Copyright © 2011 Sieva Networks. All rights reserved.
Ultra Low Power IP Circuit Blocks
Sieva Networks provides a number of blocks for RF and baseband circuitry such as LNA's, mixers, VCO's, PLL's, op amps, log domain filters, micropower amplifiers, voltage regulators, bandgaps. The focus is on very low power consumption and generally most circuits consume less than 500uA of current at 1.8 nominal voltage. A number of these have already been silicon tested and validated. Support is also provided to port to other processes and line geometries.
SN040
- Centre Frequency of 1GHz
- Tune Bandwidth 150MHz
- Current consumption 625uA
- Designed on 0.18um CMOS process
SN041
- Centre Frequency of 1GHz
- Tune Bandwidth 150MHz
- Current consumption 2mA
- Designed on a 0.18 CMOS process
SN042
- Centre Frequency of 433MHz
- Tune Bandwidth 100MHz
- Current consumption 700uA
SN044
- Centre Frequency of 2450MHz
- Tune Bandwidth 100MHz
- Current consumption 1200uA
SN045
- Centre Frequency of 1500MHz
- Tune Bandwidth 100MHz
- Current consumption 1000uA
Voltage Controlled Oscillator (VCO)
SN095
- Fractional N PLL
- Programmable high speed divider from 40 to 150
- Integrated charge pump, phase frequency detector and VCO
- MASH 1111 Delta Sigma Modulator
- Ultra low power current consumption of 600uA
- Input reference frequency 1-15MHz
SN096
- Fractional N PLL
- Programmable high speed divider from 40 to 150
- Integrated charge pump, phase frequency detector and VCO
- MASH 1111 Delta Sigma Modulator
- VCO with low phase noise
SN097
- Fractional N PLL
- Programmable high speed divider from 40 to 150
- Integrated charge pump, phase frequency detector and VCO
- Output Center frequency of 433MHz
SN098
- Fractional N PLL
- Programmable high speed divider from 40 to 300
- Integrated charge pump, phase frequency detector and VCO
- Output Center frequency of 2450MHz
SN055
- Wide frequency range of operation (100 to 1500MHz)
- Very low power consumption (less than 300uA)
- Conversion gain of -6dB and input 1dp compression point of 2
- Suitable for downconversion and upconversion
SN056
- Suitable for operation from 100kHz to 150MHz
- Active current consumption of 1uA
- Applications include baseband I/Q modulation/demodulation
SN099
- Fractional N PLL
- Programmable high speed divider from 40 to 300
- Integrated charge pump, phase frequency detector and VCO
- Output Center frequency of 1800MHz
SN124
- Dual Modulus (divide by 4/5) prescaler with integrated divide by 2
- Designed on 0.18 CMOS process
- Ultra low current consumption of less than 100uA
- Frequency of operation -100 to 1500MHz
SN125
- Programmable 7 bit divider
- Designed on a 0.18 CMOS process
- Ultra low current consumption of less than 100uA
- Frequency of operation - 10MHz to 600MHz
SN133
- Low current consumption of 3uA at 1.8V
- Less than 1% variation in bandgap voltage over temperature
- Temperature range of operation - -40 to 85C
SN105
- Class F Power amplifier, supports FSK, GMSK and OOK modulation schemes
- Drain efficience @12dBm output power, 915MHz > 60%
- Operating Frequency Range from 899MHz to 935MHz
- Second harmonic with offchip filter <-50dBm at 12dBm output power
SN156
- DC current consumption of less than 6uA
- 25mA output current
- Temperature range of operation - -40 to 85C
- operates with external supply voltage of 1.5 to 3V
UHF Passive and Semi-Passive RFID
- Schottky diode based RF front ends
- frequency of operation from 300MHz to 3GHz
- all integral circuits such as random number generator, clock
recovery circuits, on chip shunt and series voltage regulators,
bandgaps
- very low power designs supported
- Digital state machines for ISO 18000-6B, 18000-6C and other
protocols
SN157
- Log domain filter
- adjustable bandwidth settings
- Low current consumption of less than 10uA
- operates with external supply voltage of 1.5 to 3V
Low Noise Amplifier (LNA)
SN035
- Very low current consumption
- Frequency band of operation 800-1000MHz
- High gain of 37dB
- Adjustable Gain settings
SN036
- Very low current consumption
- Frequency band of operation 430-435MHz
- High gain of 29dB
- Adjustable Gain settings
SN037
- Very low current consumption
- Frequency band of operation 1750-1850MHz
- High gain of 27dB
- Adjustable Gain settings
SN038
- Very low current consumption
- Frequency band of operation 2400-2500MHz
- High gain of 24dB
- Adjustable Gain settings
