參數(shù)資料
型號(hào)： LTC6902
廠商： Linear Technology Corporation
英文描述： Multiphase Oscillator with Spread Spectrum Frequency Modulation
中文描述： 多相擴(kuò)頻振蕩器頻率調(diào)制
文件頁數(shù)： 3/16頁
文件大?。?/td> 212K
代理商： LTC6902
LTC6902
3
6902f
V
+
I
S
Operating Supply Range
Power Supply Current
G
2.7
5.5
V
R
SET
= 400k, R
L
=
∞
, Pin 2 = V
+
(N = 100), f
OUT
= 5kHz
V
+
= 5V
V
+
= 2.7V
R
SET
= 20k, R
L
=
∞
, Pin 2 = 0V (N = 1), f
OUT
= 10MHz
V
+
= 5V
V
+
= 2.7V
R
SET
= 400k, R
L
=
∞
, Pin 2 = V
+
(N = 100), R
MOD
= 800k
V
+
= 5V
V
+
= 2.7V
R
SET
= 20k, R
L
=
∞
, Pin 2 = 0V (N = 1), R
MOD
= 40k
V
+
= 5V
V
+
= 2.7V
G
G
0.35
0.32
0.55
0.50
mA
mA
G
G
2.35
1.40
3.50
1.80
mA
mA
G
G
0.45
0.34
0.63
0.50
mA
mA
G
G
G
V
+
– 0.4
2.50
1.40
3.60
1.90
mA
mA
V
IH_DIV
V
IL_DIV
I
DIV
High Level DIV Input Voltage
Low Level DIV Input Voltage
DIV Input Current (Note 6)
V
V
G
0.4
4
Pin 2 = V
+
, V
+
= 5V
Pin 2 = 0V, V
+
= 5V
G
G
G
V
+
– 0.4
2
–2
μ
A
μ
A
V
V
μ
A
μ
A
V
V
V
V
V
V
V
V
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
–4
V
IH_PH
V
IL_PH
I
PH
High Level PH Input Voltage
Low Level PH Input Voltage
PH Input Currrent (Note 6)
G
0.4
4
Pin 3 = V
+
, V
+
= 5V
Pin 3 = 0V, V
+
= 5V
V
+
= 5V
G
G
2
–2
4.90
4.70
2.6
2.2
0.05
0.20
0.1
0.4
14
7
19
11
13
6
19
10
40
10
40
10
–4
4.75
4.40
2.35
1.85
V
OH
High Level Output Voltage (Note 6)
(OUT1, OUT2, OUT3, OUT4)
I
OH
= –1mA
I
OH
= –4mA
I
OH
= –1mA
I
OH
= –4mA
I
OL
= 1mA
I
OL
= 4mA
I
OL
= 1mA
I
OL
= 4mA
Pin 2 = V
+
or Open (N = 100 or N = 10)
Pin 2 = 0V (N = 1)
Pin 2 = V
+
or Open (N = 100 or N = 10)
Pin 2 = 0V (N = 1)
Pin 2 = V
+
or Open (N = 100 or N = 10)
Pin 2 = 0V (N = 1)
Pin 2 = V
+
or Open (N = 100 or N = 10)
Pin 2 = 0V (N = 1)
V
+
= 5V, N = 10, R
SET
= 20k, R
MOD
= 10k
V
+
= 5V, N = 10, R
SET
= 20k, R
MOD
= 40k
V
+
= 2.7V, N = 10, R
SET
= 20k, R
MOD
= 10k
V
+
= 2.7V, N = 10, R
SET
= 20k, R
MOD
= 40k
G
G
V
+
= 2.7V
G
G
V
OL
Low Level Output Voltage (Note 6)
(OUT1, OUT2, OUT3, OUT4)
V
+
= 5V
G
G
0.15
0.40
0.3
0.7
V
+
= 2.7V
G
G
t
r
Output Rise Time (Note 7)
(OUT1, OUT2, OUT3, OUT4)
V
+
= 5V
V
+
= 2.7V
t
f
Output Fall Time (Note 7)
(OUT1, OUT2, OUT3, OUT4)
V
+
= 5V
V
+
= 2.7V
Spread Spectrum Frequency
Modulation Spreading Percentage
(Downspread from Maximum
Frequency)
Percent = 100 (f
MAX
– f
MIN
)/f
MAX
(Note 8)
G
G
G
G
35
7.5
35
7.5
45.0
12.5
45.0
12.5
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
The
G
denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25
°
C. V
+
= 2.7V to 5.5V, R
L
= 5k, C
L
= 5pF, Pin 3 (PH) = 0V (2-phase, M = 1)
unless otherwise specified. Pin 9 (MOD) is at 0V unless otherwise specified. R
SET
is defined as a resistor connected from the SET pin
to the V
+
pin. R
MOD
is defined as a resistor connected from the MOD pin to the V
+
pin.
ELECTRICAL CHARACTERISTICS
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