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RF142 Datenblatt(PDF) 4 Page - List of Unclassifed Manufacturers

Teilenummer RF142
Bauteilbeschribung  Heterojunction Bipolar Transistor Power Amplifier Dual-Band Controller for GSM and PCS Applications
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RF142 Datenblatt(HTML) 4 Page - List of Unclassifed Manufacturers

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



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