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AD8349

Features: Output frequency range: 700 MHz to 2700 MHz Modulation bandwidth: dc to 160 MHz (large signal BW) 1 dB output compression: 5.6 dBm @ 2140 MHz Output disable function: output below 50 dBm in < 50 ns Noise floor: 156 dBm/Hz Phase quadrature error: 0.3 degrees @ 2140 MHz Amplitude balanc...

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SeekIC No. : 004272188 Detail

AD8349: Features: Output frequency range: 700 MHz to 2700 MHz Modulation bandwidth: dc to 160 MHz (large signal BW) 1 dB output compression: 5.6 dBm @ 2140 MHz Output disable function: output below 50 dBm i...

AD8349 Data Sheet

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Part Number:
AD8349
Supply Ability:
5000

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  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2025/12/26

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Product Details

Description



Features:

Output frequency range: 700 MHz to 2700 MHz
Modulation bandwidth: dc to 160 MHz (large signal BW)
1 dB output compression: 5.6 dBm @ 2140 MHz
Output disable function: output below 50 dBm in < 50 ns
Noise floor: 156 dBm/Hz
Phase quadrature error: 0.3 degrees @ 2140 MHz
Amplitude balance: 0.1 dB
Single supply: 4.75 V to 5.25 V
Pin compatible with AD8345/AD8346
16-lead exposed-paddle TSSOP package




Application

Cellular/PCS communication systems infrastructure
WCDMA/CDMA2000/PCS/GSM/EDGE
Wireless LAN/wireless local loop
LMDS/broadband wireless access systems




Pinout

AD8349 Diagram

Connection Diagram




Specifications

Function Mod
RF Freq (MHz) 700 to 2700
IQ Freq (MHz) 160MHz
Phase Error (deg) 0.3Deg
Amplitude Error (dB) 0.1dB
Noise Floor (dBm/Hz) -156
Voltage Supply (V) 5
Supply Current 135mA
Package 16-Lead Tssop


ParameterRating
Supply Voltage VPOS 5.5 V
IBBP, IBBN, QBBP, QBBN 0V, 2.5 V
LOIP and LOIN 10 dBm
Internal Power Dissipation800 mW
JA (Exposed Paddle Soldered Down) 30°C/W
Maximum Junction Temperature 125°C
Operating Temperature Range −40°C to +85°C
Storage Temperature Range −65°C to +150°C




Description

The AD8349 is a silicon, monolithic, RF quadrature modulator that is designed for use from 700 MHz to 2700 MHz. Its excellent phase accuracy and amplitude balance enable high performance direct RF modulation for communication systems.

The differential LO input signal of AD8349 is buffered, and then split into an in-phase (I) signal and a quadrature-phase (Q) signal using a polyphase phase splitter. These two LO signals are further buffered and then mixed with the corresponding I channel and Q channel baseband signals in two Gilbert cell mixers. The mixers' outputs are then summed together in the output amplifier. The output amplifier is designed to drive 50 Ω loads.






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