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TWL6041
SWCS058D – AUGUST 2010 – REVISED AUGUST 2014
TWL6041 8-Channel Low-Power Audio Codec for Portable Applications
1 Device Overview
1.1
Features
1
• Four Audio Digital-to-Analog Converter (DAC)
Channels
• Stereo Capless Headphone Drivers
– Up to 104-dB DR
– Power Tune for Performance and Power
Consumption Tradeoff
• Stereo 8 Ω, 1.5 W per Channel Speaker Drivers
also with 4-Ω Support Capability
• Differential Earpiece Driver
• Stereo Line-Out
• Two Audio Analog-to-Digital Converter (ADC)
Channels
– 96-dBA SNR
• Four Audio Inputs:
– Three Differential Microphone Inputs
– Stereo Line-In and FM Input
• Two Vibrator and Haptics Feedback Channels
– Differential H-bridge Drivers
• Two Low-Noise Analog Microphone Bias Outputs
• Two Digital Microphone Bias Outputs
1.2
•
•
Applications
Mobile and Smart Phones
MP3 Players
1.3
• Analog Low-Power Loop from Line-in to
Headphone and Speaker Outputs
• Dual Phase-Locked Loops (PLLs) for Flexible
Clock Support:
– 32-kHz Sleep Clock Input for System LowPower Playback Mode
– 12-, 19.2-, 26-, and 38.4-MHz System Clock
Input
• Accessory Plug and Unplug Detection, Accessory
Button Press Detection
• Integrated Power Supplies:
– Negative Charge Pump for Capless Headphone
Driver
– Two Low Dropout Voltage Regulators (LDOs)
for High Power Supply Rejection Ration (PSRR)
2
• I C Control
• Thermal Protection:
– Host Interrupt
• Power Supplies:
– Analog: 2.1 V
– Digital I/O: 1.8 V
– Battery: 2.3 V–5.5 V
• Package 3.8-mm × 3.8-mm 81-Pin WCSP
•
Handheld Devices
Description
The TWL6041 is an audio codec with a high level of integration providing analog audio codec functions for
portable applications, as shown in Figure 1-1. The device contains multiple audio analog inputs and
outputs, as well as microphone biases and accessory detection. The device is connected to the OMAP™
4 host processor through a proprietary PDM interface for audio data communication enabling partitioning
with optimized power consumption and performance. Multichannel audio data is multiplexed to a single
wire for downlink (PDML) and uplink (PDMUL).
The OMAP4 device provides the TWL6041 device with five PDM audio-input channels (DL0–DL4).
Channels DL0–DL3 are connected to four parallel DAC channels multiplexed to stereo headphone (HSL,
HSR), stereo speaker (HFL, HFR), and earpiece (EAR) or stereo line outputs (AUXL, AUXR).
The stereo headphone path has a low-power (LP) mode operating from a 32-kHz sleep clock to enable
more than 100 hours of MP3 playback time. Very-high dynamic range of 104 dBA is achieved when using
the system clock input and DAC path high-performance (HP) mode. Class-AB headphone drivers provide
a 1-Vrms output and are ground centered for capless connection to a headphone, thus enabling system
size and cost reduction. The earpiece driver is a differential class-AB driver with 2-Vrms capability to a
typical 32-Ω load or 1.4-Vrms to a typical 16-Ω load.
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.
TWL6041
SWCS058D – AUGUST 2010 – REVISED AUGUST 2014
www.ti.com
Stereo speaker path has filterless class-D outputs with 1.5-W capability per channel. Additionally, the 4-Ω
load is supported. For output-power maximization, supply connection to an external boost is supported.
Speaker drivers also support hearing aid coil loads.
For vibrator and haptic feedback support, the TWL6041 device has two PWM channels with independent
input signals from DL4 or I2C. Vibra drivers are differential H-bridge outputs, enabling fast acceleration
and deceleration of vibra motor. An external driver for a hearing aid coil or a piezo speaker requiring high
voltage can be connected to line outputs.
The TWL6041 supports three differential microphone inputs (MMIC, HMIC, and SMIC) and a stereo lineinput (AFML, AFMR) multiplexed to two parallel ADCs. The PDM output from the ADCs is transmitted to
the OMAP4 processor through UL0 and UL1. AFML, AFMR inputs can also be looped to analog outputs
(LB0, LB1).
Two LDOs provide a voltage of 2.1 V to bias analog microphones (MBIAS and HBIAS). The maximum
output current is 2 mA for each analog bias, allowing up to two microphones on one bias. Two LDOs
provide a voltage of 1.8 V to 1.85 V to bias digital microphones (DBIAS1 and DBIAS2). One bias
generator can bias several digital microphones at the same time, with a total maximum output current of
10 mA.
The TWL6041 device has an integrated negative charge pump and two LDOs (HS LDO and LS LDO) for
high PSRR. The only external supply needed is 2.1 V, which is available from the 2.1-V DC-DC of
TWL6030/6032 power-management IC (PMIC) in the OMAP4 system. By powering audio from low-noise
2.1-V DC-DC of low power consumption, high dynamic range and high output swing at the headset output
are achieved. All other supply inputs can be directly connected to battery or system 1.8-V I/O.
