MT3370B

www.DataSheet.co.kr MT3170B/71B, MT3270B/71B, MT3370B/71B Wide Dynamic Range DTMF Receiver Data Sheet Features Wide dynamic range (50 dB) DTMF Receiver Call progress (CP) detection via cadence indication 4-bit synchronous serial data output Software controlled guard time for MT3x70B Internal guard time circuitry for MT3x71B Powerdown option (MT317xB & MT337xB) 4.194304 MHz crystal or ceramic resonator (MT337xB and MT327xB) External clock input (MT317xB) Guarantees non-detection of spurious tones Ordering Information MT3170/71BE MT3270/71BE MT3370/71BS MT3370/71BN MT3370/71BSR MT3371BNR MT3270/71BE1 MT3171BE1 MT3170BE1 MT3370/BN1 MT3370/71BS1 MT3370/71BSR1 8 Pin PDIP 8 Pin PDIP 18 Pin SOIC 20 Pin SSOP 18 Pin SOIC 20 Pin SSOP 8 Pin PDIP* 8 Pin PDIP* 8 Pin PDIP** 20 Pin SSOP* 18 Pin SOIC* 18 Pin SOIC* *Pb Free Matte Tin **Pb Free Tin/Silver/Copper -40°C to 85°C Tubes Tubes Tubes Tubes Tape & Reel Tape & Reel Tubes Tubes Tubes Tubes Tubes Tape & Reel August 2005 Applications Integrated telephone answering machine End-to-end signalling Fax Machines PWDN VDD VSS ➀ Voltage Bias Circuit Steering Circuit High Group Filter Antialias Filter Dial Tone Filter Low Group Filter Digital Detector Algorithm Code Converter and Latch Digital Guard Time➂ Parallel to Serial Converter & Latch ESt or DStD ACK INPUT AGC Mux SD OSC2 OSC1 (CLK) ➁ Oscillator and Clock Circuit To All Chip Clocks Energy Detection ➀ MT3170B/71B and MT337xB only. ➁ MT3270B/71B and M...