CD22204
Key Features
- No Front End Band Splitting Filters Required
- Single Low Tolerance 5V Supply
- Three-State Outputs for Microprocessor Based Systems
- Detects all 16 Standard DTMF Digits
- Uses Inexpensive 3.579545MHz Crystal
- Excellent Speech Immunity
- Output in 4-Bit Hexadecimal Code
- Excellent Latch-Up Immunity Pinouts CD22204 (PDIP) TOP VIEW D2 1 D1 2 EN 3 VDD 4 NC 5 14 D4 13 D8 12 DV 11 ATB 10 XIN 9 XOUT 8 VSS
