DESCRIPTION
The WM9713L is a highly integrated input/output device designed for mobile computing and communications.
The chip is architected for dual CODEC operation, supporting Hi-Fi stereo Codec functions via the AC link interface, and additionally supporting voice Codec functions via a PCM type Synchronous Serial Port (SSP). A third, auxiliary DAC is provided which may be used to support generation of supervisory tones, or ring-tones at different sample rates to the main codec.
The device can connect directly to a 4-wire or 5-wire touchpanel, mono or stereo microphones, stereo headphones and a stereo speaker, reducing total component count in the system. Cap-less connections to the headphones, speakers, and earpiece may be used, saving cost and board area. Additionally, multiple analog input and output pins are provided for seamless integration with analog connected wireless communication devices.
All device functions are accessed and controlled through a single AC-Link interface compliant with the AC’97 standard. The 24.576 MHz masterclock can be input directly or generated internally from a 13MHz (or other frequency) clock by an on-chip PLL. The PLL supports a wide range of input clock from 2.048MHz to 78.6MHz.
The WM9713L operates at supply voltages from 1.8V to 3.6V. Each section of the chip can be powered down under software control to save power. The device is available in a small leadless 7x7mm QFN package, ideal for use in hand-held portable systems.

FEATURES
*AC’97 Rev 2.2 compatible stereo codec
-DAC SNR 94dB, THD –85dB
-ADC SNR 87dB, THD –86dB
-Variable Rate Audio, supports all WinCE sample rates
-Tone Control, Bass Boost and 3D Enhancement
*On-chip 45mW headphone driver
*On-chip 400mW mono or stereo speaker drivers
*Stereo, mono or differential microphone input
-Automatic Level Control (ALC)
-Mic insert and mic button press detection
*Auxiliary mono DAC (ring tone or DC level generation)
*Seamless interface to wireless chipset
*Resistive touchpanel interface
-Supports 4-wire and 5-wire panels
-12-bit resolution, INL ±2 LSBs (<0.5 pixels)
-X, Y and touch-pressure (Z) measurement
-Pen-down detection supported in Sleep Mode
*Additional PCM/I2S interface to support voice CODEC
*PLL derived audio clocks.
*Supports input clock ranging from 2.048MHz to 78.6MHz
*1.8V to 3.6V supplies (digital down to 1.62V, speaker up to 4.2V)
*7x7mm 48-lead QFN package

APPLICATIONS
*Personal Digital Assistants (PDA) with or without phone
*Smartphones
*Handheld and Tablet Computers

WM9713LGEFL/V, WM9713LGEFL/RV

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General description
The TFA9812 is a high-efficiency Bridge Tied Load (BTL) stereo Class-D audio amplifier with a digital I2S audio input. It is available in a HVQFN48 package with exposed die paddle. The exposed die paddle technology enhances the thermal and electrical performances of the device.
The TFA9812 features digital sound processing and audio power amplification. It supports I2C control mode and Legacy mode. In Legacy mode I2C involvement is not needed because the key features are controlled by hardware pin connections.
A continuous time output power of 2 ´ 12 W (RL = 8 W, VDDP = 15 V) is supported without an external heat sink. Due to the implementation of a programmable thermal foldback even for high supply voltages, higher ambient temperatures, and/or lower load impedances, the device operates without sound interrupting behavior.
TFA9812 is designed in such a way that it starts up easily (no special power-up sequence required). It features various soft and hard impact protection mechanisms to ensure an application that is both user friendly and robust.
A modulation technique is applied for the TFA9812, which supports common mode choke approach (1 common mode choke only per BTL amplifier stage). This minimizes the number of external components.

