Hig h -Fre q u e n c y Wa ve fo rm Ge n e ra t o r
MAX038
ELECTRICAL CHARACTERISTICS (continued)
(Circ uit of Fig ure 1, GND = DGND = 0V, V+ = DV+ = 5V, V- = -5V, V
= V
= V
= V = 0V, C = 100p F,
PDO F
DADJ
FADJ
PDI
R
IN
= 25kΩ, R = 1kΩ, C = 20pF, T = T
to T , unless otherwise noted. Typical values are at T = +25°C.)
MAX A
L
L
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SYNC OUTPUT
Output Low Voltage
Output High Voltage
Rise Time
V
I
= 3.2mA
0.3
3.5
10
0.4
V
V
OL
SINK
V
OH
I
= 400µA
2.8
SOURCE
t
10% to 90%, R = 3kΩ, C = 15pF
ns
ns
%
R
L
L
Fall Time
t
90% to 10%, R = 3kΩ, C = 15pF
10
F
L
L
Duty Cycle
dc
50
SYNC
DUTY-CYCLE ADJUSTMENT (DADJ)
DADJ Input Current
I
190
15
250
320
µA
V
DADJ
DADJ Voltage Range
Duty-Cycle Adjustment Range
DADJ Nonlinearity
V
±2.3
DADJ
dc
dc/V
-2.3V ≤ V
≤ 2.3V
85
4
%
DADJ
-2V ≤ V
≤ 2V
2
%
FADJ
DADJ
Change in Output Frequency
with DADJ
F /V
-2V ≤ V ≤ 2V
DADJ
±2.5
±8
%
o
DADJ
Maximum DADJ Modulating
Frequency
F
DC
2
MHz
FREQUENCY ADJUSTMENT (FADJ)
FADJ Input Current
I
190
250
±2.4
±70
±0.2
±2
320
µA
V
FADJ
FADJ Voltage Range
V
FADJ
Frequency Sweep Range
FM Nonlinearity with FADJ
F
-2.4V ≤ V
≤ 2.4V
%
%
%
o
FADJ
F /V
o
-2V ≤ V
FADJ
≤ 2V
≤ 2V
FADJ
Change in Duty Cycle with FADJ dc/V
-2V ≤ V
FADJ
FADJ
Maximum FADJ Modulating
Frequency
F
2
MHz
F
VOLTAGE REFERENCE
Output Voltage
V
I
= 0
2.48
2.50
20
2.52
V
REF
REF
Temperature Coefficient
V
REF
/°C
ppm/°C
0mA ≤ I
-100µA ≤ I
≤ 4mA (source)
1
1
2
4
REF
Load Regulation
V
/I
mV/mA
mV/V
REF REF
≤ 0µA (sink)
REF
Line Regulation
V
/V+ 4.75V ≤ V+ ≤ 5.25V (Note 2)
1
2
REF
LOGIC INPUTS (A0, A1, PDI)
Input Low Voltage
V
0.8
V
V
IL
Input High Voltage
V
IH
2.4
Input Current (A0, A1)
Input Current (PDI)
I , I
V
, V = V , V
IL IH
±5
µA
µA
IL IH
A0 A1
I , I
IL IH
V
PDI
= V , V
IL IH
±25
POWER SUPPLY
Positive Supply Voltage
SYNC Supply Voltage
Negative Supply Voltage
Positive Supply Current
SYNC Supply Current
Negative Supply Current
V+
DV+
V-
4.75
4.75
-4.75
5.25
5.25
-5.25
45
V
V
V
I+
35
1
mA
mA
mA
I
2
DV+
I-
45
55
Note 1: Guaranteed by duty-cycle test on square wave.
Note 2: V is independent of V-.
REF
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
