概述
数据手册SNC599 概述
Two Channel Direct Drive Speech Controller 双通道直接驱动语音控制器
SNC599 数据手册
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PDF下载SNC599
Two Channel Direct Drive Speech Controller
1 INTRODUCTION
SNC599 is a two-channel voice synthesizer IC with PWM direct drive circuit. It
built-in a 4-bit tiny controller with one 4-bit input port, two 4-bit output ports and three
4-bit I/O ports. By programming through the tiny controller in SNC599, user’s varied
applications including voice section combination, key trigger arrangement, output
control, and other logic functions can be easily implemented.
2 FEATURES
ꢀ Single power supply 2.4V – 5.5V
ꢀ 85 seconds voice capacity are provided(@6KHZ sample rate)
ꢀ Built in a 4-bit tiny controller
ꢀ One 4-bit input port, two 4-bit output ports and three 4-bit I/O ports are provided
ꢀ 128*4 bits RAM are provided
ꢀ 256K*10 ROM size are provided for voice data and program
ꢀ Maximum 16k program ROM is provided
ꢀ Readable ROM code data
ꢀ IR carrier signal is provided
ꢀ Built in a high quality speech synthesizer
ꢀ Adaptive playing speed from 2.5k-20kHz is provided
ꢀ Two independent voice channels (Channel 1 + Channel 2→Buo1,Buo2)
ꢀ Built in a PWM Direct Drive circuit and a fixed current D/A output
ꢀ System clock : 2MHz
ꢀ Low Power Reset
1
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
3 Block Diagram
ROM
Program/Speech
256K×10 bits
Address Pointers/ STACK
Timing
OSC
Generator
SRAM (128 nibbles)
PWM
D/A
IO6
Sampling Rate Counter × 2
Voice
Timer
ALU
Synthesizer
IO1
IO4
IO2
IO3
IO5
4 PIN ASSIGNMENT
Symbol
P13 ~ P10
P23 ~ P20
P33 ~ P30
P43 ~ P40
P53 ~ P50
P63 ~ P60
VDD
I/O Function Description
Bit3 ~ Bit0 of Input port 1
I/O Bit3 ~ Bit0 of I/O port 2
I/O Bit3 ~ Bit0 of I/O port 3
I
O
O
Bit3 ~ Bit0 of Output port 4
Bit3 ~ Bit0 of Output port 5
I/O Bit3 ~ Bit0 of I/O port 6
P
P
I
O
O
O
Positive power supply
Negative power supply
Reset pin (active high)
Oscillator / Crystal Out
Positive Output of PWM or DA output
Negative Output of PWM
GND
RST
OSC
BUO1/VO
BUO2
2
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
5 FUNCTION DESCRIPTIONS
5.1. Oscillator
SNC599 accept RC type oscillator for system clock. The typical circuit diagram for
oscillator is listed as follow.
VCC
r
OSC
RC Oscillator
5.2. ROM
SNC599 contains substantial 256K words (10-bit) internal ROM. Program, voices and
other data are shared with this same 256K words ROM.
5.3. RAM
SNC599 contains 128 nibbles RAM. The 128 nibbles RAM are divided into eight
pages (page 0 to page 7, 16 nibble RAM on each page). In our programming
structure, users can easily define and locate RAM page in the program. For instance,
users can use the instructions, PAGEn (n=0 to 7) to switch and indicate the RAM page.
Besides, users can use direct mode, M0 ~ M15 in the data transfer type instructions, to
access all 16 nibbles of each page.
5.4. Power Down Mode
“End” instruction will power down SNC599 and enable IC to consume fewer current for
power saving. (<3uA @VDD=3V and <5uA @VDD=5V) Please be aware that when
the power down mode is activated in SNC599, any valid data transition (LꢁH or HꢁL)
occurring on any input port (P1) or IO ports (P2, P3 and P6) will lead SNC599 back to
normal operation mode.
5.5. Sampling Rate Counters
2 independent sampling rate counters are dedicated to 2 individual voice channels to
be able to play diverse voices at different sample playing rates. The playing rate can
be adaptively set up among from the wide ranges of 2.5KHz to 20KHz. This feature
makes voice close to its original source and yield the better voice quality.
3
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
5.6. I/O Ports
P1 is a 4-bit input port, P2/P3/P6 are three 4-bit I/O ports and P4/P5 are two 4-bit
output ports. Any bit of P2, P3 and P6 can be programmed as either input or output
port individually. Any valid data transition (HꢁL or LꢁH) of P1, P2, P3 and P6
can reactivate the chip when the chip is in power-down mode.
PAD
To Internal Data Bus
Read Control
Weak
Input Port Configuration (P10~P13)
Port Data
PAD
Port Status
Weak
To Internal Data Bus
Read Control
I/O Port Configuration (P20~P23, P30~P33, P60~P63)
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Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
Port Data
PAD
Port Status
weak
Output Port Configuration (P40~P43, P50~P53)
Note: All weak N-MOS’s can serve as pull-low resistors.
5.7. IR Function
P33 can be modulated with 38.5KHz square wave before sent out to P33 pin. The IR
signal can be achieved by this modulated signal.
38.5KHZ
"1"
PAD
Mode
P33
5.8. DAC & PWM
SNC599 is an advanced chip to be designed having two optimal methods to play out
the voices. One is DAC and the other is PWM. Upon user’s applications, user can
select either DAC or PWM in his design. Please be aware that only one method can
be activated at a time.
