HT38A5 [HOLTEK]
12 Melody Music Generator; 12音乐旋律生成器
| 型号： | HT38A5 |
| 厂家： | 
HOLTEK SEMICONDUCTOR INC |
| 描述： | 12 Melody Music Generator |
| 文件： | 总11页 (文件大小：133K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HT38A5
12 Melody Music Generator
Features
·
·
Operating voltage: 2.4V~5.0V
Rang detect
·
·
Operating frequency: 8MHz
Hook
·
·
Two operating mode MCU control mode key control
mode
Mono output
·
·
·
High D/A converter resolution: 16 bits
Polyphonic up to 8 notes
16-pin DIP, 20-pin SOP package
·
·
·
Low voltage detect
Volume control
Hold key
General Description
The HT38A5 is a CMOS VLSI designed for musical in-
struments, especially 12 melody songs. The HT38A5 is
built-in with a controller and an WTS (Wave Table Syn-
thesizer).
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 i t
R
O
M
V
V
D
D
D
D
P
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0
~
P
A
7
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S
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8
-
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2
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0 8 8
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a
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Pin Assignment
P
P
P
P
A
A
A
A
4
5
6
7
2
1
1
1
1
1
1
1
1
1
0
9
8
7
6
5
4
3
2
1
P
P
P
P
N
O
O
N
R
A
A
A
A
A
3
2
1
0
1
2
3
4
5
6
7
8
9
1
P
A
4
P
A
3
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
6
5
4
3
2
1
0
9
P
A
5
P
A
2
P
P
A
A
6
7
P
A
A
1
0
V
S
S
C
P
V
S
S
A
S
C
2
V
S
S
O
S
C
2
V
D
D
D
S
C
1
V
D
D
O
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1
N
C
C
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D
A
R
A
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D
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S
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E
S
T
U
D
T
E
S
T
U
D
0
H
T
3
8
A
5
H
T
3
8
A
5
1
6
D
I
P
-
A
2
0
S
O
P
-
A
Rev. 1.00
1
November 2, 2006
HT38A5
Pad Assignment
P
A
5
P
A
4
P
A
3
P
A
2
1
4
P
P
A
A
1
0
1
7
1
6
1
5
1
3
1
P
P
A
A
6
7
1
2
2
(
0
,
0
)
1
1
O
S
C
2
V
S
S
3
4
V
S
S
A
5
V
D
D
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1
1
0
6
V
D
D
A
8
7
9
E
S
T
E
S
T
A
U
D
Chip size: 2110 ´ 2530 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Pad Coordinates
Unit: mm
Pad No.
X
Y
Pad No.
X
Y
1
2
3
4
5
6
7
8
9
1096.250
985.650
10
11
12
13
14
15
16
17
900.650
900.650
901.625
901.625
697.050
586.450
-588.250
-698.850
-903.425
-903.425
-882.900
-882.900
-831.950
-831.950
-177.390
-65.590
-994.626
-316.774
1006.000
1116.600
1114.025
1114.025
1114.025
1114.025
-650.050
-776.910
-886.910
-1025.350
-1045.600
-1045.600
-1107.950
900.650
Rev. 1.00
2
November 2, 2006
HT38A5
Pad Description
Internal
Connection
Pad Name I/O
Function
Pull-High
or None
PA0~PA7
I/O
Mode select and control pia.
VSSA
VSS
Negative power supply of DAC, ground
Negative power supply, ground
Positive power supply
¾
¾
¾
¾
¾
O
¾
¾
¾
¾
¾
¾
¾
VDD
VDDA
TEST
AUD
DAC power supply
No connection (open)
Audio output for driving a external transistor or for driving HT82V733
Reset input, active low
RES
I
OSC1 and OSC2 are connected to an RC network or a crystal (by mask option)
for the internal system clock. In the case of RC operation, OSC2 is the output ter-
minal for 1/8 system clock. The system clock may come from the crystal, the two
pins cannot be floating.
