- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373103 > KB8821 (SAMSUNG SEMICONDUCTOR CO. LTD.) Tantalum Molded Capacitor; Capacitance: 10uF; Voltage: 35V; Case Size: 3.2x6 mm; Packaging: Tape & Reel PDF資料下載
參數(shù)資料
| 型號(hào)： | KB8821 |
| 廠商： | SAMSUNG SEMICONDUCTOR CO. LTD. |
| 英文描述： | Tantalum Molded Capacitor; Capacitance: 10uF; Voltage: 35V; Case Size: 3.2x6 mm; Packaging: Tape & Reel |
| 中文描述： | 頻率合成器 |
| 文件頁數(shù)： | 1/21頁 |
| 文件大?。?/td> | 237K |
| 代理商： | KB8821 |
PRELIMINARY SPECIFICATION (V1.5)
FREQUENCY SYNTHESIZER
KB8821/22/23
1
99-06-15
INTRODUCTION
The KB8821/22/23 are high performance dual frequency syn-
thesizers with integrated prescalers designed for RF operation
up to 1.2GHz/2.0GHz/2.5GHz and IF operation up to 520MHz.
The KB8821/22/23 contain dual-modulus prescalers. The RF
synthesizer adopts a 64/65 or an 128/129 prescaler(32/33 or
64/65 for the KB8823) and the IF synthesizer adopts an 8/9 or
a 16/17 prescaler.
Using a proprietary digital phase-locked-loop technique, the
KB8821/22/23 have linear phase detector characteristic and
can be used for very stable, low noise local oscillator signal.
Supply voltage can range from 2.7V to 4.0V. The KB8821/22/
23 are now available
in a
20-TSSOP/24-QFN package.
FEATURES
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)
Dual modulus prescaler :
KB8821/22 (RF) 64/65 or 128/129
KB8823 (RF) 32/33 or 64/65
KB8821/22/23 (IF) 8/9 or 16/17
Programmability via serial bus interface
No dead-zone PFD
Variable charge pump output current
High speed lock mode
ORDERING INFORMATION
* QFN : Quad Flat Non-leaded(see Addendum).
Device
KB8821/22/23
KB8821/22/23
Package
20-TSSOP-225 -40 ~ +85
°
C
24-QFN*
Tem. Range
-40 ~ +85
°
C
20-TSSOP-225
APPLICATIONS
Cellular telephone systems : KB8821
Portable wireless communications : KB8822
(PCS/PCN, cordless)
Wireless Local Area Networks (W-LANs)
: KB8823
Other wireless communication systems
BLOCK DIAGRAM
Figure 1. BLOCK DIAGRAM
RF
N Counter
Serial Data Control
Charge
Pump
RF
LD
finRF
foLD
CLOCK
LE
DATA
RF
Phase
Detector
RF
RF
Prescaler
finRF
+
-
CPoRF
finIF
finIF
OSCin
RF
R Counter
IF
R Counter
IF
Prescaler
IF
N Counter
Detector
IF
Phase
Pump
IF
Charge
CPoIF
IF
LD
+
-
foLD
Data Out
Multiplexer
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| KB8822 | FREQUENCY SYNTHESIZER |
| KB8825 | 1.1GHZ DUAL PLL |
| KBE00F005A | 512Mb NAND*2 + 256Mb Mobile SDRAM*2 |
| KBE00F005A-D411 | 512Mb NAND*2 + 256Mb Mobile SDRAM*2 |
| KBE00S003M | 1Gb NAND*2 + 256Mb Mobile SDRAM*2 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KB8822 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FREQUENCY SYNTHESIZER |
| KB8823 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:FREQUENCY SYNTHESIZER |
| KB8825 | 制造商:SAMSUNG 制造商全稱:Samsung semiconductor 功能描述:1.1GHZ DUAL PLL |
| KB8C5 | 制造商:IDEC Corporation 功能描述:DISTR. BOX/SIST. DI DISTR. |
| KB8D | 制造商:IDEC Corporation 功能描述:DISTR. BOX/SIST. DI DISTR. |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。