Texas Instruments TLV320AIC3104 Evaluation Module (EVM) and USB motherboard TLV320AIC3104EVM-K TLV320AIC3104EVM-K データシート
製品コード
TLV320AIC3104EVM-K
IOVDD
AVDD, DRVDD
DVDD
t
1
t
2
t
3
SLAS510C – FEBRUARY 2007 – REVISED DECEMBER 2010
OVERVIEW
The TLV320AIC3104 is a highly flexible, low-power, stereo audio codec with extensive feature integration,
intended for applications in smartphones, PDAs, and portable computing, communication, and entertainment
applications. Available in a 5-mm × 5-mm, 32-lead QFN, the product integrates a host of features to reduce cost,
board space, and power consumption in space-constrained, battery-powered, portable applications.
intended for applications in smartphones, PDAs, and portable computing, communication, and entertainment
applications. Available in a 5-mm × 5-mm, 32-lead QFN, the product integrates a host of features to reduce cost,
board space, and power consumption in space-constrained, battery-powered, portable applications.
The TLV320AIC3104 consists of the following blocks:
•
•
Stereo audio multi-bit delta-sigma DAC (8 kHz–96 kHz)
•
Stereo audio multi-bit delta-sigma ADC (8 kHz–96 kHz)
•
Programmable digital audio effects processing (3-D, bass, treble, midrange, EQ, notch filter, de-emphasis)
•
Four audio inputs
•
Four high-power audio output drivers (headphone drive capability)
•
Two fully differential line output drivers
•
Fully programmable PLL
•
Headphone/headset jack detection available as register status bit
AIC3x Power Supply Sequencing Recommendation
The AIC3104 has been designed to be extremely tolerant of power supply sequencing. However, in some rare
instances, unexpected conditions can be attributed to power supply sequencing. The following sequence will
provide the most robust operation.
instances, unexpected conditions can be attributed to power supply sequencing. The following sequence will
provide the most robust operation.
Power up IOVDD first. The analog supplies, which include AVDD and DRVDD, should be powered up second.
The digital supply DVDD should be powered up last. Keep RESET low until all supplies are stable. The analog
supplies should be greater than or equal to DVDD at all times.
The digital supply DVDD should be powered up last. Keep RESET low until all supplies are stable. The analog
supplies should be greater than or equal to DVDD at all times.
Figure 14. AIC3x Power Supply Sequencing
Table 3. AIC3x Power Supply Sequencing
Symbol
Parameter
Min
Max
Unit
t1
IOVDD to AVDD, DRVDD
0
t2
AVDD to DVDD
0
5
ms
t3
IOVDD, to DVDD
0
HARDWARE RESET
The TLV320AIC3104 requires a hardware reset after power up for proper operation. After all power supplies are
at their specified values, the RESET pin must be driven low for at least 10 ns. If this reset sequence is not
performed, the TLV320AIC3104 may not respond properly to register reads/writes.
at their specified values, the RESET pin must be driven low for at least 10 ns. If this reset sequence is not
performed, the TLV320AIC3104 may not respond properly to register reads/writes.
This device has a software reset (page 0, register 1) that can be used by the host to reset all registers on page 0
and page 1 to their reset values. In cases where changes are needed only to routing or volume-control registers,
the changes should be accomplished by writing directly to the appropriate registers rather than using the
software or hardware reset.
and page 1 to their reset values. In cases where changes are needed only to routing or volume-control registers,
the changes should be accomplished by writing directly to the appropriate registers rather than using the
software or hardware reset.
18
Copyright © 2007–2010, Texas Instruments Incorporated
Product Folder Links: