SNC710

SNC710 16-bit Voice Engine ======== 1. 2. 3. 4. 4.1 4.2 4.3 4.4 4.5 4.6 5. 6. 7. 7.1 7.2 7.3 7.4 8. Contents ======== INTRODUCTION......................................................................................................................... 3 FEATURES ................................................................................................................................... 3 PIN ASSIGNMENTS.................................................................................................................... 4 SYSTEM DESCRIPTIONS ......................................................................................................... 5 CONNECTION............................................................................................................................... 5 MEMORY MAPPING ..................................................................................................................... 6 SYSTEM CLOCK ........................................................................................................................... 6 I/O PORT ..................................................................................................................................... 7 TIMER/COUNTER ......................................................................................................................... 8 DAC & PWM............................................................................................................................. 8 ABSOLUTE MAXIMUM RATINGS ....................................................................................... 10 ELECTRICAL CHARACTERISTICS .................................................................................... 10 APPLICATION CIRCUIT ........................................................................................................ 11 3V/16M CRYSTAL .................................................................................................................... 11 3V/16M ROSC ......................................................................................................................... 12 4.5V/16M CRYSTAL ................................................................................................................. 13 4.5V/16M ROSC ...................................................................................................................... 14 BONDING PAD .......................................................................................................................... 15 Ver. 1.4 1 July 30, 2003 SNC710 16-bit Voice Engine AMENDENT HISTORY Version Ver 1.1 Ver 1.2 Ver 1.3 Date December 3, 2002 March 20, 2003 April 2, 2003 V1.1 first issue Add application circuit Page4, 15: Wording modification Update application circuit Ver 1.4 July 30, 2003 Page5: Wording modification (and SNC710 allows user to connect totally 2 external mask ROMs Description Ver. 1.4 2 July 30, 2003 SNC710 16-bit Voice Engine 1. INTRODUCTION The SNC710 is a powerful voice engine, which is based on16-bit fixed-point DSP architecture. This chip embedded 32K words hi-performance ROM and 2K words RAM. This internal ROM is used to implement software synthesizer in order to provide various flexible sound effects for users, such as 2kbps~24kbps voice compression, 4-CH wave-table melody etc…. Furthermore, the SNC710 also built-in a SONiX’s mask ROM interface, all the user’s program and voice data should be stored in external mask ROM. And SNC710 can execute user’s program from this external mask ROM. 2. FEATURES ♦ ♦ ♦ ♦ ♦ ♦ ♦ Power supply: 2.4V ~ 3.6V (for 2 battery application) 3.6V ~ 5.1V (for 3 battery application) Built-in a 16-bit DSP (Very Light Structure) Software-based voice/melody processing Rich Function Instruction Set 16MHz crystal or R-C type oscillator for system clock 8 MIPS CPU performance I/O Ports: − 16 I/O pins (P0.0~P0.15) and 8 input pins (P1.0~P1.7) − P0.15 with IR carrier signal RAM size: 2K*16 bits High performance program ROM: 32K*16 Watch-Mode for real time clock (32768HZ clock source) 9 Interrupt Sources − 4 for Internal Timer (timer0, 1, 2 and RTC) − 4 for External interrupt(P0.0~P0.3) − 1 for DA or PWM Three 8-bit timer with auto-reload function Built in a 10-bit PWM Direct Drive circuit and a fixed current D/A output Sampling Rate: 4KHz ~16KHz Built-in