Philips Semiconductors
Image rejecting front-end
for GSM applications
Product specification
UAA2073AM
AC CHARACTERISTICS
VCC = 3.75 V; Tamb = −30 to +75 °C; fIF = 175 MHz; unless otherwise specified.
SYMBOL
PARAMETER
CONDITIONS
MIN. TYP. MAX. UNIT
Receive section (receive section on)
RiRX
RF input resistance (real part of balanced; at 942.5 MHz
−
150 −
the parallel input impedance)
CiRX
RF input capacitance (imaginary balanced; at 942.5 MHz
part of the parallel input
impedance)
−
1
−
fiRX
RLiRX
GCPRX
RF input frequency
925 −
960
return loss on matched RF input note 1
15
20
−
conversion power gain
differential RF input to
19
22
25
differential IF output matched to
1 kΩ differential
Grip
gain ripple as a function of RF note 2
frequency
−
0.2 0.5
∆G/T
gain variation with temperature note 2
−20 −15 −10
DES1
1 dB desensitization input power interferer frequency offset
3 MHz
−
−30 −
CP1RX
IP2DRX
IP3RX
1 dB input compression point
half IF spurious rejection
(fRF = fLO + 0.5fIF)
3rd order intercept point
referenced to the RF input
note 1
note 2
note 2
−25 −23.0 −
60
−
−
−21.5 −15 −
NFRX
overall noise figure
RF input to differential IF output;
note 3
Tamb = +25°C
−
over full temperature range −
3.6 4.0
−
4.7
RLRX
typical application IF output load balanced
impedance
−
1000 −
CLRX
foRX
IR
IF output load capacitance
IF frequency range
image frequency rejection
unbalanced
fLO < fRF
−
−
2
−
175 −
30
45
−
Ω
pF
MHz
dB
dB
dB
mdB/K
dBm
dBm
dB
dBm
dB
dB
Ω
pF
MHz
dB
1997 Jan 27
9