參數(shù)資料
型號(hào)： MAX038
廠商： Maxim Integrated Products, Inc.
英文描述： High-Frequency Waveform Generator
中文描述： 高頻波形發(fā)生器
文件頁數(shù)： 3/16頁
文件大?。?/td> 203K
代理商： MAX038
M
High-Frequenc y Waveform Generator
_______________________________________________________________________________________
3
ELECTRICAL CHARACTERISTICS (continued)
(Circuit of Figure 1, GND = DGND = 0V, V+ = DV+ = 5V, V- = -5V, V
DADJ
= V
FADJ
= V
PDI
= V
PDO
= 0V, C
F
= 100pF,
R
IN
= 25k
, R
L
= 1k
, C
L
= 20pF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1:
Guaranteed by duty-cycle test on square wave.
Note 2:
V
REF
is independent of V-.
PARAMETER
DADJ Nonlinearity
Change in Output Frequency
with DADJ
Maximum DADJ Modulating
Frequency
FREQUENCY ADJUSTMENT (FADJ)
SYMBOL
MIN
TYP
MAX
dc/V
FADJ
2
4
UNITS
%
Duty Cycle
DUTY-CYCLE ADJUSTMENT (DADJ)
dc
SYNC
50
%
Fall Time
t
F
10
ns
Rise Time
t
R
10
ns
DADJ Input Current
DADJ Voltage Range
Duty-Cycle Adjustment Range
I
DADJ
V
DADJ
dc
190
250
±2.3
320
μA
V
%
F
o
/V
DADJ
±2.5
±8
%
15
85
F
DC
2
MHz
Output Low Voltage
Output High Voltage
FADJ Input Current
FADJ Voltage Range
Frequency Sweep Range
FM Nonlinearity with FADJ
Change in Duty Cycle with FADJ
Maximum FADJ Modulating
Frequency
VOLTAGE REFERENCE
I
FADJ
V
FADJ
F
o
F
o
/V
FADJ
dc/V
FADJ
190
250
±2.4
±70
±0.2
±2
320
μA
V
%
%
%
V
OL
V
OH
0.3
3.5
0.4
V
V
2.8
Output Voltage
Temperature Coefficient
V
REF
V
REF
/°C
2.48
2.50
20
1
1
1
2.52
V
CONDITIONS
-2V
≤
V
DADJ
≤
2V
90% to 10%, R
L
= 3k
, C
L
= 15pF
10% to 90%, R
L
= 3k
, C
L
= 15pF
-2V
≤
V
DADJ
≤
2V
-2.3V
≤
V
DADJ
≤
2.3V
I
SINK
= 3.2mA
I
SOURCE
= 400μA
-2.4V
≤
V
FADJ
≤
2.4V
-2V
≤
V
FADJ
≤
2V
-2V
≤
V
FADJ
≤
2V
I
REF
= 0
ppm/°C
0mA
≤
I
REF
≤
4mA (source)
-100μA
≤
I
REF
≤
0μA (sink)
4.75V
≤
V+
≤
5.25V (Note 2)
2
4
2
Load Regulation
V
REF
/I
REF
mV/mA
Line Regulation
LOGIC INPUTS (A0, A1, PDI)
V
REF
/V+
mV/V
Input Low Voltage
Input High Voltage
Input Current (A0, A1)
Input Current (PDI)
POWER SUPPLY
V
IL
V
IH
I
IL
, I
IH
I
IL
, I
IH
0.8
V
V
2.4
V
A0
, V
A1
= V
IL
, V
IH
V
PDI
= V
IL
, V
IH
±5
±25
μA
μA
Positive Supply Voltage
SYNC Supply Voltage
Negative Supply Voltage
Positive Supply Current
SYNC Supply Current
Negative Supply Current
V+
DV+
V-
I+
I
DV+
I-
4.75
4.75
-4.75
5.25
5.25
-5.25
45
2
55
V
V
V
35
1
45
mA
mA
mA
F
F
2
MHz
SYNC OUTPUT
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