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BurrĆBrown Products from Texas Instruments
TLV320DAC32
SLAS506A – NOVEMBER 2006 – REVISED NOVEMBER 2006
LOW POWER STEREO AUDIO DAC FOR PORTABLE AUDIO/TELEPHONY
FEATURES
• Stereo Audio DAC – 95-dBA Signal-to-Noise Ratio – 16/20/24/32-Bit Data – Supports Rates From 8 kHz to 96 kHz – 3D/Bass/Treble/EQ/De-emphasis Effects Two Audio Input Pins – Allows Analog Bypass Path Four Audio Output Drivers – Stereo 8-Ω, 500-mW/Channel Speaker Drive Capability – Stereo Fully Differential or Single-Ended Headphone Drivers Low Power: 18-mW Stereo 48-kHz Playback With 3.3-V Analog Supply Programmable Input/Output Analog Gains Programmable Microphone Bias Level Headphone Jack Detection Programmable PLL for Flexible Clock Generation I2C Control Bus Audio Serial Data Bus Supports I2S, Left/Right-Justified, DSP, and TDM Modes Extensive Modular Power Control Internal Selectable LDO Allows Operation From Single 3.3-V Supply Power Supplies: – Analog: 2.7 V–3.6 V. – Digital Core: 1.525 V–1.95 V – Digital I/O: 1.1 V–3.6 V Package: 5 × 5 mm 32-QFN
DESCRIPTION
The TLV320DAC32 is a low power stereo audio DAC with and integrated power amplifier designed to drive stereo headphones or speakers. This device also has a pair of analog inputs which allow routing of external signals to the output amplifiers. The playback path includes a mix/mux capability from the stereo DAC and analog inputs, through programmable volume controls, to the headphone outputs. Extensive register-based power control is included, enabling stereo 96-kHz playback as low as 20mW from a 3.3-V analog supply, making it ideal for portable battery-powered audio and telephony applications. The TLV320DAC32 contains four high-power output drivers. These drivers are capable of driving a variety of load configurations, including up to four channels of single-ended 16-Ω headphones using ac-coupling capacitors, or stereo 16-Ω headphones in a cap-less output configuration. In addition, pairs of drivers can be used to drive 8-Ω speakers in a BTL configuration at 500 mW per channel. The stereo audio DAC supports sampling rates from 8-kHz to 96-kHz and includes programmable digital filtering in the DAC path for 3D, bass, treble, midrange effects, speaker equalization, and de-emphasis for 32-kHz, 44.1-kHz, and 48-kHz rates. The serial control bus uses the I2C protocol, while the serial audio data bus is programmable for I2S, left/right-justified, DSP, or TDM modes. A highly programmable PLL is included for flexible clock generation and support for all standard audio rates from a wide range of available MCLKs, varying from 512-kHz to 50-MHz, with special attention paid to the most popular cases of 12-MHz, 13-MHz, 16-MHz, 19.2-MHz, and 19.68-MHz system clocks. 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.
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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. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
Copyright © 2006, Texas Instruments Incorporated
TLV320DAC32
www.ti.com
SLAS506A – NOVEMBER 2006 – REVISED NOVEMBER 2006
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.
The device is available in a 5 x 5mm 32-lead QFN package.
SIMPLIFIED BLOCK DIAGRAM
AVDD_DAC AVSS_DAC LDO_SELECT
DRVDD
DRVSS
WCLK
BCLK
DVDD IOVDD IOVSS
DIN
+
HPL+
Audio Serial Bus
LDO
Voltage Supplies VCM
Digital Core
HPL-/HPLCOM
+
LINEL
Volume Ctl & Effects
DAC L
+
Volume Ctl & Effects DACR
HPR-/HPRCOM/ SPKFC
VCM
LINER
HPR+
+
Bias/ Reference Audio Clock Generation I2C Control Bus
MICBIAS
MCLK
SDA SCL
PACKAGING/ORDERING INFORMATION (1)
PRODUCT PACKAGE PACKAGE DESIGNATOR OPERATING TEMPERATURE RANGE –40°C to 85°C ORDERING NUMBER TLV320DAC32IRHBT TLV320DAC32IRHBR TRANSPORT MEDIA, QUANTITY Tape and Reel, 250 Tape and Reel, 3000
RESET
TLV320DAC32 (1)
QFN-32
RHB
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI website at www.ti.com.
2
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TLV320DAC32
www.ti.com
SLAS506A – NOVEMBER 2006 – REVISED NOVEMBER 2006
PIN ASSIGNMENTS
RHB PACKAGE (TOP VIEW)
32
31
30
29
28
27
26
MCLK BCLK WCLK DIN LDO_SELECT IOVSS IOVDD SCL
25
AVDD_DAC
A.