Features
*General features
-3.3 V and 8 V to 20 V external power supply
-High efficiency and low power dissipation
-Speaker outputs fully short circuit proof across load, to supply lines and ground
-Pop noise free at power-up/power-down and sample rate switching
-Low power Sleep mode
-Overvoltage and undervoltage protection on the 8 V to 20 V power supply
-Undervoltage protection on the 3.3 V power supply
-Overcurrent protection (no audible interruptions)
-Overdissipation protection
-Thermally protected and programmable thermal foldback
-Clock error protection
-I2C mode control or Legacy mode (i.e. no I2C) control
-Four different I2C addresses supported
-Internal Phase-Locked Loop (PLL) without using external components
-No high system clock required (PLL is able to lock on BCK)
-No external heat sink required
-5 V tolerant digital inputs
-Supports dual coil inductor application
-Easy application and limited external components required
*DSP features
-Digital parametric 10-band equalizer
-Digital volume control per channel
-Selectable +24 dB gain boost
-Analog interface to digital volume control in Legacy mode
-Digital clip level control
-Soft and hard mute
-Thermal foldback threshold temperature control
-De-emphasis
-Output power limiting control
-Polarity switch
-Four Pulse Width Modulation (PWM) switching frequency settings
*Audio data input interface format support
-Master or slave Master Clock (MCLK), Bit Clock (BCK) and Word Select (WS) signals
-Philips I2S, standard I2S
-Japanese I2S, Most Significant Bit (MSB) justified
-Sony I2S, Least Significant Bit (LSB) justified
-Sample rates from 8 kHz to 192 kHz

Applications
*Digital-in Class-D audio amplifier applications
*CRT and flat-panel television sets
*Flat-panel monitors
*Multimedia systems
*Wireless speakers
*Docking stations for MP3 players

TFA9812HN

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General Description
The eKA8564A is a USB digital audio controller with audio data processing that supports 16-bit 2-channel format at 48kHz, 44.1kHz, 32kHz or 8kHz sampling rate. The device has an integrated USB transceiver, USB core, MCU, DAC, ADC, and I2S Input/Output. It can handle a high-level USB protocol, and manages user interface via HID I/O pins.

Features
*USB Specification v1.1 Compliant
*USB Audio and Human Interface Device (HID) Class v1.1 Compliant
*Supports 12 Mbits/s Full Speed Serial Data Transmission
*Supports 48kHz, 44.1kHz, 32kHz, 8kHz sampling rate
*Single oscillator: 6MHz
*Audio buffer size: 192×16 bits × 2
*Total of four Endpoints: Endpoint 0 for control transfer, Endpoint 1 for audio streaming out, Endpoint 2 for streaming in , Endpoint 3 for HID
*Supports stereo/mono playback
*Built-in 2-channel D/A Converter with 10-bit resolution
*Built-in 1-channel A/D converter with 10-bit resolution
*Alternative settings supported by the audio streaming-out interface:
-ALT-0: (default setting) zero isochronous bandwidth
-ALT-1: 16-bit PCM 2 channel
*Alternative settings supported by the audio streaming-in interface:
-ALT-0: (default setting) zero isochronous bandwidth
-ALT-1: 16-bit PCM stereo
*2K×13 on-chip program ROM
*32 bytes of general purpose RAM (R20~R3F)
*RC Oscillator with internal RC
*5 level stack for subroutine nesting
*Total of 8 HID control pins (Mute Speaker, Volume Down, Volume Up, Mute REC, Play/Pause, Stop, Scan next track, Scan previous track)
*Total of 4 LED output pins (REC Mute LED, Power LED, Play LED, SPK Mute LED)
*MCU run at 6 MHz frequency
*Package: 48-pin LQFP

Applications
*USB Speaker
*USB Microphone
*USB Telephone

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General Description
The kB2338A is a high efficiency, 3W mono class-D audio power amplifier. A low noise, filterless PWM architecture eliminates the output filter, reducing external component count, system cost, and simplifying design.
Operating in a single 5V supply, kB2338A is capable of driving 4Ω speaker load at a continuous average output of 3W/10% THD+N or 2W/1% THD+N. The kB2338A has high efficiency with speaker load compared to a typical class AB amplifier. With a 3.6V supply driving an 8Ω speaker , the efficiency for a 400mW power level is 88%. In cellular handsets, the earpiece, speaker phone, and melody ringer can each be driven by the kB2338A. The gain of kB2338A is externally configurable which allows independent gain control from multiple sources by summing signals from seperate sources.
The kB2338A is available in space-saving WCSP and DFN packages.

