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 />
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 />
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 />
Features:
<br /> <br /> Vcc=4.5...5.5 V<br /> <br /> <br /> Icc=5 mA<br /> <br /> <br /> 221-bit EEPROM and 16 bit mask-programmable ROM<br /> <br /> <br /> 104 bit user memory fully compatible with IZ4406:<br /> - 64 bit identification area<br /> - 40 bit counter area including 1 bit for personalization<br /> <br /> <br /> 133 bit additional memory for advanced features<br /> - 4 bit counter backup (anti-tearing flags)<br /> - 1 bit initiation flag for authentication key 2<br /> - 16 bit data area 1 for free user access<br /> - 48 bit authentication key 1<br /> - either 64 bit data area 1 for user defined data or 48 bit authentication key 2<br /> <br /> <br /> EEPROM programming time 5 ms<br /> <br /> <br /> Endurance minimum of 105 write/erase cycles per bit<br /> <br /> <br /> Data retention for minimum of 10 years<br /> <br /> Contact configuration and serial interface in accordance to ISO standard 7816-3<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 />
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 />
Features:
For non-contact plastic card<br />Operating frequency range: 100....150 kHz<br />ROM information capacity: 64 bit<br />External inductor AC voltage value: 3 min and 15 max<br />Data retention with the power off: 5 years min
Features:
<br /> Ucс=3.0...6.5 V<br /> Icc=5.0 mA<br /> Improved Attenuator Gain Range: 52 dB Between Transmit and Receive<br /> Low Voltage Operation for Line-Powered Applications (3.0-6.5 V)<br /> 4-Point Signal Sensing for Improved Sensitivity<br /> Background Noise Monitors for Both Transmit and Receive Paths<br /> Microphone Amplifier Gain Set by External Resistors – Mute Function Included<br /> Chip Disable for Active/Standby Operation<br /> On Board Filter Pinned-Out for User Defined Function<br /> Dial Tone Detector to Inhibit Receive Idle Mode During Dial Tone Presence<br /> Standard 28-Pin Plastic Dip Package and SOIC Package Available<br /> Compatible with IL34119 Speaker Amplifier<br />
