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参数资料
| 型号： | MAX2820EGM-TD |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | 2.4GHz 802.11b Zero-IF Transceivers |
| 中文描述： | 基于2.4GHz 802.11b零IF收发器 |
| 文件页数： | 13/23页 |
| 文件大小： | 392K |
| 代理商： | MAX2820EGM-TD |
M
2.4GHz 802.11b Zero-IF Transceivers
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13
Pin Description (continued)
PIN
NAME
DESCRIPTION
20
VCC_DIG
Supply Voltage for Digital Circuitry. Bypass with capacitor as close to the pin as possible. Do not
share the bypass capacitor ground vias with other branches.
21
N.C.
No Connection. Not internally connected.
22
ROSCP
Reference Oscillator Positive Input. Analog, high-impedance differential input. DC-coupled. Requires
external AC-coupling. Connect an external reference oscillator to this analog input.
23
ROSCN
Reference Oscillator Negative Input. Analog, high-impedance differential input. DC-coupled.
Requires external AC-coupling. Bypass this analog input to ground with capacitor for single-ended
operation.
24
DIN
3-Wire Serial Interface Data Input. Digital, high-impedance input. Connect directly to baseband IC
serial interface CMOS output. (SPI/QSPI/MICROWIRE compatible)
25
SCLK
3-Wire Serial Interface Clock Input. Digital, high-impedance input. Connect this digital input directly to
baseband IC serial interface CMOS output. (SPI/QSPI/MICROWIRE compatible).
26
CSB
3-Wire Serial Interface Enable Input. Digital, high-impedance input. Connect directly to baseband IC
serial interface CMOS output. (SPI/QSPI/MICROWIRE compatible)
27
VCC_CP
Supply Voltage for PLL Charge Pump. Bypass with capacitor as close to the pin as possible. Do not
share the bypass capacitor ground vias with other branches.
28
CP_OUT
PLL Charge-Pump Output. Analog, high-impedance output. Current source. Connect directly to the
PLL loop filter input.
29
30
GND_CP
GND_VCO
PLL Charge-Pump Ground. Connect to PC board ground plane.
VCO Ground. Connect to PC board ground plane.
31
TUNE
VCO Frequency Tuning Input. Analog voltage input. High impedance. Connect directly to the PLL
loop filter output.
32
BYP
VCO Bias Bypass Pin. Bypass with a 2000pF capacitor to ground.
33
VCC_VCO
Supply Voltage for VCO. Bypass with capacitor as close to the pin as possible. Do not share the
bypass capacitor ground vias with other branches.
Important note:
Operate off separate regulated
supply voltage.
34
VCC_LO
Supply Voltage for VCO, LO Buffers, and LO Quadrature Circuitry. Bypass with capacitor as close to
the pin as possible. Do not share the bypass capacitor ground vias with other branches.
35
VCC_RXF
Supply Voltage for Receiver Baseband Filter. Bypass with capacitor as close to the pin as possible.
Do not share the bypass capacitor ground vias with other branches.
36
SHDNB
Active Low Shutdown Input. Digital CMOS input. High impedance. Connect directly to baseband IC
mode control CMOS output. Logic low to disable all device functions. Logic high to enable normal
chip operation.
37
DOUT
Serial Interface Data Output
.
Digital CMOS output. Optional connection.
38
RX_1K
Receiver 1kHz Highpass Bandwidth Control. Digital CMOS input. Connect directly to baseband IC
CMOS output. Controls receiver baseband highpass -3dB corner frequency; logic low for 10kHz,
logic high for 1kHz. See the
Applications Information
section for proper use of this function.
SPI and QSPI are trademarks of Motorola, Inc.
MICROWIRE is a trademark of National Semiconductor Corp.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2820ETM | 功能描述:射频接收器 2.4GHz 802.11b Zero-If Transceiver 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+ | 功能描述:射频接收器 2.4GHz 802.11b Zero-If Transceiver 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+D | 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+T | 功能描述:射频接收器 2.4GHz 802.11b Zero-If Transceiver 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+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 |
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