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参数资料
| 型号： | MAX2511EEI+ |
| 厂商： | Maxim Integrated |
| 文件页数： | 10/16页 |
| 文件大小： | 0K |
| 描述： | IC TXRX IF W/RSSI&LIMIT 28-QSOP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 50 |
| 频率： | 200MHz ~ 440MHz |
| 功率 - 输出： | -2dBm |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 接收： | 24mA |
| 电流 - 传输： | 26mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 28-QSOP |
| 包装： | 管件 |
Low-Voltage IF Transceiver
with Limiter and RSSI
IF BPF
LIMIN
RECEIVE IMAGE-REJECT MIXER
MIXOUT
VREF
CZ
OFFSET
CZ
CORRECTION
RXIN
RXIN
90°
0°
Σ
GM
LIMITER
LIMOUT
LIMOUT
VGA
TANK
TANK
OSCOUT
0°
90°
LO PHASE
SHIFTER
VREF = V CC / 2
RSSI
RSSI
RXEN
BIAS
TXEN
TXIN
TXOUT
PA
VGA
Σ
0°
TXIN
TXOUT
90°
TRANSMIT IMAGE-REJECT MIXER AND VGA/PA
MAX2511
VOLTAGE GAIN
AND BIAS CONTROL
GC
Figure 1. Functional Diagram
_______________Detailed Description
The following sections describe each of the blocks
shown in Figure 1.
Receiver
The receiver consists of two basic blocks: the image-
reject downconverter mixer and the limiter/RSSI section.
The receiver inputs are the RXIN, RXIN pins, which
should be AC coupled and may require a matching net-
work, as shown in the Typical Operating Circuit. To
design a matching network for a particular application,
refer to the Applications Information section and the
receiver input impedance plots in the Typical Operating
Characteristics.
Image-Reject Mixer
The downconverter is implemented using an image-
reject mixer consisting of an input buffer with dual out-
puts, each of which is fed to a double-balanced mixer.
The LO signal is generated by an on-chip oscillator and
an external tank circuit. The buffered oscillator signal
drives a quadrature phase generator that provides two
outputs with 90° of phase shift between them. This pair
of LO signals is fed to the two receive mixers. The
mixer ’s outputs are then passed through a pair of
phase shifters, which provide 90° of phase shift across
their outputs. The resulting two signals are then
summed together. The final phase relationship is such
that the desired signal is reinforced, and the image sig-
nal is largely canceled. The downconverter mixer ’s
10
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2511EEI+ | 功能描述:射频收发器 IF Txr w/Limitr RSSI RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MAX2511EEI+T | 功能描述:射频收发器 IF Txr w/Limitr RSSI RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MAX2511EEI-T | 功能描述:射频收发器 IF Txr w/Limitr RSSI RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MAX2511EVKIT | 功能描述:射频开发工具 MAX2511 Eval Kit RoHS:否 制造商:Taiyo Yuden 产品:Wireless Modules 类型:Wireless Audio 工具用于评估:WYSAAVDX7 频率: 工作电源电压:3.4 V to 5.5 V |
| MAX2514AWLX#G42 | 制造商:Maxim Integrated Products 功能描述: |
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