TPS70302: 1A/2A Dual-Output LDO Voltage Regulator W/Power Up Seq. For Split Vo, Adjust. Outputs 1.22V - 5.5V
Product Information
Features
24-Bit Resolution
Analog Performance:
Dynamic Range: 105 dB Typical
SNR: 105 dB Typical
THD+N: 0.002% Typical
Full-Scale Output: 3.75 VPP Typical
4×/8× Oversampling Interpolation Filter:
Stop-Band Attenuation: -57 dB
Pass-Band Ripple: ±0.015 dB
Sampling Frequency: 5 kHz to 200 kHz
System Clock: 128 fS, 192 fS, 256 fS, 384 fS, 512 fS, 768 fS, or 1152 fS with Autodetect
Zero Flags for Selectable Channel Combinations
Flexible Mode Control:
SPI/I2C Dual Mode for Serial Port
Parallel Hardware Control with 4 Functions
User-Programmable Functions (in SPI/I2C):
Flexible Audio Data Formats:
Right-Justified, I2S, Left-Justified, TDM, DSP
16- and 24-Bit Audio Data
Digital Attenuation: Mode Selectable
0 dB to -63 dB, 0.5 dB/step
0 dB to -100 dB, 1 dB/step
Soft Mute
Digital De-Emphasis
Digital Filter Roll-Off: Sharp or Slow
Oversampling Mode
User-Programmable Functions (in H/W):
Flexible Audio Data Formats:
Right-Justified, I2S, Left-Justified, TDM
Soft Mute
Digital De-Emphasis
Oversampling Mode
Power Supply Voltage: +5-V Analog, +3.3-V Digital
Package: 28-Lead TSSOP PowerPAD
Operation Temperature Range:
-40°C to +85°C for Consumer Grade
-40°C to +105°C for Automotive Audio Grade
APPLICATIONS
Car Audio External Amplifiers
Car Audio AVN Applications
Integrated A/V Receivers
DVD Movie and Audio Players
HDTV Receivers
DVD Add-On Cards for High-End PCs
Digital Audio Workstations
Other Multichannel Audio Systems
PowerPAD Is a trademark of Texas Instruments System Two, Audio Precision are trademarks of Audio Precision, Inc. SPI is a trademark of Motorola. I2C, I2S are trademarks of NXP Semiconductors. All other trademarks are the property of their respective owners
Description
The PCM1681 and PCM1681-Q1 are CMOS monolithic integrated circuits which feature an eight-channel 24-bit audio digital-to-analog converter (DAC) and support circuitry in small 28-lead TSSOP PowerPAD packages. The DACs utilize Burr-Brown's enhanced multilevel delta-sigma (ΔΣ) architecture to achieve excellent signal-to-noise performance and a high tolerance to clock jitter.
The PCM1681 and PCM1681-Q1 accept TDM (time-division multiplexed) format in addition to industry-standard audio data formats with 16- to 24-bit audio data width. Sampling rates up to 200 kHz are supported. The PCM1681 and PCM1681-Q1 provide a sub-set of user-programmable functions through a parallel control port, in addition to a full set of user-programmable functions through a serial control port, SPI, or I2C. The PCM1681 supports -40°C to +85°C for consumer grade applications and the PCM1681-Q1 supports -40°C to +105°C for automotive audio grade systems.
* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.
Inventory
Reported Distributor Inventory as of 11:35 AM GMT, 06 Nov 2009
** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.
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