PCM3003

16 位/20 位单端模拟输入/输出 SoundPlusTM 立体声音频编解码器

The PCM3002 and are low-cost, single-chip stereo audio codecs analog-to-digital and digital-to-analog converters with single-ended analog voltage input and output.

The ADCs and DACs employ delta-sigma modulation with 64-times oversampling. The ADCs include a digital decimation filter, and the DACs include an 8-times oversampling digital interpolation filter. The DACs also include digital attenuation, de-emphasis, infinite zero detection, and soft mute to form a complete subsystem. The PCM3002 and PCM3003 operate with left-justified ADC and right-justified DAC formats, while the PCM3002 also supports other formats, including the I2S data format. The PCM3002 and PCM3003 provide a power-down mode that operates on the ADCs and DACs independently.

The PCM3002 and PCM3003 are fabricated using a highly advanced CMOS process, and are available in a 24-pin SSOP package. The PCM3002 and PCM3003 are suitable for a wide variety of cost-sensitive consumer applications where good performance is required.

The PCM3002 programmable functions are controlled by software. The PCM3003 functions, which are controlled by hardware, include de-emphasis, power-down, and audio data format selections.

.

Monolithic 20-Bit ADC and DAC

.

16/20-Bit Input/Output Data

.

Software Control: PCM3002

.

Hardware Control: PCM3003

.

Stereo ADC:

Single-Ended Voltage Input

.

Antialiasing Filter

.

64× Oversampling

.

High Performance

.

THD+N: &3150;86 dB

.

SNR: 90 dB

.

Dynamic Range: 90 dB

* Stereo DAC:

.

Single-Ended Voltage Output

.

Analog Low-Pass Filter

.

64× Oversampling

.

High Performance

.

THD+N: –86 dB

.

SNR: 94 dB

.

Dynamic Range: 94 dB

* Special Features PCM3002, PCM3003

.

Digital De-Emphasis: 32 kHz, 44.1 kHz, 48 kHz

.

Power Down: ADC/DAC Independent

* Special Features PCM3002

.

Digital Attenuation 256 Steps

.

Soft Mute

.

Digital Loopback

.

Four Alternative Audio Data Formats

* Sampling Rate: 4 kHz to 48 kHz

* Single 3-V Power Supply

* Small Package: SSOP-24

* APPLICAONS

.

DVC Applications

.

DSC Applications

.

Portable/Mobile Audio Applications

System Two, Audio Precision are trademarks of Audio Precision, Inc.

All other trademarks are the property of their respective owners.