Features
*Unique Modulation Scheme Reduces EMI Emissions
*Efficiency at 3.6V With an 8-Ω Speaker:
-88% at 400 mW
-80% at 100 mW
*Low 2.38-mA Quiescent Current and 0.5-μA Shutdown Current
*2.5V to 6.0V Wide Supply Voltage
*Optimized PWM Output Stage Eliminates LC Output Filter
*Improved PSRR (-72 dB) Eliminates Need for a Voltage Regulator
*Fully Differential Design Reduces RF Rectification and Eliminates Bypass Capacitor
*Improved CMRR Eliminates Two Input Coupling Capacitors
*Internally Generated 250-kHz Switching Frequency
*Integrated Pop and Click Suppression Circuitry
*1.5mm x 1.5mm Wafer Chip Scale Package (WCSP) and 3mm x 3mm DFN-8 package
*RoHS compliant and 100% lead(Pb)-free

Applications
*Cellular Phone
*Portable Electronic Devices
*PDAs and Smart Phones
*Portable Computer

KBA2338-WCSP

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General Description
The eKA8566A is a USB digital audio controller with audio data processing that supports 16-bit 2-channel format at 48kHz, 44.1kHz, 32kHz or 8kHz sampling rate. The device has an integrated USB transceiver, USB core, MCU, DAC, ADC, and I2S Input/Output. It can handle a high-level USB protocol, and manages user interface via general I/O pins.

Features
*USB Specification v1.1 Compliant
*USB Audio and Human Interface Device (HID) Class v1.1 Compliant
*Supports 12 Mbits/sec Full Speed Serial Data Transmission
*Supports 48kHz, 44.1kHz, 32kHz, 8kHz sampling rate
*Single oscillator: 6MHz
*Audio buffer size: 192×16 bits × 2
*Total of four Endpoints: Endpoint 0 for control transfer, Endpoint 1 for audio streaming out, Endpoint 2 for streaming in , Endpoint 3 for HID
*Supports stereo/mono playback
*Built-in 2-channel D/A Converter with 10-bit resolution
*Built-in 1-channel A/D converter with 10-bit resolution
*Alternative settings supported by the audio streaming-out interface:
-ALT-0: (default setting) zero isochronous bandwidth
-ALT-1: 16-bit PCM 2 channel
*Alternative settings supported by the audio streaming-in interface:
-ALT-0: (default setting) zero isochronous bandwidth
-ALT-1: 16-bit PCM stereo
*2K×13 on-chip program ROM
*32 bytes of general purpose RAM (R20~R3F)
*RC Oscillator with internal RC
*5 level stack for subroutine nesting
*Total of 12 I/O pins (Port 50 ~ Port 57, Port 60~Port 63)
*Supports buzzer/LED output pin
*Port 5 and Port 6 with pull-up resistors
*Wake-up pin in Port 5 and Port 6
*MCU runs at 6 MHz frequency
*Package: 48-pin LQFP

Applications
*Skype + PSTN (Public Switched Telephone Network)

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GENERAL DESCRIPTION
The SSM2319 is a fully integrated, high efficiency Class-D audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply. It is capable of delivering 3 W of continuous output power with <1% THD + N driving a 3 Ω load from a 5.0 V supply.
The SSM2319 features a high efficiency, low noise modulation scheme that does not require any external LC output filters. The modulation continues to provide high efficiency even at low output power. It operates with 90% efficiency at 1.4 W into 8 Ω or 85% efficiency at 3 W into 3 Ω from a 5.0 V supply and has an SNR of 98 dB. Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures.
SYNC can be activated in the event that end users are concerned about clock intermodulation (beating effect) of several amplifiers in close proximity.
The SSM2319 has a micropower shutdown mode with a typical shutdown current of 20 nA. Shutdown is enabled by applying a logic low to the SD pin.
The device also includes pop-and-click suppression circuitry. This minimizes voltage glitches at the output during turn-on and turn-off, reducing audible noise on activation and deactivation.
The default gain of the SSM2319 is 12 dB, but users can reduce the gain by using a pair of external resistors (see the Gain section).
The SSM2319 is specified over the industrial temperature range of −40°C to +85°C. It has built-in thermal shutdown and output short-circuit protection. It is available in a 9-ball, 1.5 mm × 1.5 mm wafer level chip scale package (WLCSP).

