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| 型号： | MAX2821ETM+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC TXRX 802.11B 2.4GHZ 48-TQFN |
| 标准包装： | 2,500 |
| 频率： | 2.4GHz ~ 2.5GHz |
| 数据传输率 - 最大： | 11Mbps |
| 调制或协议： | 802.11b |
| 应用： | ISM |
| 功率 - 输出： | 3dBm |
| 灵敏度： | -97dBm |
| 电源电压： | 2.7 V ~ 3.6 V |
| 电流 - 接收： | 80mA |
| 电流 - 传输： | 70mA |
| 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： | 48-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
19-2493; Rev 5 ; 5/05
2.4GHz 802.11b Zero-IF Transceivers
General Description
The MAX2820/MAX2820A and MAX2821/MAX2821A
single-chip zero-IF transceivers are designed for the
802.11b (11Mbps) applications operating in the
2.4GHz to 2.5GHz ISM band. The transceivers are
nearly identical, except the MAX2821 and MAX2821A
also provide a low-power shutdown mode and an ana-
log voltage reference output. The MAX2820A/
MAX2821A are cost-reduced versions, virtually identi-
cal in pinout and performance to the MAX2820/
MAX2821. The transceivers include all the circuitry
required to implement an 802.11b RF-to-baseband
transceiver solution, providing a fully integrated
receive path, transmit path, VCO, frequency synthesis,
and baseband/control interface. Only a PA, RF switch,
RF BPF, and a small number of passive components are
needed to form the complete radio front-end solution.
The ICs eliminate the need for external IF and base-
band filters by utilizing a direct-conversion radio archi-
tecture and monolithic baseband filters for both
receiver and transmitter. They are specifically opti-
mized for 802.11b (11Mbps CCK) applications. The
baseband filtering and Rx and Tx signal paths support
the CCK modulation scheme for BER = 10 -5 at the
required sensitivity levels.
The devices are suitable for the full range of 802.11b
data rates (1Mbps, 2Mbps, 5.5Mbps, and 11Mbps) and
also the higher-rate 22Mbps PBCC TM standard. The
MAX2820 and MAX2821 are available in a 7mm × 7mm
48-lead QFN package. The MAX2820, MAX2821,
MAX2820A, and MAX2821A are available in a 48-lead
thin QFN package.
Features
o 2.4GHz to 2.5GHz ISM Band Operation
o 802.11b (11Mbps CCK and 22Mbps PBCC) PHY
Compatible
o Complete RF-to-Baseband Transceiver
Direct-Conversion Upconverters and
Downconverters
Monolithic Low-Phase-Noise VCO
Integrated Baseband Lowpass Filters
Integrated PLL with 3-Wire Serial Interface
Digital Bias Control for External PA
Transmit Power Control (Range > 25dB)
Receive Baseband AGC (Range > 65dB)
Complete Baseband Interface
Digital Tx/Rx Mode Control
Analog Receive Level Detection
o -97dBm Rx Sensitivity at 1Mbps
o -87dBm Rx Sensitivity at 11Mbps
o +2dBm Transmit Power (11Mbps CCK)
o Single +2.7V to +3.6V Supply
o Low-Current Shutdown Mode (MAX2821 only)
o Very Small 48-Pin QFN Package(s)
Applications
PART
Ordering Information
TEMP RANGE PIN-PACKAGE
802.11b 11Mbps WLAN
802.11b + 22Mbps PBCC High-Data-Rate WLAN
802.11a + b Dual-Band WLAN
2.4GHz ISM Band Radios
MAX2820 ETM-TD
MAX2820ETM+TD
MAX2820A ETM-TD
MAX2820AETM+TD
MAX2821 ETM-TD
MAX2821ETM+TD
MAX2821A ETM-TD
MAX2821AETM+TD
-40 ° C to +85°C
-40 ° C to +85°C
-40 ° C to +85°C
-40 ° C to +85°C
-40 ° C to +85 ° C
-40 ° C to +85°C
-40 ° C to +85 ° C
-40 ° C to +85°C
48 Thin QFN
Lead Free
48 Thin QFN
Lead Free
48 Thin QFN
Lead Free
48 Thin QFN
Lead Free
PBCC is a trademark of Texas Instruments, Inc.
Pin Configuration/Functional Diagram and Typical
Application Circuit appear at end of data sheet.
________________________________________________________________ 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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| MAX2821ETM-TD | 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MAX2821EVKIT | 功能描述:射频接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 类型:GPS Receiver 封装 / 箱体:QFN-24 工作频率:4.092 MHz 工作电源电压:3.3 V 封装:Reel |
| MAX2822EGM | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
| MAX2822EGM-D | 功能描述:射频收发器 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 |
| MAX2822EGM-TD | 功能描述:射频收发器 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 |
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