ltc6902cms-trpbf Linear Technology Corporation, ltc6902cms-trpbf Datasheet - Page 3

• Manufacturer Part Number: ltc6902cms-trpbf
• Description: Multiphase Oscillator With Spread Spectrum Frequency Modulation
• Manufacturer: Linear Technology Corporation

ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifications are at T
unless otherwise specified. Pin 9 (MOD) is at 0V unless otherwise specified. R
to the V
SYMBOL
V
I
V
V
I
V
V
I
V
V
t
t
S
DIV
PH
r
f
IH_DIV
IL_DIV
IH_PH
IL_PH
OH
OL
+
+
pin. R
PARAMETER
Operating Supply Range
Power Supply Current
High Level DIV Input Voltage
Low Level DIV Input Voltage
DIV Input Current (Note 6)
High Level PH Input Voltage
Low Level PH Input Voltage
PH Input Currrent (Note 6)
High Level Output Voltage (Note 6)
(OUT1, OUT2, OUT3, OUT4)
Low Level Output Voltage (Note 6)
(OUT1, OUT2, OUT3, OUT4)
Output Rise Time (Note 7)
(OUT1, OUT2, OUT3, OUT4)
Output Fall Time (Note 7)
(OUT1, OUT2, OUT3, OUT4)
Spread Spectrum Frequency
Modulation Spreading Percentage
(Downspread from Maximum
Frequency)
Percent = 100 • (f
(Note 8)
MOD
is defined as a resistor connected from the MOD pin to the V
MAX
– f
MIN
)/f
MAX
R
R
R
R
Pin 2 = V
Pin 2 = 0V, V
Pin 3 = V
Pin 3 = 0V, V
V
V
V
V
V
V
V
V
V
V
V
V
CONDITIONS
V
V
V
V
V
V
V
V
SET
SET
SET
SET
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
= 2.7V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V, N = 10, R
= 5V, N = 10, R
= 2.7V, N = 10, R
= 2.7V, N = 10, R
= 5V
= 5V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 400k, R
= 400k, R
= 20k, R
= 20k, R
+
A
+
, V
, V
= 25 C. V
I
I
I
I
I
I
I
I
Pin 2 = V
Pin 2 = 0V (N = 1)
Pin 2 = V
Pin 2 = 0V (N = 1)
Pin 2 = V
Pin 2 = 0V (N = 1)
Pin 2 = V
Pin 2 = 0V (N = 1)
+
+
+
+
OH
OH
OH
OH
OL
OL
OL
OL
L
L
= 5V
= 5V
L
= 5V
= 5V
L
= , Pin 2 = 0V (N = 1), f
= , Pin 2 = 0V (N = 1), R
The
= , Pin 2 = V
= 1mA
= 4mA
= 1mA
= 4mA
= , Pin 2 = V
= – 1mA
= – 4mA
= – 1mA
= – 4mA
SET
SET
SET
SET
+
+
+
+
+
= 20k, R
= 20k, R
or Open (N = 100 or N = 10)
or Open (N = 100 or N = 10)
or Open (N = 100 or N = 10)
or Open (N = 100 or N = 10)
= 2.7V to 5.5V, R
denotes the specifications which apply over the full operating
= 20k, R
= 20k, R
+
MOD
MOD
+
(N = 100), R
(N = 100), f
MOD
MOD
= 10k
= 40k
= 10k
= 40k
SET
OUT
+
MOD
pin.
L
is defined as a resistor connected from the SET pin
OUT
= 10MHz
MOD
= 5k, C
= 40k
= 5kHz
= 800k
L
= 5pF, Pin 3 (PH) = 0V (2-phase, M = 1)
V
V
+
+
4.75
4.40
2.35
1.85
MIN
2.7
7.5
7.5
– 4
–4
35
35
– 0.4
– 0.4
0.35
0.32
2.35
1.40
2.50
1.40
4.90
4.70
0.05
0.20
TYP
0.45
0.34
2.6
2.2
0.1
0.4
– 2
–2
14
19
11
13
19
10
40
10
40
10
7
6
2
2
LTC6902
MAX
0.55
0.50
3.50
1.80
0.63
0.50
3.60
1.90
0.15
0.40
45.0
12.5
45.0
12.5
5.5
0.4
0.4
0.3
0.7
4
4
UNITS
3
6902f
mA
mA
mA
mA
mA
mA
mA
mA
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
V
V
V
A
A
V
V
A
A
V
V
V
V
V
V
V
V