WIRELESS COMMUNICATIONS DIVISION
TQ5635
DATA SHEET
GND/LNA
Gain
Mixer
Vdd
GND/LNA
Gain
LNA Out
3 V PCS LNA/Mixer
Receiver IC
Active
Bias
1
GND
MXR In
GND
LNA
RF In
Mixer
LO
Vdd
Features
GND
?? Single 3.0 V Operation
?? Adjustable Gain/IP3/Current
?? Low Current Operation
?? Few external components
LNA
Bias
active
bias
LO
In
LO Buffer
IF Amp
??
QFN 3x3 mm, 16 Pin Leadless Plastic
Package
GND
IF Out
GIC
LNA Vdd
Product Description
?? High Input IP3
The TQ5635 is an LNA-Downconverter optimized for use in the Korea CDMA
PCS bands. The integrated LNA has a single high gain mode that provides over
15 dB of gain, and features very low NF and excellent IP3. An external resistor
controls LNA bias, making LNA Idd adjustable. The integrated mixer features
very high IP3 and provision for external adjustment of gain, IP3, and Idd.
Because of the external LO tuning inductor, IF’s in the range of 85 to 200Mhz
can be used. The excellent RF performance with low current coupled with very
small lead-less plastic package is ideally suited for PCS band mobile phone.
?? Low Noise Figure
Applications
?? PCS band CDMA mobile Applications
?? Wireless data applications
Electrical Specifications1
Parameter
Min
Typ
1855
24.5
2.3
Max
Units
MHz
dB
RF Frequency
Conversion Gain
Noise Figure
dB
rd
Input 3 Order Intercept
-4.75
23.4
dBm
mA
DC supply Current
Note 1. Test Conditions: Vdd=+2.8V, TC=+25C, RF=1855MHz, RF in =-30dBm LO=1635MHz,
LO input=-4dBm, IF=220MHz
2. Data includes image reject filter (Sawtek P/N: 356083) insertion loss of 1.7 dB
For additional information and latest specifications, see our website: www.triquint.com
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