PCM1789-Q1 Datasheet, PDF (1/41 Pages) Texas Instruments – 24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ, Stereo, Audio Digital-to-Analog Converter

PCM1789-Q1
Burr-Brown Audio
www.ti.com
24-Bit, 192-kHz Sampling, Enhanced Multi-Level ΔΣ,
Stereo, Audio Digital-to-Analog Converter
Check for Samples: PCM1789-Q1
SBAS546 – MARCH 2011
FEATURES
1
•234 Qualified for Automotive Applications
• Enhanced Multi-Level Delta-Sigma 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 Flags (16-/20-/24-Bits)
• Flexible Audio Interface:
– I/F Format: I²S™, Left-/Right-Justified, DSP
– Data Length: 16, 20, 24, 32 Bits
• Flexible Mode Control:
– 3-Wire SPI™, 2-Wire I²C™-Compatible
Serial Control Interface, or
Hardware Control
– Connect Up To 4 Devices on One SPI Bus
• Multi Functions via SPI or I²C I/F:
– Audio I/F Format Select: I²S, Left-Justified,
Right-Justified, DSP
– Digital Attenuation and Soft Mute
– Digital De-Emphasis: 32 kHz, 44.1 kHz,
48 kHz
– Data Polarity Control
– Power-Save Mode
• Multi Functions via Hardware Control:
– Audio I/F Format Select: I²S, Left-Justified
– 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: TSSOP-24
• Operating Temperature Range:
– –40°C to +105°C
APPLICATIONS
• AV Receivers
• Car Audio External Amplifiers
• Car Audio AVN Applications
DESCRIPTION
The PCM1789-Q1 is a high-performance, single-chip,
24-bit, stereo, audio digital-to-analog converter (DAC)
with differential outputs. The two-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
PCM1789-Q1 supports a 24-bit, DSP format in
addition to I²S, left-justified, and right-justified
formats.
The PCM1789-Q1 can be controlled through a
three-wire, SPI-compatible 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 two
user-programmable functions through two control
pins. The PCM1789-Q1 is available in a 24-pin
TSSOP 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.
SPI is a trademark of Motorola, Inc.
2
I²S, I²C are trademarks of NXP Semiconductors.
3
All other trademarks are the property of their respective owners.
4
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 © 2011, Texas Instruments Incorporated