
Philips Semiconductors
Product specification
SA9500
Dual-band, CDMA/AMPS downconverter IC
1998 Aug 11
7
AC ELECTRICAL CHARACTERISTICS
(continued)
V
CC
= +2.7V to +3.3V; T
amb
= +25
°
C; P
lo
= –3 dBm, f
IF
= 85.40 MHz; unless specified otherwise.
Appropriate external matching necessary.
PARAMETER
TEST CONDITIONS
LIMITS
UNITS
MIN.
–3
σ
TYP.
+3
σ
MAX.
PCS Downconverter
RF input frequency range
1810
1990
MHz
LO input frequency range
With doubler
1007
1050
MHz
IF output frequency range
50
300
MHz
IF output load impedance
Differential
1000
Conversion gain
@ f
IF
, over RF/LO frequency
ranges
@ f
IF
, over RF/LO frequency
ranges, SSB
@ f
IF
, over RF/LO frequency
ranges
Z
S
= 50
, with external balun
Z
S
= 50
Z
S
= 50
,
single LO out
9.5
11.3
11.7
dB
Noise figure
8.3
10.5
dB
Input IP3
1.0
1.4
dBm
RF input return loss
7.5
dB
LO input return loss
10
dB
LO output return loss
8
dB
LO input power range
–6
–3
0
dBm
Z
L
= 50
,
single LO out
with LO buffer @ low gain
with LO buffer @ high gain
Single-ended in, single-ended out,
with and without doubler
Single-ended in, differential out,
with and without doubler
Single-ended in, single-ended out,
with and without doubler
Single-ended in, differential out
LO output power range
–16.0
–7.5
–15.0
–5.0
–14.0
–4.0
dBm
dBm
LO (input and output) to RF leakage
–39.0
–35
dBm
LO (input and output) to IF leakage
–47.0
–35
dBm
RF to LO (input) isolation
30
56.0
dB
RF to IF isolation
20
42.0
dB
LO output to LO input isolation
Single-ended in, single-ended out,
with doubler
1/2 IF spur, f
= 85.4 MHz/111.38
MHz, with and without doubler,
P
int
= –30 dBm at RF input.
With Tx band interferer at LO input
port or LO buffer output port of
–40 dBm max and with
P
int
= –21 dBm in Rx band.
30
35.0
dB
56.0
58.0
dB
Spurious response rejection
71.0
dB