T0790

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 Ω Impedance on RF and LO Port Low LO Drive Requirements No External IF Filter Supply Voltage 5 V Small SSOP16 Package www.DataSheet4U.com Applications Infrastructure Digital Communication Systems GSM/TDMA/CDMA2000/W-CDMA/UMTS/ISM Band Transceivers RF Radio Links Wireless Modem Access Points High Performance RF Instrumentation 700 MHz 2700 MHz Direct Quadrature Modulator T0790 Preliminary Electrostatic sensitive device. Observe precautions for handling. 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 integrated 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 16 1 BBQBBQ+ LO+ LO- 4 5 0° 90° 13 12 RF+ RF- BBI+ BBI- 8 9 Rev. 4555C–SIGE–11/03 Pin Configuration Figure 2. Pinning SSOP16 BBQ+ VCC GND LO+ LOGND /SD BBI+ ww...