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LS1240AG-SOP8-TR
LS1240AG-SOP8-TR Electronic Tone Ringer
- Low current consumption.
- Integrated rectifier bridge with zener diodes for overvoltage protection.
- Minimum external circuitry.
- Both frequencies of tone and switching are adjustable by external
- components.
- Integrated voltage and current hysteresis.
US$0.20
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MC34118G-S28-R
MC34118G-S28-R Voice Switched Speaker-Phone IC
- Improved attenuator gain range: 52dB between Transmit and Receive
- Low voltage operation for line-powered applications(3~6.5V)
- 4-point signal sensing for improved sensitivity
- Background noise monitors for both Transmit and Receive paths
- Microphone amplifier gain set by external
- Resistors-Mute function included
- Chip disable for active/standby operation
- On board filter pinned-out for user defined function
- Dial tone detector to inhibit receive idle mode during dial tone presence
- Equivalent to Atmel U4082B
US$0.72
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MC34119G-SO8-R
MC34119G-SO8-R Low Power Audio Amplifier
- Wide operating supply voltage: VCC=2V~16V
- Low quiescent supply current (ICC=2.7mA, typ)
- Power output over 250mW at VCC=6V,
- Load impedance range 8-100Ω
- Low total harmonic distortion (0.5% typ)
- Mute function
- Minimum number of external parts required
US$0.18
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TEA1110AG-S14-R
TEA1110AG-S14-R Telephone Transmission Circuit
- Low DC line voltage; operates down to 1.6V
- Voltage regulator with adjustable DC voltage
- Provides a supply for external circuits
- Symmetrical high impedance inputs (64kΩ)
- Asymmetrical high impedance input (32kΩ)
- DTMF input with confidence tone
- MUTE input for pulse or DTMF dialling
US$0.21
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