HM9270D datasheet

HM9270D

Part Number	HM9270D
Manufacturer	ELAN Microelectronics Corp
Description	The HM 9270C/D 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 and dial-tone rejection. Digital counting techniques are employed in the decoder to detect and decode ...
Features	• • • • • • • • Complete receiver in an 18-pin package. Excellent performance. CMOS, single 5 volt operation. Minimum board area. Central office quality. Low power consumption. Power-Down mode (HM9270D only). Inhibit-mode (HM9270D only). Pin Configurations HM9270C IN+ IN GS 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 VDD St/GT ESt StD Q4 Q3 Q2 Q1 TOE IN+ IN GS HM9270D 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 VDD St/GT ESt StD Q4 Q3 Q2 Q1 TOE VREF IC* IC* OSC1 OSC2 VSS VREF INH PWDN OSC1 OSC2 VSS * Connect to VSS - 1 - HM 9270C/D DTMF RECEIVER Block Diagram (Figure 1) INH HIGH GR...
Document	HM9270D datasheet pdf (66.00KB)

Part Number	HM9270C
Manufacturer	ELAN Microelectronics Corp
Title	DTMF RECEIVER
Description	The HM 9270C/D is a complete DTMF receiver integrating both the bandsplit filter and digital decoder functions. The filter section uses switched c.
Features	• • • • • • • • Complete receiver in an 18-pin package. Excellent performance. CMOS, single 5 volt operation. Minimum board area. Central office quality. Low power consumption. Power-Down mode (HM9270D only). Inhibit-mode (HM9270D only). Pin Configurations HM9270C IN+ IN GS 1 2 3 4 5 6 7 8 9 18 17.
Document	HM9270C datasheet pdf