SKY13323-378LF

The MT8870 is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched capacitor techniques for high and low group filters; the decoder uses digital counting techniques to detect and decode all 16 DTMF tone-pairs into a 4-bit code.

The MT8880 is a monolithic DTMF transceiver with call progress filter. It is fabricated in Mitel’s ISO2- CMOS technology, which provides low power dissipation and high reliability. The DTMF receiver is based upon the industry standard MT8870 monolithic DTMF receiver; the transmitter utilizes a switched capacitor D/A converter for low distortion, high accuracy DTMF signalling. Internal counters provide a burst mode such that tone bursts can be transmitted with precise timing. A call progress filter can be selected allowing a microprocessor to analyze call progress tones. A standard microprocessor bus is provided and is directly compatible with 6800 series microprocessors.

Benefits and features of BGU7005

• Covers the entire GNSS L1 range, 1559 to 1610 MHz
• Noise figure (NF) is equal to 0.85 dB.
• Increase 16.5 dB
• A lot of input Pi(1dB), or 1 dB compression point, is 11 dBm.
• High IP3i out of band of 9 dBm
• 1.5 to 3.1 volts is the supply voltage.
• Consumption of current in power-saving mode is 1 A.
• Optimized performance at 4.5 mA, a low supply current
• Output matching that is integrated
• Only needs one supply decoupling capacitor and one input matching inductor.
• Decoupled DC input and output
• All pins have ESD protection (HBM > 2 kV).
• Temperature-stabilized bias included for simple design
• Small leadless 6-pin package 1.45 mm, 1 mm, and 0.5 mm
• Transit frequency of 110 GHz using SiGe:C technology