RF142 查看數據表（PDF） - Conexant Systems
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RF142 Datasheet PDF : 7 Pages
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RF142
Parameter
GSM Maximum Sink/Source Control Current
DCS Maximum Sink/Source Control Current
VPCGSM off voltage
VPCDCS off voltage
Control output noise
Error amplifier gain (Note)
Auxiliary amplifier gain
Standby current
Supply current
BAND and ENABLE VIH
BAND and ENABLE VIL
Note. Included Gain Shaper
Table 4. RF142 Electrical Characteristics (2 of 2)
(TA = 25 °C, Vcc = 3.6 V)
Symbol
Ivpcgsm
Ivpcdsc
Test Condition
BAND <= 0.8 V
BAND >= 1.90 V
ENABLE = high
BAND = low
ENABLE = high
BAND = high
GSM and DCS
Low gain on shaper
ISTDBY
ICC
VIH
VIL
ENABLE = low
VPCGSM and VPCDCS source current = 0 mA
Power Amplifier Controller
Min
Typ
Max
Units
90
100
110
mA
70
80
90
mA
0.1
V
0.1
V
12
nV/√Hz
35
40
44
dB
25
28
31
dB
20
µA
58
75
mA
1.9
V
0.8
V
FEEDBACK
TO MIXER
TXDCS
TXGSM
GND
DCSIN
GND
GSMIN
GND
VCC
GND
VCC
Dual Band
PA
DCSAPC
GND GSMAPC
VPA
GND
DCSOUT
GND
GSMOUT
GND
T/R
SW
DIPLEXER
T/R
SW
FILTER
TO
ANTENNA
4
September 7, 2000
VREF
VMP
AUX+
AUX-
BAND
Gain
Shaper
VPCDCS
VPCGSM
Amp 1
CAP-
Amp 2
RF142
CAP+
VAPC-
Logarithmic
Detector
DC Bias
Circuitry
RFPC+
RFPC-
VCC1
VCC2
GND
VAPC+ ENABLE
PAEN
PA RAMP
CONTROL
VPAC
Figure 3. Typical RF142 Application Circuit
Conexant
Proprietary Information and Specifications are Subject to Change
C473
100774A
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