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參數(shù)資料
| 型號： | ITM2520 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Cellular/GPS Image-Reject Receiver RF Front-end IC |
| 中文描述： | 蜂窩/ GPS的鏡像抑制接收機射頻前端集成電路 |
| 文件頁數(shù)： | 1/1頁 |
| 文件大?。?/td> | 22K |
| 代理商： | ITM2520 |
This document is a general product description and is subject tochange without notice for improvement
Wisdom
Semiconductor Inc.
For pricing, delivery, and ordering
market@swip.com.cn
Tel) 86-29-8386383
Product Features :
Operating frequency :
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
Small 24-pin LPCC package : 4.0mm
×
4.0mm
×
0.9mm
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 BiCMOSprocess, and is available in a small 24-pin Leadless Plastic Chip Carrier
(LPCC) package.
ITM2520
Cellular/GPS Image-Reject Receiver RF Front-end IC
Applications :
Cellular CDMA/AMPS Mobile Phone
(@ IS-95A/B/C, CDMA2000, CDMA20001X)
800 MHz CDMA and TDMA Receivers
GPS Receiver for E911 and Traveler Assistance
Portable Radio Handset and Equipments
Functional Block Diagram
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2
3
4
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24
7
8
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12
Bias_control
/2
CLNA_IN
CLNA_E
GLNA_IN
GLNA_OUT
VCC_LNA
GMIX_IN
GPS_IF
CDMA_IFP
CDMA_IFN
LOD
FM_IF
CMIX_IN
ITM2520
L
L
M
B
L
T
S
V
R
C
R
C
Available Now
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