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LMH6517SQ NOPB
Low Power, Low Noise IF and Baseband Dual 16 bit ADC Driver With Digitally Controlled Gain
GAIN 0-5
200
ADC
½ LMH6517VCC
Gain
Checkfor Samples: LMH6517
1FEATURES DESCRIPTIONThe LMH6517 contains two high performance,
Accurate, 0.5dB Gain Steps digitally controlled variable gain amplifiers (DVGA).It
• 200Ω Resistive, Differential Input has been designed for use in and
Low Impedance, Differential Output broadband IF sampling applications. the
LMH6517 drivesa high performanceina broad
• Disable Function for Each Channel range of mixed signal and digital
• Parallel Gain Control applications such as mobile radio base
• SPI Compatible Serial Bus stations where automatic gain (AGC) is
requiredto increase system dynamic
• Two Wire, Pulse Mode Control On Chip Register Stores Gain Setting Each channel of LMH6517 has
digitally controlled attenuator and linearity,
• Low Sensitivityof Linearity and Phaseto Gain differential output amplifier. Each has been
Setting optimized for low distortion and system
• Single 5V Supply Voltage design flexibility. Each channel individually
Small Footprint WQFN Package disabledfor power savings.
The LMH6517 digitally controlled provides
APPLICATIONS precise 0.5dB gain steps overa 31.5dB range. On
Cellular Base Stations chip digital latches are provided for local storageof
the gain setting. Both serial and parallel programming
• IF Sampling Receivers options are provided.A Pulse modeis also offered
• Instrumentation where simple upor down commands can change the
Modems gain one stepata time.
Imaging The output amplifier hasa differential output allowing
large signal swings ona single 5V supply. The low
KEY SPECIFICATIONS impedance output provides maximum flexibility when
driving filtersor analogto digital converters.
• OIP3: 43dBm@ 200MHzThe LMH6517 operates over the industrial
• Noise figure 5.5dB temperature rangeof −40°Cto +85°C. The LMH6517 is availableina 32-Pin, thermally enhanced, WQFN
0.05dB package.
1200 per channel
