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参数资料
| 型号： | MAX2233EEE |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 衰减器 |
| 英文描述： | 900MHz ISM-Band, 250mW Power Amplifiers with Analog or Digital Gain Control |
| 中文描述： | 800 MHz - 1000 MHz RF/MICROWAVE NARROW BAND MEDIUM POWER AMPLIFIER |
| 封装： | PLASTIC, QSOP-16 |
| 文件页数： | 7/8页 |
| 文件大小： | 156K |
| 代理商： | MAX2233EEE |
___________________________MAX 2233
Digital Gain Control
and Power Management
The MAX2233 responds to logic-level signals at the
device’s 2-bit DAC inputs, D0 and D1, placing the
device in shutdown mode or into one of three discrete
output power levels. See Table 2 for operating modes
and output power levels. Setting D0 and D1 to a logic-
level low places the device in shutdown mode and
reduces supply current to 0.2μA. The VGA, driver, and
output stage are off in shutdown mode, while the input
impedance is only slightly changed. Setting D0 and D1
to one of the other three modes adjusts the output
power to one of three discrete levels in 10dB steps.
T hermal S hutdown
The MAX2232/MAX2233 feature a thermal shutdown
mode that helps to protect the device from damage
when the die temperature becomes excessive. If the
temperature of the die exceeds the thermal shutdown
temperature, T
TH
, the VGA is forced into a low-gain
mode and output power is reduced to a minimum. After
the PA’s die temperature drops below T
TH
, the device
remains in thermal shutdown mode for the thermal shut-
down timeout period, t
TH
. A single capacitor, C
TSET
,
from TSET to ground sets t
TH
. The thermal shutdown
timeout period helps to limit device thermal cycling that
results if the source of the excessive temperature is not
removed. t
TH
is set by the value of C
TSET
.
Applic ations Information
Proper attention to voltage supply bypassing is essen-
tial for high-frequency RF circuit stability. Bypass V
CC
with 0.1μF, 10nF, and 100pF capacitors in parallel with
each other to ground. Use separate vias to the ground
plane for each of the bypass capacitors and minimize
trace length to reduce inductance. Use separate vias to
the ground plane for each ground pin. Use low-induc-
tance ground connections.
Decouple
SHDN
, CTRL, D0, and D1 with 0.1μF capaci-
tors to ground to minimize noise on the internal bias cell.
Use a series resistor (typically 100
) to further reduce
coupling of high-frequency signals into the control pins.
M
900MHz IS M-Band, 250mW Power Amplifiers
with Analog or Digital Gain Control
_______________________________________________________________________________________
7
MODE
Standby
> 2.0V
< 0.6V
V
SHDN
V
CTRL
X
≤
0.4V
OUTPUT POWER
(P
RFIN
= 0dBm,
V
CC
= +3.6V)
< -35dBm
< -35dBm
Variable Gain
> 2.0V
0.6V
≤
V
CTRL
< 2.2V
> 2.2V
0dBm to +24dBm
Maximum Gain
X = Don’t care
> 2.0V
+24 dBm
Shutdown
Table 1. MAX2232 Operating Modes
Table 2. MAX2233 Operating Modes
Truth Table
MODE
Shutdown
Low Power
Medium Power
High Power
0
1
1
0
D1
D0
0
1
0
1
OUTPUT POWER
(P
RFIN
= 0dBm,
V
CC
= +3.6V)
< -35dBm
+6.5dBm
+15dBm
+24dBm
Func tional Diagrams
MAX2232
VGA
DRIVER
TEMP
SENSOR
RFOUT
TSET
2
16
15
5, 6
7, SLUG
GND
8
10
SHDN
RAMP+
RAMP-
14
3
11
4
12
1
13
V
CC
CTRL
V
CC
RFIN
BIAS
GND
V
CC
GND
GND
TSET
MAX2233
VGA
DRIVER
TEMP
SENSOR
RFOUT
2
16
15
5, 6
7, SLUG
GND
10
D0
D1
4
3
11
12
1
V
CC
V
CC
RFIN
BIAS
GND
V
CC
GND
GND
8
2-BIT
DAC
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX2233EEE+ | 功能描述:射频放大器 900MHz ISM-Band 250mW Power Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2233EEE+T | 功能描述:射频放大器 900MHz ISM-Band 250mW Power Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2233EEE-T | 功能描述:射频放大器 900MHz ISM-Band 250mW Power Amp RoHS:否 制造商:Skyworks Solutions, Inc. 类型:Low Noise Amplifier 工作频率:2.3 GHz to 2.8 GHz P1dB:18.5 dBm 输出截获点:37.5 dBm 功率增益类型:32 dB 噪声系数:0.85 dB 工作电源电压:5 V 电源电流:125 mA 测试频率:2.6 GHz 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:QFN-16 封装:Reel |
| MAX2233EVKIT | 功能描述:放大器 IC 开发工具 MAX2233 Eval Kit RoHS:否 制造商:International Rectifier 产品:Demonstration Boards 类型:Power Amplifiers 工具用于评估:IR4302 工作电源电压:13 V to 23 V |
| MAX2235 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Evaluation Kit |
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