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LMV221SD/NOPB +BOM

RF Detector IC Cellular, CDMA, CDMA2000, EDGE, GSM, GPRS, TDMA, W-CDMA 50MHz ~ 3.5GHz -45dBm ~ 5dBm ±0.5dB 6-WDFN Exposed Pad

Manufacturer:

Texas Instruments, Inc
Mfr.Part #:

LMV221SD/NOPB
Datasheet:

LMV221SD/NOPB Datasheet (PDF)
Frequency:

50MHz ~ 3.5GHz
RF Type:

Cellular, CDMA, CDMA2000, EDGE, GSM, GPRS, TDMA, W-CDMA
Input Range:

-45dBm ~ 5dBm
Accuracy:

±0.5dB
EDA/CAD Models:

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LMV221SD/NOPB General Description

The LMV221 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 3.5 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 LMV221 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 achieved by means of an external resistor and capacitor. shows a detector with an additional output low pass filter. The filter frequency is set with R_S and C_S.

shows a detector with an additional feedback low pass filter. Resistor R_P is optional and lowers the trans-impedance gain (R_TRANS). The filter frequency is set with C_P//C_TRANS and R_P//R_TRANS.

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.

For all available packages, see the orderable addendum at the end of the data sheet.

Key Features

2.7-V to 3.3-V Supply Voltage
40-dB Linear in dB Power Detection Range
0.3-V to 2-V Output Voltage Range
Shutdown
Multi-Band Operation from 50 MHz to 3.5 GHz
0.5-dB Accurate Temperature Compensation
External Configurable Output Filter Bandwidth
2.5 mm × 2.2 mm × 0.8 mm 6-pin WSON Package

Specifications

Category	RF and WirelessRF Detectors	Series	-
Frequency	50MHz ~ 3.5GHz	RF Type	Cellular, CDMA, CDMA2000, EDGE, GSM, GPRS, TDMA, W-CDMA
Input Range	-45dBm ~ 5dBm	Accuracy	±0.5dB
Voltage - Supply	2.7V ~ 3.3V	Current - Supply	10 mA
Mounting Type	Surface Mount	Base Product Number	LMV221