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參數(shù)資料
| 型號： | MAX2754 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 1.2GHz VCO with Linear Modulation Input |
| 中文描述： | 1.2GHz VCO，帶有線性調(diào)制輸入 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 175K |
| 代理商： | MAX2754 |
General Description
The MAX2754 self-contained, linear modulation, volt-
age-controlled oscillator (VCO) is intended for use in
the 2.4GHz to 2.5GHz ISM band, particularly for FSK
modulation systems that utilize a direct frequency-mod-
ulation transmit architecture. This device features a lin-
ear modulation input in addition to the standard
frequency tuning input. The frequency tuning range of
1145MHz to 1250MHz (1/2 LO) also supports an IF up
to 110MHz with low side LO. The VCO is based on
Maxim’s proprietary monolithic VCO technology, where
all VCO components are integrated on-chip, including
the varactor and inductor.
The MAX2754 linear modulation input offers a means to
directly FM modulate the VCO with a constant modula-
tion sensitivity over the tuning voltage input range.
Typical frequency deviation is -500kHz/V which is linear
to ±4% over the guaranteed frequency limits. The tun-
ing input voltage range is +0.4V to +2.4V and the oscil-
lator frequency is factory adjusted to provide
guaranteed limits. The oscillator signal is buffered by
an output amplifier stage (internally matched to 50
) to
provide higher output power and isolate the oscillator
from load impedance variations.
The MAX2754 operates over a +2.7V to +5.5V supply
range. This device also provides a digitally controlled
shutdown mode to permit implementation of sophisti-
cated power-supply management. In shutdown, the
supply current is reduced to 0.2μA. Even when active,
power consumption is a modest 41mW.
The MAX2754 is packaged in the miniature 8-pin μMAX
to offer the world’s smallest, complete 2.4GHz direct-
modulation VCO solution.
Applications
HomeRF WLAN
Bluetooth
2.4GHz Cordless Phones
2.4GHz Wireless Data Radios
Features
o
Fully Monolithic VCO Construction with On-Chip
Inductor and Varactor Tuning Elements
o
Guaranteed 1145MHz to 1250MHz Tuning Range
to Support 1/2 LO Applications
o
Modulation Linearity Within ±4%
o
Precise Modulation Gain (-500kHz/V)
o
Low Phase Noise (-137dBc/Hz at 4MHz offset)
o
+2.7V to +5.5V Single-Supply Operation
o
Low-Current Shutdown Mode
o
Miniature 8-Pin μMAX Package
M
1.2GHz VCO with Linear
Modulation Input
________________________________________________________________
Maxim Integrated Products
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.
1
1
2
3
4
8
7
6
5
V
CC
OUT
GND2
SHDN
MOD
GND1
TUNE
VREG
MAX2754
μ
MAX
TOP VIEW
Pin Configuration
Ordering Information
SHDN
GND2
OUT
V
CC
V
CC
MOD
GND1
TUNE
TUNE
VREG
330nF
OUT TO
MIXER/
SYNTHESIZER
330nF
MODULATION
VOLTAGE
SIGNAL
MAX2754
REG AND BIAS
OSCILLATOR
CORE
LINEAR
MODULATION
INTERFACE
SHDN
Typical Operating Circuit
19-2102; Rev 1; 8/03
PART
TEMP RANGE
-40
°
C to +85
°
C
PIN-PACKAGE
8 μMAX
MAX2754EUA
(3mm
5mm)
8-pin μMAX
EVALUATION KIT
AVAILABLE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2754EUA | 功能描述:VCO振蕩器 1.2Ghz VCO w/Linear Modulation Input RoHS:否 制造商:Exar 封裝 / 箱體:SOIC-14 頻率:300 kHz 負(fù)載電容: 封裝:Reel 電源電壓:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作溫度:0 C 最大工作溫度:+ 70 C |
| MAX2754EUA+ | 功能描述:VCO振蕩器 1.2Ghz VCO w/Linear Modulation Input RoHS:否 制造商:Exar 封裝 / 箱體:SOIC-14 頻率:300 kHz 負(fù)載電容: 封裝:Reel 電源電壓:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作溫度:0 C 最大工作溫度:+ 70 C |
| MAX2754EUA+T | 功能描述:VCO振蕩器 1.2Ghz VCO w/Linear Modulation Input RoHS:否 制造商:Exar 封裝 / 箱體:SOIC-14 頻率:300 kHz 負(fù)載電容: 封裝:Reel 電源電壓:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作溫度:0 C 最大工作溫度:+ 70 C |
| MAX2754EUA-T | 功能描述:VCO振蕩器 MAX2754 Eval Kit RoHS:否 制造商:Exar 封裝 / 箱體:SOIC-14 頻率:300 kHz 負(fù)載電容: 封裝:Reel 電源電壓:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作溫度:0 C 最大工作溫度:+ 70 C |
| MAX2754EVKIT | 功能描述:時(shí)鐘和定時(shí)器開發(fā)工具 RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V |
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