Industry's first dual IF VGA supports multi-mode 4G base station transceivers
January 26, 2012 // Paul Buckley
Integrated Device Technology is claiming the industry’s first FlatNoise dual intermediate frequency (IF) variable gain amplifier (VGA) for multi-mode 2G/3G/4G wireless base station transceivers. The company’s devices claim to offer the industry’s best noise figure (4 dB) for maximum gain and virtually no degradation when gain is reduced, improving quality-of-service (QoS) and easing the signal-to-noise ratio (SNR) requirements of the downstream data converter to reduce system cost.
The IDT F1240 and F1241 are dual-channel digitally-controlled IF VGAs featuring IDT’s FlatNoise technology. This technology virtually eliminates noise figure degradation for the critical top 13 dB section of a wide 31 dB gain control range – a stark contrast to other IF VGAs which typically exhibit a dB for dB degradation in noise figure as gain is reduced.
FlatNoise eases the SNR requirements of the system’s data converter, enabling customers to improve signal quality and use a more cost-effective, lower-resolution data converter. For many applications, this allows the customer to downgrade from a 14-bit data converter to a 12-bit data converter with comparable system SNR.
The company's IF VGAs feature extremely low distortion (OIP3 = +49 dBm), allowing for higher front-end gain, improving the receiver’s sensitivity and resulting in additional QoS enhancement. The devices operate over a 10 MHz to 500 MHz frequency range with a typical maximum gain of 20 dB and offer the industry’s lowest power consumption (80 mA per channel). In addition, the IF VGAs are accurate, with a gain step error of only 0.04 dB, improving the system SNR performance even further. A parallel or serial communication interface provides control of a 6-bit (0.5 dB: F1240) or 5-bit (1.0 dB: F1241) resolution, giving designers maximum flexibility.
The IDT F1240 and F1241 are currently sampling to qualified customers and are available in a 5x5 mm 32-pin QFN package.
For further information: www.idt.com/go/RF.
Tower buys Maxim's Texas wafer fab
November 27, 2015
Foundry Tower Semiconductor Ltd. (Migdal Haemek, Israel) is set to buy an 8-inch wafer fab in San Antonio, Texas, from Maxim ...
Deterministic motor control with FPGAs
Smart buildings, smartphones will drive IR detector market
Private ID as a service leverages smartphone-enabled biometrics
Like Micron, SK Hynix rejects Chinese advances
NXP, Freescale merger clears FTC hurdle
November 26, 2015
NXP Semiconductors NV (Eindhoven, The Netherlands) has received clearance from the Committee on Foreign Investment in the ...
Thin film micro-lenses stretch to focus
German battery maker puts squeeze on Tesla's solar storage plans
Report: Abu Dhabi holding talks over GloFo sale
- Battery Size Matters
- Software-Defined Radio Handbook - 11th edition
- Multichemistry Buck Battery Charger Controller
- Automotive Circuit Protection using Littelfuse Automotive TVS Diodes
InterviewCEO interview: InvenSense's Abdi on expanding MEMS horizons
InvenSense Inc. is a MEMS company that has epitomized a fabless approach to a sector that is still highly reliant on a thorough grasp of the manufacturing and packaging processes. We interviewed CEO Behrooz ...
Filter WizardCheck out the Filter Wizard Series of articles by Filter Guru Kendall Castor-Perry which provide invaluable practical Analog Design guidelines.
Linear video channel
READER OFFERRead more
This month, FTDI Chip is giving away six MCU development board packages complete with a dedicated compiler (including a full integrated development environment).
Worth Euro 315 each, the packages include a credit card sized Clicker 2 board for the FT90X 32-bit MCU supplied alongside a powerful dedicated compiler from MikroElektronika.
MORE INFO AND LAST MONTH' WINNERS...
December 15, 2011 | Texas instruments | 222901974
Unique Ser/Des technology supports encrypted video and audio content with full duplex bi-directional control channel over a single wire interface.