PDF CMX994 Data sheet ( Hoja de datos )

Número de pieza	CMX994
Descripción	Direct Conversion Receivers
Fabricantes	Consumer Microcircuits Limited
Logotipo
Hay una vista previa y un enlace de descarga de CMX994 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas
No Preview Available ! CML Microcircuits COMMUNICATION SEMICONDUCTORS CMX994/CMX994A/CMX994E Direct Conversion Receivers CMX994 / CMX994A (lower power consumption) / CMX994E (enhanced performance) D/994_994A_994E/1 September 2015 DATASHEET Provisional Features Applications  Direct conversion receiver family with PowerTrade™  Analogue/digital multi-mode radio flexible power vs. performance modes  Software Defined Radio (SDR) CMX994 - Standard and low power modes  Data telemetry modems CMX994A - Standard and additional low power modes  Satellite communications CMX994E - Enhanced, standard and low power modes  Constant envelope and linear modulation  Rx single conversion to zero IF, near-zero IF or low IF; zero  Rx function compatible with CMX998 IF eliminates image responses Cartesian Feedback Loop Transmitter  Very high mixer IIP2 for practical zero IF receiver  Narrowband e.g. 25kHz, 12.5kHz, 6.25kHz  100MHz to 1000MHz I/Q demodulator (CMX994A/E)  Wideband Data e.g. >1MHz bandwidth 100MHz to 940MHz I/Q demodulator (CMX994) Extended operation down to 50MHz  LNA with gain control  Precise filtering with 1:2:4 bandwidth select control  Mixer Bandwidth up to 20MHz  Local Oscillator LO synthesiser VCO negative resistance amplifier Rx LO divide by 2, 4 or 6 modes Tx LO Output with divide by 1, 2, 4, or 6 modes  3.0V – 3.6V Low power Operation  Small size 40-pin VQFN Package I/Q Signals CMX994 T/R CMX994A C-BUS CMX994E Reset Ref. Osc. Direct Conversion Receiver Rx Enable Tx LO Tx Enable Baseband Signal Processing µC Flash 1 Brief Description The CMX994/CMX994A/CMX994E is a family of direct conversion receiver ICs with PowerTrade™, the ability to dynamically select power vs. performance modes to optimise operating trade-offs. All three devices include a broadband LNA with gain control followed by a high dynamic range, very high IIP2, I/Q demodulator. The receiver baseband section includes amplifiers and precise, configurable bandwidth, baseband filter stages. LO generation is provided by an integer-N PLL and a VCO negative resistance amplifier; an external LO may also be used. LO dividers are provided for flexible multi-band operation. The devices operate from a single 3.3V supply over a temperature range of –40°C to +85°C and are available in a small 40- pin VQFN (Q4) package. Relative to the CMX994 the CMX994A enables a significant reduction in power by allowing LO phase correction to be turned off. A further reduction is made possible by the facility to disable either the I or Q channel. The CMX994E expands on that by adding an enhanced performance mode that features improved intermodulation in the receive path mixers.  2015 CML Microsystems Plc Page 1 of 70 D/994_A_E/1 1 page Direct Conversion Receivers Figure 26 Typical Gain and NF Variation of Demodulator Stages at Low Frequencies Figure 27 Tx Output Level vs. Frequency Figure 28 Typical Tx Output Level (With Divider) vs Temperature Figure 29 Typical Tx Output Level (No Divider) vs. Temperature for Varying LO Input Level Figure 30 C-BUS Timing Figure 31 Q4 Mechanical Outline CMX994/CMX994A/CMX994E 45 46 46 47 58 59 2 History Version Changes 1 First published document as Provisional status Date August 2015 It is recommended that you check for the latest product datasheet version from the Product page of the CML website: [www.cmlmicro.com].  2015 CML Microsystems Plc Page 5 of 70 D/994_A_E/1 5 Page Direct Conversion Receivers CMX994/CMX994A/CMX994E Freq (MHz) 50 100 150 200 250 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 Impedance (Ω-/+jΩ) 347 – j296 208 – j263 129 – j217 93 – j181 72 – j154 58 – j130 49 – j114 42 – j102 37.7 – j91 33.9 – j83 29.7 – j74 27.0 – j66 24.7 – j61 22.8 – j55 21.3 – j50 19.9 – j45 18.7 – j41 17.2 – j37.0 15.7 – j32.9 14.8 – j29.1 S11 Equivalent Parallel Circuit (R//C) 598.9R // 4.5pF 540.7R // 3.7pF 496R // 3.6pF 444.5R // 3.5pF 401.1R // 3.4pF 351R // 3.4pF 318R // 3.4pF 286.5R // 3.3pF 256.3R // 3.3pF 235.3R // 3.3pF 211.8R // 3.4pF 190.6R // 3.4pF 173.1R // 3.5pF 154.9R // 3.5pF 136.7R // 3.6pF 121.5R // 3.7pF 107R // 3.8pF 96.7R // 3.9pF 84.6R // 4.1pF 72R // 4.3pF S22 Impedance (Ω-/+jΩ) Equivalent Parallel Circuit (R//C) 54.4 – j2.4 54.5R // 2.6pF 54.8 + j0.4 54.8R 55.3 + j1.7 55.4R 56.1 + j2.9 56.3R 56.9 + j3.5 57.1R 57.4 + j3.9 57.6R 57.7 + j4.0 58.0R 58.1 + j3.9 58.4R 58.4 + j4.0 58.7R 58.4 + j4.2 58.7R 58.3 + j4.1 58.6R 57.9 + j3.9 58.2R 57.3 + j3.8 57.6R 56.7 + j3.9 57.0R 55.9 + j3.7 56.1R 55.3 + j3.6 55.5R 54.3 + j3.6 54.5R 52.8 + j3.9 53.1R 51.5 + j4.7 51.9R 50.7 + j5.1 51.2R Table 3 LNA S11 and S22 Impedances and Parallel Equivalent Circuit in 50Ω Mode 100Ω Mode Figure 5 LNA S11 (100Ω Mode) Figure 6 LNA S22 (100Ω mode)  2015 CML Microsystems Plc Page 11 of 70 D/994_A_E/1 11 Page

Páginas	Total 30 Páginas
PDF Descargar	[ Datasheet CMX994.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
CMX991	RF Quadrature Transmitter and RF Quadrature/Low IF Receiver	Consumer Microcircuits Limited
CMX992	RF Quadrature Transmitter and RF Quadrature/Low IF Receiver	Consumer Microcircuits Limited
CMX993	Quadrature Modulator	Consumer Microcircuits Limited
CMX993W	Quadrature Modulator	Consumer Microcircuits Limited

Número de pieza	Descripción	Fabricantes
SLA6805M	High Voltage 3 phase Motor Driver IC.	Sanken
SDC1742	12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters.	Analog Devices

DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares,
permitiéndote verlos en linea o descargarlos en PDF.

DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar