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PDF MAX2753 Data sheet ( Hoja de datos )
| Número de pieza | MAX2753 | |
| Descripción | 2.4GHz Monolithic Voltage-Controlled Oscillator with Differential Outputs | |
| Fabricantes | Maxim Integrated | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de MAX2753 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas | ||
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19-1913; Rev 0; 1/01
2.4GHz Monolithic Voltage-ControlledwwEwVF.DAOaLLtUaLASOThWeIOSeNtD4UKAI.TTcAoMmSAHNEUEATL
Oscillator with Differential Outputs
General Description
The MAX2753 is a self-contained voltage-controlled oscil-
lator (VCO) intended for use in 2.4GHz radios that utilize a
low-IF or zero-IF architecture. It combines a fully integrat-
ed 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 MAX2753 provides direct
connection 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
adjusted 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. In addition, the MAX2753 pro-
vides differential outputs.
The MAX2753 operates over a +2.7V to +5.5V supply volt-
age range. Internal regulation of the oscillator supply volt-
age eliminates the need for an external LDO regulator for
the VCO. The MAX2753 also provides a digitally controlled
shutdown mode to permit implementation of sophisticated
power-supply management. In shutdown, the supply cur-
rent is reduced to less than 1µA.
________________________Applications
802.11 FHSS WLAN
Home RF
2.4GHz Bluetooth ISM Proprietary Radio
Features
o Guaranteed Frequency Tuning Range: 2400MHz
to 2500MHz
o Compatible with Low-IF or Zero-IF Radio
Architectures
o Differential Outputs
o On-Chip Tank Circuit
o Internally Matched Output Buffer Amplifier
o 1µA Shutdown Mode
o +2.7V to +5.5V Supply Voltage Range
o Miniature 8-Pin µMAX Package
PART
MAX2753EUA
Ordering Information
TEMP. RANGE
-40°C to +85°C
PIN-PACKAGE
8 µMAX
Pin Configuration
TOP VIEW
BYP 1
TUNE 2
GND 3
SHDN 4
MAX2753
8 GND
7 OUTN
6 VCC
5 OUTP
µMAX
Typical Operating Circuit
BYP
GND
TUNE
SHDN
TUNE
OSCILLATOR
CORE
GND
MAX2753
SHDN
BIAS
OUTN
VCC
OUTP
OUT TO MIXER/
SYNTHESIZER
VCC
OUT TO MIXER/
SYNTHESIZER
________________________________________________________________ Maxim Integrated Products 1
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.
1 page  
www.DataSheet4U.com 2.4GHz Monolithic Voltage-Controlled
Oscillator with Differential Outputs
0.1µF
BYP
FROM
SYNTHESIZER
LOOP FILTER
SHDN
TUNE
OSCILLATOR
CORE
GND
MAX2753
SHDN
BIAS
Figure 1. Typical Application Circuit
Chip Information
TRANSISTOR COUNT: 176
PROCESS: BiPOLAR
GND
OUTN
OUT TO MIXER/
SYNTHESIZER
VCC
OUTP
VCC
220pF
OUT TO MIXER/
SYNTHESIZER
_______________________________________________________________________________________ 5
5 Page | ||
| Páginas | Total 6 Páginas | |
| PDF Descargar | [ Datasheet MAX2753.PDF ] | |
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