HT38A5

www.DataSheet4U.com HT38A5 12 Melody Music Generator Features · Operating voltage: 2.4V~5.0V · Operating frequency: 8MHz · Two operating mode MCU control mode key control · Rang detect · Hook · Mono output · High D/A converter resolution: 16 bits · Polyphonic up to 8 notes · 16-pin DIP, 20-pin SOP package mode · Low voltage detect · Volume control · Hold key General Description The HT38A5 is a CMOS VLSI designed for musical instruments, especially 12 melody songs. The HT38A5 is built-in with a controller and an WTS (Wave Table Synthesizer). The HT38A5 has applications in areas such as phone ringtones, high function toys, musical boxes, doorbells etc. Block Diagram 3 2 K ´ 1 6 - b it R O M 8 - B it M C U 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 P A 0 ~ P A 7 O S C 1 O S C 2 R E S V D V S V D V S S D D A S A A U D Pin Assignment P A 4 1 2 3 4 5 6 7 8 9 1 0 P A 5 P A 4 1 2 3 4 5 6 7 8 P A 5 P A 6 P A 7 V S S V D D V D D A T E S T 1 6 1 5 1 4 1 3 1 2 1 1 1 0 9 P A 3 P A 2 P A 1 P A 0 O S C 2 O S C 1 R E S A U D P A 6 P A 7 V S S V S S A V D D N C V D D A T E S T 2 0 1 9 1 8 1 7 1 6 1 5 1 4 1 3 1 2 1 1 P A 3 P A 2 P A 1 P A 0 N C O S C 2 O S C 1 N C R E S A U D H T 3 8 A 5 1 6 D IP -A H T 3 8 A 5 2 0 S O P -A Rev. 1.00 1 November 2, 2006 www.DataSheet4U.com HT38A5 Pad Assignment P A 5 P A 6 1 2 1 7 P A 4 1 6 P A 3 1 5 P A 2 1 4 1 3 1 2 P A 1 P A 0 P A 7 (0 , 0 ) 1 1 O S C 2 V S S 3 4 V S S A V D D V D D A 5 6 7 8 1 0 9 O ...