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參數(shù)資料
| 型號(hào)： | RF2668 |
| 廠商： | RF MICRO DEVICES INC |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | CDMA/FM TRANSMIT MODULATOR, IF AGC, AND UPCONVERTER WITH INTEGRATED PLL |
| 中文描述： | TELECOM, CELLULAR, RF AND BASEBAND CIRCUIT |
| 封裝： | 7 X 7 MM, PLASTIC, LQFP-48 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 430K |
| 代理商： | RF2668 |
Preliminary
5-78
RF2668
Rev B4 010423
5
M
U
Pin
47
Function
VCC3
Description
Supply voltage for the AGC and the Bandgap circuitry. A 1nF external
bypass capacitor is required and an additional 0.1
μ
F will be required if
no other low frequency bypass capacitors are nearby. The trace length
between the pin and the bypass capacitors should be minimized. The
ground side of the bypass capacitors should connect immediately to
ground plane.
Bandgap voltage reference. This voltage, constant over temperature
and supply variation, is used to bias internal circuits. A 1nF external
bypass capacitor is required.
Interface Schematic
48
BG OUT
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