Datasheet

MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
4 _______________________________________________________________________________________
__________________________________________Typical Operating Characteristics
(Test Circuit of Figure 1, V
CC
= +3.0V, SHDN = V
CC
, Z
LOAD
= Z
SOURCE
= 50Ω, P
IN
= -20dBm/50Ω, f
TEST
= 900MHz, T
A
= +25°C,
unless otherwise noted.)
-5
B
C
0
A:
B:
C:
10MHz BAND CIRCUIT
NOT CHARACTERIZED FOR THIS FREQUENCY BAND.
EXPECTED PERFORMANCE SHOWN.
900MHz BAND CIRCUIT
200 400 600 800 1000 1200
OUT OUTPUT POWER vs. FREQUENCY
OVER V
CC
AND TEMPERATURE
-7
MAX2620-01
FREQUENCY (MHz)
POWER (dBm)
-9
-6
-8
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
V
CC
= 5.25V
V
CC
= 5.25V
V
CC
= 2.7V
V
CC
= 2.7V
A
-13.0
-13.5
-12.0
-12.5
-11.0
-11.5
0 400200 600 800 1000 1200
OUT OUTPUT POWER vs. FREQUENCY
OVER V
CC
AND TEMPERATURE
MAX2620-02
FREQUENCY (MHz)
POWER (dBm)
V
CC
= 5.25V
V
CC
= 2.7V
T
A
= +85°C
T
A
= +25°C
T
A
= -40°C
FREQUENCY
(MHz)
REAL COMPONENT
(R in Ω)
IMAGINARY COMPONENT
(X in Ω)
250 106 163
350 68 102
450 60 96
550 35 79
1050 6.5 22.7
Table 1. Recommended Load Impedance at OUT or OUT for
Optimum Power Transfer
850
650 17.5 62.3
750 17.2 50.6
10.9 33.1
950 7.3 26.3