PCM1794A Datasheet, PDF (1/34 Pages) Burr-Brown (TI) – 24-bit,192-khz sampling,advanced segment, audio stereo digital-to-analog converter

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PCM1794A
SLES117B – AUGUST 2004 – REVISED DECEMBER 2015
PCM1794A 24-Bit, 192-kHz Sampling, Advanced Segment, Audio Stereo
Digital-to-Analog Converter
1 Features
•1 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 f_S
With Autodetect
• Accepts 16-Bit 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-Pin SSOP Package
2 Applications
• A/V Receivers
• DVD Players
• Musical Instruments
• Car Audio Systems
• Other Applications Requiring 24-Bit Audio
3 Description
The PCM1794A device is a monolithic, CMOS-
integrated circuit that includes stereo digital-to-analog
converters (DACs) and support circuitry in a small 28-
pin SSOP package. The data converters use TI’s
advanced segment DAC architecture to achieve
excellent dynamic performance and improved
tolerance to clock jitter. The PCM1794A device
provides balanced current outputs, allowing the user
to optimize analog performance externally. Sampling
rates up to 200 kHz are supported.
PART NUMBER
PCM1794A
Device Information⁽¹⁾
PACKAGE
BODY SIZE (NOM)
SSOP (28)
10.20 mm × 5.30 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Application Diagram
DSP
Data
LRCK
BCK
MCLK
PCM1794A
I/V Stage
I/V Stage
Differential Output or
Differential to SE
Stage
L Analog Out
R Analog Out
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.