GENERAL DESCRIPTION

The ADL5519 is a dual-demodulating logarithmic amplifier that incorporates two AD8317s. It can accurately convert an RF input signal into a corresponding decibel-scaled output. The ADL5519 provides accurately scaled, independent, logarithmic output voltages for both RF measurement channels. The device has two additional output ports, OUTP and OUTN, that provide the measured differences between the OUTA and OUTB channels. The on-chip channel matching makes the log amp outputs insensitive to temperature and process variations.

FEATURES

Wide bandwidth: 1 MHz to 10 GHz

Dual-channel and channel difference output ports

Integrated accurate scaled temperature sensor

62 dB dynamic range (±3 dB)

>50 dB with ±1 dB up to 8 GHz

Stability over temperature: ±0.5 dB (?40°C to +85°C)

Low noise detector/controller outputs

Pulse response time: 6 ns/8 ns (fall time/rise time)

Supply operation: 3.3 V to 5.5 V @ 60 mA

Fabricated using high speed SiGe process

Small footprint, 5 mm × 5 mm, 32-lead LFCSP

Operating temperature range: ?40°C to +125°C

APPLICATIONS

RF transmitter power amplifier linearization and

gain/power control

Power monitoring in radio link transmitters

Dual-channel wireless infrastructure radios

Antenna VSWR monitor

RSSI measurement in base stations, WLAN, WiMAX, radar

ADL5519屬于開(kāi)發(fā)板，套件，編程器 > 射頻評(píng)估和開(kāi)發(fā)套件，開(kāi)發(fā)板。亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的ADL5519射頻評(píng)估和開(kāi)發(fā)套件，開(kāi)發(fā)板本系列中的產(chǎn)品適用于在已知實(shí)施環(huán)境中，提供能訪(fǎng)問(wèn)射頻相關(guān)器件的功能或者有助于訪(fǎng)問(wèn)該功能。所含的焦點(diǎn)產(chǎn)品范圍從射頻信號(hào)鏈元器件（如放大器和檢測(cè)器）到模塊化收發(fā)器，以及不直接包含焦點(diǎn)產(chǎn)品的適配器硬件，但此類(lèi)硬件可供方便地訪(fǎng)問(wèn)用戶(hù)單獨(dú)提供的特定射頻產(chǎn)品或系列。