HT3834

www.DataSheet4U.com HT3834 36 Melody Music Generator Features · Operating voltage: 2.4V~5.0V · ROSC Operating frequency: 6MHz · Three operating modes for 28-pin package, · Volume control · Hold key · Ring detect · Hook detect · Mono output · High D/A converter resolution: 16 bits · Polyphonic 4 notes · 16/28-pin SOP package MCU control mode, key control mode and manual mode · Dual operating mode for 16-pin package, key control mode and MCU mode · Low voltage detect General Description The HT3834 is a CMOS VLSI designed for musical instruments, especially 36 melody songs. The HT3834 has an integrated controller and a WTS (Wave Table Synthesizer). The HT3834 has applications in areas such as phone ringtones, high function toys, musical boxes, doorbells etc. Block Diagram P A 0 ~ P A 7 P B 0 ~ P B 7 O S C 1 O S C 2 R E S 8 - b it M C U 3 2 K ´ 1 6 - b it R O M 2 0 8 ´ 8 R A M M u ltip lie r /P h a s e G e n e ra l 1 6 - B it D A C A U D IO V D V S V D V S D D A S A S Pin Assignment P B 1 1 2 3 4 5 6 7 8 9 1 0 1 1 1 2 1 3 1 4 P B 0 A U D T E S T V D D A V S S A A U D 1 2 3 4 5 6 7 8 H T 3 8 3 4 1 6 S O P -A V D D A V S S A O S C 2 O S C 1 V S S V D D R E S 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 P A 7 P A 6 P A 5 P A 4 P A 3 P A 2 P A 1 P A 0 O S C 2 O S C 1 V S S V D D R E S N C N C N C 2 8 2 7 2 6 2 5 2 4 2 3 2 2 2 1 2 0 1 9 1 8 1 7 1 6 1 5 H T 3 8 3 4 2 8 S O P -A P B 2 P B 3 P B 4 P B 5 P B 6 P B 7 P A 7 P A 6 P A 5 P A 4 P A 3 P A 2 P A 1 P A 0 Rev. 1.00 1 November 2, 2006 w...