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参数资料
| 型号： | MAX2820ETM+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 12/26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： | 802.11 b |
| 应用： | ISM |
| 功率 - 输出： | 3dBm |
| 灵敏度： | -97dBm |
| 电源电压： | 2.5 V ~ 5.5 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) |
2.4GHz 802.11b Zero-IF Transceivers
Pin Description
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
NAME
VCC_LNA
N.C.
VREF
RF_GAIN
RX_RFN
RX_RFP
VCC_REF
RBIAS
TX_RFP
TX_RFN
PA_BIAS
VCC_DRVR
TX_GC
VCC_TMX
TX_BBIN
TX_BBIP
TX_BBQP
TX_BBQN
VCC_TXF
GND_DIG
DESCRIPTION
Supply Voltage for LNA. Bypass with a capacitor as close to the pin as possible. Do not share the
bypass capacitor ground vias with other branches.
No Connection. Not internally connected (MAX2820/MAX2820A only).
Voltage Reference Output (MAX2821/MAX2821A only).
LNA Gain Select Logic Input. Logic high for LNA high-gain mode, logic low for LNA low-gain mode.
Receiver LNA Negative Input. On-chip AC-coupling. Requires off-chip impedance match and
connection to 2:1 balun.
Receiver LNA Positive Input. On-chip AC-coupling. Requires off-chip impedance match and
connection to 2:1 balun.
Supply Voltage for Bias Circuitry and Autotuner. Bypass with a capacitor as close to the pin as
possible. Do not share the bypass capacitor ground vias with other branches.
Precision Bias Resistor Pin. Connect a 12k ? precision resistor ( ≤ 2%) to GND.
Transmit Driver Amplifier Positive Output. On-chip pullup choke to V CC . Requires off-chip impedance
match and connection to 4:1 balun.
Transmit Driver Amplifier Negative Output. On-chip pullup choke to V CC . Requires off-chip
impedance match and connection to 4:1 balun.
Power-Amplifier Bias-Current Control Signal. Analog output. High-impedance, open-drain current
source. Connect directly to bias-current control input on external PA.
Supply Voltage for Transmit Driver. Bypass with a capacitor as close to the pin as possible. Do not
share the bypass capacitor ground vias with other branches.
Transmit Gain-Control Input. Analog high-impedance input. Connect directly to baseband IC DAC
output. See the Typical Operating Characteristics for Transmitter Gain vs. Gain-Control Voltage.
Supply Voltage for Transmit Mixer and VGA. Bypass with a capacitor as close to the pin as possible.
Do not share the bypass capacitor ground vias with other branches.
Transmit Negative In-Phase Baseband Input. Analog high-impedance differential input. Connect
directly to baseband IC DAC voltage output. Requires a 1.2V common-mode voltage.
Transmit Positive In-Phase Baseband Input. Analog high-impedance differential input. Connect
directly to baseband IC DAC voltage output. Requires a 1.2V common-mode voltage.
Transmit Positive Quadrature Baseband Input. Analog high-impedance differential input. Connect
directly to baseband IC DAC voltage output. Requires a 1.2V common-mode voltage.
Transmit Negative Quadrature Baseband Input. Analog high-impedance differential input. Connect
directly to baseband IC DAC voltage output. Requires a 1.2V common-mode voltage.
Supply Voltage for Transmit Baseband Filter. Bypass with a capacitor as close to the pin as possible.
Do not share the bypass capacitor ground vias with other branches.
Digital Ground
12
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2820ETM-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 |
| MAX2820ETM-W | 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 |
| MAX2820EVKIT | 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 |
| MAX2821AETM | 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 |
| MAX2821AETM+ | 功能描述:射频接收器 RF and RFID 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 |
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