( File format: PDF, 609 KB )
24-Bit 96--kHz Stereo A/D Converter w/ 6 x 2-Channel MUX and PGA
Texas Instruments
Description
The PCM1850A/1851A is a high–performance, low–cost, single–chip stereo analog–to–digital converter with a single–ended analog front end that consists of a 6–stereo–input multiplexer and wide–range PGA. The PCM1850A/1851A includes a delta–sigma modulator with 64–times oversampling, a digital decimation filter and a low–cut filter that removes the dc component of the input signal. For various applications, the PCM1850A/1851A supports two modes (master and slave) and four data formats through a serial control interface, SPI for the PCM1850A and I2C for the PCM1851A. The PCM1850A/1851A is suitable for a wide variety of cost–sensitive DVD/CD/MD recorder and receiver applications where good performance and operation from a 5–V analog supply and 3.3–V digital supply is required. The PCM1850A/1851A is fabricated using a highly advanced CMOS process and is available in a small 32–pin TQFP package.
Features
Multiplexer and Programmable–Gain Amplifier (PGA) 6×2–Channel Single–Ended Inputs Multiplexed Output Maximum Input Level: 2.4 V rms Input Resistance: 50 k, Minimum PGA Gain: 11–dB to –11–dB Range, 0.5 dB/Step 24–Bit Delta–Sigma Stereo A/D Converter Antialiasing Filter Included 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) High Performance THD+N: 0.0023% (Typically) SNR: 101 dB (Typically) Dynamic Range: 102 dB (Typically) PCM Audio Interface Master/Slave Mode Selectable Data Formats: 24–Bit Left–Justified, 24–Bit I2S, 16–, 24–Bit Right–Justified Mode Control by Serial Interface: With SPI Control (PCM1850A) With I2C Control (PCM1851A) Sampling Rate: 16–96 kHz System Clock: 256 fs, 384 fs, 512 fs, 768 fs Dual Power Supplies: 5 V for Analog, 3.3 V for Digital Package: 32–Pin TQFP APPLICATIONS DVD/HDD/DVD+HDD Recorder AV Amplifier Receiver CD Recorder MD Recorder Multitrack Recorder Electric Musical Instrument All other trademarks are the property of their respective owners
Related Datasheets
| Part Number | Description | Category |
| • PCM1802 | Single-Ended Analog-Input 24-Bit, 96-kHz Stereo A/D Converter (Rev. C) | Passives - Filters, Oscillators and Resonators |
| • PCM1804 | Full Differential Analog Input 24-Bit, 192-kHz Stereo A/D Converter (Rev. C) | Passives - Filters, Oscillators and Resonators |
| • PCM4202 | PCM4202: High Performance 24-Bit, 216kHz Sampling Stereo Audio A/D Converter (Rev. B) | Passives - Filters, Oscillators and Resonators |
| • PCM4202-EP | High-Performance, 24-Bit, 216 kHz Sampling Stereo Audio Analog-to-Digital Conver | Passives - Filters, Oscillators and Resonators |
| • PCM4222 | High-Performance, 2-Channel, 24-Bit, 216kHz Sampling Multi-Bit Delta-Sigma A/D (Rev. A) | Passives - Filters, Oscillators and Resonators |
As the hyperlinked contents/websites are those of third parties, we cannot vouch for their accuracy or legitimacy.
Hot Articles
Most Popular Articles
Search EE Times India
Max's Cool Beans
Strange modes of transport and other "stuff"
Someone just pointed me at a YouTube video that claims to show the world's first e-powered multicopter flight...
