TQ5131 Datasheet, PDF (1/14 Pages) TriQuint Semiconductor – 3V Cellular Band CDMA/AMPS RFA/Mixer IC

WIRELESS COMMUNICATIONS DIVISION
RF
VDD
IN
TQ5131
DATA SHEET
GND
LO Mode Select/
IN _{LO Input}
3V Cellular Band
CDMA/AMPS RFA/Mixer
GIC
IFA Gain
IC
Select
CDMA IF
IF Out ^Out
IF AMP's
Out _{IF Out}
Product Description
The TQ5131 is a 3V, RFA/Mixer IC designed specifically for Cellular band
CDMA/AMPS applications. It’s RF performance meets the requirements of products
designed to the IS-95 and AMPS standards. The TQ5131 is designed to be used
with the TQ3131 (CDMA/AMPS LNA) which provides a complete CDMA receiver for
800MHz dual-mode phones.
The RFA/Mixer incorporates on-chip switches which determine CDMA, AMPS and
bypass mode select. When used with the TQ3131 (CDMA/AMPS LNA), four gain
steps are available. The RF input port is internally matched to 50 Ω, greatly
simplifying the design and keeping the number of external components to a
minimum. The TQ5131 achieves good RF performance with low current
consumption, supporting long standby times in portable applications. Coupled with
the very small SOT23-8 package, the part is ideally suited for Cellular band mobile
phones.
Electrical Specifications¹
Parameter
Frequency
Min
Typ
Max
Units
881
MHz
Gain
15.0
dB
Noise Figure
4.5
dB
Input 3^rd Order Intercept
2.5
dBm
DC supply Current
15.0
mA
Note 1: Test Conditions: Vdd=2.8V, RF=881MHz, LO=966MHz, IF=85MHz, Ta=25C, CDMA High Gain
state.
Features
Small size: SOT23-8
Single 3V operation
Low-current operation
Gain Select
Mode Select
High IP3 performance
Few external components
Applications
IS-95 CDMA Mobile Phones
AMPS Mobile Phones
Dual Mode CDMA Cellular application
For additional information and latest specifications, see our website: www.triquint.com
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