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MAX2470 fiches techniques PDF

Maxim Integrated - 10MHz to 500MHz VCO Buffer Amplifiers with Differential Outputs

Numéro de référence MAX2470
Description 10MHz to 500MHz VCO Buffer Amplifiers with Differential Outputs
Fabricant Maxim Integrated 
Logo Maxim Integrated 





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MAX2470 fiche technique
19-4797; Rev 0; 2/99
10MHzEVFAOLLULAOTWIOSNDKAITTAMSAHNEUEATL to 500MHz VCO Buffer Amplifiers
with Differential Outputs
General Description
The MAX2470/MAX2471 are flexible, low-cost, high-
reverse-isolation buffer amplifiers for applications with
discrete and module-based VCO designs. Both feature
differential 50outputs for driving a single differential
(balanced) load or two separate single-ended (unbal-
anced) 50loads. The MAX2470 offers a single-ended
input and has two selectable frequency ranges of oper-
ation: 10MHz to 500MHz and 10MHz to 200MHz. The
MAX2471 offers a differential input and operates from
10MHz to 500MHz. The MAX2470/MAX2471 also feature
high input impedance for maximum flexibility, enabling
them to be used with a variety of oscillator topologies.
High reverse isolation combined with low supply current
make them ideal for applications requiring high perfor-
mance with low power.
These devices are also ideal for use as active baluns.
The MAX2470 converts a single-ended input to a differ-
ential output. The MAX2471 is useful as a differential
buffer stage or to convert from a differential input to two
single-ended outputs.
The MAX2470 operates from a single +2.7V to +5.5V
supply. At -5dBm output power, it consumes 5.5mA in
the high-frequency range and only 3.6mA in the
low-frequency range. The MAX2471 operates from a
+2.7V to +5.5V single supply and consumes 5.5mA.
Both devices are available in ultra-small SOT23-6 plas-
tic packages, requiring minimal board space.
Applications
Cellular and PCS Mobile Phones
ISM-Band Applications
Active Baluns
General-Purpose Buffers/Amplifiers
Pin Configuration
TOP VIEW
OUT 1
6 VCC
MAX2470
GND 2 MAX2471 5 IN
OUT 3
4 HI/LO (IN)
( ) ARE FOR MAX2471
SOT23-6
Features
o +2.7V to +5.5V Supply Range
o Input Frequency Range
High: 10MHz to 500MHz (MAX2470/2471)
Low: 10MHz to 200MHz (MAX2470)
o >14dB Power Gain at 200MHz
o 64dB Typical Reverse Isolation at 200MHz
o Low-Distortion Output Drive
o Ultra-Small SOT23-6 Package
o High Input Impedance
o Single-Ended (MAX2470) or Differential
(MAX2471) Inputs
Ordering Information
PART
TEMP. RANGE
MAX2470EUT-T -40°C to +85°C
MAX2471EUT-T -40°C to +85°C
PIN-
PACKAGE
6 SOT23-6
6 SOT23-6
SOT TOP
MARK
AAAX
AAAY
Typical Operating Circuits
VCC
HI/LO
BIAS MAX2470
OUT
IN 50
OUT
GND
VCC
50
BIAS MAX2471
IN OUT
50
IN OUT
50
GND
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.
For small orders, phone 1-800-835-8769.

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