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參數(shù)資料
| 型號(hào)： | CX74038-12 |
| 廠商： | SKYWORKS SOLUTIONS INC |
| 元件分類： | XO, clock |
| 英文描述： | 2.6 GHz/800 MHz Dual Fractional-N/lnteger-N Frequency Synthesizer |
| 中文描述： | PLL FREQUENCY SYNTHESIZER, 2600 MHz, PDSO20 |
| 封裝： | 6.5 X 4.4 MM, 1 MM HEIGHT, TSSOP-20 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 114K |
| 代理商： | CX74038-12 |
Skyworks Solutions, Inc. Phone [781] 376-3000 Fax [781] 376-3100 sales@skyworksinc.com www.skyworksinc.com
101075I Skyworks Proprietary and Confidential information Products and product information are subject to change without notice January 31, 2005
1
DATA SHEET
CX74038: 2.6 GHz/800 MHz Dual Fractional-N/lnteger-N
Frequency Synthesizer
Applications
Multi-slot GSM/DCS
PCS/W-CDMA
Portable communication systems
Dual-mode cellular telephone systems
Spread spectrum receivers
Wireless LAN systems
Wireless routers and WLL systems
SATCOM receivers
Features
Maximum operating frequency: 2.6 GHz
Maximum IF synthesizer frequency: 800 MHz
Supply voltage as low as 2.6 V
Fast frequency settling time with fractional-N operation
Internal fractional spur reduction
Programmable charge pump currents
Digital lock detector
Power saving at lower frequency
TSSOP (20-pin, 6.5 x 4.4 x 1.0 mm) package
Description
The Skyworks CX74038 is a complete, low-power
2.6 GHz/800 MHz dual frequency synthesizer. The device provides
both Radio Frequency (RF) channels and Intermediate Frequency
(IF) channels. Fractional-N operation offers low phase noise, fast
settling time, and low spurious tones for RF channels. A standard
integer-N division is used for IF channels.
The three-wire serial interface provides programmable control of
the frequency synthesizer to support dual-conversion
transceivers.
The 20-pin Thin Shrink Small Outline Package (TSSOP) device
package and pin configuration are shown in Figure 1. A functional
block diagram of the CX74038 is shown in Figure 2.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
VDD1_RF
VDD2_RF
CPO_RF
GND
FREF
GND
LD_TP
VDD1_IF
VDD2_IF
CPO_IF
C1452
GND
IFIN
IFINB
GND
LE
DAT
CLK
RFIN
RFINB
Figure 1. CX74038 Pinout – 20-Pin TSSOP
(Top View)
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