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AD8315ACP-REEL +BOM

RF Detector 100MHz to 2500MHz 8-Pin LFCSP EP T/R

Hersteller:

Analog Devices, Inc
Herstellerteil #:

AD8315ACP-REEL
Datenblatt:

AD8315ACP-REEL Datenblatt (PDF)
place:

Republic of Korea
launch_date:

Oct 1, 1999
last_inspection_date:

02 MAY 2023
supplier_cage_code:

24355
EDA/CAD Modelle:

Fordern Sie kostenlose CAD-Modelle für an AD8315ACP-REEL

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

AD8315ACP-REEL Allgemeine Beschreibung

The AD8315 is a complete low cost subsystem for the precisecontrol of RF power amplifiers operating in the frequency range0.1 GHz to 2.5 GHz and over a typical dynamic range of 50 dB.It is intended for use in cellular handsets and other batteryoperatedwireless devices. The log amp technique provides a muchwider measurement range and better accuracy than controllersusing diode detectors. In particular, the temperature stability isexcellent over a specified range of −30°C to +85°C.

Its high sensitivity allows control at low signal levels, thusreducing the amount of power that must be coupled tothe detector.

For convenience, the signal is internally ac-coupled. Thishigh-pass coupling, with a corner at approximately 0.016 GHz,determines the lowest operating frequency. Therefore, thesource can be dc grounded.

The AD8315 provides a voltage output, VAPC, that has thevoltage range and current drive to directly connect to mosthandset power amplifiers’ gain control pin. VAPC can swingfrom 250 mV above ground to within 200 mV below the supplyvoltage. Load currents of up to 6 mA can be supported.

The setpoint control input is applied to the VSET pin and hasan operating range of 0.25 V to 1.4 V. The associated circuitdetermines the slope and intercept of the linear-in-dBmeasurement system; these are nominally 23 mV/dB and−60 dBm for a 50 Ω termination (−73 dBV) at 0.9 GHz.Further simplifying the application of the AD8315, the inputresistance of the setpoint interface is over 100 MΩ, and the biascurrent is typically 0.5 μA.

The AD8315 is available in MSOP and LFCSP packages andconsumes 8.5 mA from a 2.7 V to 5.5 V supply. When powereddown, the sleep current is 4 μA.

Hauptmerkmale

Complete RF detector/controller function
Accurate scaling from 0.1 GHz to 2.5 GHz
Temperature-stable linear-in-dB response
Log slope of 23 mV/dB, intercept at -60 dBm at 0.9 GHz
True integration function in control loop
Low power: 20 mW at 2.7 V, 38 mW at 5 V
Power-down to 10.8 µW

Anwendung

Single, dual, and triple band mobile handset (GSM, DCS, EDGE)
Transmitter power control

Spezifikationen

place	Republic of Korea	launch_date	Oct 1, 1999
last_inspection_date	02 MAY 2023	supplier_cage_code	24355
htsusa	8542390001	schedule_b	8542390000
ppap	False	aec	False

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