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参数资料
| 型号： | CX74038-71 |
| 厂商： | SKYWORKS SOLUTIONS INC |
| 元件分类： | PLL合成/DDS/VCOs |
| 英文描述： | PLL FREQUENCY SYNTHESIZER, 2600 MHz, CQCC24 |
| 封装： | 4.50 X 3.50 MM, 1 MM HEIGHT, CSP-24 |
| 文件页数： | 1/17页 |
| 文件大小： | 988K |
| 代理商： | CX74038-71 |
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 receiver
Wireless Local Area Network (LAN) systems
Wireless Routers, Wireless Local Loop (WLL) systems
SATCOM Receivers
FEATURES
2.6 GHz maximum operating frequency
800 MHz maximum IF synthesizer
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
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 CX74038 has two package options:
A 20-pin Thin Shrink Small Outline Package (TSSOP)
A 24-pin 3.5 × 4.5 mm Chip Scale Package (CSP)
Figure 1 shows a functional block diagram for the CX74038.
The device package and pinout for the 20-pin TSSOP is shown
in Figure 2 and the device package and pinout for the 24-pin
3.5 x 4.5 mm CSP is shown in Figure 3.
R1
Divider
R2
Divider
Charge
Pump 1
N1
Divider
N2
Divider
Charge
Pump 2
Serial-to Parallel
Interface
MUX
(LD/TEST)
P/P+1
Prescaler
Q/Q+1
Prescaler
P/FD 1
P/FD 2
R1
GND
VDD2_RF
VDD1_RF
GND
CPO_RF
VDD2_IF
VDD1_IF
GND
CPO_IF
SP1
SC1
R2
SP2
SC2
N1
PS
RFIN
FREF
FN
ME
LD_TP
LD
N2
RFINB
IFIN
IFINB
LE
CLK
DAT
C1451
Figure 1. CX74038 Functional Block Diagram
Skyworks Solutions, Inc., Proprietary and Confidential
1
101075F
[781] 376-3000 I FAX [781] 376-3100 I SALES@SKYWORKSINC.COM I WWW.SKYWORKSINC.COM
MARCH 7, 2003
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CX74040 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Transmitter for WCDMA and UMTS Applications|Handset RF ICs:WCDMA |
| CX74041 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CX74041 Receiver for WCDMA. UMTS. and PCS|Handset RF ICs:WCDMA |
| CX74059 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CX74059 Receiver for CDMA. AMPS. and PCS|Handset RF ICs:CDMA / CDMA2000 |
| CX74061 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:CX74061 Receiver for CDMA. AMPS. PCS. and GPS|Handset RF ICs:CDMA / CDMA2000 |
| CX74061-11P | 制造商:SKYWORKS 制造商全称:SKYWORKS 功能描述:Rx ASIC for CDMA, AMPS, PCS, and GPS Mobile Handset Applications |
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