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ITM2520

更新时间: 2022-11-27 00:12:56
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页数 文件大小 规格书
1页 25K
描述
Cellular/GPS Image-Reject Receiver RF Front-end IC

ITM2520 数据手册

  
For pricing, delivery, and ordering  
market@swip.com.cn  
Wisdom  
Semiconductor Inc.  
Tel) 86-29-8386383  
ITM2520  
Cellular/GPS Image-Reject Receiver RF Front-end IC  
Product Description :  
The ITM2520 is an optimized LNA/Mixer IC for dual-band tri-mode applications. It provides a receiver front-end for cellular  
CDMA/AMPS and GPS functions on a single chip. The LNAs/Mixers for both bands are designed for high gain, high linearity, and  
low noise figure with flexible optimization of performance. The device offers an easy control of linearity and current, using one  
external resistor, as well as a gain control to minimize intermodulation and cross-modulation due to strong jammers. The image-reject  
mixer(IRM) has high image-reject ratio at low current consumption, eliminating external RF SAW filter on GPS signal path. This  
feature saves the foot-print space and manufacturing cost simultaneously. The ITM2520 includes an internal LO frequency divider  
which allows the use of a single VCO for both bands.  
The ITM2520 is fabricated on an advanced SiGe BiCMOS process, and is available in a small 24-pin Leadless Plastic Chip Carrier  
(LPCC) package.  
Product Features :  
• Operating frequency :  
Functional Block Diagram  
• Cellular: 869 ~ 894 MHz  
• GPS: 1540 ~ 1600 MHz  
• Easily adjustable Gain, NF, and IIP3  
• Two step LNA gain control  
• GPS image-reject mixer eliminating RF SAW filter  
• 40dB Gain, 2.2dB NF for GPS signal path  
• Internal LO divider for use of single VCO  
• On-chip Tx-LO buffer  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
CLNA_IN 19  
CMIX_IN  
FM_IF  
ITM2520  
CLNA_E  
20  
21  
Bias_control  
• Small 24-pin LPCC package : 4.0mm × 4.0mm × 0.9mm  
GLNA_IN  
CDMA_IFP  
CDMA_IFN  
GLNA_OUT 22  
VCC_LNA 23  
Applications :  
• Cellular CDMA/AMPS Mobile Phone  
8
GPS_IF  
LOD  
/2  
(@ IS-95A/B/C, CDMA2000, CDMA20001X)  
• 800 MHz CDMA and TDMA Receivers  
• GPS Receiver for E911 and Traveler Assistance  
• Portable Radio Handset and Equipments  
7
24  
GMIX_IN  
1
2
3
4
5
6
This document is a general product description and is subject to change without notice for improvement  
Available Now  

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