RF212 データシートの表示（PDF） - Unspecified
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RF212 Datasheet PDF : 9 Pages
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Image-Reject Front End
RF212
Table 7. RF212 Electrical Specifications (2 of 3)
(TA = 25 °C, Vcc = 2.7 V, fIF = 400 MHz, Plo = −10 dBm)
Parameter
Supply current:
Enable mode
Sleep mode
RF input frequency
IF frequency
LO to RF input isolation
Input impedance
Power gain (for 2 kΩ differential output impedance):
High gain mode
Low gain mode 1
Low gain mode 2
Gain step 1
Gain step 2
Temperature coefficient
Gain variation versus frequency
Noise figure:
High gain
Low gain mode 1
Low gain mode 2
Noise figure degradation with blocker:
High gain
Input 1 dB compression point
Input third order intercept point
Differential IF shunt output resistance
Image rejection:
fIF = 400 MHz
fIF = 350 or 450 MHz
Supply current:
Enable mode
Sleep mode
RF input frequency
IF frequency
LO to RF input isolation
Input impedance
Power gain (for 2 kΩ differential output impedance):
High gain mode
Low gain mode 1
Low gain mode 2
Gain step 1
Gain step 2
Temperature coefficient
Gain variation versus frequency
Noise figure:
High gain
Low gain mode 1
Low gain mode 2
Noise figure degradation with blocker:
High gain
Symbol
Test Condition
DCS1800 Mode
ENA = 1
ENA = 0
GMAX1
GMIN1
GMIN2
GSTEP1
GSTEP2
FTC1
GAINSEL = 0
GAINSEL = 1, STEPSEL = 1
GAINSEL = 1, STEPSEL = 0
IP1DB
IP3
GAINSEL = 0
GAINSEL = 1, STEPSEL = 1
GAINSEL = 1, STEPSEL = 0
−22 dBm blocker,
GAINSEL = 0 (Note 2)
high gain mode
low gain mode
PCS1900 Mode (for tri-band device only)
ENA = 1
ENA = 0
GMAX1
GMIN1
GMIN2
GSTEP1
GSTEP2
FTC1
GAINSEL = 0
GAINSEL = 1, STEPSEL = 1
GAINSEL = 1, STEPSEL = 0
GAINSEL = 0
GAINSEL = 1, STEPSEL = 1
GAINSEL = 1, STEPSEL = 0
−22 dBm blocker,
GAINSEL = 0 (Note 3)
Min Typical Max
19
30
1805
1880
350
400
450
30
50
20
22
25
2
10
–22
–20
–18
–14
–12
–10
–0.02
1.2
3.5
4.5
16.5
11
1.6
−23
–20
−20
–16
−12
2
35
40
25
19
30
1930
1990
350
400
450
30
50
20
22
25
2
10
–22
–20
–18
–14
–12
–10
–0.02
1.2
3.5
4.5
16.5
11
1.6
Units
mA
µA
MHz
MHz
dB
Ω
dB
dB
dB
dB
dB
dB/°C
dB
dB
dB
dB
dB
dBm
dBm
dBm
kΩ
dB
dB
mA
µA
MHz
MHz
dB
Ω
dB
dB
dB
dB
dB
dB/°C
dB
dB
dB
dB
dB
100956A
Conexant – Preliminary
5
May 18, 2000
Proprietary Information and Specifications are Subject to Change
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