Texas Instruments PCM1851PJTRG4

Description
The PCM1850/1851 is a high-performance, low-cost, single-chip stereo analog-to-digital converter with a single-ended analog front end consisting of a 6-stereo-input multiplexer and wide-range PGA. It 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. The PCM1850/1851 supports two modes (master and slave) and four data formats through a serial control interface, SPI for the PCM1850 and I²C for the PCM1851, respectively. It is suitable for various 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 are required.

Features
24-bit, 96-kHz stereo A/D converter with 6 x 2-channel mux and PGA
Multiplexer and programmable-gain amplifier (PGA)
6x2-channel single-ended inputs
Multiplexed output
Maximum input level: 2.4 V rms
Input resistance: 50 kΩ, minimum
PGA gain: 11 to -11 dB range, 0.5 dB/step
24-bit delta-sigma stereo A/D converter
Antialiasing filter included
Oversampling decimation filter
Oversampling frequency: x64
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 (PCM1850)
With I²C control (PCM1851)
Sampling rate: 16-96 kHz
System clock: 256 f. 384 f. 512 f, 768 f
Dual power supplies: 5 V for analog, 3.3 V for digital
Package: 32-pin TQFP
Lead-free product

Applications
DVD/HDD/DVD HDD recorder
AV amplifier receiver
CD recorder
MD recorder
Multi-track recorder
Electric musical instrument