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U2790B-FP

Description
Modulator, Quadraphase, 100MHz Min, 1000MHz Max
CategoryWireless rf/communication    Radio frequency and microwave   
File Size219KB,15 Pages
ManufacturerAtmel (Microchip)
Download Datasheet Parametric View All

U2790B-FP Overview

Modulator, Quadraphase, 100MHz Min, 1000MHz Max

U2790B-FP Parametric

Parameter NameAttribute value
Reach Compliance Codeunknown
Characteristic impedance50 Ω
structureCOMPONENT
modulation technologyQUADRAPHASE
Maximum operating frequency1000 MHz
Minimum operating frequency100 MHz
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
RF/Microwave Device TypesMODULATOR
Maximum voltage standing wave ratio2
Base Number Matches1
Features
Supply Voltage 5 V (Typically)
Very Low Power Consumption: 150 mW (Typically) for -1 dBm Output Level
Very Good Sideband Suppression by Means of Duty Cycle Regeneration of the LO
Input Signal
Phase Control Loop for Precise 90° Phase Shifting
Power-down Mode
Low LO Input Level: -10 dBm (Typically)
50-W Single-ended LO and RF Port
LO Frequency from 100 MHz to 1 GHz
SO16 Package01/03
Benefits
No External Components Required for Phase Shifting
Adjustment Free, Hence Saves Manufacturing Time
Only Three External Components Necessary, this Results in Cost and Board Space
Saving
1000-MHz
Quadrature
Modulator
U2790B
Electrostatic sensitive device.
Observe precautions for handling.
Description
The U2790B is a 1000-MHz quadrature modulator using Atmel´s advanced UHF pro-
cess. It features a frequency range from 100 MHz up to 1000 MHz, low current
consumption, and single-ended RF and LO ports. Adjustment-free application makes
the direct converter suitable for all digital radio systems up to 1000 MHz, e.g., GSM,
ADC, JDC.
Figure 1.
Block Diagram
S
PU
BB
AI
BB
AI
8
7
6
Power
up
PU
1
V
S
5,4
LO
i
Ph
adj
BB
Bi
BB
BI
12
15
16
9
10
Duty cycle
regenerator
Frequency
doubler
90°
90°/control
loop
S
RF
O
3
2,11,13,14
GND
Rev. 4583A–CELL–01/03
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