Rx ASIC
RF250
Table 5. RF250 Rx ASIC Electrical Specifications (2 of 3)
TA = 25° C, VCC = 3.3 V, PLO = –10 dBm
Parameter
Conversion gain (power)
Single-sideband noise figure
P1dB @ input
IP3 @ input
RF input return loss (1930-1990 MHz)
LO input power level
IF output resistance (differential)
IF frequency range
LO/LNA input isolation
LO/RF input isolation
Total supply current (adjustable)
Frequency range
Input impedance:
CDMA input (differential)
PCS input (differential)
AMPS input (single-ended)
Gain:
Maximum
Minimum
Maximum (AMPS)
Minimum (AMPS)
Gain slope
Gain slope linearity (over any 6 dB segment)
IF amplifier IIP3:
@ Maximum gain (CDMA and PCS mode)
@ maximum gain (AMPS mode)
Input 1 dB compression @ minimum gain
IF amplifier noise figure:
@ Maximum gain
Minimum gain
Symbol
Test Condition
PCS Mixer
Rx VGA - I/Q Demodulator
Min Typical Max Units
10
dB
12
dB
–5
dBm
5
dBm
–15
dB
–10
dBm
1000
Ω
300 MHz
25
dB
20
dB
24
mA
50
300 MHz
1000
Ω
1000
Ω
1000
Ω
53
54
55 dB
–47
–42
–37 dB
61
62
63 dB
–39
–34
–29 dB
45
dB/V
–3
+3 dB
–50
–58
dBm
–10
dBm
5
dB
50
dB
8
Conexant Systems, Inc.
101251A
August 24, 2000