WIRELESS COMMUNICATIONS DIVISION
PLNA_OUT
PCS_ON
LIN/GPS
PMIX_IN
BUFFEN
VDD_DIG
`
TQ5638
PRELIMINARY DATA SHEET
Iset
PM_OUT+
Logic Control
PLNA_IN
PM_OUT-
2.8V SiGe Dual-Mode CDMA
Rx Receiver
Features
KPCS-CDMA and GPS operation
Excellent Cross Modulation Performance
Low current consumption
9.0 dBm PCS LNA IIP3
11.0 dBm PCS Mixer IIP3
Excellent Noise and Gain performance
Adjustable third order intercept on LNA
stage
Flexible IF frequency range from 80 – 230
MHz
TX LO Buffer included
VDD_LNA
TQ5638
MIX_GND
GLNA_IN
Vdd_MIX
GPS_GND
GM_OUT+
VDD_LO
GLNA_OUT
GM_OUT-
Product Description:
Small 4x4 Package
The TQ5638 is a CDMA Rx Receiver designed for KPCS-Band, Dual-Mode operation.
The device supports KPCS CDMA and GPS. The IF range is from 80 MHz to 230MHz
Full ESD Protection
with external tuning. The Low Noise Amplifiers have an adjustable third order intercept
Few external components
(IP3) to minimize inter-modulation and cross-modulation effects. The mixers are
designed for differential IF outputs (single-ended or differential IF for GPS modes), and
System Advantage
they feature excellent linearity and low noise figure.
Most compact integrated receiver for KPCS
This device is available in a 4X4 mm MLF package with 24 pins. The TQ5638 front-
CDMA and A-GPS applications
end receiver is capable of meeting all electrical requirements in accordance with the
IS-98 IMD requirements met with 2 gain
TIA/EIA 98-C Wireless Communication standard.
states simplifying calibration procedures
Selected Cascade Electrical Specifications:
Operating Mode (Cascade)
Cascade
Gain
(dB)
26
37
Cascade
NF
(dB)
2.2
1.7
Cascade
IP3
(dBm)
-2.0
-17.5
Current
(mA)
28
19
GMIX_IN
PLO_OUT
GLO_IN
PLO_IN
GND
High mixer linearity eliminates potential call
drop issues associated with gain switching
Enhanced PCS linearity enables use of
FBAR or SAW PCS duplexers
Best I in class A-GPS cascade gain for
maximum takeover
PCS-Band, High-Gain, High Linearity
A-GPS
Note 1:
Test Conditions CDMA Mode: V
CC
=2.75VDC, Tc=25°C, IS-95/98 Modulation, Data includes the
following image reject filters (PCS – SAWTEK P/N 856080, GPS – SAWTEK P/N 856135)
Applications
KPCS band/A-GPS CDMA (IS-95/98) based
mobile phones
Package Pin-out:
For additional information and latest specifications, see our website:
www.triquint.com
1
TRIQUINT [ TRIQUINT SEMICONDUCTOR ]