DAC: A 7-bit current type digital-to-analog converter is built-in SNC599. The
relationship between input digital data and output analog current signal is listed
in the following table. Also, the recommended application circuit is illustrated as
follows.
5
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
Input data
Typical value of output current (mA)
0
0
1
3/127
…
N
…
127
n*(3/127)
3
VCC
BUO1/VO
1K
DAC output
PWM: A PWM (pulse width modulation) circuit is built-in SNC599. PWM can
convert input digital data into pulse trains with suitable different pulse width. The
maximum resolution of PWM is 7 bits. Two huge output stage circuits are
designed in SNC599. With this advanced circuit, the chip is capable of driving
speaker directly without external transistors. The recommended application
circuit is illustrated as follows.
BUO1/VO
BUO2
PWM Output
6
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
6 ABSOLUTE MAXIMUM RATING
Items
Symbol
VDD-V
VIN
Min
-0.3
VSS-0.3
0
-55.0
Max
6.0
VDD+0.3
55.0
125.0
Unit.
V
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
V
TOP
oC
oC
TSTG
7 ELECTRICAL CHARACTERISTICS
Item
Operating Voltage
Standby current
Sym. Min. Typ. Max. Unit
Condition
VDD 2.4
3.0
2.0
5.0
5.5
-
V
ISBY
IOPR
IIH
-
-
-
-
-
-
-
uA VDD=3V , no load
VDD=4.5V, no load
uA VDD=3V , no load
VDD=4.5V, no load
Operating Current
300
700
-
Input current of
3.0 10.0 uA VDD=3V,VIN=3V
P1, P2, P3, P6
Drive current of
IOD
IOS
IOD
IOS
4
6
5
9
-
-
-
-
mA VDD=3V,VO=2.4V
mA VDD=3V,VO=0.4V
mA VDD=4.5V,VO=3.9V
mA VDD=4.5V,VO=0.4V
P2, P3, P4, P5, P6
Sink Current of
P2, P3, P4, P5, P6
Drive current of
P2, P3, P4, P5, P6
Sink Current of
P2, P3, P4, P5, P6
Drive current of Buo1
Sink Current of Buo1
IOD 100 120
IOS 100 120
IOD 100 120
-
-
-
-
-
-
mA VDD=3V,Buo1=1.5V
mA VDD=3V,Buo1=1.5V
Drive Current of Buo2
Sink Current of Buo2
Oscillation Freq.
mA VDD=3V,Buo2=1.5V
mA VDD=3V,Buo2=1.5V
MHz VDD=3V
IOS
FOSC
Fir
100 120
-
-
2.0
38.5
IR Carrier Frequency
KHz Fosc=2MHz
7
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
8 ROSC Performance
ROSC frequency vs VDD (Typical value, R=120KΩ)
3
2.5
2
120k
1.5
2
3
4.5
5.5
VDD (Voltage)
ROSC frequency vs. VDD (For various R)
3
100k
2.5
2
110k
120k
130k
150k
1.5
2
3
4.5
5.5
VDD (Voltage)
8
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
9 APPLICATION CIRCUIT
D/A Speaker Output
32 Scan Keys
C1
C2
0.1uF
Note: The C1 (0.1uF) between Power and GND should be closed to VDD pin of
SNC599 as possible.
9
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
10 BONDING PAD
P63
P62
P61
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
P60
P53
P52
P51
P50
P43
P42
VDD
GND
P41
P40
P33
P32
P31
P30
P23
(0.00,0.00)
P22
P21
RST
1
2
3
4
5
6
P10
P11
P12
P13
P20
7
8
9
10
11
OSC
SNC599
Note: The substrate MUST be connected to Vss in PCB layout.
10
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
DISCLAIMER
The information appearing in SONiX web pages (“this publication”) is believed to be
accurate.
However, this publication could contain technical inaccuracies or typographical errors.
The reader should not assume that this publication is error-free or that it will be
suitable for any particular purpose. SONiX makes no warranty, express, statutory
implied or by description in this publication or other documents which are referenced
by or linked to this publication. In no event shall SONiX be liable for any special,
incidental, indirect or consequential damages of any kind, or any damages whatsoever,
including, without limitation, those resulting from loss of use, data or profits, whether or
not advised of the possibility of damage, and on any theory of liability, arising out of or
in connection with the use or performance of this publication or other documents which
are referenced by or linked to this publication.
This publication was developed for products offered in Taiwan. SONiX may not offer
the products discussed in this document in other countries. Information is subject to
change without notice. Please contact SONiX or its local representative for
information on offerings available. Integrated circuits sold by SONiX are covered by
the warranty and patent indemnification provisions stipulated in the terms of sale only.
The application circuits illustrated in this document are for reference purposes only.
SONIX DISCLAIMS ALL WARRANTIES, INCLUDING THE WARRANTY OF
MERCHANTABILITY OR FITNESS FOR ANY PURPOSE. SONIX reserves the right
to halt production or alter the specifications and prices, and discontinue marketing the
Products listed at any time without notice. Accordingly, the reader is cautioned to
verify that the data sheets and other information in this publication are current before
placing orders.
Products described herein are intended for use in normal commercial applications.
Applications involving unusual environmental or reliability requirements, e.g. military
equipment or medical life support equipment, are specifically not recommended
without additional processing by SONIX for such application.
11
Ver: 1.3
August 26, 2003
SNC599
Two Channel Direct Drive Speech Controller
GREEN VOICE
12
Ver: 1.3
August 26, 2003
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