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ATION
EVALU
AVAILA
19-2799; Rev 0; 4/03
KIT
B LE
Digitally Controlled, Variable-Gain, Differential
ADC Driver/Amplifier
General Description
The MAX2055 high-performance, digitally controlled,
variable-gain, differential analog-to-digital converter
(ADC) driver/amplifier (DVGA) is designed for use from
30MHz to 300MHz in base station receivers.
The device integrates a digitally controlled attenuator
and a high-linearity single-ended-to-differential output
amplifier, which can either eliminate an external trans-
former, or can improve the even-order distortion perfor-
mance of a transformer-coupled circuit, thus relaxing
the requirements of the anti-alias filter preceding an
ADC. Targeted for ADC driver applications to adjust
gain either dynamically or as a one-time channel gain
setting, the MAX2055 is ideal for applications requiring
high performance. The attenuator provides 23dB of
attenuation range with ±0.2dB accuracy.
The MAX2055 is available in a thermally enhanced 20-
pin TSSOP-EP package and operates over the -40°C to
+85°C temperature range.
Features
? 30MHz to 300MHz Frequency Range
? Single-Ended-to-Differential Conversion
? -3dB to +20dB Variable Gain
? 40dBm Output IP3 (at All Gain States and 70MHz)
? 2nd Harmonic -76dBc
? 3rd Harmonic -69dBc
? Noise Figure: 5.8dB at Maximum Gain
? Digitally Controlled Gain with 1dB Resolution and
±0.2dB Accuracy
? Adjustable Bias Current
Ordering Information
Cellular Base Stations
PHS/PAS Infrastructure
Applications
PART
MAX2055EUP-T
*EP = Exposed paddle.
TEMP RANGE
-40 ° C to +85 ° C
PIN-PACKAGE
20 TSSOP-EP*
Receiver Gain Control
Broadband Systems
Automatic Test Equipment
Terrestrial Links
High-Performance ADC Drivers
TOP VIEW
V CC 1
RF_IN 2
Pin Configuration/
Functional Diagram
20 GND
19 ATTN OUT
GND 3
B4 4
B3 5
B2 6
B1 7
B0 8
V CC 9
RF_OUT- 10
MAX2055
ATTENUATION
LOGIC
CONTROL
TSSOP
18 GND
17 I SET
16 C C
15 AMP IN
14 L E
13 C BP
12 I BIAS
11 RF_OUT+
________________________________________________________________ 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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MAX2055EUP-T 制造商:Maxim Integrated Products 功能描述:DIGITALLY CONTROLLED, VARIABLE-GAIN, DIFFEREN - Tape and Reel
MAX2055EUP-TD 功能描述:射频放大器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
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MAX2056_1 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit
MAX2056ETX 功能描述:射频放大器 0.8GHz - 1GHz Variable-Gain Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel
MAX2056ETX+ 功能描述:射频放大器 0.8GHz - 1GHz Variable-Gain Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel