View SNC21300A_4783414.PDF datasheet online --- IC-ON-LINE

Datasheet File OCR Text:

SNC21300A
1-CH H.Q. Speech Controller
===================== CONTENTS =====================
1. 2. 3. 4. 5. INTRODUCTION........................................................................................................... 3 FEATURES ..................................................................................................................... 3 PIN ASSIGNMENT........................................................................................................ 4 BLOCK DIAGRAM ....................................................................................................... 4 FUNCTION DESCRIPTIONS ...................................................................................... 5 5.1 5.2 5.3 5.4 5.5 5.6 5.7 5.8 5.9 5.10 5.11 5.12 6. 7. 8. OSCILLATOR .............................................................................................................. 5 ROM ......................................................................................................................... 5 RAM ......................................................................................................................... 5 POWER DOWN MODE ................................................................................................. 5 SAMPLING RATE COUNTER ........................................................................................ 5 AUTO REPEAT FUNCTION........................................................................................... 5 I/O PORTS .................................................................................................................. 5 IR FUNCTION ............................................................................................................. 6 PWM IO CONTROL .................................................................................................... 6 WATCH DOG TIMER................................................................................................... 6 PUSH-PULL DAC & CURRENT DA OUTPUT............................................................... 7 EVENT MARK............................................................................................................. 8
ABSOLUTE MAXIMUM RATING ............................................................................. 9 ELECTRICAL CHARACTERISTICS ........................................................................ 9 APPLICATION CIRCUIT .......................................................................................... 10 8.1 8.2 GENERAL APPLICATION ............................................................................................ 10 MOTOR APPLICATION ............................................................................................... 11
Ver1.1
1
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
AMENDENT HISTORY
Version Ver1.0 Ver1.1 Date Description
September 4, 2009 First issue.
November 6, 2009 1. Add Current DAC description in page7
Ver1.1
2
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
1. INTRODUCTION
SNC21300A is a one-channel voice synthesizer IC with Push-Pull direct drive circuit. It built-in a 4-bit tiny controller with six 4-bit I/O ports. By programming through the tiny controller in SNC21300A, 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 System Clock is 2MHz, the instruction cycle is 4us 300 seconds voice capacity are provided (@6KHZ sample rate) Built in a 4-bit tiny controller I/O Port Six 4-bit I/O ports P1, P2, P3, P4, P5 and P6 are provided The driving/sink current of P3.2 ~ P3.3 & P4.0~P4.3 is up to 8mA/16mA The IO pins P3.3 or P2.3 can be modulated with 38.5KHz carry signal to implement IR function. 6 PWM output for IO (P3.0~P3.3 & P6.0~P6.1) 128*4 bits RAM are provided Maximum 16k program ROM is provided 912K*10 shared ROM for voice data and program Readable ROM code data Built-in one channel High Quality speech synthesizer Adaptive playing speed from 2.5k-20kHz is provided Automatic repetition Support 5-bit ADPCM and 10 bit PCM format. Built in an 8-level volume control Push-Pull DAC circuit output, can directly connected to Speaker for sound output. 12 bit Push-Pull DA output and 12 bit current DAC output Event Mark function supported. Low-Voltage Detect circuit Watch Dog Timer Reset function.
