TQ5121 Datasheet, PDF (1/10 Pages) TriQuint Semiconductor – 3V Cellular TDMA/AMPS LNA/mixer Receiver IC

WIRELESS COMMUNICATIONS DIVISION
N/C 1
N/C 2
Vdd MXR 3
MXR LO 4
VDD LNA ⁵
GND ⁶
RF IN 7
GND 8
16 ^Optional
GND
15 N/C
14 ^{Mixer IF/}
Vdd
13 GND
12 MXR RF
11 GND
10
LNA
Out
9 N/C
Product Description
The TQ5121 is a 3V, RF receiver IC designed specifically for Cellular band TDMA
applications. It’s RF performance meets the requirements of products designed to
the IS-136 and AMPS standards. The TQ5121 is pin compatible with TQ9222, which
enables handset designers to use strategic board platform strategy. The TQ5121
contains LNA+Mixer circuits to handle the 800MHz cellular band.
The mixer uses a high-side LO frequency, with the IF covering a range of 70 to
140MHz. Most RF ports are internally matched to 50 Ω, greatly simplifying the
design and keeping the number of external components to a minimum. The TQ5121
achieves good RF performance with low current consumption, supporting long
standby times in portable applications. Coupled with the very small QSOP-16
package, the part is ideally suited for Cellular band mobile phones.
Electrical Specifications¹
Parameter
Frequency
Min
Typ
Max
Units
869
894
MHz
Gain
17.5
dB
Noise Figure
2.7
dB
Input 3^rd Order Intercept
-8.5
dBm
DC supply Current
10.0
mA
Note 1: Test Conditions: Vdd=2.8V, Ta=25C, filter IL=2.5dB, RF=881MHz, LO=991MHz, IF=110MHz,
LO input=-7dBm
TQ5121
DATA SHEET
3V Cellular TDMA/AMPS
LNA/mixer Receiver IC
Features
§Pin compatible with TQ9222
(dual-band TDMA receiver)
§Single 3V operation
§Low-current operation
§50 Ω matched inputs
§QSOP-16 plastic package
Applications
§IS-136 Mobile Phones
§AMPS Mobile Phones
§ISM 900MHz
For additional information and latest specifications, see our website: www.triquint.com
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