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PT2259_09

更新时间： 2024-01-13 06:34:35

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PT2259_09 数据手册

PT2259

BYTE FORMAT

Every byte transmitted to the DATA line consists of 8 bits and each byte must be followed by an “acknowledge” bit. The

MSB is transmitted first.

ACKNOWLEDGE SIGNAL

During the ninth clock pulse, the microprocessor puts a resistive “high” level on the DATA line. If the peripheral audio

processor (PT2259) acknowledges, it will pull the DATA line from a “high” state to a “low” state during this acknowledge

clock phase so that the DATA line is in a stable “low” state during this clock pulse. Please refer to the diagram below.

The audio processor that has been address (PT2259) must generate an “acknowledge” signal after receiving each byte

or the DATA line will remain at the “high” level during the ninth clock pulse.

TRANSMISSION WITHOUT ACKNOWLEDGE

If you do not wish the audio processor (PT2259) to detect the “acknowledge” signal, a simpler microprocessor

transmission method can be used: after PT2259 has received a byte wait for one clock pulse and do not acknowledge it.

If this approach is used, however, there is a greater chance for faulty operations to occur and noise immunity will be

decreased.

I²C START TIME

When PT2259 is powered on, a short period must elapse before voltage becomes stable. After the power is turned on,

PT2259 must wait at least 200ms before it is able to send an I²C control signal otherwise control efficacy and normal

operation will be comprised. Please refer to the diagram below:

V1.3

July, 2009

1 2 3 456 7 8...15

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型号	品牌	获取价格	描述	数据表
PT2259-S	PTC	获取价格	Volume Controller IC
PT225S	ETC	获取价格	TRIAC\|200V V(DRM)\|25A I(T)RMS\|TO-208VAR1/2
PT2260	PTC	获取价格	REMOTE CONTROL ENCODER
PT2260_06	PTC	获取价格	Remote Control Encoder
PT2260-D	PTC	获取价格	Remote Control Encoder
PT2260-D(L)	PTC	获取价格	Remote Control Transmitter IC, CMOS, PDIP16
PT2260-R2	PTC	获取价格	REMOTE CONTROL ENCODER
PT2260-R2(L)	PTC	获取价格	Remote Control Transmitter IC, CMOS, PDIP16
PT2260-R2S	PTC	获取价格	Remote Control Encoder
PT2260-R2S(L)	PTC	获取价格	Remote Control Transmitter IC, CMOS, PDSO16