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LMH2100 - 用于 CDMA 和 WCDMA 的 50 MHz 至 4 GHz 40 dB 对数功率检测器
LMH2100是TI德州仪器公司的一款无产品,LMH2100是用于 CDMA 和 WCDMA 的 50 MHz 至 4 GHz 40 dB 对数功率检测器,本站介绍了LMH2100的封装应用图解、特点和优点、功能等,并给出了与LMH2100相关的TI元器件型号供参考。
LMH2100 - 用于 CDMA 和 WCDMA 的 50 MHz 至 4 GHz 40 dB 对数功率检测器 - 无 - 射频功率检测器 - 德州仪器
- Supply Voltage: 2.7 V to 3.3 V
- Output Voltage: 0.3 V to 2 V
- 40-dB Linear in dB Power Detection Range
- Shutdown
- Multi-Band Operation from 50 MHz to 4 GHz
- 0.5-dB Accurate Temperature Compensation
- External Configurable Output Filter Bandwidth
- 0.4-mm Pitch DSBGA Package
- UMTS/CDMA/WCDMA RF Power Control
- GSM/GPRS RF Power Control
- PA Modules
- IEEE 802.11b, g (WLAN)
The LMH2100 is a 40-dB RF power detector intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 50 MHz to 4 GHz. It provides an accurate temperature and supply compensated output voltage that relates linearly to the RF input power in dBm. The circuit operates with a single supply from 2.7 V to 3.3 V.
The LMH2100 has an RF power detection range from −45 dBm to −5 dBm, and is ideally suited for direct use in combination with a 30-dB directional coupler. Additional low-pass filtering of the output signal can be realized by means of an external resistor and capacitor. Typical Application: Output RC Low Pass Filter shows a detector with an additional output low pass filter. The filter frequency is set with RS and CS.
Typical Application: Feedback (R)C Low Pass Filter shows a detector with an additional feedback low pass filter. Resistor RP is optional and will lower the Trans impedance gain (RTRANS). The filter frequency is set with CP//CTRANS and RP//RTRANS.
The device is active for Enable = High; otherwise it is in a low power-consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown.
| PART NUMBER | PACKAGE | BODY SIZE (MAX) |
|---|---|---|
| LMH2100 | DSBGA (6) | 1.274 mm × 0.874 mm |
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