Ver1.1
3
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
3. PIN ASSIGNMENT
Symbol P10~P13 P20~P23 P30~P33 P40~P43 P50~P53 P60~P63 RST TEST OSC DAON DAOP DACO VDDIO GNDIO VDD GND I/O I/O I/O I/O I/O I/O I/O I I I O O O I I I I Function Description I/O port 1: IO I/O port 2: IO I/O port 3: IO I/O port 4: IO I/O port 5: IO I/O port 6: IO Reset Chip (Active H) Test Pin Oscillation component connection pin Push-Pull output 1 Push-Pull output 2 Current DAC output Positive power supply Negative power supply Positive power supply Negative power supply
4. Block Diagram
ROM
Program/Speech
Address Pointers/ STACK SRAM (128 nibbles)
Timing Generator
OSC
Sampling Rate Counter Watch Dog Timer Voice Synthesizer Push-Pull Circuit Current DAC Circuit IO port 3 IO port 6 IO port 4
Timer ALU PWM IO IO port 1 IO port 2 IO port 5
Ver1.1
4
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
5. FUNCTION DESCRIPTIONS 5.1 Oscillator
System clock define 2MHz, the source provided by external resistor ring oscillator.
5.2 ROM
SNC21300A contains a substantial maximum 912K words (10-bit) internal ROM, which is shared by program and resource data. Program, voice and data are shared within this same 912K words ROM.
5.3 RAM
SNC21300A contains maximum 128 nibble RAM (128 x 4-bits). The 128 nibble RAM is divided into eight pages (page 0 to page 7, 16 nibble RAM on each page). In our programming structure, users can use the instructions, PAGE n (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 makes the IC entering into Stop Mode will stop the system clock for power savings (<3uA @VDD=3V and <6uA @VDD=4.5V.) Any valid data transition (L H or H L) occurring on any IO pin can be used to start the system clock and return to normal operating mode.
5.5 Sampling Rate Counter
The unique sampling rate counter is designed in voice channel 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 architecture yields a high-quality voice synthesis that sounds very close to its original source when played through the same amplifier and speaker circuitry.
5.6 Auto Repeat Function
A voice section can be repeated by the built-in special hardware of SNC21300A without any software effort. The function activated by setting the corresponding bit of a control register. Once the control register was setting, the channel will continue to play the voice section (the Next Section).
5.7 I/O Ports
There are six 4-bit I/O ports P1, P2, P3, P4, P5 and P6. Any I/O can be individually programmed as either input pull low or output. Any valid data transition (H L or L H) of P1, P2, P3, P4, P5 and P6 can reactivate the chip when it is in power-down stage.
Ver1.1
5
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
Port Data
PA D
Port Status
Wea k
To Internal Data Bus
Read Control
I/O Port Configuration Note: (1) Weak N-MOS can serve as pull-low resistor. (2) The driving/sink current of P3.3 ~ P3.2 & P4.0~P4.3 is up to 8mA/16mA
5.8 IR Function
Bit 3 of Mode Register is applied to control the IR function. P33 can be modulated with 38.5KHz square wave before sent out to P3.3 or P2.3 pin. P3.3 and P2.3 out is controlled by Mode1.1. If Mode1.1 set 1 IR is use P2.3, set "0" is use P3.3. The IR signal can be achieved by this modulated signal.
5.9 PWM IO control
SNC21300A has support 6 PWM IO (P3.0~P3.3 & P6.0~P6.1). Each I/O has 8 bit independent duty register, and the 8 bit register are compare with 8 bits counter. If set use PWM IO function and internal counter start at 000H, the mapping I/O will set High. The 8 bits counter increment if the same duty-register, that will reset the mapping IO pin.
5.10 Watch Dog Timer
SNC21300A built-in an internal WDT (Watch Dog Timer). This Watchdog timer would issue resets signal to this chip if it is not cleared before reaching terminal count (128 ms). The watchdog timer is enabled at reset and cannot be disabled.
