RF210(A/B)
Image-Reject Downconverter
Table 4. RF210(A/B) Electrical Specifications (2 of 2)
(T
A
= 25 C, Vcc = 3.0 V,
f
IF
= 400 MHz,
Plo
= –10 dBm)
Parameter
Supply current:
Enable mode
Sleep mode
RF input frequency
IF frequency
LO frequency
LO to RF input isolation
Input impedance
Gain:
High gain (RF210A and RF210B)
Low gain (8 dB attenuation, RF210A)
Low gain (16 dB attenuation, RF210B)
Gain variation vs. Frequency
Gain step tracking error
Noise figure:
High gain (19 dB gain, RF210A and RF210B)
Low gain (11 dB gain, RF210A)
Low gain (3 dB gain, RF210B)
High gain (19 dB gain, RF210A and RF210B)
(Note 3)
Input 1 dB compression point
Input third order intercept point
IF shunt resistance/side
Spurious response (Note 2):
2(RF) x 2(LO) and 3(RF) x 3(LO)
Image rejection
Test Condition
DCS1800/PCS1900 Mode, BANDSEL = 1
ENA = 1
ENA = 0
Min
Typical
Max
Units
42
250
1805
350
1355
30
400
1990
450
1640
40 – j10
19
11
3
0.5
mA
µA
MHz
MHz
MHz
dB
Ω
dB
dB
dB
dB
dB
LNA1800IN = 1900 MHz
GAINSEL = 0
GAINSEL = 1
GAINSEL = 1
1
0.5
No blocker,
GAINSEL = 0
GAINSEL = 1
GAINSEL = 1
–22 dBm blocker,
GAINSEL = 0
–24
–17
400
Interferer = –65 dBm
3.5
9.0
15
4.1
4.5
11
16
dB
dB
dB
dB
dBm
dBm
500
–53
600
Ω
dB
dB
35
Control Signals (All Modes)
Enable (ENA) and gain select (GAINSEL) input voltages:
V
IH
V
IL
Enable (ENA) and gain select (GAINSEL) input currents:
I
IH
I
IL
1.9
0.8
V
V
–10
Enable time
Bandselect switching time
Note 1:
Assumes 0 dBm @ 915 MHz blocker at the antenna input attenuated by 28 dB.
Note 2:
The rejection is specified with respect to the desired signal gain.
Note 3:
Assumes –12 dBm @ 1785 MHz blocker at the antenna input attenuated by 10 dB.
20
–1
15
15
100
0
µA
µA
µs
µs
4
October 20, 1999
Conexant
Proprietary Information and Specifications are Subject to Change
100775A
CONEXANT [ CONEXANT SYSTEMS, INC ]
