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AK1548のメーカーはAKMです、この部品の機能は「8GHz Low Noise Integer-N Frequency Synthesizer」です。 |
部品番号 | AK1548 |
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部品説明 | 8GHz Low Noise Integer-N Frequency Synthesizer | ||
メーカ | AKM | ||
ロゴ | |||
このページの下部にプレビューとAK1548ダウンロード(pdfファイル)リンクがあります。 Total 42 pages
[AK1548]
AK1548
8GHz Low Noise Integer-N Frequency Synthesizer
1. Overview
The AK1548 is an Integer-N PLL (Phase Locked Loop) frequency synthesizer, covering a wide range of frequency
from 1GHz to 8GHz. Consisting of a highly accurate charge pump, a reference divider, a programmable divider
and a dual-modulus prescaler (P/P+1), this product provides high performance, very low Phase Noise and small
footprints.
An ideal PLL can be achieved by combining the AK1548 with the external loop filter and VCO (Voltage Controlled
Oscillator). Access to the registers is controlled via a 3-wire serial interface. The operating supply voltage is from
2.7V to 3.3V, and the charge pump circuit and the serial interface can be driven by individual supply voltage.
2. Features
Operating frequency :
Programmable charge pump current :
Fast lock mode for improved lock time :
Supply Voltage :
Separate Charge Pump Power Supply :
Excellent Phase Noise :
On-chip lock detection feature of PLL :
Digit
Package :
Operating temperature :
1GHz to 8GHz
650μA to 5200μA typical with 8steps
The current range can be controlled by an external resistor.
The programmable timer can switch two charge pump
current setting.
2.7 to 3.3 V (PVDD, AVDD pins)
PVDD to 5.5V (CPVDD pin)
-226dBc/Hz
Selectable P hase F requency D etector (P FD) Output o r
al filtered lock detect
20pin QFN (0.5mm pitch, 4mm × 4mm × 0.75mm)
-40°C to 85°C
MS1364-E-00
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2012/1
http://www.Datasheet4U.com
1 Page 3. Block Diagram
[AK1548]
R EFIN
CLK
DATA
LE
RFIN P
RFINN
VBG
LDO
R COUNTER
14 bit
REGISTER
24 bit
PHASE
FREQENCY
DETECTOR
LOCK DETECT
SWALLOW
COUNTER
6 bit
P ROG RA MA BL E
COUNTER
13 bit
N D IVIDER
+ PRESCALER
- 8/9,16/17,32/33,64/65
C HARGE
PUMP
FAST
COUNTER
BIAS
CP
LD
MS1364-E-00
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2012/1
3Pages [AK1548]
5. Absolute Maximum Ratings
Parameter
Symbol
Min.
Max.
Unit
Remarks
Supply Voltage
VDD1
VDD2
-0.3 3.6 V [AVDD], [PVDD] (Note 1)
-0.3 6.5 V [CPVDD] (Note 1)
Ground Level
VSS1
VSS2
0 0 V [AVSS], [PVSS]
0 0 V [CPVSS]
Analog Input Voltage VAIN
VSS1-0.3 VDD1+0.3 V [RFINN], [RFINP], [REFIN] (Notes 1 & 2)
Digital Input Voltage VDIN
[CLK], [DATA], [LE], [PDN], [TEST1],
VSS1-0.3 VDD1+0.3 V
[TEST2] (Notes 1 & 2)
Input Current
IIN
-10 10 mA
Storage Temperature Tstg
-55 125 °C
Note 1) 0V reference for all voltages.
Note 2) Maximum must not be over 3.6V.
Exceeding these maximum ratings may result in damage to the AK1548. Normal operation is not guaranteed at
these extremes.
6. Recommended Operating Range
Parameter
Symbol Min. Typ. Max. Unit
Remarks
Operating Temperature
Supply Voltage
Ta -40
85 °C
VDD1
2.7 3.0 3.3
V Applied to the [AVDD],[PVDD] pins
VDD2
VDD1 5.0
5.5
V Applied to the [CPVDD] pin
Note 1) VDD1 and VDD2 can be driven individually within the Recommended Operating Range.
Note 2) All specifications are applicable within the Recommended Operating Range (Operating Temperature /
Supply Voltage) .
MS1364-E-00
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2012/1
6 Page | |||
ページ | 合計 : 42 ページ | ||
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PDF ダウンロード | [ AK1548 データシート.PDF ] |
データシートを活用すると、その部品の主な機能と仕様を詳しく理解できます。 ピン構成、電気的特性、動作パラメータ、性能を確認してください。 |
部品番号 | 部品説明 | メーカ |
AK1541 | 20 to 600MHz Delta-Sigma Fractional-N Frequency Synthesizer | AKM |
AK1542A | 20 to 600MHz Integer-N Frequency Synthesizer | AKM |
AK1543 | 1300MHz Delta-Sigma Fractional-N Frequency Synthesizer | AKM |
AK1544 | 1300MHz Integer-N Frequency Synthesizer | AKM |