Features: 24-BIT RESOLUTION
ANALOG PERFORMANCE (VCC = +5V):Dynamic Range: 106dB typ (PCM1742KE)100dB typ (PCM1742E)SNR: 106dB typ (PCM1742KE)100dB typ (PCM1742E)THD+N: 0.002% typ (PCM1742KE)0.003% typ (PCM1742E)Full-Scale Output: 3.1Vp-p typ
4x/8x OVERSAMPLING DIGITAL FILTER:Stopband Attenuation: 55dBPassband Ripple: ±0.03dB
SAMPLING FREQUENCY: 5kHz to 200kHz
SYSTEM CLOCK: 128, 192, 256, 384, 512,768fS with Auto Detect
ACCEPTS 16-, 18-, 20-, AND 24-BIT AUDIODATA
DATA FORMATS: Standard, I2S, and Left-Justified
USER-PROGRAMMABLE MODE CONTROLS:Digital Attenuation: 0dB to 63dB, 0.5dB/StepDigital De-EmphasisDigital Filter Roll-Off: Sharp or SlowSoft MuteZero Flags for Each Output
DUAL-SUPPLY OPERATION:+5V Analog, +3.3V Digital
5V TOLERANT DIGITAL INPUTS
SMALL SSOP-16 PACKAGE
SAME PACKAGE SIZE AS SOP-8
Application AV RECEIVERS
DVD MOVIE PLAYERS
DVD ADD-ON CARDS FOR HIGH-END PCs
DVD AUDIO PLAYERS
HDTV RECEIVERS
CAR AUDIO SYSTEMS
OTHER APPLICATIONS REQUIRING 24-BITAUDIOPinout
SpecificationsPower Supply Voltage, VDD ......................... +4.0V
VCC .............................................................. +6.5V
Ground Voltage Differences ........................ ±0.1V
Digital Input Voltage ........... 0.3V to (6.5V + 0.3V)
Input Current (except power supply) .......... ±10mA
Ambient Temperature Under Bin.40°C to +125°C
Storage Temperature .................55°C to +150°C
Junction Temperature ................................. +150°C
Lead Temperature (soldering, 5s) ............... +260°C
Package Temperature (IR reflow, 10s) .........+235°CDescriptionThe PCM1742 is a CMOS, monolithic, integrated circuitwhich includes stereo Digital-to-Analog Converters(DACs) and support circuitry in a small SSOP-16 package.
The data converters PCM1742 utilize Texas Instrument's enhancedmultilevel delta-sigma architecture that employs fourth-order noise shaping and 8-level amplitude quantization toachieve excellent dynamic performance and improved toler-ance to clock jitter. The PCM1742 accepts industry standardaudio data formats with 16- to 24-bit data, providing easyinterfacing to audio DSP and decoder chips. Sampling ratesup to 200kHz are supported. A full set of user-program-mable functions are accessible through a 3-wire serialcontrol port that supports register write functions.
PCM1742 Data Sheet
