LTC6909 Linear Dimensions Semiconductor, LTC6909 Datasheet - Page 3

• Manufacturer Part Number: LTC6909
• Description: Multiphase Silicon Oscillator
• Manufacturer: Linear Dimensions Semiconductor

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ELECTRICAL CHARACTERISTICS
temperature range, otherwise specifi cations are at T
C
R
SYMBOL
R
V
I
V
V
I
V
V
I
V
V
t
t
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: LTC6909C and the LTC6909I are guaranteed functional over the
operating temperature range of –40°C to 85°C.
S
MOD
IN_PHX
r
f
+
IH_MOD
IL_MOD
IH_PH
IL_PH
OH
OL
L
SET
SET
A, V
= 5pF unless otherwise noted. The modulation is turned off (MOD is connected to OUT1) and PH = 8 unless otherwise specifi ed.
is defi ned as the resistor connected from the SET pin to the V
+
D
PARAMETER
Range of the R
Connected Between the V
the SET Pin
Frequency Spread with SSFM
Enabled
Long-Term Stability of the Output
Frequency (Note 9)
Duty Cycle (Note 6)
Operating Supply Voltage Range
V
High Level MOD Input Voltage
Low Level MOD Input Voltage
MOD Input Current (Note 7)
High Level PHx Input Voltage
Low Level PHx Input Voltage
Digital Input Current, PH0, PH1, PH2 0V < V
High Level Output Voltage
(OUT1 Through OUT8)(Note 7)
Low Level Output Voltage
(OUT1 Through OUT8)(Note 7)
Output Rise Time (Note 8)
Output Fall Time (Note 8)
+
Combined Supply Current
SET
Resistor
+
A Pin and
CONDITIONS
4.5V ≤ V
2.7V ≤ V
R
MOD Pin = V
SSFM Disabled
R
(f
V
V
R
(f
V
V
R
(f
V
V
MOD Pin = V
MOD Pin = GND, V
PHx Refers to PH0, PH1 and PH2
PHx Refers to PH0, PH1 and PH2
V
V
V
V
V
V
V
V
+
+
+
+
+
+
+
+
+
+
+
+
+
+
SET
SET
OUT
SET
OUT
SET
OUT
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 5V
= 2.7V
= 100k
= 2M, R
= 20k, R
= 2M, R
= 12.5kHz), SSFM = f
= 3.33MHz), SSFM = f
= 12.5kHz), SSFM Off
IN
+
+
< V
A
≤ 5.5V
≤ 4.5V
= 25°C or as noted. Test conditions are V
+
+
+
L
L
, GND or Open
L
, V
= ∞, PH = 8, MOD = V
= ∞, PH = 8, MOD = OUT1,
= ∞, PH = 3, MOD = GND,
The
+
No Load
5mA Load to GND
No Load
3mA Load to GND
No Load
5mA Load to V
No Load
3mA Load to V
= 5V
+
= 5V
●
denotes the specifi cations which apply over the full operating
+
OUT
A pin.
OUT
Note 3: The LTC6909C is guaranteed to meet specifi ed performance from
0°C to 70°C. The LTC6909C is designed, characterized and expected to
meet specifi ed performance from –40°C to 85°C but is not tested or QA
sampled at these temperatures. The LTC6909I is guaranteed to meet
specifi ed performance from –40°C to 85°C. The LTC6909H is guaranteed
to meet specifi ed performance from –40°C to 125°C.
/64
/16
+
+
+
,
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
+
= V
V
V
+
+
MIN
4.35
2.7
2.1
20
±7
45
–4
10
+
– 0.4
– 0.4
A = V
+
D = 2.7V to 5.5V, R
0.55
0.37
4.92
4.65
2.63
0.07
0.25
0.07
0.25
TYP
1.55
300
±10
0.6
2.4
0.4
2.4
1.6
2.5
1.6
50
–2
2
2
LTC6909
MAX
2000
2000
0.85
0.65
0.55
0.55
±13
5.5
0.8
0.6
0.4
0.4
2.7
1.8
55
±1
4
ppm/ √ kHr
L
= 5k,
UNITS
3
6909f
mA
mA
mA
mA
mA
mA
kΩ
kΩ
μA
μA
μA
ns
ns
ns
ns
%
%
V
V
V
V
V
V
V
V
V
V
V
V
V