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Linear Technology Electronic Components Datasheet

LTC6905-96 Datasheet

Fixed Frequency SOT-23 Oscillator

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LTC6905-96 pdf
FEATURES
No External Components to Set Frequency
Frequency Error ±0.5% Typical
Fast Start-Up Time: 100µs Typical
±20ppm/°C Temperature Stability
Output Enable Provided
www.DataSheetI4nUc.cluomdes Divide by 1, 2 or 4
Rise Time: 0.5ns, CL = 5pF
Timing Jitter: <0.8% Typical
50% ±2.5% Duty Cycle
IS = 8mA Typical (fOSC = 100MHz, CL = 5pF)
CMOS Output Drives 600Load
Single Supply 2.7V to 5.5V
Low Profile (1mm) ThinSOTTM Package
U
APPLICATIO S
Data Clocks for High Reliability Applications
High Vibration, High Acceleration Environments
Replacement for Fixed Crystal and Ceramic
Oscillators
, LTC and LT are registered trademarks of Linear Technology Corporation.
ThinSOT is a trademark of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
Protected by U.S. Patents, including 6614313, 6342817.
TYPICAL APPLICATIO
3V
0.1µF
Basic Connection
fOSC = 133MHz
1 V+
5
OUT
LTC6905-133
2
GND
3
OE
4
DIV
3V
÷1
÷2
OPEN
6905x TA01
÷4
LTC6905-XXX Series
Fixed Frequency
SOT-23 Oscillator
DESCRIPTIO
The LTC®6905-XXX series of parts are precision, fixed
frequency, silicon oscillators designed to minimize board
space while maximizing accuracy and ease of use.
Programmed at the factory to a fixed frequency, the
LTC6905-XXX series of parts need no external trim com-
ponents. An internal three-state divider allows for division
of the master clock by 1, 2 or 4, providing 3 frequencies
(for each device).
The LTC6905-XXX series operate with a single 2.7V to
5.5V power supply and provide a rail-to-rail, 50% duty
cycle, square wave output. The OE pin will disable the
output when brought low and synchronously enable the
output when brought high, avoiding pulse slivers.
The four products of the LTC6905-XXX family are:
LTC6905-133: fOSC = 133MHz, 66.7MHz, 33.3MHz
LTC6905-100: fOSC = 100MHz, 50MHz, 25MHz
LTC6905-96: fOSC = 96MHz, 48MHz, 24MHz
LTC6905-80: fOSC = 80MHz, 40MHz, 20MHz
The LTC6905-XXX series of parts are designed with a factory
trim option to modify the divider ratios from 1, 2, 4 to 8, 16,
32. A second trim option allows for additional master clock
frequencies. For the alternate divider ratios and unlisted
frequencies, contact LTC marketing.
Typical Distribution of Frequency Error, TA = 25°C
40
VS = 3V
30
20
10
0
–1 –0.5 0.0 0.5
1
% FREQUENCY ERROR 6905x TA02
6905xf
1


Linear Technology Electronic Components Datasheet

LTC6905-96 Datasheet

Fixed Frequency SOT-23 Oscillator

No Preview Available !

LTC6905-96 pdf
LTC6905-XXX Series
ABSOLUTE AXI U RATI GS
(Note 1)
Supply Voltage (V+) to GND ........................– 0.3V to 6V
DIV to GND .................................... – 0.3V to (V+ + 0.3V)
OE to GND ..................................... – 0.3V to (V+ + 0.3V)
Output Short-Circuit Duration (Note 6) ........... Indefinite
Operating Temperature Range (Note 8)
LTC6905C .......................................... – 40°C to 85°C
LTC6905I ............................................ – 40°C to 85°C
LTC6905H ........................................
www.DataShSeepte4cUi.fcioemd Temperature Range (Note 8)
40°C
to
125°C
LTC6905C ............................................... 0°C to 70°C
LTC6905I ............................................ – 40°C to 85°C
LTC6905H ........................................ – 40°C to 125°C
Storage Temperature Range ................. – 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C
UW U
PACKAGE/ORDER I FOR ATIO
V+ 1
GND 2
OE 3
TOP VIEW
5 OUT
4 DIV
S5 PACKAGE
5-LEAD PLASTIC SOT-23
TJMAX = 125°C, θJA = 150°C/W
ORDER PART NUMBER S5 PART MARKING*
LTC6905CS5-133
LTC6905IS5-133
LTC6905HS5-133
LTBPM
LTC6905CS5-100
LTC6905IS5-100
LTC6905HS5-100
LTBPK
LTC6905CS5-96
LTC6905IS5-96
LTC6905HS5-96
LTBPJ
LTC6905CS5-80
LTC6905IS5-80
LTC6905HS5-80
LTBPH
*The temperature grade is identified by a label on the shipping container.
ELECTRICAL CHARACTERISTICS The denotes the specifications which apply over the full specified
temperature range, otherwise specifications are at TA = 25°C or as noted. OE = DIV = V+, V+ = 2.7V to 3.6V, RL = 15k, CL = 5pF, unless
otherwise noted. All voltages are with respect to GND.
SYMBOL PARAMETER
CONDITIONS
MIN TYP MAX
UNITS
f Frequency Accuracy (Notes 2, 7)
LTC6905C-XXX
TA = 25°C, V+ = 3V
0°C < TA < 70°C
LTC6905I-XXX
25°C < TA < 85°C
– 40°C < TA < 85°C
LTC6905H-XXX
25°C < TA < 125°C
– 40°C < TA < 125°C
V+ = 5V
±0.5 ±1.0
%
±1.5 %
±1.8 %
±2.9 %
±2.3 %
±2.9 %
±1.5 %
f/T
f/V
Freq Drift Over Temp (Note 2)
Freq Drift Over Supply (Notes 2, 7)
V+ = 2.7V to 3.6V
±20
0.5
ppm/°C
%/V
Timing Jitter (Note 3)
0.8 %
Long-Term Stability of Output Frequency
300 ppm/kHr
Duty Cycle
V+ Operating Supply Range
47.5 50 52.5
2.7
5.5
%
V
6905xf
2


Part Number LTC6905-96
Description Fixed Frequency SOT-23 Oscillator
Maker Linear Technology
Total Page 8 Pages
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