WM9711LGEFL/V Wolfson Microelectronics, WM9711LGEFL/V Datasheet
WM9711LGEFL/V
Specifications of WM9711LGEFL/V
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WM9711LGEFL/V Summary of contents
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... GPIO pins • 2 comparator inputs for battery monitoring • 1.8V to 3.6V supplies • 7x7mm QFN APPLICATIONS • Personal Digital Assistants (PDA) • Smartphones • Handheld and Tablet Computers http://www.wolfsonmicro.com/enews/ WM9711L Production Data, August 2006, Rev 4.3 Copyright ©2004 Wolfson Microelectronics plc ...
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WM9711L DESCRIPTION .......................................................................................................1 FEATURES.............................................................................................................1 APPLICATIONS .....................................................................................................1 BLOCK DIAGRAM .................................................................................................1 TABLE OF CONTENTS .........................................................................................2 PIN CONFIGURATION...........................................................................................4 ORDERING INFORMATION ..................................................................................4 PIN DESCRIPTION ................................................................................................5 ABSOLUTE MAXIMUM RATINGS.........................................................................6 RECOMMENDED OPERATING CONDITIONS .....................................................6 ELECTRICAL CHARACTERISTICS ......................................................................7 AUDIO OUTPUTS.......................................................................................................... 7 AUDIO INPUTS.............................................................................................................. 8 AUXILIARY MONO DAC ...
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Production Data AC97 DATA AND CONTROL INTERFACE .........................................................46 INTERFACE PROTOCOL............................................................................................ 46 INTERFACE TIMING ................................................................................................... 47 REGISTER MAP...................................................................................................50 REGISTER BITS BY ADDRESS .................................................................................. 51 APPLICATIONS INFORMATION .........................................................................59 RECOMMENDED EXTERNAL COMPONENTS........................................................... 59 RECOMMENDED EXTERNAL COMPONENT VALUES .............................................. 60 LINE OUTPUT ............................................................................................................. 60 ...
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... WM9711L PIN CONFIGURATION ORDERING INFORMATION TEMPERATURE DEVICE RANGE WM9711LGEFL/V -25 to +85 WM9711LGEFL/RV -25 to +85 Note: Reel quantity = 2,200 w PACKAGE SENSITIVITY LEVEL 48-lead QFN o C (Pb-free) 48-lead QFN o C (Pb-free, tape and reel) Production Data MOISTURE PEAK SOLDERING TEMPERATURE MSL3 o 260 C MSL3 o 260 C PD Rev 4.3 August 2006 ...
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Production Data PIN DESCRIPTION PIN NAME 1 DBVDD 2 XTLIN 3 XTLOUT 4 DGND1 5 SDATAOUT 6 BITCLK 7 DGND2 8 SDATAIN 9 DCVDD 10 SYNC 11 RESETB 12 CREF 13 AVDD2 14 DNC 15 DNC 16 DNC 17 DNC ...
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WM9711L ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical Characteristics ...
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Production Data ELECTRICAL CHARACTERISTICS AUDIO OUTPUTS Test Conditions DBVDD=3.3V, DCVDD = 3.3V, AVDD=HPVDD=SPKVDD =3.3V, T otherwise stated. PARAMETER SYMBOL DAC to Line-Out (HPOUTL/R or MONOOUT with 10kΩ / 50pF load) Full-scale output Signal to Noise Ratio (A-weighted) Total Harmonic Distortion ...
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WM9711L AUDIO INPUTS Test Conditions DBVDD=3.3V, DCVDD = 3.3V, AVDD = 3.3V, T PARAMETER LINEINL/R, MICL/R and PHONE pins Full Scale Input Signal Level (for ADC 0dB Input at 0dB Gain) Input Resistance Input Capacitance Line input to ADC (LINEINL, ...
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Production Data REFERENCE VOLTAGES Test Conditions DBVDD=3.3V, DCVDD = 3.3V, AVDD = 3.3V, T PARAMETER Audio ADCs, DACs, Mixers Reference Input/Output Buffered Reference Output Microphone Bias Bias Voltage Bias Current Source Output Noise Voltage DIGITAL INTERFACE CHARACTERISTICS Test Conditions DBVDD ...
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WM9711L HEADPHONE / SPEAKER OUTPUT THD VERSUS POWER -20 Headphone Power vs THD+N (32Ohm load) -40 -60 -80 -100 Power (mW) -20 Headphone Power vs THD+N (16Ohm load) -40 -60 -80 -100 Power (mW) ...
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Production Data POWER CONSUMPTION The power consumption of the WM9711L depends on the following factors. • Supply voltages: Reducing the supply voltages also reduces digital supply currents, and therefore results in significant power savings especially in the digital sections of ...