FEATURES
*Filterless Class-D amplifier with ultraefficient spread-spectrum Σ-Δ modulation
*Internal modulator synchronization (SYNC)
*3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with <1% total harmonic distortion (THD)
*90% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
*Signal-to-noise ratio (SNR): 98 dB
*Single-supply operation: 2.5 V to 5.5 V
*Ultralow shutdown current: 20 nA
*Short-circuit and thermal protection with autorecovery
*Available in 9-ball, 1.5 mm × 1.5 mm WLCSP
*Pop-and-click suppression
*Built-in resistors reduce board component count
*Default fixed 12 dB or user-adjustable gain setting

APPLICATIONS
*Mobile phones
*MP3 players
*Portable gaming
*Portable electronics
*Educational toys

SSM2319CBZ-R2, SSM2319CBZ-REEL, SSM2319CBZ-REEL7, EVAL-SSM2319Z

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DESCRIPTION
The WM9715L is a highly integrated input / output device designed for mobile computing and communications. The device can connect directly to a 4-wire or 5-wire touchpanel, mono or stereo microphones, stereo headphones and a mono speaker, reducing total component count in the system. Additionally, phone input and output pins are provided for seamless integration with wireless communication devices.
The WM9715L also offers up to four auxiliary ADC inputs for analogue measurements such as temperature or light. To monitor the battery voltage in portable systems, the WM9715L has two uncommitted comparator inputs.
All device functions are accessed and controlled through a single AC-Link interface compatible with the AC’97 standard (rev 2.2). Additionally, the WM9715L can generate interrupts to indicate pen down, pen up, availability of touchpanel data, low battery, and dead battery.
The WM9715L operates at supply voltages from 1.8 to 3.6 Volts. Each section of the chip can be powered down under software control to save power. The device is available in a small leadless 7x7mm QFN package, ideal for use in handheld portable systems.

FEATURES
*AC’97 Rev 2.2 compatible stereo codec
-DAC SNR 90dB, THD –86dB
-ADC SNR 88dB, THD –88dB
-Variable Rate Audio, supports all WinCE sample rates
-Tone Control, Bass Boost and 3D Enhancement
*On-chip 45mW headphone driver
*On-chip 400mW mono speaker driver
*Stereo, mono or differential microphone input
-Automatic Level Control (ALC)
*Auxiliary mono DAC (ring tone or DC level generation)
*Seamless interface to wireless chipset
*Resistive touchpanel interface
-Supports 4-wire and 5-wire panels
-12-bit resolution, INL ±3 LSBs (<0.5 pixels)
-X, Y and touch-pressure (Z) measurement
-Pen-down detection supported in Sleep Mode
*2 comparator inputs for battery monitoring
*Up to 4 auxiliary ADC inputs
*1.8V to 3.6V supplies
*7x7mm QFN

APPLICATIONS
*Personal Digital Assistants (PDA)
*Smartphones
*Handheld and Tablet Computers

WM9715LGEFL/V, WM9715LGEFL/RV, WM9715LGEFL, WM9715LGEFLV

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DESCRIPTION
As a stereo audio speaker which is operating on a single 5V supply, the UTC PA3017 is capable of delivering 2W of output power per channel into 3Ω loads with less than 1% THD+N. Way of two terminals (GAIN0 and GAIN1) can configured and control the amplifier gain. It also provide gain settings of 6 dB, 10 dB, 15.6 dB, and 21.6 dB (inverting). Other features include internal gain control which requires few external components, an active-low shutdown mode input and thermal shutdown protection.

