LTC5599

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30MHz to 1300MHz Low Power Direct Quadrature Modulator

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Part Models
2
1ku List Price
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Part Details

  • Frequency Range: 30MHz to 1300MHz
  • Low Power: 2.7V to 3.6V Supply; 28mA
  • Low LO Carrier Leakage: –51.5dBm at 500MHz
  • Side-Band Suppression: –52.6dBc at 500MHz
  • Output IP3: 20.8dBm at 500MHz
  • Low RF Output Noise Floor: –156dBm/Hz at 6MHz Offset, PRF = 3dBm
  • Sine Wave or Square Wave LO Drive
  • SPI Control:
    • Adjustable Gain: –19dB to 0dB in 1dB Steps Effecting Supply Current from 8mA to 35mA
    • I/Q Offset Adjust: –65dBm LO Carrier Leakage
    • I/Q Gain/Phase Adjust: –60dBc Side-Band Suppressed
  • 24-Lead QFN 4mm × 4mm Package
LTC5599
30MHz to 1300MHz Low Power Direct Quadrature Modulator
90MHz to 1300MHz Direct Conversion Transmitter Application EVM and Noise Floor vs RF Output Power and Digital Gain Setting with 1Ms/s 16-QAM Signal Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 3

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
Baseband Differential Low-Pass Filters 1
LTC6601-2
LAST TIME BUY Low Power, Low Distortion, 5MHz to 27MHz, Pin Configurable Filter/ADC Driver
Fractional-N PLL 1
LTC6948
LAST TIME BUY Ultralow Noise 0.37GHz to 6.39GHz Fractional-N Synthesizer with Integrated VCO
Gain Blocks 1
LTC6431-20
RECOMMENDED FOR NEW DESIGNS 20dB Gain Block, 50Ω IF Amplifier
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Tools & Simulations

LTspice 1

Linduino 3

ADIsimRF

ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

Open Tool
LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

Evaluation Kits

eval board
schematic 1
schematic 2
schematic 3
schematic 4
schematic 5
schematic 6
DC2091A

LTC5599 | 30MHz to 1300MHz Low Power Direct I/Q Modulator - DC590B Serial Board Required

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Product Details

Demonstration circuit 2091A is optimized for evaluation of the LTC5599 low power direct quadrature modulator. The balanced I and Q baseband input ports can be either AC- or DC-coupled to a source with a common mode voltage level of about 1.4V. Fixed LC networks on the LO and RF ports cover a continuous 90MHz to 1300MHz range. The SPI interface controls the supply current, modulator gain, and allows optimization of the LO carrier feedthrough and side-band suppression.
DC2091A
LTC5599 | 30MHz to 1300MHz Low Power Direct I/Q Modulator - DC590B Serial Board Required
DC2091A Demo Board DC2091A Demo Board DC2091A Demo Board DC2091A Demo Board DC2091A - Schematic DC2091A - Demo Board Image

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