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STPAC01F2 Datasheet

  • STPAC01F2

  • IPAD TM, RF detector for power amplifier control

  • 7頁

  • STMICROELECTRONICS   STMICROELECTRONICS

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STPAC01F2
IPAD鈩? RF detector for power amplifier control
Features
鈻?/div>
STPAC01F2 has two outputs
鈥?one for the signal detection
鈥?one for the temperature compensation
V
DCout
= 0.88 V at 0.85 GHz at 10 dBm
V
DCout
= 1.07 V at 1.85 GHz at 10 dBm
V
supply
= 5 V max
Lead-free package
Figure 1.
Pin layout (bump side)
3
2
V
Temp
Gnd1
Gnd1
Gnd2
Bias
鈻?/div>
鈻?/div>
鈻?/div>
鈻?/div>
Flip Chip
(8 bumps)
Benefit
鈻?/div>
1
The use of IPAD technology allows the RF
front-end designer to save PCB area and to
drastically reduce parasitic inductances.
DC
out
Gnd1
A
B
C
Applications
Target applications are cellular phones and PDA
using GSM, DCS, PCS, AMPS, TDMA, CDMA
and 800 MHz to 1900 MHz frequency ranges.
Figure 2.
RFin
Functional diagram
Coupler
V
BIAS
RF input
RF detector
Low pass
filter
Thermal
compensation
STPAC01F2
GND1
GND2
Description
The STPAC01F2 is an integrated RF detector for
the power control stage. It converts RF signal
coming from the coupler into a DC signal usable
by the digital stage. It is based on the use of two
similar diodes, one providing the signal detection
while the second one is used to provide
temperature information to a thermal
compensation stage. A biasing stage suppresses
the detection diode drop voltage effect.
V
DCOut
V
temp
TM:
IPAD is a trademark of STMicroelectronics.
April 2008
Rev 2
1/7
www.st.com
7

STPAC01F2 產(chǎn)品屬性

  • 5,000

  • RF/IF 和 RFID

  • RF 檢測器

  • -

  • 800MHz ~ 1.9GHz

  • AMPS，CDMA，DCS，GSM，TDMA

  • -

  • -

  • 2.2 V ~ 3.2 V

  • 500µA

  • 帶卷 (TR)

  • 8-WFBGA，F(xiàn)CBGA

  • 497-4388-2

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