TL2272-96

Treasure Link Technology Ltd. TL2272-96 TL2272-96 38 Decoder with One-key Selection Doorbell GENERAL DESCRIPTION The main application area for the TL2272-96 device is for remote control doorbells working together with TL2262. Containing all the functions of the TL2272 decoder and melody generator, the device eliminates the need for customers to incorporate an external op-amp and melody generator IC within their product applications, in the process significantly reducing overall product costs. In addition to being fully compatible with the TL2272 circuitry, the device includes the following features; Internal 2 channel tone generator and current type audio output. FEATURES 1. Operating voltage: 2.4V~5.0V 2. 2 channel dual tone generator 3. On chip RC oscillator 4. Current type D/A output 5. TL2262 encoder pair with 6. Provided one-key sequential selection audio output 7. Tone optional : 1. Ding-Dong Ding-Dong 2. Ding-Ding Ding-Ding 3. Westminster Tunes 4. For Alice 8. 16-pin DIP package BLOCK DIAGRAM OSC1 OSC2 Oscillator SI MOD Buffer Key Input Divider Comparat Address Tone Control AUD TEST VDD VSS OPT TEST 1 A1 -------- A7 * All specs and applications shown above subject to change without prior notice. ( ,) Ver 1.01 Page 1 of 3 Treasure Link Technology Ltd. PIN ASSIGNMENT TL2272-96 A0 A1 A2 A3 A4 A5 A6 A7 VSS TL2272-96 1 18 2 17 3 16 4 15 5 14 6 13 7 12 8 11 9 10 VDD TEST1 OSC2 OSC1 SI AUD TEST N.C. MOD PIN DESCRIPTION Pin No. 1~8 9 10 11 12 13 14 15 16 17 18...