MAX2750EUA+ Maxim Integrated Products, MAX2750EUA+ Datasheet

IC OSC VOLT CNTRL 8-UMAX

MAX2750EUA+

Manufacturer Part Number
MAX2750EUA+
Description
IC OSC VOLT CNTRL 8-UMAX
Manufacturer
Maxim Integrated Products
Series
MAX2750r
Type
Standardr
Datasheet

Specifications of MAX2750EUA+

Function
VCO
Frequency
2.4GHz ~ 2.5GHz
Rf Type
ISM
Secondary Attributes
On-Chip Tank Circuit
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Supply Voltage
2.7V ~ 5.5V
Operating Temperature
-40°C ~ 85°C
Supply Current
17mA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Frequency Stability
-
Lead Free Status / Rohs Status
 Details
The MAX2750/MAX2751/MAX2752 are self-contained volt-
age-controlled oscillators (VCOs) intended for use in the
2.4GHz to 2.5GHz ISM band. Each IC combines a fully
integrated oscillator and output buffer in a miniature 8-pin
µMAX package.
The inductor and varactor elements of the tank are inte-
grated on-chip, greatly simplifying application of the part.
The only required external components are a couple of
supply bypass capacitors. The IC provides direct connec-
tion to the VCO tuning voltage input and the VCO buffer
output. The tuning voltage input range is +0.4V to +2.4V,
and the oscillator frequency tuning range is factory adjust-
ed to provide guaranteed limits. The output signal is
buffered by an amplifier stage (internally matched to 50Ω)
to provide higher output power and isolate the device from
load impedance variations.
The MAX2750/MAX2751/MAX2752 operate over a +2.7V
to +5.5V supply voltage range. Internal regulation of the
oscillator supply voltage eliminates the need for an exter-
nal LDO regulator for the VCO. The IC also provides a dig-
itally controlled shutdown mode to permit implementation
of sophisticated power-supply management. In shutdown,
the supply current is reduced to less than 1µA.
19-1825; Rev 0; 10/00
For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.
________________________Applications
802.11b DSSS WLAN
802.11 FHSS WLAN
Home RF
2.4GHz Bluetooth ISM Proprietary Radio
________________________________________________________________ Maxim Integrated Products
General Description
SHDN
TUNE
BYP
TUNE
GND
SHDN
MAX2750
MAX2751
MAX2752
Voltage-Controlled Oscillators
OSCILLATOR
CORE
BIAS
o Guaranteed Frequency Tuning Range
o On-Chip Tank Circuit
o Internally Matched Output Buffer Amplifier
o Low-Current Shutdown Mode
o +2.7V to +5.5V Supply Voltage Range
o Miniature 8-Pin µMAX Package
Pin Configuration appears at end of data sheet.
MAX2750EUA
MAX2751EUA
MAX2752EUA
MAX2750: 2400MHz to 2500MHz (Zero IF)
MAX2751: 2120MHz to 2260MHz
MAX2752: 2025MHz to 2165MHz
PART
V
V
GND
OUT
CC1
CC2
2.4GHz Monolithic
(240MHz to 280MHz IF)
(335MHz to 375MHz IF)
Typical Operating Circuit
TEMP. RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
Ordering Information
OUT TO MIXER/
SYNTHESIZER
V
CC
PIN-PACKAGE
8 µMAX
8 µMAX
8 µMAX
Features
1

Related parts for MAX2750EUA+

MAX2750EUA+ Summary of contents

Page 1

... FHSS WLAN Home RF 2.4GHz Bluetooth ISM Proprietary Radio TUNE SHDN ________________________________________________________________ Maxim Integrated Products For price, delivery, and to place orders, please contact Maxim Distribution at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. Voltage-Controlled Oscillators o Guaranteed Frequency Tuning Range MAX2750: 2400MHz to 2500MHz (Zero IF) ...

Page 2

... Monolithic Voltage-Controlled Oscillators ABSOLUTE MAXIMUM RATINGS V to GND ..............................................................-0.3V to +6V CC TUNE, SHDN, BYP, OUT to GND ...............-0. Continuous Power Dissipation (T = +70°C) A 8-Pin µMAX (derate 5.7mW/°C above T 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 ...

Page 3

... A 2300 2200 0 0.5 1.0 1.5 2.0 2.5 V (V) TUNE _______________________________________________________________________________________ Voltage-Controlled Oscillators = +2.7V to +5.5V +0.4V to +2.4V TUNE = +3.0V, unless otherwise noted.) CONDITIONS stepped: +3.3V to +2.8V = +25°C. Limits over temperature are guaranteed by design and characterization. A Typical Operating Characteristics ≤ 2V +0.4V to +2.4V +25°C, unless otherwise noted.) ...

Page 4

... Monolithic Voltage-Controlled Oscillators (Circuit of Figure +3.0V TUNE PHASE NOISE -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 -150 0 OFFSET FREQUENCY (MHz) OSCILLATOR TURN-ON TIME 0 -10 -20 -30 -40 -50 -60 -70 8µs -80 -90 -100 TIME (µs) PIN NAME 1 BYP VCO Bypass. Bypass with a 0.1µF capacitor to GND. ...

Page 5

... The output amplifier has its own V and GND pins to minimize CC load-pulling effects. The amplifier boosts the oscillator signal to a level suitable for driving most RF mixers. _______________________________________________________________________________________ Voltage-Controlled Oscillators BYP MAX2750 MAX2751 MAX2752 OSCILLATOR TUNE CORE ...

Page 6

... Monolithic Voltage-Controlled Oscillators Pin Configuration TOP VIEW BYP 1 TUNE 2 MAX2750 MAX2751 GND 3 6 MAX2752 SHDN 4 µMAX 6 _______________________________________________________________________________________ TRANSISTOR COUNT: 176 PROCESS: BiPOLAR 8 GND 7 OUT V CC2 5 V CC1 Chip Information Package Information ...

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