TQ5122 Datasheet, PDF (1/9 Pages) TriQuint Semiconductor – 3V Cellular TDMA/AMPS Receiver IC With Power- Down

WIRELESS COMMUNICATIONS DIVISION
GND 1
16 GND
TQ5122
DATA SHEET
GND 2
Vdd MXR 3
MXR LO 4
VDD LNA ⁵
GND 6
RF IN 7
GND 8
15 GND
14 IF Output/Vdd
13 GND
12
MXR RF
Input
11 GND
10
LNA
Out
9
Sleep
Control
3V Cellular TDMA/AMPS
Receiver IC With Power-
Down
Features


Product Description

The TQ5122 is a 3V, RF receiver IC designed specifically for Cellular band TDMA

applications. It’s RF performance meets the requirements for products designed to the _
IS-136 TDMA and the AMPS standards. The TQ5122 includes a power–down 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.
Power-Down, “Sleep” Mode
Single 2.8V operation
Low-current operation
Small QSOP-16 plastic package
Few external components
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 Specifications¹
Applications
 IS-136 TDMA Mobile Phones
 Dual Mode TDMA/AMPS Mobile Phones
 AMPS Mobile Phones
Parameter
Frequency
Min
Typ
Max
Units
869
894
MHz
Gain
18.5
dB
Noise Figure
2.7
dB
Input 3^rd Order Intercept
-8.5
dBm
DC supply Current
12.0
mA
Note 1: Test Conditions: Vdd=2.8VDC, Tc=25°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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