Function:
Read/write transponder mifare IC at 13.56 MHz
Features:
For non-contact plastic card<br />ISO 14443A<br />Carrier operating frequency: 13.56 MHz<br />Amplitude modulation<br />Cres=100 pF<br />EEPROM capacity: 1 Kb, organized in 16 sectors with 4 blocks each<br />Block size: 128 bit<br />Protection of access to each sector with individual keys<br />Exchange rate: 106 kb/s<br />Guaranteed data retention with the power off: 10 years
Features:
<br /> VLN=3.3…4.1 V (IL=15 mA)<br /> VLN=11.0… 15.0 V (IL=100 mA)<br /> 7 Capacitors & Resistors<br /> Low Voltage Operating <br /> DTMF signal input with confidence tone<br /> Mute input for DTMF dialing<br /> Line loss compensation (line current dependent) for microphone and earpiece amplifiers<br /> Gain control curve adaptable to exchange supply<br /> DC line voltage adjustment facilit<br />
Function:
Multi-Standart CMOS Single Chip Telephone IC with Dual Soft Clipping
Features:
<br /> Line/speech circuit, LD/MF repertory dialler and tone ringer on one 28 pin CMOS chip<br /> Operating range from 13 to 100 mA (down to 5mA with reduced performance)<br /> Soft clipping to avoid harsh distortion<br /> Volume control of receive signal<br /> Line loss compensation selectable by pin option<br /> Low noise (max. - 72 dBmp)<br /> Real or complex impedance<br /> NET 4 compatible.<br /> LD/MF switchable dialling<br /> Pacifier tone during programming<br /> 31 digit last number redial<br /> Sliding cursor protocol with comparison<br /> Pause key for access pause or wait function<br /> 3 flash keys, 100 ms, 280 ms and 375/600 ms<br /> On chip MF filter (CEPT CS 203 compatible)<br /> Ring frequency discrimination<br /> 3-tone melody generator<br /> Oscillator Frequency (Resonator: Murata CSA 3.58MG312AM)-3.58MHz<br /> 4х4…4х8 Keyboard<br />
Function:
Low Voltage Transmission Circuit with Dialer Interface
Features:
<br /> Low DC line voltage; operates down to 1.6 V<br /> Line operation current range 10…140 mA<br /> Icc £ 1.35 mA<br /> Voltage gain range:<br /> microphone amplifier 11…52 dB<br /> telephone amplifier 20…31 dB<br /> Voltage regulator with adjustable static resistance<br /> Provides supply for external circuits<br /> Symmetrical high-impedance inputs<br /> (64 kW) for dynamic, magnetic or piezoelectric microphones<br /> Asymmetrical high-impedance inputs (32 kW) for electret microphones<br /> DTMF signal input with confidence tone<br /> ¨ Mute input for pulse or DTMF dialing<br /> Receiving amplifier for dynamic, magnetic or piezoelectric earpieces<br /> Large gain setting range on microphone and earpiece amplifiers<br />