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... SOFTWARE SUPPORT The basic audio features of the WM9711L are software compatible with standard AC’97 device drivers. However, to better support its unique and additional functions, Wolfson Microelectronics supplies custom device drivers for selected CPUs and operating systems. Please contact your local Wolfson Sales Office for more information. ...
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Production Data AUDIO PATHS OVERVIEW 20h:7 (Loopback) Slot 3 L ADC Left 1 Left Channel Tone and 3D 08h / 22h / 18 Bit DAC AC Link 0 20h:13 (3DE) 10h:12-8 00000 = +12dB 11111 = -34.5dB LINEINL to SPKR ...
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WM9711L AUDIO INPUTS The following sections give an overview of the analogue audio input pins and their function. For more information on recommended external components, please refer to the “Applications Information” section. LINE INPUT The LINEINL and LINEINR inputs are ...
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Production Data and routes the signal from LINEINL and LINEINR through the differential mic path came from the MIC1 and MIC2 pins. Only one differential microphone be used at a time. The DS bit only has an ...
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WM9711L CAP2 Figure 2 Microphone Bias Schematic PHONE INPUT Pin 20 (PHONE mono, line level input designed to connect to the receive path of a telephony device. The pin connects directly to the record selector for phone call ...
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Production Data PCBEEP INPUT Pin 19 (PCBEEP mono, line level input intended for externally generated signal or warning tones routed directly to the record selector and all three output mixers, without an input amplifier. The signal ...
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WM9711L AUDIO ADC The WM9711L has a stereo sigma-delta ADC to digitise audio signals. The ADC achieves high quality audio recording at low power consumption. The ADC sample rate can be controlled by writing to a control register (see “Variable ...
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Production Data RECORD SELECTOR The record selector determines which input signals are routed into the audio ADC. The left and right channels can be selected independently. This is useful for recording a phone call: one channel can be used for ...
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WM9711L RECORD GAIN The amplitude of the signal that enters the audio ADC is controlled by the Record PGA (Programmable Gain Amplifier). The PGA gain can be programmed either by writing to the Record Gain register the Automatic ...
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Production Data AUTOMATIC LEVEL CONTROL The WM9711L has an automatic level control that aims to keep a constant recording volume irrespective of the input signal level. This is achieved by continuously adjusting the PGA gain so that the signal level ...
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WM9711L REGISTER ADDRESS 62h ALC / Noise Gate Control 60h ALC Control Table 9 ALC Control w BIT LABEL DEFAULT 15:14 ALCSEL 00 ALC function select (OFF ALC off (PGA gain set by register Right channel ...
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Production Data MAXIMUM GAIN The MAXGAIN register sets the maximum gain value that the PGA can be set to whilst under the control of the ALC. This has no effect on the PGA when ALC is not enabled. PEAK LIMITER ...
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WM9711L AUDIO DACS STEREO DAC The WM9711L has a stereo sigma-delta DAC that achieves high quality audio playback at low power consumption. Digital tone control, adaptive bass boost and 3-D enhancement functions operate on the digital audio data before it ...
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Production Data TONE CONTROL / BASS BOOST The WM9711L provides separate controls for bass and treble with programmable gains and filter characteristics. This function operates on digital audio data before it is passed to the audio DACs. Bass control can ...
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WM9711L 3D STEREO ENHANCEMENT The 3D stereo enhancement function artificially increases the separation between the left and right channels by amplifying the (L-R) difference signal in the frequency range where the human ear is sensitive to directionality. The programmable 3D ...
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Production Data AUXILIARY DAC AUXDAC is a simple 12-bit mono DAC. It can be used to generate DC signals (with the numeric input written into a control register signals such as telephone-quality ring tones or system beeps (with ...
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WM9711L ANALOGUE AUDIO OUTPUTS The following sections give an overview of the analogue audio output pins. For more information on recommended external components, please refer to the “Applications Information” section. HEADPHONE OUTPUTS – HPOUTL AND HPOUTR The HPOUTL and HPOUTR ...
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Production Data EAR SPEAKER OUTPUT – OUT3 Pin 37 (OUT3) has a buffer that can drive load impedances down to 16Ω. It can be used to: • Drive an ear speaker (phone receiver). The speaker can be connected differentially between ...
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WM9711L LOUDSPEAKER OUTPUTS – LOUT2 AND ROUT2 The LOUT2 and ROUT2 outputs are designed to differentially drive an 8Ω mono speaker. They can also be used as a stereo line-out or headphone output. For speaker drive, the LOUT2 signal must ...
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Production Data PHONE OUTPUT (MONOOUT) The MONOOUT output (pin 33) is intended for connection to the TX side of a wireless chipset. The signal is generated in a dedicated mono mixer not necessarily a mono mix of the ...
