Burr-Brown Products
from Texas Instruments
PCM1850
PCM1851
SLES108 − MARCH 2004
24-BIT, 96-kHz STEREO A/D CONVERTER
WITH 6 y 2-CHANNEL MUX AND PGA
− Master/Slave Mode Selectable
FEATURES
− Data Formats: 24-Bit Left Justified,
D
Multiplexer and Programmable-Gain Amplifier
(PGA)
− 6×2-Channel Single-Ended Inputs
− Multiplexed Output
2
24-Bit I S, 16-, 24-Bit Right Justified
D
Mode Control by Serial Interface:
− With SPI Control (PCM1850)
2
− With I C Control (PCM1851)
− Maximum Input Level: 2.4 V rms
− Input Resistance: 50 kΩ, Minimum
− PGA Gain: 11 to –11 dB Range,
0.5 dB/Step
D
D
D
Sampling Rate: 16–96 kHz
System Clock: 256 f , 384 f , 512 f , 768 f
s
s
s
s
Dual Power Supplies:
5 V for Analog, 3.3 V for Digital
Package: 32-Pin TQFP
Lead-Free Product
D
D
D
24-Bit Delta-Sigma Stereo A/D Converter
Antialiasing Filter Included
D
D
Oversampling Decimation Filter
− Oversampling Frequency: ×64
− Pass-Band Ripple: 0.05 dB
APPLICATIONS
− Stop-Band Attenuation: –65 dB
− On-Chip High-Pass Filter: 0.91 Hz (48 kHz)
D
D
D
D
D
D
DVD/HDD/DVD+HDD Recorder
AV Amplifier Receiver
CD Recorder
D
D
High Performance
− THD+N: 0.0023% (Typically)
− SNR: 101 dB (Typically)
− Dynamic Range: 102 dB (Typically)
MD Recorder
Multi-Track Recorder
Electric Musical Instrument
PCM Audio Interface
DESCRIPTION
The PCM1850/1851 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 PCM1850/1851 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 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. The
PCM1850/1851 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 PCM1850/1851 is fabricated
using a highly advanced CMOS process and is available in a small 32-pin TQFP package.
ORDERING INFORMATION
OPERATION
TEMPERATURE
RANGE
PACKAGE
MARKING
ORDERING
NUMBER
TRANSPORT
MEDIA
PRODUCT
PACKAGE
PACKAGE CODE
PCM1850PJT
PCM1850PJTR
PCM1851PJT
PCM1851PJTR
Tray
PCM1850PJT
PCM1851PJT
32-Lead TQFP
32-Lead TQFP
32PJT
32PJT
–40°C to 85°C
–40°C to 85°C
PCM1850
PCM1851
Tape and reel
Tray
Tape and reel
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright © 2004, Texas Instruments Incorporated