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SNC26300 Datasheet(PDF) 7 Page - SONiX Technology Company |
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SNC26300 Datasheet(HTML) 7 Page - SONiX Technology Company |
7 / 11 page SNC26300 One Channel Speech Controller Ver: 1.7 October 14, 2009 7 5.7 PWM Output An PWM circuit is built-in SNC26300. The maximum resolution of PWM is 8 bits. Two huge output stage circuits are designed in SNC26300. With this advanced circuit, the chip is capable of driving speaker directly without external transistors. BUO1 BUO2 PWM Output 5.8 Watch Dog Timer SNC26300 built 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. 5.9 IR Function P23 can be modulated with 38.5KHz square wave before sent out to P23 pin. The IR signal can be achieved by this modulated signal. 5.10 PWM IO control SNC26300 has support 8 PWM IO (P20~P23, P30~P33). 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. 6. ABSOLUTE MAXIMUM RATING Items Symbol Min Max Unit. Supply Voltage VDD-V -0.3 6.0 V Input Voltage VIN VSS-0.3 VDD+0.3 V Operating Temperature TOP 0 55.0 oC Storage Temperature TSTG -55.0 125.0 oC |
Similar Part No. - SNC26300 |
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Similar Description - SNC26300 |
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