WIRELESS COMMUNICATIONS DIVISION
TQ5122
DATA SHEET
GND 1
GND
Vdd MXR
2
3
16
15
14
13
12
11
10
9
GND
GND
IF Output/Vdd
GND
MXR RF
Input
GND
LNA
Out
Sleep
Control
MXR LO 4
VDD LNA
GND
RF IN
GND
5
6
7
8
3V Cellular TDMA/AMPS
Receiver IC With Power-
Down
Features
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Power-Down, 鈥淪leep鈥?Mode
Single 2.8V operation
Low-current operation
Small QSOP-16 plastic package
Few external components
Product Description
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The TQ5122 is a 3V, RF receiver IC designed specifically for Cellular band TDMA
applications. It鈥檚 RF performance meets the requirements for products designed to the
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IS-136 TDMA and the AMPS standards. The TQ5122 includes a power鈥揹own mode
which allows current saving during standby and the non-operating portion of the TDMA
pulse. The TQ5122 contains LNA and Mixer circuits matched to the 800MHz cellular
band.
The mixer uses a high-side LO frequency. The IF has a usable frequency range of 85
to 150MHz. The LNA Output and Mixer Input ports are internally matched to simplify
the design and keep the number of external components to a minimum. The TQ5122
achieves excellent RF performance with low current consumption which yields long
standby times in portable applications. The small QSOP-16 package is ideally suited
for Cellular band mobile phones.
Electrical Specifications
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Parameter
Frequency
Gain
Noise Figure
Input 3
rd
Order Intercept
DC supply Current
Min
869
18.5
2.7
-8.5
12.0
Typ
Max
894
Units
MHz
dB
dB
dBm
mA
Applications
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IS-136 TDMA Mobile Phones
Dual Mode TDMA/AMPS Mobile Phones
AMPS Mobile Phones
Note 1: Test Conditions: Vdd=2.8VDC, Tc=25擄C, Filter IL=2.5dB, RF=881MHz, LO=1016MHz,
IF=135MHz, LO input=-7dBm
For additional information and latest specifications, see our website:
www.triquint.com
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