Philips Semiconductors
Low power dual-band GSM transceiver
with an image rejecting front-end
Objective specification
UAA3522HL
Notes
1. Measured and guaranteed only on UAA3522 evaluation board.
2. The IF output has open collectors which are supplied via external inductors. External resistors are also needed to
set the output impedance and to match the IF output to the specified load resistance RL (see Fig.3).
3. Value includes losses due to the printed circuit board and balun.
4. Value is guaranteed only for the Pi(LO) typ.
5. For a given RF input power, the value is the difference in the power measured at the IF output when the LNA is
switched on and when it is switched off.
6. This value is guaranteed within the temperature range −10 to +70 °C.
7. Voltage gain is defined as the differential baseband output voltage (either at pins IA/IB or pins QA/QB) divided by the
differential input voltage at pins RXIIFA and RXIIFB.
8. Value refers to differential voltage at pins RXIIFA and RXIIFB (1 kΩ input impedance).
9. Value includes printed circuit board and balun losses.
10. RREFAGC = 18 kΩ, 1%.
11. Guaranteed at Tamb = −30 to +70 °C.
12. With specified LC tuned circuit (33 nH, 15 pF) connected as shown in Fig.4.
13. Defined for the typical input power.
14. Oscillator configured as shown in the evaluation board diagram Fig.7.
handbook, full pagewidth
VCC
50 Ω
LOW
LOSS
BALUN
input port
RXIRFA
RF
RXOIFA
RECEIVER
RXIRFB
RXOIFB
Z = 1 kΩ
BALUN
1 kΩ/50 Ω
RL
50 Ω
output port
FCA047
2000 Feb 18
Fig.3 RF receiver test principle.
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