HT3834 Datasheet, PDF (1/16 Pages) Holtek Semiconductor Inc – 36 Melody Music Generator

HT3834
36 Melody Music Generator
Features
· Operating voltage: 2.4V~5.0V
· R_OSC Operating frequency: 6MHz
· Three operating modes for 28-pin 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
· 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
General Description
The HT3834 is a CMOS VLSI designed for musical in-
struments, 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 SC1
O SC2
RES
3 2 K ´ 1 6 - b it
ROM
8 - b it
208´8
M CU
RAM
VDD
VSS
VDDA
VSSA
M u ltip lie r /P h a s e
G e n e ra l
1 6 - B it
DAC
A U D IO
Pin Assignment
AUD
1
VDDA
2
VSSA
3
O SC2 4
O SC1 5
VSS
6
VDD
7
RES
8
16 P A 7
15 P A 6
14 P A 5
13 P A 4
12 P A 3
11 P A 2
10 P A 1
9 PA0
H T3834
1 6 S O P -A
PB1 1
PB0 2
AUD 3
TEST 4
VDDA 5
VSSA 6
O SC2 7
O SC1 8
VSS 9
V D D 10
R E S 11
N C 12
N C 13
N C 14
28 ^{P B 2}
27 ^{P B 3}
26 ^{P B 4}
25 ^{P B 5}
24 ^{P B 6}
23 ^{P B 7}
22 P A 7
21 P A 6
20 P A 5
19 P A 4
18 P A 3
17 P A 2
16 P A 1
15 P A 0
H T3834
2 8 S O P -A
Rev. 1.00
1
November 2, 2006