FEATURES
24-Bit Resolution
Analog Performance:
− Dynamic Range: 132 dB (9 V RMS, Mono)
129 dB (4.5 V RMS, Stereo)
127 dB (2 V RMS, Stereo)
− THD+N: 0.0004%
Differential Current Output: 7.8 mA p-p
8× Oversampling Digital Filter:
− Stop-Band Attenuation: –130 dB
− Pass-Band Ripple: ±0.00001 dB
Sampling Frequency: 10 kHz to 200 kHz
System Clock: 128, 192, 256, 384, 512, or
768 fS With Autodetect
Accepts 16- and 24-Bit Audio Data
PCM Data Formats: Standard, I2S, and
Left-Justified
Optional Interface Available to External
Digital Filter or DSP
Digital De-Emphasis
Digital Filter Rolloff: Sharp or Slow
Soft Mute
Zero Flag
Dual-Supply Operation:
− 5-V Analog, 3.3-V Digital
5-V Tolerant Digital Inputs
Small 28-Lead SSOP Package

APPLICATIONS
A/V Receivers
DVD Players
Musical Instruments
HDTV Receivers
Car Audio Systems
Digital Multitrack Recorders
Other Applications Requiring 24-Bit Audio

DESCRIPTION
The PCM1794 is a monolithic CMOS integrated circuit that
includes stereo digital-to-analog converters and support
circuitry in a small 28-lead SSOP package. The data
converters use TI’s advanced segment DAC architecture
to achieve excellent dynamic performance and improved
tolerance to clock jitter. The PCM1794 provides balanced
current outputs, allowing the user to optimize analog
performance externally. Sampling rates up to 200 kHz are
supported.