PDF HMC173MS8 Data sheet ( Hoja de datos )

Número de pieza	HMC173MS8
Descripción	GaAs MMIC VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz
Fabricantes	Hittite Microwave Corporation
Logotipo
Hay una vista previa y un enlace de descarga de HMC173MS8 (archivo pdf) en la parte inferior de esta página. Total 6 Páginas
No Preview Available ! MICROWAVE CORPORATION HMC173MS8 GaAs MMIC VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz FEBRUARY 2001 Features General Description SINGLE POSITIVE VOLTAGE CONTROL: 0 to +3V HIGH ATTENUATION RANGE: >50 dB @ 0.9 GHz The HMC173MS8 is a miniature absorp- tive voltage variable attenuator in an 8- lead MSOP package. The device oper- 2 HIGH P1dB COMPRESSION POINT: +16 dBm ates with a positive supply voltage, and a positive control voltage. Unique features ULTRA SMALL PACKAGE: MSOP include a high dynamic attenuation range, and excellent power handling performance through all attenuation states. The HMC173MS8 is ideal for operation in wire- less applications between 800 MHz and 1600 MHz. 1.7 to 2.0 GHz operation is possible, with a reduced maximum attenu- ation of 30 dB and increased VSWR. The HMC173MS8 can be used with an exter- nal driver circuit for improved linearity of attenuation. Guaranteed Performance Vdd = +4.0 Vdc, 50 Ohm System, -40 to +85°C Parameter Min Typical Max Units Insertion Loss (Min. Atten.) (V = 0.0 Vdc) CTL 800-1000 MHz 1000-1600 MHz 1600-2000 MHz 1.8 2.3 dB 2.6 3.1 dB 3.2 3.7 dB Attenuation Range (VCTL = 0 to +3 V) 800-1000 MHz 1000-1600 MHz 1600-2000 MHz 45 27 25 52 32 30 dB dB dB Flatness (Peak to Peak) Return Loss (VCTL = 0 to +3 V) 800-1000 MHz 1000-1600 MHz 800-1000 MHz 1000-1600 MHz 1600-2000 MHz ± 0.15 ± 0.25 6 12 58 57 dB dB dB dB dB Input Power for 0.1 dB Compression (825 MHz) Min Atten. Atten.>2.0 19 dBm 9 dBm Input Power for 1.0 dB Compression (825 MHz) Min Atten. Atten.>2.0 21 25 10 16 dBm dBm Input Third Order Intercept 825 MHz, two tones @ +5.0 dBm Switching Characteristics tRISE, tFALL (10/90% RF) tON, tOFF (50% CTL to 10/90% RF) Min Atten. Atten.>2.0 800-2000 MHz 30 37 15 21 1.0 1.2 dBm dBm µS µS 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 2 - 26 Fax: 978-250-3373 Web Site: www.hittite.com 1 page MICROWAVE CORPORATION HMC173MS8 HMC173MS8 VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz FEBRUARY 2001 Attenuation Linearizing Control Circuit For The HMC173MS8 Voltage Variable Attenuator A driver circuit to improve the attenuation linearity of the HMC173MS8 can be implemented with a simple op-amp configuration. A breakpoint linearization circuit will scale the voltage supplied to the control line of the HMC173MS8, so that a more linear attenuation vs. control voltage slope can be achieved. A -5V and +5V supply is required. 2 Diode and resistor values which define the op-amp gain, and breakpoint were selected to optimize a measured production lot of attenuators at 825 MHz. R7 may be varied to optimize the performance of any given attenuator. If the input voltage to the linearizing circuit will not drop below 1.0V, then R9 and D2 may be omitted, and this will greatly reduce the overall power consumption of the driver circuit. The linearizing circuit has been optimized for 825 MHz attenuation applications. A similar approach may be used at other frequencies by adjusting RI - R9 resistor values. Required Parts List Part AD822 R1 R2 R3 R4 R5 R6 R7 R8 R9 D1, D2 Description Op-Amp 10K ohms 200K ohms 7.5K ohms 39K ohms 220K ohms 91K ohms 910 ohms 51 ohms 100 ohms LL4148 D-35 Manufacturer Analog Devices Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic Panasonic Digikey Schematic 0 VCTL IN R8 0 R6 R5 R1 R7 +5 -5V 3 + 7 U3 V+ AD820/AD 2 _ V- 4 6 -5V R2 R3 D1 R4 +5V R9 D2 VCTL OUT Return Loss vs. Control Voltage @ 825 MHz -12 -13 -14 Without Linearizer -15 -16 With Linearizer -17 -18 -19 0.5 1 1.5 2 2.5 CONTROL VOLTAGE (Vdc) 3 Attenuation vs. Control Voltage @ 825 MHz 0 -10 Without Linearizer -20 With Linearizer -30 -40 -50 -60 0 12 CONTROL VOLTAGE (Vdc) 3 12 Elizabeth Drive, Chelmsford, MA 01824 Phone: 978-250-3343 2 - 30 Fax: 978-250-3373 Web Site: www.hittite.com 5 Page

Páginas	Total 6 Páginas
PDF Descargar	[ Datasheet HMC173MS8.PDF ]

Hoja de datos destacado

Número de pieza	Descripción	Fabricantes
HMC173MS8	GaAs MMIC VOLTAGE VARIABLE ATTENUATOR 800-2000 MHz	Hittite Microwave Corporation

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