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T0790 Datasheet

700 MHz - 2700 MHz Direct Quadrature Modulator

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T0790 pdf
Features
700 MHz to 2700 MHz Operating Frequency
Very Low Noise Floor Performance
Very Good Sideband and Carrier Suppression
Supports Wideband Baseband Input
Very High Linearity
Very Low LO Leakage
50 Impedance on RF and LO Port
Low LO Drive Requirements
No External IF Filter
Supply Voltage 5 V
Small SSOP16 Package
www.DaAtaSphpeelt4icU.acotmions
Infrastructure Digital Communication Systems
GSM/TDMA/CDMA2000/W-CDMA/UMTS/ISM Band Transceivers
RF Radio Links
Wireless Modem Access Points
High Performance RF Instrumentation
Electrostatic sensitive device.
Observe precautions for handling.
700 MHz -
2700 MHz
Direct
Quadrature
Modulator
T0790
Description
The T0790 is a direct quadrature modulator using Atmel’s Silicon-Germanium (SiGe)
process.
This modulator features a frequency range of 700 to 2700 MHz with excellent carrier
and sideband suppression and a very low noise floor. It operates from a single 5 V
supply and provides -11 dBm of power while requiring only 0 dBm input to the inte-
grated LO driver. An RF and an LO amplifier are also included.
The T0790 incorporates internal matching on each RF, IF and LO port to enhance
ease of use and to reduce the external components required. The LO input can be
driven differentially or single ended.
Figure 1. Block Diagram
Preliminary
BBQ- 16
BBQ+ 1
LO+
LO-
4
5
BBI+
BBI-
8
9
90°
13
RF+
12 RF-
Rev. 4555C–SIGE–11/03
ATMEL Corporation
ATMEL Corporation



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