LTC5599 Datasheet PDF – Direct Quadrature Modulator

Part Number : LTC5599

Function : 30MHz to 1300MHz Low Power Direct Quadrature Modulator

Package : 24-Lead QFN 4mm × 4mm Type

Manufacturers : Linear Technology, Analog Devices

Pinouts :

LTC5599 datasheet


Description :

The LTC5599 is a direct conversion I/Q modulator designed for low power wireless applications that enable direct modulation of differential baseband I and Q signals on an RF carrier.

Single side-band modulation or side-band suppressed upconversion can be achieved by applying 90° phase-shifted signals to the I and Q inputs.

The I/Q baseband input ports can be either AC or DC coupled to a source with a common mode voltage level of about 1.4V.

Features :

1. Frequency Range : 30MHz to 1300MHz

2. Low Powe r: 2.7V to 3.6V Supply; 28mA

3. Low LO Carrier Leakage : –51.5dBm at 500MHz

4. Side-Band Suppression : –52.6dBc at 500MHz

5. Output IP3 : 20.8dBm at 500MHz


LTC5599 Datasheet PDF Download

LTC5599 pdf

Other data sheets within the file : LTC-5599, LTC5599IUF

AD8345-EVAL Datasheet – RFIC Quadrature Modulator

Part Number : AD8345-EVAL

Function : 140 MHz to 1000 MHz, Quadrature Modulator

Package : 16-lead TSSOP Type

Manufacturers : Analog Devices

Pinouts :

AD8345-EVAL datasheet


Description :

The AD8345 is a silicon RFIC quadrature modulator, designed for use from 140 MHz to 1000 MHz. Its excellent phase accuracy and amplitude balance enable the high performance direct modulation of an IF carrier. The AD8345 accurately splits the external LO signal into two quadrature components through the polyphase phase splitter network. The I and Q LO components are mixed with the baseband I and Q differential input signals. Finally, the outputs of the two mixers are combined in the output stage to provide a single-ended 50 Ω drive at VOUT.


1. 140 MHz to 1000 MHz operating frequency
2. +2.5 dBm P1dB @ 800 MHz
3. −155 dBm/Hz noise floor
4. 0.5 degree RMS phase error (IS95)
5. 0.2 dB amplitude balance
6. Single 2.7 V to 5.5 V supply
7. Pin-compatible with AD8346 and AD8349


1. Cellular communication systems
2. W-CDMA/CDMA/GSM/PCS/ISM transceivers
3. Fixed broadband access systems LMDS/MMDS
4. Wireless LAN
5. Wireless local loop
6. Digital TV/CATV modulators
7. Single sideband upconverter

Other data sheets within the file :



AD8345-EVAL Datasheet PDF Download

AD8345-EVAL pdf