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WM9711L JACK INSERTION AND AUTO-SWITCHING In a phone application, a BTL ear speaker may be connected across OUT3 and HPOUTL, and a stereo headphone on HPOUTL and HPOUTR. Typically, only one of these two output devices is used at any ...
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Production Data DIGITAL AUDIO (SPDIF) OUTPUT The WM9711L supports the SPDIF standard using pin 47 as its output. Note that pin 47 can also be used as a GPIO pin. The GE5 bit (register 56h, bit 5) selects between GPIO ...
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WM9711L AUDIO MIXERS MIXER OVERVIEW The WM9711L has three separate low-power audio mixers to cover all audio functions required by smartphones, PDAs and handheld computers. The diagram below shows the routing of the analogue audio signals into the mixers. The ...
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Production Data SPEAKER MIXER The speaker mixer drives the LOUT2 and ROUT2 output. The following signals can be mixed into the speaker path: • PHONE (controlled by register 0Ch, see “Audio Inputs”) • LINE_IN (controlled by register 10h, see “Audio ...
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WM9711L VARIABLE RATE AUDIO / SAMPLE RATE CONVERSION By using an AC’97 Rev2.2 compliant audio interface, the WM9711L can record and playback at all commonly used audio sample rates, and offer full split-rate support (i.e. the DAC, ADC and AUXDAC ...
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Production Data BATTERY ALARM PRINCIPLE OF OPERATION The WM9711L has two on-chip comparators that can be used to implement a battery alarm function, or other functions such as a window comparator. Each comparator has one of its inputs tied to ...
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WM9711L COMP2 DELAY FUNCTION COMP2 has an optional delay function for use when the input signal is noisy. When COMP2 triggers and the delay is enabled (i.e. COMP2DEL is non-zero), then GPIO bit 14 does not change state immediately, and ...
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Production Data V Figure 6 Battery Alarm Example Schematic The typical schematic for a dual threshold battery alarm is shown above. This alarm has two thresholds, “dead battery” (COMP1) and “low battery” (COMP2). R1, R2 and R3 set the threshold ...
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WM9711L GPIO AND INTERRUPT CONTROL The WM9711L has five GPIO pins that operate as defined in the AC’97 Revision 2.2 specification. Each GPIO pin can be set input output, and has corresponding bits in ...
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Production Data GPIO BIT 6-10 11 12- Table 27 GPIO Bits and Pins w SLOT1 TYPE PIN NO. 2 BIT 5 GPIO Pin 44 6 GPIO Pin 45 7 GPIO Pin 46 8 ...
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WM9711L The properties of the GPIOs are controlled through registers 4Ch to 52h, as shown below. REGISTER ADDRESS 4Ch 4Eh 50h 52h 54h Table 28 GPIO Control The following procedure is recommended for handling interrupts: When the controller receives an ...
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Production Data REGISTER ADDRESS 58h Additional Functional Control Table 30 Additional Functionality for GPIO Pins POWER MANAGEMENT The WM9711L includes the standard power down control register defined by the AC’97 specification (register 26h). Additionally, it also allows more specific control ...
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WM9711L REGISTER ADDRESS 24h Additional power down control Note: When analogue inputs or outputs are disabled, they are internally connected to VREF through a large resistor (VREF=AVDD/2 except in OFF mode, when VREF itself is disabled). This maintains the potential ...
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Production Data LOW POWER STANDBY MODE If all the bits in registers 26h and 24h are set, then the WM9711L is in low-power standby mode and consumes very little current. A 1MΩ resistor string remains connected across AVDD to generate ...
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WM9711L AC97 DATA AND CONTROL INTERFACE INTERFACE PROTOCOL The WM9711Lhas a single AC’97 interface for both data transfer and control. The AC-Link uses 5 wires: • SDATAIN (pin 8) carries data from the WM9711L to the controller • SDATAOUT (pin ...
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Production Data INTERFACE TIMING Test Characteristics: DBVDD = 3.3V, DCVDD = 3.3V, DGND1 = DGND2 = 0V, T CLOCK SPECIFICATIONS Figure 9 Clock Specifications (50pF External Load) BITCLK frequency BITCLK period BITCLK output jitter BITCLK high pulse width (Note 1) ...
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WM9711L Setup to falling edge of BITCLK Hold from falling edge of BITCLK Output valid delay from rising edge of BITCLK SIGNAL RISE AND FALL TIMES SDATAOUT Figure 11 Signal Rise and Fall Times (50pF External Load) Incoming signals (from ...
