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3.3GHz to 3.9GHz
Wireless Broadband RF Transceiver
DC ELECTRICAL CHARACTERISTICS (continued)
(MAX2838 Evaluation Kit, V CC _ = 2.7V to 3.6V, T A = -40°C to +85°C, ENABLE and RXTX set according to operating mode, CS =
high, SCLK = DIN = low, transmitter and receiver in maximum gain, no input signal at RF inputs, all RF inputs and outputs terminated
into 50 Ω , receiver baseband outputs are open. 90mV RMS differential I and Q signals (1MHz) applied to I and Q baseband inputs of
transmitter in transmit mode, all registers set to recommended settings and corresponding test mode, unless otherwise noted.
Typical values are at V CC = 2.8V, f LO = 3.6GHz, and T A = +25°C, unless otherwise noted.) (Note 1)
PARAMETERS
CONDITIONS
MIN
TYP
MAX
UNITS
Tx Baseband Input Common-
Mode Voltage Operating Range
Tx Baseband Input Bias Current
DC-coupled
Source current
0.5
8
1.2
20
V
μA
LOGIC INPUTS: ENABLE, RXTX, SCLK, DIN, CS , B1:B7, RXHP
Digital Input Voltage High, V IH
Digital Input Voltage Low, V IL
V CC - 0.4
0.4
V
V
Digital Input Current High, I IH
Digital Input Current Low, I IL
-1
-1
+1
+1
μA
μA
LOGIC OUTPUTS: DOUT
Digital Output Voltage High, V OH
Digital Output Voltage Low, V OL
Sourcing 100μA
Sinking 100μA
V CC - 0.4
0.4
V
V
AC ELECTRICAL CHARACTERISTICS—Rx MODE
(MAX2838 Evaluation Kit, V CC _ = 2.8V, T A = +25°C, f LO = 3.6GHz, f RF = 3.601GHz, receiver baseband I/Q outputs at 90mV RMS , f REF
= 40MHz, CS = ENABLE = RXTX = high, SCLK = DIN = low, channel bandwidth BW = 7MHz, with power matching for the RF inputs
using the typical applications and registers set to default settings and corresponding test mode, unless otherwise noted.
Unmodulated single-tone RF input signal is used with specifications that normally apply over the entire operating conditions, unless
otherwise indicated. Rx I/Q differential output load impedance = 10k Ω || 8pF.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RECEIVER SECTION: LNA RF INPUT TO BASEBAND I/Q OUTPUTS
RF Input Frequency Range
Peak-to-Peak Gain Variation over
RF Input Frequency Range
RF Input Return Loss
Tested at band edges and band center
All LNA settings
3.3
1.8
10
3.9
GHz
dB
dB
Total Voltage Gain
T A = -40°C to +85°C
Maximum gain, B7:B1 = 0000000
Minimum gain, B7:B1 = 1111111
88
98
5
10
dB
From max RF gain to max RF Gain - 8dB
8
RF Gain Steps
Gain Change Settling Time
Baseband Gain Range
Baseband Gain Minimum Step Size
From max RF gain to max RF gain - 16dB
From max RF gain to max RF gain - 32dB
Any RF or baseband gain change; gain settling to within
±1dB of steady state; RXHP = 1
Any RF or baseband gain change; gain settling to within
±0.1dB of steady state; RXHP = 1
From maximum baseband gain (B5:B1 = 00000) to minimum
baseband gain (B5:B1 = 11111)
16
32
200
500
62
2
dB
ns
dB
dB
_______________________________________________________________________________________
3
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MAX2839ASEWO+T 功能描述:射频收发器 MAX2557A Eval Kit 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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MAX2839ETN+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
MAX2839ETN+T 功能描述:射频收发器 2.3-2.7GHz Wireless Broadband RF Txr 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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