PLL & FLL
ItoM has a long history in designing PLLs and FLLs in BiCMOS and RF CMOS. For low power applications like portable and short-range transceivers and for high performance applications like DAB and DVB-T. ItoM was a pioneer in capacitor bank designs and has been using DCOs for a long time.
- PLLs (linear, wideband Σ delta)
- All Digital PLLs (DTC, TDC)
- Capacitor banks (optimized)
- Digital Phase /Frequency Modulation
NEW! ADPLL (<1mW)
Now ItoM has a extreme low power, All Digital PLL (ADPLL) design in 55nm with the following performance. Optimized for BLE applications.
|Output frequency range||4.8||5.0||GHz|
|Output frequency range resolution||500||kHz|
|Frequency modulation deviation resolution||4||kHz|
|Phase noise Δf > 1 MHz||-100||dBc/Hz|
|Power consumption in RX and TX||1||mW|
RF RX & TX
Full range RF RX + TX IP blocks
ItoM provides its customers with a full range of highly integrated RF IP blocks, such as:
- LNAs (incl. large dynamic range)
- Oscillators (incl. pW extreme low-power)
- PAs & RFDACs 2.4GHz (incl. high efficient PA)
- RF Filters (incl. balun)
- Mixers (incl. harmonic suppression mixer)
- High Q on-chip filtering
- LDOs (incl. wide band flat 25dB PSRR)
- Precise Q-counter (battery management)
These IP blocks can be delivered as part of a larger IP block, or can be delivered stand-alone.
IF & ADC & DAC
- Σ delta ADCs (high dynamic range)
- Dynamic Image Rejection Control
- SAR ADCs (incl. ultra-low power)
- AGC systems (incl. extreme fast)
- Sensitivity & Selectivity improvement systems
- Radio Processing technologies
For the implementation of its IP blocks ItoM can choose an optimum mix between:
- RF analog
- Embedded software
Adaptive Signal Processing
- Sensitivity Improvements 10dB
- Selectivity Improvements 20dB
- Noise Blankers (AM, FM)
- Carrier to Noise Ratio
- Extended Stereo Decoder
- Extended Soft Mute
- Circumstantial Control
- Adjacent Channel Detector
Sensitivity and Selectivity Enhancement (K-Tec) for FM Radio Systems ™
K-Tec This trade mark we call: K-Tec
ItoM has invented a new and revolutionary FM signal handling system that improves the selectivity and sensitivity of FM radio systems significantly. The first release, called K-Tec, improves the sensitivity with 5dB and the nearby (100kHz) selectivity with more than 10dB compared to current state-of-the-art FM demodulators.
These tremendous improvements result in a reception area of FM radios that is three times bigger compared to a standard FM radio system. The reach of reception of a radio station will increase with more than 70%. Examples of the use of K-Tec in FM radio systems are better reception indoor as well as going through a tunnels (better sensitivity) and no annoying interferences of strong, unwanted radio stations (better selectivity).
Because of the increased sensitivity and selectivity, K-Tec is in particular interesting for FM radio in mobile devices like car entertainment systems, mobile phones, portable radios, multimedia players, etc.
- Electronic Notch Filter (cancellation technology)
- Anti-Jamming / Anti-Blocking (cancellation technology)
- Dynamic Image Suppression (suppression technology)
Impulse Noise Blanker
Next to regular narrowband interfererence reception is more and more challenged by wideband impulse-like interfererence. Sources from such interference are for example all kind of electronics in a car. Without a Noise Blanker these can dramatically deteriorate reception quality.
ItoM has advanced algorithms to detect and remove impulse-like interference.
Mirror signal suppression
This invention provides for a first effective mirror or image rejection in phase orthogonal I-Q signal receiving circuits, which may be used on itself, in addition to mirror signal suppression II (see below) and/or or in addition to conventional image rejection methods. The invention is based on the recognition that demodulation of a pair of quadrature IF signals in a receiver which are mutually not precisely equal in amplitude and/or not precisely phase orthogonal, gives rise to a carrier signal in baseband at a frequency of 2*fIF carrying the amplitude and phase mismatch or errors. The larger the amplitude and phase errors, the stronger said 2*fIF carrier signal. According to the invention said 2*fIF carrier signal is being suppressed, therewith eliminating said amplitude and phase mismatch.