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| 型号： | MAX2754EUA+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/8页 |
| 文件大小： | 0K |
| 描述： | IC VCO 1.2GHZ W/MOD INPUT 8-UMAX |
| 标准包装： | 2,500 |
| 功能： | VCO |
| 频率： | 2.4GHz ~ 2.5GHz |
| RF 型： | 蓝牙 |
| 次要属性： | 线性调制输入 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 包装： | 带卷 (TR) |
19-2102; Rev 2; 5/06
ATION
EVALU
AVAILA
KIT
BLE
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-
1.2GHz VCO with Linear
Modulation Input
Features
? Fully Monolithic VCO Construction with On-Chip
Inductor and Varactor Tuning Elements
? Guaranteed 1145MHz to 1250MHz Tuning Range
to Support 1/2 LO Applications
? Modulation Linearity Within ±4%
? Precise Modulation Gain (-500kHz/V)
? Low Phase Noise (-137dBc/Hz at 4MHz offset)
? +2.7V to +5.5V Single-Supply Operation
? Low-Current Shutdown Mode
? Miniature 8-Pin μMAX ? Package
Ordering Information
lator frequency is factory adjusted to provide
guaranteed limits. The oscillator signal is buffered by
an output amplifier stage (internally matched to 50 ? ) to
PART
MAX2754EUA
TEMP RANGE
-40°C to +85°C
PIN-PACKAGE
8 μMAX
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
8-pin μMAX
(3mm ? 5mm)
μMAX is a registered trademark of Maxim Integrated Circuits, Inc.
Typical Operating Circuit
Bluetooth
2.4GHz Cordless Phones
330nF
VREG
REG AND BIAS
V CC
V CC
330nF
2.4GHz Wireless Data Radios
Pin Configuration
TUNE
TUNE
OSCILLATOR
CORE
OUT
OUT TO
MIXER/
SYNTHESIZER
TOP VIEW
GND1
GND2
VREG
1
8
V CC
TUNE
GND1
2
3
MAX2754
7
6
OUT
GND2
MODULATION
VOLTAGE
MOD
LINEAR
MODULATION
INTERFACE
SHDN
SHDN
MOD
4
5
SHDN
SIGNAL
μ MAX
MAX2754
________________________________________________________________ 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
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相关代理商/技术参数 |
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| MAX2754EVKIT | 功能描述:时钟和定时器开发工具 RoHS:否 制造商:Texas Instruments 产品:Evaluation Modules 类型:Clock Conditioners 工具用于评估:LMK04100B 频率:122.8 MHz 工作电源电压:3.3 V |
| MAX2754EVKIT+ | 功能描述:时钟和定时器开发工具 MAX2754 Eval Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Modules 类型:Clock Conditioners 工具用于评估:LMK04100B 频率:122.8 MHz 工作电源电压:3.3 V |
| MAX275ACPP | 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube |
| MAX275ACPP+ | 功能描述:有源滤波器 4th & 8th Order Continuous-Time RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube |
| MAX275ACWP | 功能描述:有源滤波器 RoHS:否 制造商:Maxim Integrated 通道数量:1 截止频率:150 KHz 电源电压-最大:11 V 电源电压-最小:4.74 V 最大工作温度:+ 85 C 安装风格:Through Hole 封装 / 箱体:PDIP N 封装:Tube |
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