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參數(shù)資料
| 型號： | RF142 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Heterojunction Bipolar Transistor Power Amplifier Dual-Band Controller for GSM and PCS Applications |
| 中文描述： | 異質(zhì)結(jié)雙極晶體管功放雙頻控制器，用于GSM和PCS應(yīng)用 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 456K |
| 代理商： | RF142 |
RF142
Power Amplifier Controller
4
September 7, 2000
Conexant
100774A
Proprietary Information and Specifications are Subject to Change
Table 4. RF142 Electrical Characteristics (2 of 2)
(T
A
= 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
dB
Error amplifier gain (Note)
Low gain on shaper
35
40
44
Auxiliary amplifier gain
25
28
31
dB
Standby current
I
STDBY
ENABLE = low
20
μ
A
mA
Supply current
I
CC
VPCGSM and VPCDCS source current = 0 mA
58
75
BAND and ENABLE V
IH
V
IH
1.9
V
BAND and ENABLE V
IL
V
IL
0.8
V
Note.
Included Gain Shaper
Logarithmic
Detector
Amp 2
Amp 1
Gain
Shaper
VPCGSM
VPCDCS
RFPC+
RFPC-
VAPC+
VAPC-
AUX+
AUX-
VCC2
GND
CAP+
CAP-
VREF
VMP
BAND
DC Bias
Circuitry
ENABLE
VCC1
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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