• Part: ZL49031
  • Manufacturer: Zarlink Semiconductor
  • Size: 373.29 KB
Download ZL49031 Datasheet PDF
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ZL49031 Description

The ZL490xx is a family of high performance DTMF receivers which decode all 16 tone pairs into a 4-bit binary code. These devices incorporate an AGC for wide dynamic range and are suitable for end-to-end signalling. The ZL490x0 provides an early steering (ESt) logic output to indicate the detection of a DTMF PWDN VDD VSS 1 Voltage Bias Circuit Steering Circuit High Group Filter Antialias Filter Dial Tone Filter Low...