1. Linear Technology Corporation
LTC5586: An Ultra-Wideband, 6GHz High Linearity I/Q Demodulator

2. LTC5586: Ultra-Wideband I/Q Demodulator
New
LTC5586: Ultra-Wideband I/Q Demodulator
Features
True Zero-IF Bandwidth: DC to 1GHz (1dB Flatness)
Integrated IF Amplifier with 8 Gain Settings
RF Attenuator 0-31dB, 1dB Step
2 Channel SPDT RF switch, 40dB Isolation
4-wire SPI Serial Bus Control: - Image Reject (IQ gain/phase balance) - IIP2 & IIP3 adjust - HD2 & HD3 adjust - DC offset null - RF & LO Frequency Match Tuning
- Attenuator & RF switch control
- IF Gain Control
Fast 100ns Switched RF Inputs
Wide-Band Matched RF Input: - No ext. matching MHz - Ext. capacitor for MHz
Small Footprint: 5x5mm QFN-32 Leads
Performance
DEMOD
AMP
Unit
RF & LO Range
300 – 6000
MHz
IF BW (-1dB)
1.0
GHz
Power Conv. Gain
-21.8 to +8 dB
IIP3
+30
+32
dBm
OIP2 (Adjusted)
+80
Noise Figure (DSB)
19.5
8.6
Image Rejection
42 (60 optimized)
dBc
LO-RF Leakage
-56
Switch: controlled through SPI or separate logic pin, or both ?
Switch isolation 25-40dB; is that enough ?
LO frequency needs to be programmed through SPI to optimize quadrature phase splitter performance – acceptable ?

3. LTC5586 – Designed to Address Very Wideband Receivers Performance and 5G Wireless Needs
>1GHz RF Bandwidth
Higher Frequency (3.6GHz & 5.8GHz) Bands
True Zero IF – Reduce ADC Sampling Rates Requirements
Multiband Capable Supporting Carrier Aggregation

4. Two Channel Wideband DPD Receiver Boosts Transmit RF PA Efficiency & Spectral Purity

5. LTC5586 Excellent Linearity and Gain Performance Over Frequency

6. Unprecedented Image Rejection Performance
Greatly Reduces DSP/FPGA Resources
Uncalibrated
Calibrated

7. Superb OIP2 Improves Receiver Performance & Simplifies Calibration
Uncalibrated
Calibrated

8. The Value We Provide
Innovative, High Performance Value-Added Solutions
Expert Worldwide Technical Support
Exceptional Quality and Reliability
Dependable Delivery
The value we deliver our customers is not only innovative, high performance products but also outstanding support throughout their products’ life cycle. We provide solutions that offer outstanding performance and price trade offs and we provide the best technical support worldwide. In addition, we provide industry leading quality and reliability which allows us to support the most demanding applications such as automotive, industrial and the military / space market. And finally we have the industries shortest lead times and most dependable delivery performance. I will explain how we are able to provide this support in more detail later in the presentation.