TRF3701 Datasheet, PDF (1/5 Pages) Texas Instruments – 0.6 GHz to 1.0 GHz QUADRATURE MODULATOR

FEATURES
D Typical Carrier Suppression > 35 dBc
D Large Signal Output
D Differential or Single-Ended Signal Output
D Silicon Germanium Technology
TRF3701
0.6 GHz to 1.0 GHz
QUADRATURE MODULATOR
SLWS145 – FEBRUARY 2003
APPLICATIONS
D Transmit Channel TDMA: GSM, IS-136,
Edge/UMC-136
D CDMA: IS-95, UMTS, CDMA2000
D Wireless Local Loop
D Wireless LAN IEEE 802.11
D LMDS, MMDS
description
The TRF3701 is a low noise quadrature direct modulator that is capable of converting complex input signals
from 0 – 300 MHz up to RF. An internal analog combiner sums the real and imaginary components of the RF
outputs. This combined output can directly feed the RF pre-amp at frequencies of up to 1.0 GHz. The modulator
is implemented as a double balanced mixer. An internal LO phase splitter accommodates a single LO input.
functional block diagram
VCC
IVIN
IREF
LO
50
QVIN
QREF
+45
–45
Σ
RFOUT
PWD ^GND
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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Copyright  2003, Texas Instruments Incorporated
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