CMX993Q3
商品详情
CMX993/CMX993W:RF(I/Q)Quadrature Modulator
Two separate, high performance, RF quadrature modulator ICs: the standard CMX993 and the wide bandwidth CMX993W product variant. The CMX993 and CMX993W are integrated, low voltage IQ modulator suitable for use in applications operating from 30MHz to 1000MHz.
The device integrates two matched double-balanced mixers driven from a buffered and quadrature split local oscillator. The LO frequency is divided by either a factor of 2 or 4. The mixers form an I/Q vector modulator with programmable gain stages offering up to 30dB of gain control in 2.5dB steps. Uncommitted low frequency differential amplifiers are provided for users to configure. This may be used to implement functions such as filtering, differential to single ended signal conversion and level shifting. A digital control interface, C-BUS, (an SPI? compatible interface) allows gain control as well as power management of individual internal blocks to optimize system performance. The C-BUS interface operates from its own supply domain enabling the device to be interfaced to different voltage baseband devices.
The CMX993 and CMX993W devices are supplied in an RF optimized VQFN package.
Block Diagram
- High Performance (30MHz to 1GHz) RF Modulator
- I/Q Modulator
- Wideband Noise Figure: -148dB/Hz
- Noise Floor: -155dBm/Hz
- Programmable 30dB Output Gain Range
- Output Power: +3dBm (PEP)
- Low LO Drive Requirements: -15dBm
- CMX993W - Wide Bandwidth Version
(>50MHz I/Q Bandwidth) - Uncommitted Amplifiers for Filtering and Interfacing
- C-BUS (SPI Compatible) Serial Control/Data Interface
Applications:
- APCO P25, Wireless Data
- ISM Transmitters
- Digital TV/CATV Modulators
- Wireless LAN
- Wireless Local Loop
- IF or RF Modulators
- FSK, GMSK, 4-Level FSK, C4FM, QPSK,
QAM, SSB, OFDM and Multi-carrier Systems - Software Defined Radio (SDR)
- Satellite Communications
- Cellular Picocell/Nanocell Systems
- RF Channel Bandwidths up to 100MHz
Supply Requirement:
- 3.3V
CMX993Q3:RF(I/Q)正交调制器
高性能(30MHz到1GHz)RF 调制器
I/Q 调制器
宽带 噪声指数:-148dB/Hz
本底噪声:-155dBm/Hz
可编程的30dB输出增益范围
输出功率:+3dBm(PEP)
低LO驱动要求:-15dBm
CMX993W-宽的带宽转换(>50MHz I/Q Bandwidth)
可滤波和连接的中立放大器
C-BUS (SPI 兼容)串行控制/数据接口
3.3V 低功耗运行
APCO P25, 无线数据
ISM 发射机
数字TV/CATV 调制器
无线局域网
无线局域回路
IF 或RF 调制器
FSK,GMSK,4-LevelSK,C4FM,QPSK, QAM, SSB, OFDM and Multi-carrier Systems
软件无线电(SDR)
卫星通信
微微蜂窝/纳米细胞系统
RF信道带宽可达到100MHz
CMX993Q3 - 48-pin VQFN
CMX993WQ3 - 48-pin VQFN
一:双向无线通讯芯片.CMX808A FX929B FX919B CMX980A CMX639 FX619 FX609
二: 无线数据传输芯片.CMX989 CMX696 CMX909B FX829 CMX589A CMX469A FX429A
三: 有线通讯芯片.CMX869 CMX868 CMX860详细介绍
提供:FX619,FX609,CMX808,CMX838,CMX883,CMX649,CMX683,CMX469,FX128,CMX138,CMX808,CMX860,CMX909,CMX991,CMX992,CMX993,FX604,CMX624,CMX7042 CML全系列调制解调器。
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