The KWS800 is a high dynamic range IF digitizer that monolithically unites a programmable filter to an ADC. This companion sampled IF (SIF) filter provides anti-aliasing for the internal ADC core while simultaneously offering application-specific filtering needed to address a variety of wireless and wireline market segments. The 256 taps can provide nearly brickwall transition bands with well controlled group delay variation.
The KW800 is a 14 bit ADC with a maximum sampling frequency of 120 MHz. The combination of LNA and AGC provides the flexibility to adjust the NF, gain and linearity for optimum performance.
Undersampling modes of operation are possible, with Nyquist band-selected antialiasing included, offering a variety of frequency translation options. An embedded frequency synthesizer provides the sampling clock to the ADC and the SIF filter. The synthesizer can also provide a low-phase noise LO off chip for RF applications with a mixer.
Features
- 14 bit resolution (ENOB 12.8 – 13.5)
- Sampling Rates (Fs) 120 MHz
- Built-in Anti-aliasing / Image Reject
- Reconfigurable Lowpass/Bandpass filter
- IF Input frequencies can approach 140 % of Fs
- Filter Bandwidth up to 70% of Nyquist (Fs/2)
- 90 nm CMOS Technology
- Up to 80 dB of SFDR
- 1.2 V operation, Optional 1.8 V/2.5 V for IO
- Maximum input power + 6 dBm
- Core power consumption < 250 mW @ 120 MHz Fs
- Synthesizer Clock/Crystal Reference 20-40 MHz
- Field Programmable via I2C or SPI interface
Applications
- GPS Receivers
- Pico Cell Receivers and Repeaters
- Wideband FM / DAB / DVB Receivers
- Wireline / Powerline Receivers
- GSM, EDGE, W-CDMA, LTE, CDMA2000, WiMAX, TD-SCDMA
- WiMAX, TD-SCDMA
- Handheld Scope Meters
- Portable Medical Imaging Systems
- Ultrasound
- Radar
- Software Defined and Cognitive Radio
- IP for integration into client’s ASIC or as a standalone IC
Triad Semiconductor Configurable RF Receiver in 65 nm RF-CMOS
Kaben’s SIF-ADC technology powers the Triad Semiconductor RF-VCA. The RF-VCA is a configurable RF receiver providing flexible antenna to digital reception for RF signals up to 3 GHz. The RF-VCA can be via-configured for a wide range of applications including: GPS, FM tuner, Cellular Basestations, DAB, DVB and military communications.
For information on Triad’s VCA technology please visit: