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參數(shù)資料
| 型號(hào)： | TLV320DAC32IRHBT |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類(lèi)： | DAC |
| 英文描述： | SERIAL INPUT LOADING, DAC WITH PROGRAMMABLE PLL, PQCC32 |
| 封裝： | 5 X 5 MM, GREEN, PLASTIC, QFN-32 |
| 文件頁(yè)數(shù)： | 1/69頁(yè) |
| 文件大?。?/td> | 1242K |
| 代理商： | TLV320DAC32IRHBT |
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1
FEATURES
DESCRIPTION
www.ti.com........................................................................................................................................ SLAS506B – NOVEMBER 2006 – REVISED DECEMBER 2008
LOW POWER STEREO AUDIO DAC FOR PORTABLE AUDIO/TELEPHONY
Stereo Audio DAC
–
95-dBA Signal-to-Noise Ratio
The TLV320DAC32 is a low power stereo audio DAC
with and integrated power amplifier designed to drive
–
16/20/24/32-Bit Data
stereo headphones or speakers. This device also has
–
Supports Rates From 8 kHz to 96 kHz
a pair of analog inputs which allow routing of external
–
3D/Bass/Treble/EQ/De-emphasis Effects
signals to the output amplifiers. The playback path
includes a mix/mux capability from the stereo DAC
Two Audio Input Pins
and analog inputs, through programmable volume
–
Allows Analog Bypass Path
controls,
to
the
headphone
outputs.
Extensive
Four Audio Output Drivers
register-based power control is included, enabling
stereo 96-kHz playback as low as 20mW from a
–
Stereo 8-
, 500-mW/Channel Speaker Drive
3.3-V analog supply, making it ideal for portable
Capability
battery-powered audio and telephony applications.
–
Stereo Fully Differential or Single-Ended
The TLV320DAC32 contains four high-power output
Headphone Drivers
drivers. These drivers are capable of driving a variety
Low Power: 18-mW Stereo 48-kHz Playback
of load configurations, including up to four channels
With 3.3-V Analog Supply
of single-ended 16-
headphones using ac-coupling
Programmable Input/Output Analog Gains
capacitors, or stereo 16-
headphones in a cap-less
output configuration. In addition, pairs of drivers can
Programmable Microphone Bias Level
be used to drive 8-
speakers in a BTL configuration
Headphone Jack Detection
at 500 mW per channel.
Programmable PLL for Flexible Clock
The stereo audio DAC supports sampling rates from
Generation
8-kHz to 96-kHz and includes programmable digital
I2C Control Bus
filtering in the DAC path for 3D, bass, treble,
Audio Serial Data Bus Supports I2S,
midrange
effects,
speaker
equalization,
and
Left/Right-Justified, DSP, and TDM Modes
de-emphasis for 32-kHz, 44.1-kHz, and 48-kHz rates.
Extensive Modular Power Control
The serial control bus uses the I2C protocol, while the
serial audio data bus is programmable for I2S,
Internal Selectable LDO Allows Operation
left/right-justified, DSP, or TDM modes. A highly
From Single 3.3-V Supply
programmable PLL is included for flexible clock
Power Supplies:
generation and support for all standard audio rates
–
Analog: 2.7 V–3.6 V.
from a wide range of available MCLKs, varying from
512-kHz to 50-MHz, with special attention paid to the
–
Digital Core: 1.525 V–1.95 V
most popular cases of 12-MHz, 13-MHz, 16-MHz,
–
Digital I/O: 1.1 V–3.6 V
19.2-MHz, and 19.68-MHz system clocks.
Package: 5
5 mm 32-QFN
The TLV320DAC32 operates from analog supplies of
2.7 V – 3.6 V, a digital core supply of 1.525 V – 1.95
V, and a digital I/O supply of 1.1 V – 3.6 V. An
internal LDO regulator allows the device to internally
generate the lower voltage power supply needed for
digital core logic, thereby allowing full operation from
a single 3.3-V supply voltage.
The TLV320DAC32 is a software-compatible subset
of the existing TLV320AIC32 and TLV320AIC33
audio codecs, allowing simple transition from a
system with record and playback to a system with
playback only.
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.
PRODUCTION DATA information is current as of publication date.
Copyright 2006–2008, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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