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参数资料
| 型号： | LC78836M |
| 元件分类： | DAC |
| 英文描述： | SERIAL INPUT LOADING, 16-BIT DAC, PDSO24 |
| 封装： | MFP-24 |
| 文件页数： | 11/12页 |
| 文件大小： | 310K |
| 代理商： | LC78836M |
5. D/A Converter Block
The LC78836M incorporates an independent 16-bit D/A converter and an operational amplifier for signal output for
each channel (CH1 and CH2). It adopts a dynamic level shifting conversion technique that uses a resistor-string D/A
converter, a PWM (pulse width modulation) D/A converter, and a level shifting D/A converter. (See figure.)
Resistor-string D/A converter
This is an 8-bit D/A converter in which a total of 256 (= 28) unit-resistance resistors are connected in series and the
potential applied to the ends of that resistor string is voltage divided into 256 equal intervals. Of these resistor-
divided potentials, two adjacent potentials, V1 and V2, are selected by a switching circuit according to the value of
the upper 8 bits of the data. These two potentials are output to the PWM D/A converter. Note that these potentials
are related as follows:
V2 – V1 = (VH – VL)/256
PWM D/A converter
This is a 4-bit D/A converter that divides (by 16) the interval between the two potentials, V1 and V2, output by the
resistor-string D/A converter. This circuit outputs one or the other of the V1 and V2 potentials from the CH1OUT
(or CH2OUT) pin according to the value of the middle 4 bits of the data (D7 to D4).
No. 5127-8/12
LC78836M
相关PDF资料 |
PDF描述 |
|---|---|
| LC7883K | SERIAL INPUT LOADING, 16-BIT DAC, PDIP28 |
| LC7883KM | SERIAL INPUT LOADING, 16-BIT DAC, PDSO28 |
| LC78850 | SERIAL INPUT LOADING, 18-BIT DAC, PDIP42 |
| LC78850Q | SERIAL INPUT LOADING, 18-BIT DAC, PQFP44 |
| LC78855KM | SERIAL INPUT LOADING, 1-BIT DAC, PDSO28 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LC7883K | 制造商:Panasonic Industrial Company 功能描述:IC |
| LC7883KM | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:16-bit Digital Filter and Digital-to-analog Converters for Digital Audio |
| LC7883M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:LC7883M |
| LC78840M | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Four-times or Eight-times Oversampling Digital Filter |
| LC78845Q | 制造商:SANYO 制造商全称:Sanyo Semicon Device 功能描述:Sample Rate Converter for Digital Audio |
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