RF2690 データシートの表示（PDF） - RF Micro Devices
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RF2690 Datasheet PDF : 16 Pages
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RF2690
Preliminary
Auto Calibration Mode
The filters are automatically tuned when the ENCAL pin goes high. The filters are reset to a nominal value whenever the
ENCAL pin goes low. The auto calibration circuitry is independent of the EN WUP and the EN RX control pins.
The EN RX and ENCAL pins can be connected together if desired.
Mode Control Truth Table
Mode
EN RX
Power Down
0
W-CDMA RX Warm-Up
1
W-CDMA RX
1
EN WUP
X
0
1
Logic
EN RX
EN WUP
Chip Enable If EN RX=0, then entire IC is powered down.
Warm-up Enable If EN WUP=0, then IC is in warm-up mode.
7
7-42
Rev A4 010918
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