Ver1.1
6
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
5.11 Push-Pull DAC & Current DA Output
SNC21300A is an advanced chip to be designed having two optimal methods to play out the voices. One is DAC and the other is Push-Pull DAC. Upon user's applications, user can select either DAC or Push-Pull DAC in his design. Please be aware that only one method can be activated at the time. Push-Pull DAC: An 8-level volume control Push-Pull DAC circuit is built-in SNC21300A. The maximum resolution of Push-Pull DAC is 12 bits. Two huge output stage circuits are designed in SNC21300A. With this advanced circuit, the chip is capable of driving speaker directly without external transistors.
DAON
DAOP
Push-Pull DAC Output DAC: A 12-bit current type digital-to-analog converter is built-in SNC21300A
VCC
DACO
1K
DAC Output
Ver1.1
7
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
5.12 Event Mark
This is a new function for SNC21300A series, it allows user to add a special mark in wave data by the voice edit tool "CoolEdit", "Goldwav", "SoundForge". User can insert event tags in anywhere of his wave file and can easy to get this special code to do his special action during voice playing. That means, it should be easily to control the I/O (such as LED or Motor) and other actions to synchronize with voice.
Ver1.1
8
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
6. ABSOLUTE MAXIMUM RATING
Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Symbol VDD-V VIN TOP TSTG Min -0.3 VSS-0.3 0 -55.0 Max 6.0 VDD+0.3 55.0 125.0 Unit. V V o C o C
7. ELECTRICAL CHARACTERISTICS
Item Operating Voltage Standby current Sym. Min. VDD 2.4 ISBY 3 4 6 10 Typ. Max. Unit Condition 3.0 5.5 V 3.0 uA VDD=3V, no load 5.0 VDD=4.5V, no load 300 uA VDD=3V, no load 3.0 uA VDD=3V,VIN=3V 4 mA VDD=3V,VO=2.4V 6 8 16 70 100 3 2.05 mA VDD=3V,VO=0.4V mA VDD=3V,VO=2.4V mA VDD=3V,VO=2.4V mA VDD=3V, Output 1K Sin wave. mA VDD=4.5V, Ouput 1K Sin wave. mA VDD=3V, DACO=0.7V MHz VDD=3V Temp.=25 Min : -3% Max : +3%
Operating Current IOPR Input current of P1~P6 IIH Drive current of IOD P1, P2, P3.0, P3.1, P5, P6 Sink Current of IOS P1, P2, P3.0, P3.1, P5, P6 Drive current of P3.2~P3.3 IOD & P4.0~P4.3 Sink current of P3.2~P3.3 IOS & P4.0~P4.3 Push-Pull current IPP Push-Pull current Drive Current of DACO Oscillation Freq. IPP IOD FOSC
1.98
2.12
Ver1.1
9
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
8. APPLICATION CIRCUIT 8.1 General application
+
3 *1.5AA
C1 104
VDDIO
CVDD OSC SNC21XXX A
R1 220 220K
IO1 IO2 IO3 IO4 IO5
CGND
RST
Battery Box
GNDIO
It is suggested to add a capacitor (C1), 104, between VDD with GND to keep power stable with general application. And this capacitor is strongly suggested to be as close to the chip as possible.
Ver1.1
10
November 6, 2009
SNC21300A
1-CH H.Q. Speech Controller
8.2 Motor application
Separate CPU power path with power path of large current application
R2 10 10 C3 104 C4 104
M CVDD
OSC R1 220 220K Rb1 100 100
+
3* 1.5 AA
C2 104
VDDIO
SNC21XXXA
M
IO1 IO2 IO3 IO4 IO5 CGND
8050 8050
Battery Box
C1 104
Rb2 100 100
RST
GNDIO
Separate CPU GND with large current application GND
There are some suggestions about PCB layout when user use SNC21XXXA series IC with motor applications. (1) The capacitor C1 (104) C2 (104) is strongly suggested to be as close to the chip as possible. (2) It had better let OSC components (R) get close to IC chip. (3) OSC components had better get far away large current applications. (4) Separate IC power path with large current application power path to avoid affect IC working by power drop from large current application. (5) R2 (10)separate VDDIO and CVDD. (6) Let power cable thicker, especially for large current application. (7) C3 and C4 (104) are connected at the positive point and negative point of the motor.
Ver1.1
11
November 6, 2009
SNC21300A
1-CH H.Q. 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.
Ver1.1
12
November 6, 2009

▲Up To Search▲

Price & Availability of SNC21300A

	To Download SNC21300A Datasheet File
If you can't view the Datasheet, Please click here to try to view without PDF Reader .