PCM1690 Datasheet, PDF (1/46 Pages) Texas Instruments – 24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,Eight-Channel Audio Digital-to-Analog Converter

PCM1690
Burr-Brown Audio
www.ti.com.............................................................................................................................................................................................. SBAS448 – OCTOBER 2008
24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,
Eight-Channel Audio Digital-to-Analog Converter
FEATURES
1
•2345 24-Bit Delta-Sigma DAC
• 8-Channel DAC:
– High Performance: Differential, f_S = 48 kHz
– THD+N: –94 dB
– SNR: 113 dB
– Dynamic Range: 113 dB
– Sampling Rate: 8 kHz to 192 kHz
– System Clock: 128 f_S, 192 f_S, 256 f_S, 384 f_S,
512 f_S, 768 f_S, 1152 f_S
– Differential Voltage Output: 8 V_PP
– Analog Low-Pass Filter Included
– 4x/8x Oversampling Digital Filter:
– Passband Ripple: ±0.0018 dB
– Stop Band Attenuation: –75 dB
– Zero Flag
• Flexible Audio Interface:
– I/F Format: I²S™, Left-/Right-Justified, DSP,
TDM
– Data Length: 16, 20, 24, 32 Bits
• Flexible Mode Control:
– 3-Wire SPI™, 2-Wire I²C™-Compatible
Serial Control Interface, or
Hardware Control
• Multi Functions via SPI or I²C I/F:
– Audio I/F Format Select: I²S, Left-Justified,
Right-Justified, DSP, TDM
– Digital Attenuation and Soft Mute
– Digital De-Emphasis: 32 kHz, 44.1 kHz,
48 kHz
– Data Polarity Control
– Power Down
• Multi Functions via H/W Control:
– Audio I/F Format Select: I²S, TDM
– Digital De-Emphasis Filter: 44.1 kHz
• Analog Mute by Clock Halt Detection
• External RESET Pin
• Power Supplies:
– 5 V for Analog and 3.3 V for Digital
• Package: HTSSOP-48
• Operating Temperature Range:
– –40°C to +85°C
APPLICATIONS
• Blu-ray™ DVD Players
• HD DVD Players
• AV Receivers
• Home Theaters
• Car Audio External Amplifiers
• Car Audio AVN Applications
DESCRIPTION
The PCM1690 is a high-performance, single-chip,
24-bit, eight-channel, audio digital-to-analog converter
(DAC) with differential outputs. The eight-channel,
24-bit DAC employs an enhanced, multi-level
delta-sigma (ΔΣ) modulator and supports 8-kHz to
192-kHz sampling rates and a 16-/20-/24-/32-bit width
digital audio input word on the audio interface. The
audio interface of the PCM1690 supports the
time-division-multiplexed (TDM) format in addition to
the standard I²S, left-justified, right-justified, and DSP
formats.
The PCM1690 can be controlled through a three-wire,
SPI-compatible interface, or two-wire, I²C-compatible
serial interface in software, which provides access to
all functions including digital attenuation, soft mute,
de-emphasis, and so forth. Also, hardware control
mode provides a subset of user-programmable
functions through two control pins. The PCM1690 is
available in a 12-mm × 8-mm (12-mm × 6-mm body)
HTSSOP-48 package.
1
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.
Blu-ray is a trademark of Blu-ray Disk Association.
2
SPI is a trademark of Motorola.
3
I2S, I2C are trademarks of NXP Semiconductors.
4
All other trademarks are the property of their respective owners.
5
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008, Texas Instruments Incorporated