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參數(shù)資料
| 型號： | MAX2821EGM-TD |
| 廠商： | 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收發(fā)器 |
| 文件頁數(shù)： | 12/23頁 |
| 文件大小： | 392K |
| 代理商： | MAX2821EGM-TD |
M
2.4GHz 802.11b Zero-IF Transceivers
12
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Pin Description
PIN
NAME
DESCRIPTION
1
VCC_LNA
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.
N.C.
VREF
RF_GAIN
No Connection. Not internally connected. (MAX2820 only)
Voltage Reference Output. (MAX2821 only)
LNA Gain Select Logic Input. Logic high for LNA high-gain mode, logic low for LNA low-gain mode.
2
3
4
RX_RFN
Receiver LNA Negative Input. On-chip AC-coupling. Requires off-chip impedance match and
connection to 2:1 balun.
5
RX_RFP
Receiver LNA Positive Input. On-chip AC-coupling. Requires off-chip impedance match and
connection to 2:1 balun.
6
VCC_REF
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.
7
RBIAS
Precision Bias Resistor Pin. Connect a 12k
precision resistor (
≤
2%) to GND.
8
TX_RFP
Transmit Driver Amplifier Positive Output. On-chip pullup choke to V
CC
. Requires off-chip impedance
match and connection to 4:1 balun.
9
TX_RFN
Transmit Driver Amplifier Negative Output. On-chip pullup choke to V
CC
. Requires off-chip
impedance match and connection to 4:1 balun.
10
PA_BIAS
Power-Amplifier Bias-Current Control Signal. Analog output. High-impedance, open-drain current
source. Connect directly to bias-current control input on external PA.
11
VCC_DRVR
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.
12
TX_GC
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.
13
VCC_TMX
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.
14
TX_BBIN
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.
15
TX_BBIP
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.
16
TX_BBQP
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.
17
TX_BBQN
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.
18
VCC_TXF
Supply Voltage for Transmit Baseband Filter. Bypass with capacitor as close to the pin as possible.
Do not share the bypass capacitor ground vias with other branches.
19
GND_DIG
Digital Ground
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX2820-MAX2821 | 2.4GHz 802.11b Zero-IF Transceivers |
| MAX2820EGM-TD | 2.4GHz 802.11b Zero-IF Transceivers |
| MAX2825EVKIT | Evaluation Kits for the MAX2825/MAX2826/MAX2827 |
| MAX2826EVKIT | Evaluation Kits for the MAX2825/MAX2826/MAX2827 |
| MAX2827EVKIT | Evaluation Kits for the MAX2825/MAX2826/MAX2827 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX2821ETM | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2821ETM+ | 功能描述:射頻接收器 2.4GHz 802.11b Zero-If Transceiver RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2821ETM+D | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2821ETM+T | 功能描述:射頻接收器 2.4GHz 802.11b Zero-If Transceiver RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
| MAX2821ETM+TD | 功能描述:射頻接收器 RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel |
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