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Production Data AC-Link powerdown occurs when PR4 (register 26h, bit 12) is set (see “Power Management” section). End of Slot 2 to BITCLK and SDATAIN low COLD RESET (ASYNCHRONOUS, RESETS REGISTER SETTINGS) RESETB Figure 13 Cold Reset Timing Note: For ...
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WM9711L REGISTER MAP Note: Highlighted bits differ from the AC’97 specification (newly added for non-AC’97 function, or same bit used in a different way, or for another function) Reg Name 15 00h Reset 0 02h LOUT2/ROUT2 Volume MU 04h Headphone ...
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... MONOOUT VOL w DESCRIPTION Indicates a codec from Wolfson Microelectronics Indicates 18 bits resolution for ADCs and DACs Indicates that the WM9711L supports bass boost Indicates that the WM9711L has a headphone output Indicates that the WM9711L does not support simulated stereo Indicates that the WM9711L supports bass and treble control ...
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WM9711L Register 08h controls the bass and treble response of the left and right audio DAC (but not AUXDAC). REG BIT LABEL ADDR 08h 11:8 BASS 6 DAT 4 TC 3:0 TRBL Register 0Ah controls the ...
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Production Data Register 12h controls the output signal of the auxiliary DAC. REG BIT LABEL ADDR 12h 15 A2H 14:12 A2HVOL 11 A2S 10:8 A2SVOL 7 A2P 6:4 A2PVOL 0 AXE Register 14h controls the side tone paths. REG BIT ...
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WM9711L Register 1Ch controls the recording gain. REG BIT LABEL ADDR 1Ch 15 RMU 14 GRL 13:8 RECVOLL GRR 5:0 RECVOLR Register 20h is a “general purpose” register as defined by the AC’97 specification. Only two bits ...
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Production Data Register 26h is for power management according to the AC’97 specification. Note that the actual state of many circuit blocks depends on both register 24h AND register 26h. REG BIT LABEL DEFAULT ADDR 26h 14 PR6 see note ...
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WM9711L Register 3Ah controls the SPDIF output. REG BIT LABEL ADDR 3Ah DRS 13:12 SPSR PRE 2 COPY 1 AUDIB 0 PRO Register 4Ch to 54h control the GPIO pins and virtual ...
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Production Data Register 58h controls several additional functions. REG BIT LABEL ADDR 58h 15:13 COMP2DEL 000 (no delay) 12 JIEN 0 11 FRC 0 10 SVD 0 (enabled) 3:2 DIE REV Indicates device revision. 10=Rev.C 1 WAKEEN 0 (no wake-up) ...
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WM9711L Register 64h controls the input signal of the auxiliary DAC. REG BIT LABEL ADDR 64h 15 XSLE 14:12 AUXDACSLT 11:0 AUXDACVAL Register 7Ch and 7Eh are read-only registers that indicate the identity of the device to the driver. REG ...
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Production Data APPLICATIONS INFORMATION RECOMMENDED EXTERNAL COMPONENTS Figure 15 External Components Diagram w WM9711L PD Rev 4.3 August 2006 59 ...
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WM9711L RECOMMENDED EXTERNAL COMPONENT VALUES COMPONENT SUGGESTED REFERENCE VALUE 100nF 10uF C9 100nF C10 10uF C11 100nF C12 10uF C13 100nF C14 10uF C27 and C28 22pF C15 - C20 1uF C21 - C23 ...
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Production Data AC-COUPLED HEADPHONE OUTPUT The circuit diagram below shows how to connect a stereo headphone to the WM9711L. WM9711L Figure 17 Simple Headphone Output Circuit Diagram The DC blocking capacitors C1 and C2 together with the load resistance determine ...
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WM9711L BTL SPEAKER OUTPUT LOUT2 and ROUT2 can differentially drive a mono 8Ω speaker as shown below. WM9711L Figure 19 Speaker Output Connection (INV = 1) The right channel is inverted by setting the INV bit, so that the signal ...
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Production Data JACK INSERT DETECTION The circuit diagram below shows how to detect when a headphone or headset has been plugged into the headphone socket. It generates an interrupt, instructing the controller to enable HPOUTL and HPOUTR and disable OUT3. ...
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WM9711L PACKAGE DRAWING FL: 48 PIN QFN PLASTIC PACKAGE EXPOSED GROUND PADDLE BOTTOM VIEW (A3) SIDE VIEW C SEATING PLANE W (A3 Exposed lead Half etch tie bar Symbols Dimensions ...
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... Production Data IMPORTANT NOTICE Wolfson Microelectronics plc (“Wolfson”) products and services are sold subject to Wolfson’s terms and conditions of sale, delivery and payment supplied at the time of order acknowledgement. Wolfson warrants performance of its products to the specifications in effect at the date of shipment. Wolfson reserves the right to make changes to its products and specifications or to discontinue any product or service without notice ...