TQ5631 Datasheet, PDF (1/14 Pages) TriQuint Semiconductor – 3V PCS Band CDMA RFA/Mixer IC

WIRELESS COMMUNICATIONS DIVISION
GND
RF
IN
TQ5631
DATA SHEET
GND
IF
out
VDD
VDD
3V PCS Band CDMA
RFA/Mixer IC
LO
GIC
IN
Product Description
The TQ5631 is a 3V, RFAmplifier/Mixer IC designed specifically for PCS band CDMA
applications. It’s RF performance meets the requirements of products designed to
the IS-95 standards. The TQ5631 is designed to be used with the TQ3631 (CDMA
LNA) which provides a complete CDMA receiver for 1900MHz phones.
The RFA/Mixer incorporates on-chip switches which determine gain select states.
When used with the TQ3631 (CDMA 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 TQ5631 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 PCS band mobile phones.
Electrical Specifications¹
Features
Small size: SOT23-8
Single 3V operation
Low-current operation
Gain Select
High IP3 performance
Few external components
Applications
IS-95 CDMA Mobile Phones
Parameter
Frequency
Min
Typ
Max
Units
1960
MHz
Gain
15.0
dB
Noise Figure
5.7
dB
Input 3^rd Order Intercept
1.0
dBm
DC supply Current
20.0
mA
Note 1: Test Conditions: Vdd=2.8V, RF=1960MHz, LO=1750MHz, IF=210MHz, Ta=25C,
LO input –4dBm, CDMA High Gain state.
For additional information and latest specifications, see our website: www.triquint.com
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