Voice Switched Speakerphone

文件：509.61 Kbytes 页数：28 Pages

Motorola

摩托罗拉

Voice Switched Speakerphone

文件：509.61 Kbytes 页数：28 Pages

Motorola

摩托罗拉

Voice Switched Speakerphone

文件：509.61 Kbytes 页数：28 Pages

Motorola

摩托罗拉

ARCHIVED - Voice Switched Speakerphone

Overview The NXP® MC33219A Voice Switched Speakerphone Circuit incorporates the necessary amplifiers, attenuators, level detectors, and control algorithm to form the heart of a high quality hands–free speakerphone system. Included are a microphone amplifier with mute, transmit and receive attenuator \n• Supply Voltage Range: 2.7 to 6.5 V\n•Attenuator Range: 53 dB\n•Background Noise Monitor for Each Path\n•2 Point Signal Sensing\n•Volume Control Range: Typically 40 dB\n•Microphone and Receive Amplifiers Pinned Out for Flexibility\n•Microphone Amplifier can be Muted\n•Mute and Chip Disable are Lo;

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恩智浦