OSC1
OSC2
I
¾
O
Absolute Maximum Ratings
Supply Voltage ......................... VSS-0.3V to VSS+5.5V
Input Voltage ............................ VSS-0.3V to VDD+0.3V
Storage Temperature .......................... -50°C to 125°C
Operating Temperature ......................... -25°C to 70°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
D.C. Characteristics
Ta=25°C
Test Conditions
Conditions
Symbol
VDD
Parameter
Min.
Typ.
Max.
Unit
VDD
Operating Voltage
Operating Current
2.4
3
8
5
V
¾
¾
No load
IDD
5V
5V
16
mA
¾
f
OSC=8MHz
No load
ISTB
Standby Current (WDT Disabled)
1
¾
¾
mA
System HALT
IOL
VOL=0.5V
I/O Ports Sink Current
5V
5V
5V
5V
5V
5V
5V
9.7
-5.2
11
16.2
-8.7
22
mA
mA
kW
V
¾
¾
44
5
IOH
VOH=4.5V
I/O Ports Source Current
RPH
VIH1
VIL1
VIH2
VIL2
VIL=0V
¾
Pull-High Resistance of I/O Ports
Input High Voltage for I/O Ports
Input Low Voltage for I/O Ports
Input High Voltage (RES)
Input Low Voltage (RES)
3.5
0
¾
1.5
¾
¾
V
¾
¾
4
V
¾
¾
2.5
V
¾
¾
Rev. 1.00
3
November 2, 2006
HT38A5
A.C. Characteristics
Ta=25°C
Test Conditions
Conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VDD
MCU interface
fOSC
fSYS
tWDT
tRES
System Frequency
5V 8MHz crystal
8
MHz
MHz
ms
¾
4
¾
8
System Clock
5V
¾
¾
¾
¾
17
¾
Watchdog Time-Out Period (RC)
External Reset Low Pulse Width
Without WDT prescaler
9
35
¾
1
¾
ms
Function Description
PA0=0, key control mode
PA0=1, MCU control mode
Mode selection
Low voltage detect
PA4=0,(normal) ;PA4=1(low voltage active, program stop)
Key Control Mode
This key chooses and plays one of the 12 stored musical melodies. When the key is
pressed the next melody in the list will be selected and played. When the HOLD key
is pressed the telephone hold function will be activated and when an incoming ring
signal is detected the music will be played.
PA1: Melody select key
Controls the music volume in 8 discrete steps. Each time the key is pressed the vol-
ume will reduce one step at a time until the lowest volume is reached. When the low-
est volume is reached, the next key press will return the volume to its maximum level.
PA2: Volume key
If this key is pressed during a phone conversation the phone will be put on hold and
the caller can listen to the music while waiting. If, when the music is playing, the hand-
set is lifted, the music will immediately stop playing. After this happens the HOLD
function will have no effect for a period of 2 seconds.
PA3: Telephone Hold key
When an incoming 13Hz~90Hz ring signal is detected after a period of 200ms, the
music will automatically start playing. When the incoming ring signal stops, after a pe-
riod of 6 seconds the music will stop playing.
PA6: Ring Detect
PA7: Hook Detect
This line detects the on/off hook condition of the telephone. Only when the telephone
is in an on-hook condition, can the music be chosen and played. If the handset is
lifted to talk, the music will stop playing and the HOLD key will be effective.
Communication with External MCU Control Mode (Clock Mode) Communication with External CPU
PA6:clock pin
PA7:data pin
Clock from external CPU
Data from external CPU
Rev. 1.00
4
November 2, 2006
HT38A5
Timing Chart
D
C
K
T
1
T
2
T
2
B
i
t
0
B
i
t
1
B
i
t
2
B
i
t
3
B
i
t
4
B
i
t
5
B
i
t
6
B
i
t
7
P
a
r
i
t
y
D
A
T
A
3
0
m
s
³
T
1
³
1
0
m
s
³
³
m
Note: 400ms after power up, the device will be ready to communicate with the external CPU using the CLK and DATA
lines.
Communication via the CLK and DATA lines is conducted in a simple manner. The device will obtain its data on
the high going edge of the CLK line. If the device does not receive a complete byte within 50ms then the pres-
ent byte will be discarded and the next byte will then be received.
Even-parity is used for data checking. For the previous 8-bits, if the total number of ²1s² is odd then the parity
bit is set to ²1², otherwise it is set to ²0². If the parity is incorrect then the byte will be discarded.
Data Type (Command)
This command will select and play one of the 12 stored musical melodies. If the chosen melody num-
00h~0bh
ber exceeds the highest number of that stored in the device then the command will be ignored and no
action taken.
40h-4fh
50h
16 level volume control, 40h refers to highest volume
Stop play
Melody List
Command
00h
English Song Name
Toreador Song
01h
Jingle Bells
02h
Chinese New Year
Santa Lucia
03h
04h
My Old Kentucky Home
La Cucaracha
05h
06h
Allegro
07h
I¢m a Little Teapot
Sabre Dance
08h
09h
Happy Birthday to You
Working on the Railroad
Radetzky March
0Ah
0Bh
Rev. 1.00
5
November 2, 2006
HT38A5
Application Circuits
V
D
D
A
m
p
l
i
l
e
r
C
u
r
c
u
i
t
c
a
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H
T
8
2
V
7
3
3
V
D
D
V
D
D
V
D
D
A
S
8
P
K
1
k
W
O
S
C
1
W
A
U
D
8
0
5
0
1
2
0
~
1
5
0
k
T
E
S
T
O
S
C
2
P
A
0
~
P
A
3
V
L
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o
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o
w
:
N
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P
P
A
A
4
5
i
g
h
:
L
o
w
V
o
l
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a
g
e
R
e
s
e
t
E
L
H
n
a
b
l
e
A
m
p
1
0
0
k
o
w
:
N
o
r
m
a
l
P
A
6
C
L
O
C
K
i
g
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:
S
t
a
n
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b
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R
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S
P
A
7
D
A
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A
m
0 . 1 F
V
S
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T
3
8
A
5
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H
T
8
2
V
7
3
3
V
D
D
V
D
D
V
D
D
A
S
8
P
K
1
k
W
W
O
S
C
1
A
U
D
8
0
5
0
1
2
0
~
1
5
0
k
T
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T
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C
2
E
L
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n
a
b
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e
A
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o
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:
N
o
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h
:
S
t
a
n
d
b
y
V
D
D
1
0
k
I
S
C
2
V
D
D
P
A
7
D
E
C
K
-
I
S
O
1
1
0
0
k
V
D
D
2
m
2 F
R
E
S
P
A
6
1
0
k
m
0 . 1 F
2
.
2
k
2
5
0
V
4
7
k
T
I
P
R
I
N
G
H
O
L
D
1
0
k
P
A
4
V
o
l
t
a
g
e
D
e
t
e
c
t
P
P
P
A
A
A
3
2
1
V
O
L
L
H
o
w
:
N
o
r
m
a
l
P
A
0
i
g
h
:
L
o
w
V
o
l
t
a
g
e
R
e
s
e
t
N
A
M
E
V
S
S
H
T
3
8
A
5
Rev. 1.00
6
November 2, 2006
HT38A5
Package Information
16-pin DIP (300mil) Outline Dimensions
A
1
6
9
8
B
1
H
C
D
a
G
E
I
F
Dimensions in mil
Nom.
Symbol
Min.
745
240
125
125
16
Max.
A
B
C
D
E
F
G
H
I
775
260
135
145
20
¾
¾
¾
¾
¾
50
70
¾
100
¾
¾
¾
295
335
0°
315
375
15°
¾
a
¾
Rev. 1.00
7
November 2, 2006
HT38A5
20-pin SOP (300mil) Outline Dimensions
2
0
1
1
A
B
1
1
0
C
C
'
G
H
D
a
E
F
Dimensions in mil
Nom.
Symbol
Min.
394
290
14
490
92
¾
Max.
