MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS
(V
CC
1, V
CC
2 = +2.7V to +5.25V, FDBK = open, TANK = open, OUT and OUT connected to V
CC
through 50Ω, SHDN = 2V,
T
A
= -40°C to +85°C, unless otherwise noted. Typical values measured at V
CC
1 = V
CC
2 = 3.0V, T
A
= +25°C.) (Note 1)
AC ELECTRICAL 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.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
V
CC
1, V
CC
2 to GND .................................................-0.3V to +6V
TANK, SHDN to GND .................................-0.3V to (V
CC
+ 0.3V)
OUT, OUT to GND...........................(V
CC
- 0.6V) to (V
CC
+ 0.3V)
FDBK to GND ..................................(V
CC
- 2.0V) to (V
CC
+ 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
µMAX (derate 5.7mW/°C above +70°C) .....................457mW
Operating Temperature Range
MAX2620EUA .................................................-40°C to +85°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 10s) .................................+300°C
µA
0.1 2
SHDN = 0.6V
Shutdown Current
mA9.0 12.5
UNITSMIN TYP MAXCONDITIONSPARAMETER
Supply Current
V2.0Shutdown Input Voltage High
V0.6Shutdown Input Voltage Low
µA5.5 20
SHDN = 2.0V
Shutdown Bias Current High
µA0.5
SHDN = 0.6V
Shutdown Bias Current Low
MHz10 1050T
A
= -40°C to +85°C (Note 2)
UNITSMIN TYP MAXCONDITIONSPARAMETER
Frequency Range
dB50
OUT or OUT to TANK; OUT, OUT driven at P = -20dBm
Reverse Isolation
dB33
OUT to OUT
Output Isolation
Note 2: Guaranteed by design and characterization at 10MHz, 650MHz, 900MHz, and 1050MHz. Over this frequency range, the
magnitude of the negative real impedance measured at TANK is greater than one-tenth the magnitude of the reactive
impedances at TANK. This implies proper oscillator start-up when using an external resonator tank circuit with Q > 10. C3
and C4 must be tuned for operation at the desired frequency.
Note 1: Specifications are production tested and guaranteed at T
A
= +25°C and T
A
= +85°C. Specifications are guaranteed by
design and characterization at T
A
= -40°C.
