PCM1808集成電路（IC）的ADC/DAC-特殊用途規(guī)格書PDF中文資料

PCM1808屬于集成電路（IC）的ADC/DAC-特殊用途。由美國德州儀器公司制造生產(chǎn)的PCM1808ADC/DAC - 特殊用途該產(chǎn)品族中的產(chǎn)品可用于模擬和數(shù)字表示的信息轉(zhuǎn)換，適用于特定用例，或集成了通用數(shù)據(jù)轉(zhuǎn)換器中不常見的其他功能。例如針對超聲或汽車?yán)走_(dá)應(yīng)用集成了低噪聲放大器和可變增益級的器件、注重音頻和視頻的產(chǎn)品、在段碼式顯示器上集成顯示測量值功能的器件、集成輸入輸出電氣隔離的器件等。

1 Features

1? 24-Bit Delta-Sigma Stereo A/D Converter (ADC)

? Single-Ended Voltage Input: 3 Vp-p

? High Performance:

– THD+N: –93 dB (Typical)

– SNR: 99 dB (Typical)

– Dynamic Range: 99 dB (Typical)

? Oversampling Decimation Filter:

– Oversampling Frequency: ×64

– Pass-Band Ripple: ±0.05 dB

– Stop-Band Attenuation: –65 dB

– On-Chip High-Pass Filter: 0.91 Hz (48 kHz)

? Flexible PCM Audio Interface

– Master- or Slave-Mode Selectable

– Data Formats: 24-Bit I2S, 24-Bit Left-Justified

? Power Down and Reset by Halting System Clock

? Analog Antialias LPF Included

? Sampling Rate: 8 kHz–96 kHz

? System Clock: 256 f S, 384 fS, 512 fS

? Resolution: 24 Bits

? Dual Power Supplies:

– 5-V for Analog

– 3.3-V for Digital

? Package: 14-Pin TSSOP

2 Applications

? DVD Recorder

? Digital TV

? AV Amplifier or Receiver

? MD Player

? CD Recorder

? Multitrack Receiver

? Electric Musical Instrument

3 Description

The PCM1808 device is a high-performance, low-

cost, single-chip, stereo analog-to-digital converter

with single-ended analog voltage input. The

PCM1808 device uses a delta-sigma modulator with

64-times oversampling and includes a digital decimation filter and high-pass filter that removes the

dc component of the input signal. For various

applications, the PCM1808 device supports master

and slave mode and two data formats in serial audio interface.

The PCM1808 device supports the power-down and

reset functions by means of halting the system clock.

The PCM1808 device is suitable for wide variety of cost-sensitive consumer applications requiring good

performance and operation with a 5-V analog supply

and 3.3-V digital supply. Fabrication of the PCM1808

device uses a highly advanced CMOS process. The device is available in a small, 14-pin TSSOP

package.