHz)
ATTENUATION (dB)
0%
±1%
±2%
±4%
8dB
11dB
14dB
f
OUT
= 33.3MHz
RBW = 120kHz
CENTER DITHER
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
OUTPUT RISE TIME
DS1091L toc06
TIME (ns)
OUTPUT (V)
RISE TIME
= 1.02ns
TYPICAL
AT 12pF LOAD