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参数资料
| 型号： | MAX2820ETM+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 3/26页 |
| 文件大小： | 0K |
| 描述： | IC TXRX 802.11B 2.4GHZ 48-TQFN |
| 标准包装： | 2,500 |
| 频率： | 2.4GHz ~ 2.5GHz |
| 数据传输率 - 最大： | 11Mbps |
| 调制或协议： | 802.11 b |
| 应用： | ISM |
| 功率 - 输出： | 3dBm |
| 灵敏度： | -97dBm |
| 电源电压： | 2.5 V ~ 5.5 V |
| 电流 - 接收： | 80mA |
| 电流 - 传输： | 70mA |
| 数据接口： | PCB，表面贴装 |
| 天线连接器： | PCB，表面贴装 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 48-WFQFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
2.4GHz 802.11b Zero-IF Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(MAX2820/MAX2821 EV kit: V CC = +2.7V to +3.6V, RF_GAIN = V IH , 0V ≤ V TX_GC ≤ +2.0V, 0V ≤ V RX_AGC ≤ +2.0V, RBIAS = 12k ? , no
input signals at RF and baseband inputs, all RF inputs and outputs terminated into 50 ? , receiver baseband outputs are open, trans-
mitter baseband inputs biased at +1.2V, registers set to default power-up settings, T A = -40 ° C to +85 ° C, unless otherwise noted.
Typical values are at V CC = +2.7V, T A = +25 ° C, unless otherwise noted.) (Note 1)
PARAMETERS
CONDITIONS
MIN
TYP
MAX
UNITS
TX BASEBAND I/O
TX BB Input Common-Mode
Range
TX BBI and BBQ Input Bias
Current
TX BB Input Impedance
TX_GC Input Bias Current
TX_GC Input Impedance
Differential resistance
0V ≤ V TX_GC ≤ +2.0V
Resistance
1.0
1.2
-10
100
10
250
1.4
V
μA
k ?
μA
k ?
REFERENCE OSCILLATOR INPUT
Reference Oscillator Input
Impedance
20
k ?
AC ELECTRICAL CHARACTERISTICS—RECEIVE MODE
(MAX2820/MAX2821 EV kit: V CC = +2.7V to +3.6V, f RF and f LO = 2400MHz to 2499MHz, f OSC = 22MHz or 44MHz, receive baseband
outputs = 500mV P-P , SHDNB = RX_ON = V IH , TX_ON = V IL , CSB = V IH , SCLK = DIN = V IL , RF_GAIN = V IH , 0V ≤ V RX_AGC ≤ +2.0V,
RBIAS = 12k ? , I CP = +2mA, BW PLL = 45kHz, differential RF input matched to 50 ? , registers set to default power-up settings, T A =
+25 ° C, unless otherwise noted. Typical values are at V CC = +2.7V, f LO = 2437MHz, f OSC = 22MHz, unless otherwise noted.) (Note 1)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
RECEIVER CASCADE PERFORMANCE (RF INPUT TO BASEBAND OUTPUT)
RF Frequency Range
LO Frequency Range
2400
2400
2499
2499
MHz
MHz
RF_GAIN = V IH ,
V RX_AGC = 0V
T A = +25 ° C
T A = -40 ° C to +85 ° C
97
95
105
Voltage Gain (Note 2)
RF_GAIN = V IH ,
V RX_AGC = +2.0V
RF_GAIN = V IL ,
V RX_AGC = 0V
RF_GAIN = V IL ,
V RX_AGC = +2.0V
T A = +25 ° C
T A = +25 ° C
T A = +25 ° C
33
75
2
dB
RF Gain Step
DSB Noise Figure (Note 3)
Adjacent Channel Rejection
Input Third-Order Intercept Point (Note 5)
Input Second-Order Intercept Point (Note 6)
From RF_GAIN = V IH to RF_GAIN =V IL
RF_GAIN = V IH , RX gain ≥ 80dB
RF_GAIN = V IH , RX gain = 50dB
RF_GAIN = V IL , RX gain = 50dB
RX gain = 70dB (Note 4)
RF_GAIN = V IH , RX gain = 80dB
RF_GAIN = V IL , RX gain = 50dB
RF_GAIN = V IH , RX gain = 80dB
RF_GAIN = V IL , RX gain = 50dB
30
3.5
4.5
34
49
-14
18
22
60
dB
dB
dB
dBm
dBm
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