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LTC6902CMS 数据表(PDF) 3 Page - Linear Technology

部件名 LTC6902CMS
功能描述  Multiphase Oscillator with Spread Spectrum Frequency Modulation
PDF  16 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTC6902CMS 数据表(HTML) 3 Page - Linear Technology

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LTC6902
3
6902f
V+
Operating Supply Range
q
2.7
5.5
V
IS
Power Supply Current
RSET = 400k, RL = ∞, Pin 2 = V+ (N = 100), fOUT = 5kHz
V+ = 5V
q
0.35
0.55
mA
V+ = 2.7V
q
0.32
0.50
mA
RSET = 20k, RL = ∞, Pin 2 = 0V (N = 1), fOUT = 10MHz
V+ = 5V
q
2.35
3.50
mA
V+ = 2.7V
q
1.40
1.80
mA
RSET = 400k, RL = ∞, Pin 2 = V+ (N = 100), RMOD = 800k
V+ = 5V
q
0.45
0.63
mA
V+ = 2.7V
q
0.34
0.50
mA
RSET = 20k, RL = ∞, Pin 2 = 0V (N = 1), RMOD = 40k
V+ = 5V
q
2.50
3.60
mA
V+ = 2.7V
q
1.40
1.90
mA
VIH_DIV
High Level DIV Input Voltage
q
V+ – 0.4
V
VIL_DIV
Low Level DIV Input Voltage
q
0.4
V
IDIV
DIV Input Current (Note 6)
Pin 2 = V+, V+ = 5V
q
2
4
µA
Pin 2 = 0V, V+ = 5V
q
–4
–2
µA
VIH_PH
High Level PH Input Voltage
q
V+ – 0.4
V
VIL_PH
Low Level PH Input Voltage
q
0.4
V
IPH
PH Input Currrent (Note 6)
Pin 3 = V+, V+ = 5V
q
2
4
µA
Pin 3 = 0V, V+ = 5V
q
–4
–2
µA
VOH
High Level Output Voltage (Note 6)
V+ = 5V
IOH = – 1mA
q
4.75
4.90
V
(OUT1, OUT2, OUT3, OUT4)
IOH = – 4mA
q
4.40
4.70
V
V+ = 2.7V
IOH = – 1mA
q
2.35
2.6
V
IOH = – 4mA
q
1.85
2.2
V
VOL
Low Level Output Voltage (Note 6)
V+ = 5V
IOL = 1mA
q
0.05
0.15
V
(OUT1, OUT2, OUT3, OUT4)
IOL = 4mA
q
0.20
0.40
V
V+ = 2.7V
IOL = 1mA
q
0.1
0.3
V
IOL = 4mA
q
0.4
0.7
V
tr
Output Rise Time (Note 7)
V+ = 5V
Pin 2 = V+ or Open (N = 100 or N = 10)
14
ns
(OUT1, OUT2, OUT3, OUT4)
Pin 2 = 0V (N = 1)
7
ns
V+ = 2.7V
Pin 2 = V+ or Open (N = 100 or N = 10)
19
ns
Pin 2 = 0V (N = 1)
11
ns
tf
Output Fall Time (Note 7)
V+ = 5V
Pin 2 = V+ or Open (N = 100 or N = 10)
13
ns
(OUT1, OUT2, OUT3, OUT4)
Pin 2 = 0V (N = 1)
6
ns
V+ = 2.7V
Pin 2 = V+ or Open (N = 100 or N = 10)
19
ns
Pin 2 = 0V (N = 1)
10
ns
Spread Spectrum Frequency
V+ = 5V, N = 10, RSET = 20k, RMOD = 10k
q
35
40
45.0
%
Modulation Spreading Percentage
V+ = 5V, N = 10, RSET = 20k, RMOD = 40k
q
7.5
10
12.5
%
(Downspread from Maximum
V+ = 2.7V, N = 10, RSET = 20k, RMOD = 10k
q
35
40
45.0
%
Frequency)
V+ = 2.7V, N = 10, RSET = 20k, RMOD = 40k
q
7.5
10
12.5
%
Percent = 100 • (fMAX – fMIN)/fMAX
(Note 8)
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
The q denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. V+ = 2.7V to 5.5V, RL= 5k, CL = 5pF, Pin 3 (PH) = 0V (2-phase, M = 1)
unless otherwise specified. Pin 9 (MOD) is at 0V unless otherwise specified. RSET is defined as a resistor connected from the SET pin
to the V+ pin. RMOD is defined as a resistor connected from the MOD pin to the V+ pin.
ELECTRICAL CHARACTERISTICS



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