LTC5598

LAST TIME BUY

5MHz to 1600MHz High Linearity Direct Quadrature Modulator

Part Models: 2
1ku List Price: Starting From $6.45

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Overview

Frequency Range: 5MHz to 1600MHz
High Output IP3:
- +27.7dBm at 140MHz
- +22.9dBm at 900MHz
Low Output Noise Floor at 6MHz Offset:
- No Baseband AC Input: –161.2dBm/Hz
- P_OUT = 5.5dBm: –160dBm/Hz
Low LO Feedthrough: –55dBm at 140MHz
High Image Rejection: –50.4dBc at 140MHz
Integrated LO Buffer and LO Quadrature Phase Generator
50Ω Single-Ended LO and RF Ports
>400MHz Baseband Bandwidth
24-Lead QFN 4mm × 4mm Package
Pin-Compatible with Industry Standard Pin-Out
Shut-down Mode

The LTC5598 is a direct I/Q modulator designed for high performance wireless applications, including wireless infrastructure. It allows direct modulation of an RF signal using differential baseband I and Q signals. It supports point-to-point microwave link, GSM, EDGE, CDMA, 700MHz band LTE, CDMA2000, CATV applications and other systems. It may also be conﬁgured as an image reject upconverting mixer, by applying 90° phase-shifted signals to the I and Q inputs.

The I/Q baseband inputs consist of voltage-to-current converters that in turn drive double-balanced mixers. The outputs of these mixers are summed and applied to a buffer, which converts the differential mixer signals to a 50Ω single-ended buffered RF output. The four balanced I and Q baseband input ports are intended for DC coupling from a source with a common-mode voltage level of about 0.5V. The LO path consists of an LO buffer with single-ended or differential inputs, and precision quadrature generators that produce the LO drive for the mixers. The supply voltage range is 4.5V to 5.25V, with about 168mA current.

Applications

Point-to-Point Microwave Link
Military Radio
Basestation Transmitter GSM/EDGE/CDMA2K
700MHz LTE Basestation Transmitter
Satellite Communication
CATV/Cable Broadband Modulators
13.56MHz/UHF RFID Modulator

Part Models: 2
1ku List Price: Starting From $6.45

Documentation

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.

Part Model	Pin/Package Drawing	Documentation	CAD Symbols, Footprints, and 3D Models
LTC5598IUF#PBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys
LTC5598IUF#TRPBF	24-Lead QFN (4mm x 4mm x 0.75mm w/ EP)	Material Declaration Reliablity Data Package Resources	Ultra Librarian SamacSys

Part Models	Product Lifecycle	PCN

Mar 20, 2024 - 23_0089 Obsolescence of Tower Fab3 (JAZZ-3) SBC35 Process
		PDN23_0089_Form Material_Report
LTC5598IUF#PBF
LTC5598IUF#TRPBF

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

Software Resources

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Hardware Ecosystem

Parts	Product Life Cycle	Description
Phase-Locked Loop (PLL) Synthesizers 1
LTC6946	LAST TIME BUY	Ultralow Noise and Spurious 0.37GHz to 6.39GHz Integer-N Synthesizer with Integrated VCO
RF Mixers 1
LT5579	PRODUCTION	1.5GHz to 3.8GHz High Linearity Upconverting Mixer

Tools & Simulations

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.

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