AK1572 Datasheet, PDF (11/35 Pages) Asahi Kasei Microsystems – Down Converter Mixer with Fractional-N Frequency Synthesizer and VCO

[AK1572]
9. Block Functional Descriptions
・ Operation Mode
AK1572 operation is controlled as follows by the [PDN] pin and registers.
Pin
Registers
Operating state
Function
[PDN] {MIXEN} MODE[1] MODE[2] Mixer Synthesizer VCO Local Out
StandBy1 ”L”
X
X
X
OFF
OFF
OFF
OFF
Prohibited ”H”
0
0
0
OFF
ON
ON
OFF
Func1 ”H”
0
0
1
OFF
ON
ON
Output
Func2 ”H”
0
1
0
OFF
ON
OFF
Input
StandBy2 ”H”
0
1
1
OFF
OFF
OFF
OFF
Func3 ”H”
1
0
0
ON
ON
ON
OFF
Func4 ”H”
1
0
1
ON
ON
ON
Output
Func5 ”H”
1
1
0
ON
ON
OFF
Input
Func6 ”H”
1
1
1
ON
OFF
OFF
Input
StandBy1:Stand-by mode. Current consumption is minimized. It is available to write to the registers.
Func1: VCO and Synthesizer are active and Local signal outputs from [LOP] and [LON] pins.
Func2:Only Synthesizer is active. PLL operation is available with the external VCO.
StandBy2: Stand-by mode. Current consumption is minimized. It is available to write to the registers.
Func3: VCO, Synthesizer and Mixer are active.
Func4: VCO, Synthesizer and Mixer are active and Local signal outputs from [LOP] and [LON] pins.
Func5: Synthesizer and Mixer are active. PLL operation is available with the external VCO.
Func6: Only Mixer is active. A local signal needs to be input from [LOP] and [LON] pins.
MS1551-E-00
11
2013//8