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参数资料
| 型号： | MAX2841EVKIT |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Evaluation Kits for the MAX2840/MAX2841 |
| 中文描述： | 评估板的MAX2840/MAX2841 |
| 文件页数： | 3/7页 |
| 文件大小： | 1137K |
| 代理商： | MAX2841EVKIT |
E
MAX2820/MAX2821 Evaluation Kits
_______________________________________________________________________________________
3
SUPPLIER
PHONE
843-448-9411
800-344-4539
770-436-1300
—
FAX
WEBSITE
AVX
Digi-Key
Murata
Texas Instruments
843-448-1943
218-681-3380
770-436-3030
—
www.avx.com
www.digikey.com
www.murata.com
www.ti.com
Component Suppliers
CONTROL MODES
Shutdown
Standby
Transmit
Receive
High gain
Low gain
Enable
Disable
Device in shutdown mode
Device in standby mode
Device in transmit mode
Device in receive mode
Receive LNA in high-gain mode
Receive LNA in low-gain mode
Sets receive highpass corner frequency to 1kHz
Sets receive highpass corner frequency to 10kHz
Operating Mode
LNA Gain
RX_1K
PROGRAM MODES
LO Frequency
Variable
22MHz
44MHz
Variable
Variable
Variable
Sets LO frequency from 2400MHz to 2499MHz
Sets PLL to work with 22MHz crystal oscillator
Sets PLL to work with 44MHz crystal oscillator
Sets charge-pump current between 1mA and 2mA
Sets external power amplifier bias current
Sets receive lowpass corner frequency from 6.0MHz to 8.5MHz
Ref Frequency
CP Current
Power Amp Bias
Receive LPF BW
Table 1. MAX2820/MAX2821 Control Settings
4) Verify that the LO frequency is set to 2437MHz
through the control software.
5) Set the operating mode to “Receive” through the
control software.
6) Measure the power of the 900kHz output tone on the
spectrum analyzer display. Adjust RX_AGC (R2)
between 0V and 2.0V to obtain a baseband output
of -2dBm.
Transmit Mode
To evaluate the MAX2820/MAX2821 in transmit mode:
1) Connect a signal source to TX_BBI (J6). Set the sig-
nal source frequency to 900kHz with an amplitude
of 400mV
P-P
(-4dBm).
2) Connect TX_RF (J1) to the spectrum analyzer. Set
the spectrum analyzer to a center frequency of
2437MHz with a 20MHz span.
3) Verify that the LO frequency is set to 2437MHz
through the control software.
4) Temporarily disable the baseband signal source
output. Set the operating mode to “Transmit”
through the control software. Enable the baseband
signal source output.
5) Measure the amplitude of the upper sideband at
2437.9MHz using the spectrum analyzer. Adjust
TX_GC (R1) to 0V to obtain the maximum RF output.
6) The observed output power should be roughly
-5dBm due to driving only the I channel.
Layout Considerations
The MAX2820/MAX2821 EV kits can serve as guides
for board layout. Keep PC board trace lengths as short
as possible to minimize parasitic inductance. Also,
keep decoupling capacitors as close to the IC as pos-
sible with a direct connection to the ground plane.
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相关代理商/技术参数 |
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| MAX2842ETN+ | 制造商:Maxim Integrated Products 功能描述:3.3-3.9GHZ MIMO WIMAX RF TRANSCEIVER - Rail/Tube |
| MAX2842ETN+T | 制造商:Maxim Integrated Products 功能描述:3.3-3.9GHZ MIMO WIMAX RF TRANSCEIVER - Tape and Reel |
| MAX2850EVKIT+ | 制造商:Maxim Integrated Products 功能描述:EVKIT FOR MAX2850 - Boxed Product (Development Kits) |
| MAX2850ITK+ | 功能描述:射频发射器 5GHZ 4Ch MIMO Transmitter RoHS:否 制造商:Micrel 类型:ASK Transmitter 封装 / 箱体:SOT-23-6 工作频率:300 MHz to 450 MHz 封装:Reel |
| MAX2850ITK+T | 功能描述:射频发射器 5GHZ 4Ch MIMO Transmitter RoHS:否 制造商:Micrel 类型:ASK Transmitter 封装 / 箱体:SOT-23-6 工作频率:300 MHz to 450 MHz 封装:Reel |
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