A
B
C
C¢
D
E
F
419
300
20
¾
¾
¾
¾
¾
50
¾
¾
¾
¾
510
104
¾
4
¾
G
H
a
32
4
38
12
0°
10°
Rev. 1.00
8
November 2, 2006
HT38A5
Product Tape and Reel Specifications
Reel Dimensions
D
T
2
C
A
B
T
1
SOP 20W
Symbol
Description
Dimensions in mm
330±1.0
A
B
Reel Outer Diameter
Reel Inner Diameter
62±1.5
13.0+0.5
-0.2
C
D
Spindle Hole Diameter
Key Slit Width
2.0±0.5
24.8+0.3
-0.2
T1
T2
Space Between Flange
Reel Thickness
30.2±0.2
Rev. 1.00
9
November 2, 2006
HT38A5
Carrier Tape Dimensions
P
0
P
1
t
D
E
F
W
B
0
C
D
1
P
K
0
A
0
SOP 20W
Symbol
Description
Dimensions in mm
24.0+0.3
-0.1
W
Carrier Tape Width
P
E
Cavity Pitch
12.0±0.1
1.75±0.1
11.5±0.1
1.5+0.1
1.5+0.25
4.0±0.1
2.0±0.1
10.8±0.1
13.3±0.1
3.2±0.1
0.3±0.05
21.3
Perforation Position
F
Cavity to Perforation (Width Direction)
Perforation Diameter
Cavity Hole Diameter
Perforation Pitch
D
D1
P0
P1
A0
B0
K0
t
Cavity to Perforation (Length Direction)
Cavity Length
Cavity Width
Cavity Depth
Carrier Tape Thickness
Cover Tape Width
C
Rev. 1.00
10
November 2, 2006
HT38A5
Holtek Semiconductor Inc. (Headquarters)
No.3, Creation Rd. II, Science Park, Hsinchu, Taiwan
Tel: 886-3-563-1999
Fax: 886-3-563-1189
http://www.holtek.com.tw
Holtek Semiconductor Inc. (Taipei Sales Office)
4F-2, No. 3-2, YuanQu St., Nankang Software Park, Taipei 115, Taiwan
Tel: 886-2-2655-7070
Fax: 886-2-2655-7373
Fax: 886-2-2655-7383 (International sales hotline)
Holtek Semiconductor Inc. (Shanghai Sales Office)
7th Floor, Building 2, No.889, Yi Shan Rd., Shanghai, China 200233
Tel: 021-6485-5560
Fax: 021-6485-0313
http://www.holtek.com.cn
Holtek Semiconductor Inc. (Shenzhen Sales Office)
5/F, Unit A, Productivity Building, Cross of Science M 3rd Road and Gaoxin M 2nd Road, Science Park, Nanshan District,
Shenzhen, China 518057
Tel: 0755-8616-9908, 8616-9308
Fax: 0755-8616-9533
Holtek Semiconductor Inc. (Beijing Sales Office)
Suite 1721, Jinyu Tower, A129 West Xuan Wu Men Street, Xicheng District, Beijing, China 100031
Tel: 010-6641-0030, 6641-7751, 6641-7752
Fax: 010-6641-0125
Holtek Semiconductor Inc. (Chengdu Sales Office)
709, Building 3, Champagne Plaza, No.97 Dongda Street, Chengdu, Sichuan, China 610016
Tel: 028-6653-6590
Fax: 028-6653-6591
Holmate Semiconductor, Inc. (North America Sales Office)
46729 Fremont Blvd., Fremont, CA 94538
Tel: 510-252-9880
Fax: 510-252-9885
http://www.holmate.com
Copyright Ó 2006 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek as-
sumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used
solely for the purpose of illustration and Holtek makes no warranty or representation that such applications will be suitable
without further modification, nor recommends the use of its products for application that may present a risk to human life
due to malfunction or otherwise. Holtek¢s products are not authorized for use as critical components in life support devices
or systems. Holtek reserves the right to alter its products without prior notification. For the most up-to-date information,
please visit our web site at http://www.holtek.com.tw.
Rev. 1.00
11
November 2, 2006
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