Intersil CD22859
The CD22859 is a CMOS dual-tone multifrequency (DTMF) (CD22 tone generator for use in dual-tone telephone dialing systems. The device can easily be interfaced to a standard 859) push-button telephone keyboard to provide enabling /Suboperation directly with the telephone lines. The ithic reference oscillator uses an inexpensive 3.579545MHz color SiliTV crystal to create highly stable and accurate tones.| Part No. | CD22859 |
|---|---|
| Datasheet | CD22859 Download |
| Manufacturer |  Intersil |
| Description | Monolithic Silicon COS/MOS Dual-Tone Multifrequency Tone Generator |
| Buy | Stock & Price |
FEATURES
● Mute Drivers On-Chip● Device Power can Either be Regulated DC or Telephone Loop Current
● Use of an Inexpensive 3.579545MHz TV Crystal Provides High Accuracy and Stability for all Frequencies
APPLICATIONS
● For Use In Dual-tone Telephone Dialing Systems Pinout CD22859 (PDIP) TOP VIEW VDD 1 TX 2 C1 3 C2 4 C3 5 VSS 6 OSC1 7 OSC2 8 16 VOUT 15 CD 14 R1 13 R2 12 R3 11 R4 10 RX 9 C4 4-126 CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures. 1-800-4-HARRIS or 407-727-9207 | Copyright © Harris Corporation 1999 CD22859ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VDD - VSS). . . . . . . . . . . . . . . . . . . . . . . -0.5 to 12V Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to VDD 0.5V Power Dissipation, PD TA = -40oC to 60oC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500mW TA = 60oC to 85oC . . . . . Derate Linearly at 1.2mW/oC to 200mW Thermal Information Maximum Junction Temperature . . .
