MAX2620EUA ,10MHz to 1050MHz Integrated RF Oscillator with Buffered OutputsFeaturesThe MAX2620 combines a low-noise oscillator with two¤ Low-Phase-Noise Oscillator: -110dBc/ ..
MAX2620EUA+T ,10MHz to 1050MHz Integrated RF Oscillator with Buffered OutputsFeaturesThe MAX2620 combines a low-noise oscillator with two♦ Low-Phase-Noise Oscillator: -110dBc/ ..
MAX2620EUA-T ,10MHz to 1050MHz Integrated RF Oscillator with Buffered OutputsApplicationsLand Mobile RadioPin Configuration appears at end of data sheet.Narrowband PCS (NPCS)__ ..
MAX2623EUA ,Monolithic Voltage-Controlled OscillatorsApplications866MHz to 868MHz European ISM Band PART TEMP. RANGE PIN-PACKAGE(MAX2622)MAX2622EUA -40° ..
MAX262ACWG ,Microprocessor Programmable Universal Active FiltersELECTRICAL CHARACTERISTICS
N' = +5V, V' = -5V, CLK, = CLKB = 1 5V 350kHz for the MAX260 and 1.5M ..
MAX262BCNG ,Microprocessor Programmable Universal Active FiltersApplications
pP Tuned Filters
Anti-Aliasing Filters
Digital Signal Processing
Adaptive Filter ..
MAX5948AESA+ ,-48V Hot-Swap Controllers with External RSENSEApplicationsSelector GuideCentral-Office SwitchingNetwork Switches/Routers PART PWRGD POLARITYMAX59 ..
MAX5948BESA ,-48V Hot-Swap Controllers with External RSENSEELECTRICAL CHARACTERISTICS(V = 0V, V = 48V, T = -40°C to +85°C. Typical values are at T = +25°C, un ..
MAX5948BESA+ ,-48V Hot-Swap Controllers with External RSENSEFeaturesThe MAX5948A/MAX5948B are hot-swap controllers♦ Allow Safe Board Insertion and Removal from ..
MAX5949AESA ,-48V Hot-Swap Controllers with External RSENSEFeaturesThe MAX5949A/MAX5949B are hot-swap controllers that♦ Allow Safe Board Insertion and Removal ..
MAX5949AESA ,-48V Hot-Swap Controllers with External RSENSEApplicationsTelecom Line CardsPART TEMP RANGE PIN-PACKAGENetwork Switches/RoutersMAX5949AESA -40°C ..
MAX5949AESA+ ,-48V Hot-Swap Controllers with External RSENSEELECTRICAL CHARACTERISTICS(V = 0V, V = 48V, T = -40°C to +85°C. Typical values are at T = +25°C, un ..
MAX2620EUA
10MHz to 1050MHz Integrated RF Oscillator with Buffered Outputs
MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
_________________General DescriptionThe MAX2620 combines a low-noise oscillator with two
output buffers in a low-cost, plastic surface-mount,
ultra-small µMAX package. This device integrates func-
tions typically achieved with discrete components. The
oscillator exhibits low phase noise when properly
mated with an external varactor-tuned resonant tank
circuit. Two buffered outputs are provided for driving
mixers or prescalers. The buffers provide load isolation
to the oscillator and prevent frequency pulling due to
load-impedance changes. Power consumption is typi-
cally just 27mW in operating mode (VCC= 3.0V), and
drops to less than 0.3µW in standby mode. The MAX2620
operates from a single +2.7V to +5.25V supply.
________________________ApplicationsAnalog Cellular Phones
Digital Cellular Phones
900MHz Cordless Phones
900MHz ISM-Band Applications
Land Mobile Radio
Narrowband PCS (NPCS)
____________________________FeaturesLow-Phase-Noise Oscillator: -110dBc/Hz
(25kHz offset from carrier) AttainableOperates from Single +2.7V to +5.25V SupplyLow-Cost Silicon Bipolar DesignTwo Output Buffers Provide Load IsolationInsensitive to Supply VariationsLow, 27mW Power Consumption (VCC= 3.0V)Low-Current Shutdown Mode: 0.1µA (typ)*Dice are tested at TA= +25°C, DC parameters only.
MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
ABSOLUTE MAXIMUM RATINGS
DC ELECTRICAL CHARACTERISTICS(VCC1, VCC2 = +2.7V to +5.25V, FDBK = open, TANK = open, OUT and OUTconnected to VCCthrough 50Ω, SHDN= 2V, = -40°C to +85°C, unless otherwise noted. Typical values measured at VCC1 = VCC2 = 3.0V, TA= +25°C.) (Note 1)
AC ELECTRICAL CHARACTERISTICS(Per Test Circuit of Figure 1, VCC= +3.0V, SHDN= VCC, ZLOAD= ZSOURCE= 50W, PIN= -20dBm (50W), fTEST= 900MHz, = +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.
VCC1, VCC2 to GND................................................-0.3V to +6V
TANK, SHDNto GND.................................-0.3V to (VCC+ 0.3V)
OUT, OUTto GND...........................(VCC- 0.6V) to (VCC+ 0.3V)
FDBK to GND..................................(VCC- 2.0V) to (VCC+ 0.3V)
Continuous Power Dissipation (TA= +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, 10sec).............................+300°C
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 TA= +25°C and TA= +85°C. Specifications are guaranteed by
design and characterization at TA= -40°C.
MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
TYPICAL OPERATING CIRCUIT PERFORMANCE—900MHz Band Ceramic-
Resonator-Based Tank(Per Typical Operating Circuit, VCC= +3.0V, VTUNE= 1.5V, SHDN= VCC,load at OUT = 50W, load at OUT= 50Ω, L1 = coaxial
ceramic resonator: Trans-Tech SR8800LPQ1357BY, C6 = 1pF, TA= +25°C, unless otherwise noted.)
Note 3:Guaranteed by design and characterization.
TYPICAL OPERATING CIRCUIT PERFORMANCE—900MHz Band Inductor-Based Tank(Per Typical Operating Circuit, VCC= +3.0V, VTUNE= 1.5V, SHDN= VCC,load at OUT = 50W, load at OUT= 50Ω, L1 = 5nH
(Coilcraft A02T), C6 = 1.5pF, TA= +25°C, unless otherwise noted.)
Note 3:Guaranteed by design and characterization.
MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
__________________________________________Typical Operating Characteristics(Per test circuit of Figure 1, VCC= +3.0V, SHDN= VCC, ZLOAD= ZSOURCE= 50W, PIN= -20dBm/50W, fTEST= 900MHz, TA= +25°C,
unless otherwise noted.)
Table 1. Recommended Load Impedance at OUT or OUTfor
Optimum Power Transfer
MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
_____________________________Typical Operating Characteristics (continued)(Per Typical Operating Circuit, VCC= +3.0V, VTUNE= 1.5V, SHDN= VCC,load at OUT = 50W, load at OUT= 50Ω, L1 = coaxial
ceramic resonator: Trans-Tech SR8800LPQ1357BY, C6 = 1pF, TA= +25°C, unless otherwise noted.)
MAX2620
10MHz to 1050MHz Integrated
RF Oscillator with Buffered Outputs
_______________________________________________________________Pin Description
_____________________________Typical Operating Characteristics (continued)(Per Typical Operating Circuit, VCC= +3.0V, VTUNE= 1.5V, SHDN= VCC,load at OUT = 50W, load at OUT= 50Ω, L1 = coaxial
ceramic resonator: Trans-Tech SR8800LPQ1357BY, C6 = 1pF, TA= +25°C, unless otherwise noted.)
