(China (Mainland))
Product Summary
MC34118 is a kind of voice swicthed speaker, which includes the necessary amplifiers, attenuators, level detectors and control algorithm. The UTC MC34118 which requiring typically 5mA may be operated from a power supply, or it can be powered from the telephone line.
Parametrics
MC34118 absolute maximum ratings: (1)Supply Voltage: -1~7 V; (2)Voltage at Pin 3: -1~VCC+1 V; (3)Voltage at Pin 12 ( mute): -1~VCC +1 V; (4)Voltage at Pin 13 ( VLC): -1~VCC+0.5 V; (5)Voltage at Pin 9, Pin 21, and Pin 2: -0.5~ VCC+0.5 V; (6)Storage Temperature: -65~+150 ℃.
Features
MC34118 features: (1)Attenuator gain range: 52dB (between Transmit and Receive); (2)For line-powered applications : 3~6.5V low voltage operation; (3)For improved sensitivity :4-point signal sensing; (4)For Transmit and Receive paths: background noise monitors; (5)External resistors set microphone amplifier gain; (6)Mute function included; (7)Chip disable: active or standby operation; (8)During dial tone presence: dial tone detector to inhibit receive idle mode.
Diagrams
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 MC34118 |
Other |
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Data Sheet |
Negotiable |
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MC34118DW |
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IC VOICE SWITCH SPKPHONE 28-SOIC |
Data Sheet |
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