software voice synthesizer (multiple bit-rate solution from 2Kbps ~ 24Kbps @8K sampling rate) Low Voltage Reset ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ Ver. 1.4 3 July 30, 2003 SNC710 16-bit Voice Engine 3. PIN ASSIGNMENTS Symbol P0.0~P0.15 P1.0~P1.7 VDD GND CVDD BP0 BN0 VO0 XIN/VR1 XOUT/VR2 LXIN LXOUT CKSEL ALECLK CEB READY CLKIN CEIN AD[0..7] RST TestM EXTM I/O I/O I I I I O O O I I/O I O I O O I/O I I I/O I I I Function Description I/O Port 0 Input Port 1 Positive power supply for digital I/O pad Negative power supply for digital I/O pad &core Positive power supply for DSP core & AD bus interface PWM output 1 PWM output 2 DA0 converter output High clock crystal input /RC oscillator input High clock crystal output/RC oscillator input Low clock oscillator input Low clock oscillator output Crystal/RC oscillator system clock select System Clock output External ROM Enable , active low Data Ready(I)/ Reset(O) Bus system clock in External ROM enable in ROM Address/Data Bus (AD Bus) Chip reset (active low) TEST pin External ROM Share Mode Ver. 1.4 4 July 30, 2003 SNC710 16-bit Voice Engine 4. SYSTEM DESCRIPTIONS 4.1 Connection Mask ROM #1 BS0 BS1 BS2 BS3 BS4 ALECLK READY D[0..7] Mask ROM #2 BS0 BS1 BS2 BS3 BS4 ALECLK READY D[0..7] CE\ D[0..7] ALECLK READY CLKIN SNC710 Figure-1 The SNC710 is a ROM-less DSP architecture, but it still built-in 32K hi-speed ROM for software voice synthesizer. All the user’s program and voice data are stored in external mask ROM that provided by SONiX. In Figure-1, show out the system connection between SNC710 and external mask ROM. Each mask ROM both has several bank select pins (BSn) to specify the memory region, and SNC710 allows user to connect totally 2 external mask ROMs. The SNC710 built-in an 8-bit AD (address/data) bus, which connect to SONiX’s mask ROM. And SONiX’s mask ROM provides encryption code function to protect user’s program to avoid illegal copy. In SONiX’s compiler system, user can assign his own ID-Code to protect his program and data. Ver. 1.4 5 CE\ CE\ July 30, 2003 SNC710 16-bit Voice Engine 4.2 Memory Mapping The SNC710 provides totally 24-bit address for mask ROM addressing. The whole ROM area is divided into 8 pages, each page’s addressing ability is 32M bits (2M words). The first ROM page is reserved for system. It built-in 32K words high speed ROM internally for Voice decompressed algorithm. The actual addressing capability free for user is 224M bits (14M words). The memory mapping of external mask ROM is shown as bellow: Reserved for System 0x0200000 32K words (inside SNC710) 2M words (32M bits) 0x0000000 0x0007FFF 0x0008000 14M words (224M bits) 0x01FFFFF Free for user 0x0FFFFFF Table-1 4.3 System Clock The system clock source also can be selected from 16MHZ Rosc. For the ROSC, user should connect two resistors in the pin “XIN” and “XOUT” instead of 16MHZ crystal. Beside, the clock source select pin “CKSEL” also should be connected to VDD for ROSC. In order to get an accurate system clock by ROSC, the real time clock source is recommended to connect a 32768HZ crystal for system clock calibration. 39 XIN LXIN 43 LOUT 44 R2 110K 38 XOUT Y1 75K 32768HZ C1 C2 R1 Ver. 1.4 6 July 30, 2003 15pF 15pF SNC710 16-bit Voice Engine 4.4 I/O Port SNC710 provides one a 16-bit I/O port and an 8-bit input port for user application (P0.0~P0.15, P1.0~P1.7). The input pull high resistor of each pin can be programmed by Port Pull-High register. The direction of I/O port is selected by Port Direction register. The Port0 (P0.0~P0.15) and Port1 (P1.0~P1.7) can wake the chip up from the stop mode and watch mode. And P0.15 Modulated with a carry signal Pull-Up Resister Pull-Up Select In/Out Control PAD Latch to internal bus In/Out Control I/O Configuration of P0.0~P0.15 Pull-Up Resister Pull-Up Select PAD Digital In Input Control Input Port Configuration of Port 1 (P1.0~P1.7) Ver. 1.4 7 July 30, 2003 SNC710 16-bit Voice Engine IREN P0.15 Overflow Timer2 2 P0.15 Modulated with a carry signal I/O Pad 4.5 Timer/Counter SNC710 provides three 8-bit timer/event counters (T0/T1/T2). Each timer is 8-bit binary up-count timer with pre-scalar and auto-reload function. Timer 0 (T0) is used when voice playing, so user should avoid to use T0. (system clock)/2* /2 /4 /8 Enable TnC (8-bit) If equal, Time out MU 8-bit Up Counter clear comparator /256 Pre-scalar Auto-reload 4.6 DAC & PWM To play out voices, SNC710 contains two different solutions, DAC and PWM, for the users’ applications. The user can choose one of these two solutions in his design. Only one function can be activated at one time. DAC: A 10-bit current type digital-to-analog converter is built-in SNC710. The relationship between of input digital data and output analog current signal is listed in the following table. Also, the recommended application circuit is illustrated as follows. Ver. 1.4 8 July 30, 2003 SNC710 16-bit Voice Engine Input data 0 1 … N … 1024 Typical value of output current (mA) 0 3/1024 n*(3/1024) 3 PWM: A PWM (pulse width modulation) circuit is built-in SNC710. PWM can convert input digital data into pulse trains with suitable different pulse width. The maximum resolution of PWM is 10 bits. Two huge output stage circuits are included in SNC710. Both of them are capable of driving speaker directly. The recommended application circuit is as follows. VDD SPEAKER 24 8050 1K VO SPEAKER 44 46 BP0 BN0 DAC output PWM output Ver. 1.4 9 July 30, 2003 SNC710 16-bit Voice Engine 5. ABSOLUTE MAXIMUM RATINGS Items Supply Voltage Input Voltage Operating Temperature Storage Temperature Symbol VDD-V VIN TOP TSTG Min -0.3 GND-0.3 -20.0 -55.0 Max 6.0 VDD+0.3 70.0 125.0 Unit. V V o C o C 6. ELECTRICAL CHARACTERISTICS Item Operating Voltage Standby current Operating Current Input current of P0, P1 Drive current of P0 Sink Current of P0 Drive current of Buo1 Sink Current of Buo1 Drive Current of Buo2 Sink Current of Buo2 Oscillation Freq. (crystal) Sym. Min. Typ. Max. Unit Condition VDD 2.4 3.6 V *1. VDD 3.6 5.1 V *2. ISBY 2.0 uA VDD=3V, no load IOPR 5 mA VDD=3V, no load IIH 10.0 uA VDD=3V,VIN=3V IOD 10 mA VDD=3V,VO=2.4V IOS 12 mA VDD=3V,VO=0.4V IOD 100 120 mA VDD=3V,Buo1=1.5V IOS 100 120 mA VDD=3V,Buo1=1.5V IOD IOS FOSC 100 100 120 120 16.0 mA VDD=3V,Buo2=1.5V mA VDD=3V,Buo2=1.5V MHz VDD=3V Note: 1. For 2 batteries application. 2. For 3 batteries application, user should add 1 resister between power and CVDD pin of chip. Ver. 1.4 10 July 30, 2003 SNC710 16-bit Voice Engine 7. APPLICATION CIRCUIT 7.1 3V/16M Crystal 3V power supply with 16M crystal input and PWM output VDD3V U1 9 45 VDD3V 58 220K 51 49 0.1uF 48 20 15pF 16MHZ SPEAKER 15pF 44 46 24 23 25 TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8 10 11 14 15 16 17 18 19 BP0 BN0 VO AVDD AGND P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 RST TEST VDD VDD VDD SNC710 CVDD CVDD CVDD LXIN 12 33 53 22 47uF AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND GND GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 U1 LXOUT P0.0 21 50 54 55 56 57 60 61 62 1 2 3 4 5 6 7 8 42 41 40 39 37 36 35 34 32 31 30 29 28 VDD3V 330 330 330 330 330 330 330 330 CKSEL P0.1 EXTM P0.2 P0.3 XIN P0.4 P0.5 XOUT P0.6 P0.7 P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 CE_ CEIN_ READY ALE_CLK CLKIN 26 27 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#1 0x200000-0x27FFFF SR008_0 3V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 U2 VDD3V Extension ROM card VDD3V VDD3V CONN 18 CONN 18 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND VDD3V GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ROM Interface AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#2 0x280000-0x2FFFFF 13 38 43 47 52 59 GND GND GND GND GND GND SR008_1 VDD3V SNC710 Main Board Extension ROM board Ver. 1.4 11 July 30, 2003 VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC SNC710 16-bit Voice Engine 7.2 3V/16M ROSC 3V power supply with 16Mhz ROSC and PWM output VDD U1 9 VDD 45 58 VDD VDD VDD SNC710 CVDD CVDD CVDD LXIN 12 33 53 22 47uF AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND GND GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 U1 15pF 32768 220K 51 0.1uF VDD 49 48 20 75K RST TEST CKSEL EXTM LXOUT P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 44 46 SPEAKER 24 23 25 TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8 10 11 14 15 16 17 18 19 BP0 BN0 VO AVDD AGND P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 GND GND GND GND GND GND P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 CE_ CEIN_ READY ALE_CLK CLKIN 21 50 54 55 56 57 60 61 62 1 2 3 4 5 6 7 8 42 41 40 39 37 36 35 34 32 31 30 29 28 VDD 15pF 330 330 330 330 330 330 330 330 26 XIN 110K 27 XOUT AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#1 0x200000-0x27FFFF SR008_0 3V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 U2 VDD3V VDD3V Extension ROM card VDD VDD CONN 18 CONN 18 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND VDD3V GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ROM Interface AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM 13 38 43 47 52 59 SR008_1 SNC710 Main Board Extension ROM board Ver. 1.4 12 VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC ROM#2 0x280000-0x2FFFFF July 30, 2003 SNC710 16-bit Voice Engine 7.3 4.5V/16M Crystal 4.5V power supply with 16M crystal input and PWM output VDD U1 9 VDD 45 58 47uF 51 0.1uF 49 48 20 15pF VDD VDD VDD SNC710 CVDD CVDD CVDD LXIN 12 33 53 22 4.7uF AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND GND GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 U1 CVDD 220K RST TEST CKSEL EXTM LXOUT P0.0 P0.1 P0.2 P0.3 P0.4 P0.5 P0.6 P0.7 21 50 54 55 56 57 60 61 62 1 2 3 4 5 6 7 8 42 41 40 39 37 36 35 34 32 31 30 29 28 CVDD 330 330 330 330 330 330 330 330 26 XIN 27 XOUT AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#1 0x200000-0x27FFFF 44 46 SPEAKER 24 23 25 TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8 10 11 14 15 16 17 18 19 BP0 BN0 VO AVDD AGND P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 GND GND GND GND GND GND CVDD VDD Extension ROM card P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 CE_ CEIN_ READY ALE_CLK CLKIN SR008_0 1.5V 3V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 U2 VDD3V VDD3V CONN 18 CONN 18 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND VDD3V GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 ROM Interface AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#2 0x280000-0x2FFFFF 13 38 43 47 52 59 SR008_1 SNC710 Main Board Extension ROM board Ver. 1.4 13 VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC 16MHZ 15pF July 30, 2003 SNC710 16-bit Voice Engine 7.4 4.5V/16M ROSC 4.5V power supply with 16Mhz ROSC and PWM output VDD U1 9 VDD 45 58 220K 47uF 51 49 0.1uF VDD 48 20 75K VDD VDD VDD SNC710 CVDD CVDD CVDD LXIN 12 33 53 22 4.7uF AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND GND GND VDD3V GND GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 U1 CVDD 15pF 32768 RST TEST CKSEL EXTM LXOUT P0.0 P0.1 P0.2 21 50 54 55 56 57 60 61 62 1 2 3 4 5 6 7 8 42 41 40 39 37 36 35 34 32 31 30 29 28 CVDD 330 330 330 330 330 330 330 330 15pF 26 XIN P0.3 P0.4 110K 27 XOUT P0.5 P0.6 P0.7 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#1 0x200000-0x27FFFF 44 46 SPEAKER 24 23 25 TR1 TR2 TR3 TR4 TR5 TR6 TR7 TR8 10 11 14 15 16 17 18 19 BP0 BN0 VO AVDD AGND P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 P1.7 GND GND GND GND GND GND Extension ROM card P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15 AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 CE_ CEIN_ READY ALE_CLK CLKIN SR008_0 1.5V 3V 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 U2 VDD3V VDD3V CVDD VDD CONN 18 CONN 18 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD3V CE_ READY ALE_CLK GND VDD3V GND VDD3V GND GND ROM Interface 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 AD0 AD1 AD2 AD3 GND AD4 AD5 AD6 AD7 VDD CE_ READY ALE_CLK GND BS0 BS1 BS2 BS3 BS4 TESTM ROM#2 0x280000-0x2FFFFF 13 38 43 47 52 59 SR008_1 SNC710 Main Board Extension ROM board Ver. 1.4 14 VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC VDD3V 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TYPE NC VDD NC NC NC NC NC NC NC NC NC NC NC NC July 30, 2003 SNC710 16-bit Voice Engine 8. Bonding Pad C KSE L CV D D TE ST GND GND P0 . 7 P0 . 6 P0 . 5 P0 . 4 P0 . 3 P0 . 2 P0 . 1 P0 . 0 VDD RS T 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 GN D P0.8 P0.9 P0.10 P0.11 P0.12 P0.13 P0.14 P0.15 VD D 1 2 3 4 5 6 7 8 9 (0 .00,0 . 00) 46 BN 0 45 VD D 44 BP 0 43 GN D 42 AD 0 41 AD 1 40 AD 2 39 AD 3 38 GN D 37 AD 4 36 AD 5 35 AD 6 34 AD 7 33 CV DD 32 CE B 31 CE IN 30 RE ADY 29 ALEC LK 21 LX O U T 22 23 LXIN VD D 24 25 26 GN D XIN VO 27 XO UT 28 CL KI N P1.0 10 P1.1 11 CV DD 12 GN D 13 P1.2 14 P1.3 15 P1.4 16 P1.5 17 P1.6 18 P1.7 19 EX TM 20 Note: The substrate MUST be connected to Vss in PCB layout. Ver. 1.4 15 July 30, 2003 SNC710 16-bit Voice Engine 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. Ver. 1.4 16 July 30, 2003