LTC6905 Linear Technology, LTC6905 Datasheet - Page 3

• Manufacturer Part Number: LTC6905
• Description: 17MHz to 170MHz Resistor Set SOT-23 Oscillator
• Manufacturer: Linear Technology

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ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
otherwise noted. All voltages are with respect to GND.
SYMBOL
V
I
V
V
t
V
Note 1: Absolute Maximum Ratings are those values beyond which the life
of the device may be impaired.
Note 2: Frequency accuracy is defined as the deviation from the f
equation. Accuracy is tested with DIV = V
are guaranteed by design.
Note 3: Jitter is the ratio of the peak-to-peak distribution of the period to
the mean of the period. This specification is based on characterization and
is not 100% tested.
Note 4: To conform with the Logic IC Standard convention, current out of
a pin is arbitrarily given as a negative value.
Note 5: Output rise and fall times are measured between the 10% and
90% power supply levels.
TYPICAL PERFOR A CE CHARACTERISTICS
DIV
r
IL
OH
OL
, t
SET
f
18
16
14
12
10
8
6
4
2
0
0
Supply Current vs Frequency
÷4
÷4
PARAMETER
Low Level DIV Input Voltage
DIV Input Current (Note 4)
High Level Output Voltage (Note 4)
Low Level Output Voltage (Note 4)
OUT Rise/Fall Time (Note 5)
Voltage at R
5.5V
2.7V
50
÷2
÷2
FREQUENCY (MHz)
SET
100
÷1
Pin
÷1
150
W
6905 G01
+
, N = 1 and other divide ratios
U
200
–0.80
–0.20
–0.40
–0.60
0.60
0.40
0.20
CONDITIONS
Pin 4 = V
Pin 4 = 0V
V
V
V
V
V
V
+
+
+
+
+
+
0
= 5.5V
= 2.7V
= 5.5V
= 2.7V
= 5.5V
= 2.7V
10
A
Frequency Error vs R
= 25°C or as noted. V
OSC
12
+
The
14
●
I
I
I
I
I
I
I
I
denotes the specifications which apply over the full specified
OH
OH
OH
OH
OL
OL
OL
OL
16
R
SET
= 1mA
= 4mA
= 1mA
= 4mA
= – 1mA
= – 4mA
= – 1mA
= – 4mA
Note 6: A heat sink may be required to keep the junction temperature
below the absolute maximum when the output is shorted indefinitely.
Note 7: The LTC6905C is guaranteed functional over the operating
temperature range.
Note 8: The LTC6905 is guaranteed to meet specified performance from
0°C to 70°C. The LTC6905C-XXX is designed, characterized and expected
to meet specified performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LTC6905I-XXX is guaranteed to meet
specified performance from –40°C to 85°C.
Note 9: The LTC6905 is optimized for the performance with a 3V power
supply voltage. Please consult LTC Marketing for parts optimized for 5V
operation.
18
(kΩ)
SET
20
+
= 2.7V to 5.5V, R
22
6905 G02
V
V
24
+
+
= 5.5V
= 5.5V
–0.20
–0.40
L
1.40
1.00
0.80
0.60
0.40
1.20
0.20
= 15k, C
●
●
●
●
●
●
●
●
●
●
●
●
●
0
2.5
Frequency Error vs Supply Voltage
5.25
5.20
4.27
1.61
– 40
2.5
2.4
MIN
L
3
= 5pF, Pin 4 = V
SUPPLY VOLTAGE (V)
5.45
5.30
0.05
3.5
– 11
2.6
2.4
0.2
0.1
0.4
0.5
4.5
1.7
TYP
15
LTC6905
4
0.25
4.73
1.79
0.2
0.3
0.3
0.5
MAX
40
+
4.5
unless
5
6905 G03
UNITS
6905fa
3
5.5
µA
µA
ns
V
V
V
V
V
V
V
V
V
V
V