Two integrated PLLs enable operation from a 12-, 19.2-, 26-, and 38.4-MHz system clock (MCLK) or, in
LP playback mode, from a 32-kHz sleep clock (CLK32K). The frequency plan is based on a 48-kS/s audio
data rate for all channels, and the host processor uses sample-rate converters to interface with different
sample rates (for example, 44.1 kHz). In the specific case of low-power audio playback, the TWL6041
supports the 44.1-kS/s and 48-kS/s rates. Transitions between sample rates or input clocks are seamless.
Accessory plug and unplug detections are supported (PLUGDET). Some headsets have a manual switch
for submitting send/end signal to the terminal through the microphone input pin. This feature is supported
by a periodic accessory button press detection to minimize current consumption in sleep mode. Detection
cycle properties can be programmed according to system requirements.
The TWL6041BSRS, when connected to OMAP4 and OMAP5 platform, includes SRS Audio Effects, SRS
pre-processing solutions and SRS TruMedia as standard feature for Android™ ICS.
Table 1-1. Device Information (1)
PART NUMBER
TWL6041B
(1)
2
PACKAGE
BODY SIZE (NOM)
YFF (81)
3.56 mm × 3.56 mm
For more information, see Section 3, Mechanical Packaging and Orderable Information.
Device Overview
Copyright © 2010–2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TWL6041
TWL6041
www.ti.com
1.4
SWCS058D – AUGUST 2010 – REVISED AUGUST 2014
Functional Block Diagram
Figure 1-1 shows a simplified block diagram of the device.
HBIAS
HMBIAS
MBIAS
DBIAS1
MMICN
ADCL
1
GNDMIC
MMICP
MicAmpL
AAFL
VDDMBIAS
HMICP
HMICN
0:30 dB
MMBIAS
UpLink
VSSUL
MicAmpR
AAFR
DMBIAS1
1
ADCR
SMICP
SMICN
DBIAS2
DMBIAS2
0:30 dB
LineInAmpR
UL0
UL1
DL0
PDMDN
PDMUP
PDMCLK
PDMCLKLB
PDMFRAME
PDM
Interface
SCL
LineInAmpL
DL1
DL2
LB0
AFML
–18:24 dB
DL4
VDDVIO
SDA
AFMR
DL3
GNDDIGIO
GPO
LB1
EarDrv
EARP
Interface
EARN
–24:6 dB
HSLDrv
2
I C
Registers
VDDEAR
HSL
PBKG
1
HSDACL
–30:0 dB
VDDV2V1
HSRDrv
VDDULLDO
HS LDO
VSSEARLDO
LS LDO
VDDHS
VSSHS
GNDHS
HSR
1
HSDACR
–30:0 dB
GNDLDO
AUXLN
CFLYP
GNDNCP
CFLYN
VSSDL
AUXLP
VDDREGNCP
Negative
Charge
Pump
AUXRP
DownLink
AUXRN
PGAL
NCPOUT
HFLDrv
VDDHFL
HFLP
VDDRF
REF
REFP
REFN
Power
1
Reference
Temp
Sense
HFLN
HFDACL
GNDHFL
–52:6 dB
PGAR
GNDREF
HFRDrv
VDDHFR
HFRP
PLUGDET
ACCONN
Accessory
Connector
Detection
1
MCLK
1 PCM
8
8
HP PLL
PCM
to
PWM
8
CLK32K
VSSPLL
GNDHFR
–52:6 dB
PDM
to
VDDDLPLL
HFRN
HFDACR
VIBLDrv
VIBLP
1
VIBLN
1
GNDVIB
LP PLL
Clock System
8
8
Osc
8
PCM
to
PWM
VIBRDrv
VDDVIB
VIBRP
1
VIBRN
1
SWCS056-001
Figure 1-1. Simplified Block Diagram
Device Overview
Copyright © 2010–2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TWL6041
3
TWL6041
SWCS058D – AUGUST 2010 – REVISED AUGUST 2014
www.ti.com
For the complete TWL60xx data sheet (SWCS056), contact your TI sales representative.
4
Device Overview
Copyright © 2010–2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TWL6041
TWL6041
www.ti.com
SWCS058D – AUGUST 2010 – REVISED AUGUST 2014
2 Revision History
NOTE: Page numbers for previous revisions may differ from page numbers in the current version.
Changes from Revision C (June 2012) to Revision D
•
Changed document to standard TI format
Page
........................................................................................
Revision History
Copyright © 2010–2014, Texas Instruments Incorporated
Submit Documentation Feedback
Product Folder Links: TWL6041
1
5
TWL6041
SWCS058D – AUGUST 2010 – REVISED AUGUST 2014
www.ti.com
3 Mechanical Packaging and Orderable Information
3.1
Packaging Information
The following pages include mechanical packaging and orderable information. This information is the most
current data available for the designated devices. This data is subject to change without notice and
revision of this document. For browser-based versions of this data sheet, refer to the left-hand navigation.
6
Mechanical Packaging and Orderable Information
Submit Documentation Feedback
Product Folder Links: TWL6041
Copyright © 2010–2014, Texas Instruments Incorporated
PACKAGE OPTION ADDENDUM
www.ti.com
10-Dec-2020
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
(4/5)
(6)
TWL6041BYFFR
ACTIVE
DSBGA
YFF
81
3000
RoHS & Green
SNAGCU
Level-1-260C-UNLIM
-40 to 85
TWL6041B
TWL6041BYFFT
ACTIVE
DSBGA
YFF
81
250
RoHS & Green
SNAGCU
Level-1-260C-UNLIM
-40 to 85
TWL6041B
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of