IP Blocks

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)
  • FLLs
  • DCOs
  • 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.

 ADPLL Specifications Min. Typ. Max.  Unit
 Output frequency range  4.8 5.0 GHz
 Reference frequency  32 MHz
 Output frequency range resolution  500 kHz
 Frequency modulation deviation resolution  4 kHz
 Phase noise Δf > 1 MHz  -100 dBc/Hz
 Tuning time  20 us
 Power consumption in RX and TX  1 mW
 Area  0.13 mm2
 Process node  55  nm

Electronic Notch

The EN is an electronic duplex filter to avoid that the TX signal is blocking the RX path. This technique is used by several tier one mobile phone components. The same technique can be used to reduce the ACLR and all kinds of TX leakage.

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)
  • DACs
  • Sensitivity & Selectivity improvement systems
  • Demodulators
  • Modulators
  • Radio Processing technologies

 

 

For the implementation of its IP blocks ItoM can choose an optimum mix between:

  • RF analog
  • Mixed-signal
  • Digital
  • 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 Logo 3

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.

Interference Cancellation

  • 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.