Image-Reject Downconverter
RF210(A/B)
Table 3. RF210(A/B) Recommended Operating Conditions
Parameter
Min
Typical
Max
Units
Supply Voltage
2.7
3.0
5.0
V
Operating Temperature
–30
+25
+85
°
C
Table 4. RF210(A/B) Electrical Specifications (1 of 2)
fIF Plo
A
(T = 25 C, Vcc = 3.0 V, = 400 MHz,
= –10 dBm)
Parameter
Test Condition
Min
Typical
Max
Units
GSM900 Mode, BANDSEL = 0
Supply current:
Enable mode
Sleep mode
ENA = 1
ENA = 0
38
mA
10
960
450
1410
µ
A
RF Input frequency
IF frequency
935
350
MHz
MHz
MHz
dBm
dB
400
–10
LO frequency
1285
LO input power
LO to RF input isolation
Input impedance
Gain:
30
LNA900IN = 950 MHz
40 – j50
Ω
High gain (RF210A and RF210B)
Low gain (10 dB attenuation, RF210A)
Low gain (20 dB attenuation, RF210B)
Gain variation vs. Frequency
GAINSEL = 0
GAINSEL = 1
GAINSEL = 1
22
12
2
dB
dB
dB
dB
dB
0.5
1
0.5
Gain step tracking error
Noise figure:
High gain
No blocker,
GAINSEL = 0
GAINSEL = 1
GAINSEL = 1
–28 dBm blocker @ 915
MHz, GAINSEL = 0
3.3
9.0
17
3.9
11
19
dB
dB
dB
dB
Low gain (12 dB gain, RF210A)
Low gain (2 dB gain, RF210B)
High gain (Note 1)
3.9
Input 1 dB compression point
Input third order intercept point
IF shunt resistance/side
–25
–17
400
dBm
dBm
Ω
500
–45
600
Spurious response:
2(RF) x 2(LO) and 3(RF) x 3(LO)
(Note 2):
Interferer input = –75 dBm
dB
dB
Image rejection
35
100775A
Conexant
3
October 20, 1999
Proprietary Information and Specifications are Subject to Change
CONEXANT [ CONEXANT SYSTEMS, INC ]