FEATURES
*2W Output power into 3Ω load from 5V supply each channel
*Gain control internally
*Differential input fully
*Depop circuitry
*Shutdown protection thermally

PA3017-N20-R, PA3017-N20-T

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GENERAL DESCRIPTION
The SSM2335 is a fully integrated, high efficiency, Class-D audio amplifier. It is designed to maximize performance for mobile phone applications. The application circuit requires a minimum of external components and operates from a single 2.5 V to 5.5 V supply. It is capable of delivering 3 W of continuous output power with <1% THD + N driving a 3 Ω load from a 5.0 V supply.
The SSM2335 features a high efficiency, low noise modulation scheme that requires no external LC output filters. The modu-lation continues to provide high efficiency even at low output power. It operates with 93% efficiency at 1.4 W into 8 Ω or 85% efficiency at 3 W into 3 Ω from a 5.0 V supply and has an SNR of >96 dB. Spread-spectrum pulse density modulation is used to provide lower EMI-radiated emissions compared with other Class-D architectures.
The SSM2335 has a micropower shutdown mode with a typical shutdown current of 20 nA. Shutdown is enabled by applying a logic low to the SD pin.
The device also includes pop-and-click suppression circuitry. This suppression circuitry minimizes voltage glitches at the output during turn-on and turn-off, reducing audible noise on activation and deactivation.
The fully differential input of the SSM2335 provides excellent rejection of common-mode noise on the input. Input coupling capacitors can be omitted if the input dc common-mode voltage is approximately VDD/2.
The default gain of the SSM2335 is 18 dB, but users can reduce the gain by using a pair of external resistors (see the Gain section).
The SSM2335 is specified over the industrial temperature range of −40°C to +85°C. It has built-in thermal shutdown and output short-circuit protection. It is available in a 9-ball, 1.5 mm × 1.5 mm wafer level chip scale package (WLCSP).

FEATURES
*Filterless Class-D amplifier with Σ-Δ modulation
*No sync necessary when using multiple Class-D amplifiers from Analog Devices, Inc.
*3 W into 3 Ω load and 1.4 W into 8 Ω load at 5.0 V supply with <1% total harmonic distortion (THD + N)
*93% efficiency at 5.0 V, 1.4 W into 8 Ω speaker
*>96 dB signal-to-noise ratio (SNR)
*Single-supply operation from 2.5 V to 5.5 V
*20 nA ultralow shutdown current
*Short-circuit and thermal protection
*Available in 9-ball, 1.5 mm × 1.5 mm WLCSP
*Pop-and-click suppression
*Built-in resistors reduce board component count
*Default fixed 18 dB or user-adjustable gain setting

APPLICATIONS
Mobile phones
MP3 players
Portable gaming
Portable electronics
Educational toys

SSM2335CBZ-R2, SSM2335CBZ-REEL, SSM2335CBZ-REEL7, EVAL-SSM2335Z

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DESCRIPTION
The MP7731 is a mono, 5W - 30W Class D Audio Amplifier. It is one of MPS’ second generation of fully integrated audio amplifiers which dramatically reduces solution size by integrating the following:
*Start Up / Shut Down Pop Elimination
*Short Circuit Protection Circuits
*180mΩ Power MOSFETs
*Mute / Standby Mode
The MP7731 utilizes a full bridge output structure capable of delivering 5W - 30W into 4Ω speakers. As in all other MPS Class D Audio Amplifiers, this device exhibits the high fidelity of a Class AB amplifier with an efficiency of 90%. The circuit is based on the MPS’ proprietary variable frequency topology Analog Adaptive Modulation (AAM™, Patent No. 6,420,930; other patents pending) that delivers excellent PSRR, fast response time and operates on a single power supply.

FEATURES
*30W into 4Ω with VDD = 16.5V
*90% Efficiency at 5W
*Amplifies Full Audio Range with Low THD+N
-Typical = 0.1%
*9.5V to 18V Supply Voltage Operation
*Full Bridge Output Drive
*4 Integrated 180mΩ Switches
*Turn On / Turn Off Click and Pop Suppression
*Integrated Short Circuit Protection
*Integrated Thermal shutdown
*Mute / Standby Mode

APPLICATIONS
*Flat Panel LCD and PDP Displays
*Notebook and Multimedia Computers
*Televisions
*Home Stereos
*DVD and VCD Players
*Game Devices and Systems
*Monitors

EV0045, MP7731DF

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