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19-1825; Rev 1; 5/12
ATION
AILABL
EVALU E
AV
KIT
2.4GHz Monolithic
Voltage-Controlled Oscillators
General Description
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 50 Ω )
to provide higher output power and isolate the device from
load impedance variations.
The MAX2750/MAX2751/MAX2752 operate over a +2.7V
Features
? Guaranteed Frequency Tuning Range
MAX2750: 2400MHz to 2500MHz (Zero IF)
MAX2751: 2120MHz to 2260MHz
(240MHz to 280MHz IF)
MAX2752: 2025MHz to 2165MHz
(335MHz to 375MHz IF)
? On-Chip Tank Circuit
? Internally Matched Output Buffer Amplifier
? Low-Current Shutdown Mode
? +2.7V to +5.5V Supply Voltage Range
? Miniature 8-Pin μMAX Package
Ordering Information
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,
PART
MAX2750 EUA+
MAX2751 EUA+
MAX2752 EUA+
TEMP RANGE
-40 ° C to +85 ° C
-40 ° C to +85 ° C
-40 ° C to +85 ° C
PIN-PACKAGE
8 μMAX
8 μMAX
8 μMAX
the supply current is reduced to less than 1μA.
________________________Applications
802.11b DSSS WLAN
802.11 FHSS WLAN
+Denotes a lead(Pb)-free/RoHS-compliant package.
Devices are also available in a tape-and-reel packaging. Specify
tape and reel by adding “T” to the part number when ordering.
Pin Configuration appears at end of data sheet.
Home RF
2.4GHz Bluetooth ISM Proprietary Radio
Typical Operating Circuit
BYP
GND
TUNE
TUNE
OSCILLATOR
CORE
OUT
OUT TO MIXER/
SYNTHESIZER
GND
V CC1
MAX2750
MAX2751
MAX2752
V CC
SHDN
SHDN
BIAS
V CC2
For pricing, delivery, and ordering information, please contact Maxim 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
MAX2753EUA 功能描述:VCXO振荡器 RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C
MAX2753EUA+ 功能描述:VCXO振荡器 RF and RFID RoHS:否 制造商:Fox 封装 / 箱体:5 mm x 3.2 mm 频率:19.2 Mhz 频率稳定性:2.5 PPM 输出格式: 封装:Reel 电源电压:3 V 端接类型:SMD/SMT 尺寸:3.2 mm W x 5 mm L x 1.5 mm H 最小工作温度:- 20 C 最大工作温度:+ 75 C
MAX2753EUA+T 功能描述:射频无线杂项 RF and RFID RoHS:否 制造商:Texas Instruments 工作频率:112 kHz to 205 kHz 电源电压-最大:3.6 V 电源电压-最小:3 V 电源电流:8 mA 最大功率耗散: 工作温度范围:- 40 C to + 110 C 封装 / 箱体:VQFN-48 封装:Reel
MAX2754EUA 功能描述:VCO振荡器 1.2Ghz VCO w/Linear Modulation Input RoHS:否 制造商:Exar 封装 / 箱体:SOIC-14 频率:300 kHz 负载电容: 封装:Reel 电源电压:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作温度:0 C 最大工作温度:+ 70 C
MAX2754EUA+ 功能描述:VCO振荡器 1.2Ghz VCO w/Linear Modulation Input RoHS:否 制造商:Exar 封装 / 箱体:SOIC-14 频率:300 kHz 负载电容: 封装:Reel 电源电压:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作温度:0 C 最大工作温度:+ 70 C
MAX2754EUA+T 功能描述:VCO振荡器 1.2Ghz VCO w/Linear Modulation Input RoHS:否 制造商:Exar 封装 / 箱体:SOIC-14 频率:300 kHz 负载电容: 封装:Reel 电源电压:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作温度:0 C 最大工作温度:+ 70 C
MAX2754EUA-T 功能描述:VCO振荡器 MAX2754 Eval Kit RoHS:否 制造商:Exar 封装 / 箱体:SOIC-14 频率:300 kHz 负载电容: 封装:Reel 电源电压:4.5 V to 20 V 尺寸:4 mm W x 8.75 mm L x 1.75 mm H 最小工作温度:0 C 最大工作温度:+ 70 C
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