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AK1590 の電気的特性と機能

AK1590のメーカーはAKMです、この部品の機能は「1GHz Delta-Sigma Fractional-N Frequency Synthesizer」です。


製品の詳細 ( Datasheet PDF )

部品番号 AK1590
部品説明 1GHz Delta-Sigma Fractional-N Frequency Synthesizer
メーカ AKM
ロゴ AKM ロゴ 




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AK1590 Datasheet, AK1590 PDF,ピン配置, 機能
[AK1590]
AK1590
1GHz Delta-Sigma Fractional-N Frequency Synthesizer
1. Overview
AK1590 is a Delta-Sigma Fractional-N PLL (Phase Locked Loop) frequency synthesizer with a frequency switching
function, covering a wide range of frequencies from 60 to 1000MHz. This product consists of an 18-bit Delta-Sigma
modulator, a low-noise phase frequency comparator, a highly accurate charge pump, a reference divider, dual-module
prescaler (P/P+1) and frequency offset adjustable circuits.
2. Features
Operating frequency:
Programmable charge pump current:
60 to 1000MHz
In a normal operating scheme, the charge pump current can be set
in 8 steps, in the range from 20 to 168μA.
In a Fast Lockup scheme, the charge pump current can be set in
8 steps, in the range from 0.8 to 2.3mA.
Supply Voltage:
2.7 to 5.5 V (PVDD pin)
Separate power supply for the charge pump: PVDD to 5.5V (CPVDD pin)
On-chip power-saving features
Frequency offset adjustable function:
No glitch operation for AFC(Automatic Frequency Control) and
DFM(Digital Frequency Modulation);
When the offset adjustable register is accessed, INT and NUM are
General-purpose output:
recalculated internally.
Two general-purpose output ports to control peripheral parts
Low phase noise:
Low consumption current:
Package:
Operating temperature:
-201dBc/Hz
2.5mA typ
24pin QFN (0.5mm pitch, 4mm4mm0.7mm)
-40 to +85°C
MS1478-E-01
1
2013/2
http://www.Datasheet4U.com

1 Page





AK1590 pdf, ピン配列
3. Block Diagram
[AK1590]
LDO
REFIN
CLK
DATA
LE
R COUNTER
8bit
REGISTER
24bit
NUM + OFFSET
ΔΣ
18bit
INT
SUM
N DIVIDER
PULSE
SWALLOW
COUNTER
RFINP
RFINN
+
-
PRESCALER
4/5, 8/9,16/17
PHASE
FREQENCY
DETECTOR
LOCK DETECT
CHARGE PUMP 1
CHARGE PUMP 2
(For Fast Lock Up)
FAST
COUNTER
13bit
BIAS
CP
CPZ
SWIN
LD
Fig. 1 Block Diagram
MS1478-E-01
3
2013/2


3Pages


AK1590 電子部品, 半導体
[AK1590]
Parameter
Supply Voltage
Ground Level
Analog Input Voltage
Digital Input Voltage
Input Current
Storage Temperature
5. Absolute Maximum Ratings
Symbol
VDD1
VDD2
VSS1
VSS2
VSS3
VAIN1
VAIN2
VDIN
IIN
Tstg
Table 2 Absolute Maximum Ratings
Min.
Max.
Unit
Remarks
-0.3 6.5 V Note 1, Note 2
-0.3 6.5 V Note 1, Note 3
0 0 V Voltage ground level, Note 4
0 0 V Voltage ground level, Note 5
0 0 V Voltage ground level, Note 6
VSS1-0.3 VDD1+0.3 V Note 1, Note 7, Note 10
VSS2-0.3 VDD2+0.3 V Note 1, Note 8, Note 10
VSS3-0.3 VDD1+0.3 V Note 1, Note 9, Note 10
-10 10 mA
-55 125 °C
Note 1) 0V reference for all voltages.
Note 2) Applied to [PVDD] pin.
Note 3) Applied to [CPVDD] pin
Note 4) Applied to [PVSS] pin.
Note 5) Applied to [CPVSS] pin.
Note 6) Applied to [DVSS] pin.
Note 7) Applied to [REFIN], [RFINN] and [RFINP] pins.
Note 8) Applied to [CPZ] and [SWIN] pins.
Note 9) Applied to [CLK], [DATA], [LE], [PDN1] and [PDN2] pins.
Note 10) Maximum must not be over 6.5V.
Exceeding these maximum ratings may result in damage to AK1590. Normal operation is not guaranteed at these
extremes.
6. Recommended Operating Range
Parameter
Operating Temperature
Supply Voltage
Table 3 Recommended Operating Range
Symbol Min. Typ. Max. Unit
Remarks
Ta -40
85 C
VDD1
2.7
3.3
5.5
V Applied to [PVDD] pin
VDD2 VDD1 5.0
5.5
V Applied to [CPVDD] pin
VDD1 and VDD2 can be driven individually within the recommended operating range.
The specifications are applicable within the recommended operating range (supply voltage / operating temperature).
MS1478-E-01
6
2013/2

6 Page



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