2.3GHz to 2.7GHz Wireless
Broadband RF Transceiver
Typical Operating Characteristics (continued)
(MAX2837 evaluation kit: V CC_ = 2.8V, f LO = 2.5GHz, 10MHz channel 16E UL/DL WiMax signal, f REF = 40MHz, ENABLE =
CS = high, RXHP = SCLK = DIN = low, T A = +25°C, unless otherwise noted.)
Rx RSSI STEP RESPONSE
0
INPUT RETURN LOSS vs. RF FREQUENCY
3.0
RSSI VOLTAGE vs. INPUT POWER
(+40dB SIGNAL STEP)
MAX2837 toc11
-10
LNA = MAX - 32dB
2.5
CW TONE
LNA = MAX
3V
2.0
LNA = MAX - 8dB
-20
-30
LNA = MAX - 8dB,
LNA = MAX - 16dB
1.5
1.0
LNA = MAX - 16dB
0V
1.45V
-40
LNA = MAX
0.5
0
LNA = MAX - 32dB
0.45V
2.0
2.2
2.4 2.6 2.8
3.0
-120
-100
-80 -60 -40 -20
0
200ns/div
RF FREQUENCY (GHz)
Rx RSSI STEP RESPONSE
INPUT POWER (dBm)
(-40dB SIGNAL STEP)
MAX2837 toc12
350
Rx LPF GROUP DELAY vs. FREQUENCY
78
HISTOGRAM: Rx STATIC DC OFFSET
3V
300
250
CHANNEL BW = 5MHz
CHANNEL BW = 8MHz
CHANNEL BW = 9MHz
65
52
MEAN: 0mV
STD: 0.977mV
SAMPLE SIZE: 1006
200
0V
1.5V
0.45V
150
100
50
CHANNEL BW = 10MHz
39
26
13
200ns/div
0
0
2
4
6 8 10 12
14
16
0
1 σ /div
FREQUENCY (MHz)
150
Tx CURRENT vs. SUPPLY VOLTAGE
1
Tx OUTPUT POWER vs. RF FREQUENCY
145
140
T A = +85 ° C
T A = +25 ° C
0
-1
V CC = 3V, 3.6V
V CC = 2.7V
-2
T A = -40 ° C
135
-3
2.7
3.0 3.3
3.6
2.3
2.4 2.5 2.6
2.7
SUPPLY VOLTAGE (V)
RF FREQUENCY (GHz)
______________________________________________________________________________________
11
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相关代理商/技术参数
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MAX2838ETM+T 功能描述:射频收发器 3.3-3.8GHz 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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