KB8821 synthesizer equivalent, frequency synthesizer.
* Very low current consumption(8821:3.5mA, 22:4.5mA, 23:5.5mA)
* Operating voltage range : 2.7 ~ 4.0V
* Selectable power saving mode(Icc=1uA typical @3V)
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* Cellular telephone systems : KB8821
* Portable wireless communications : KB8822 (PCS/PCN, cordless)
* Wire.
Pin No 1 Symbol VDD1 I/O Description
KB8821/22/23
Power supply voltage input for the RF PLL part. V DD1 must equal VDD2. In order to reject supply noise, bypass capacitors must be placed as close as possible to this pin and be connected directly to.
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