CC8520 www.ti.com SWRS091A – MARCH 2010 2.4 GHz RF SoC FOR WIRELESS DIGITAL AUDIO STREAMING CC8520 - PurePath™ Wireless APPLICATIONS - Wireless high-quality digital audio - Wireless point-to-point audio link - Wireless headphones - Wireless loudspeakers - FEATURES Built-in audio protocol - CD-quality uncompressed audio - Excellent robustness and co-existence through multiple techniques - Adaptive Frequency Hopping - Forward Error Correction - Buffering and Retransmission - Error Concealment - Optional high quality audio compression Digital audio support - Digital I2S audio interface supports 1 or 2 audio channels at sample rates of 32, 40.275, 44.1 and 48 kHz, and supports 16 bit word-widths - Audio latency down to 20 ms - Data side-channel allows data to be sent alongside the audio between external host controllers External system - Seamless connection and control of selected TI audio codecs, DACs/ADCs and digital audio amplifiers using I2S and I2C - HID functions like power control, binding, volume control, audio channel selection can be mapped to I/Os - RoHS compliant 6mm x 6mm QFN-40 package Suited for systems targeting compliance with worldwide radio frequency regulations: ETSI EN 300 328 and EN 300 440 class 2 (Europe), FCC CFR47 Part 15 (US) and ARIB STD-T66 (Japan) Development tools - PC-based PurePath™ Wireless Configurator (PPW Configurator) for CC8520 configuration - CC8520 User’s Guide - CC85XXDK audio development kit - No software development needed RF section - 5 Mbps over-the-air data rate - Bandwidth-efficient modulation format - Excellent link budget with programmable output power up to +3.5 dBm and -83 dBm sensitivity - Seamless support for CC2590 range extender (+11dBm output power, -86dBm sensitivity) 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. PurePath™ is a trademark for Texas Instruments All other trademarks are the property of their respective owners. Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 31 32 SCL A R VD BI D AS 33 SDA XLNAEN 34 36 IOVDD GIO12 37 XPAEN 35 38 DCPL GIO13 39 D VD TN D AN X The PurePath™ Wireless platform is a costeffective and low-power solution optimized for wireless transmission of high-quality digital audio. 40 QFN-40 PACKAGE (TOP VIEW) DESCRIPTION AD1 IOVDD GIO9 18 19 20 WCLK 15 17 BCLK 14 AD0 MCLK 13 16 IOVDD 12 XI VDD A The CC8520 operates autonomously, and can be used with or without an external MCU. An external host processor can be connected through SPI and control some aspects of its operation. The CC8520 interfaces easily with other TI audio ICs and DSPs (using I2S and DSP/TDM interfaces). IO R VD ST D 11 N The CC8520 includes a robust built-in wireless audio transmission protocol and can control selected external audio devices. Utilizing numerous coexistence mechanisms allows the CC8520 to avoid interfering with, or being interfered by other 2.4 GHz radio systems. The CC8520, which supports 2 audio channels, is the first device in the PurePath™ Wireless platform. ABBREVIATIONS 2 ADC Analog to Digital Converter LAN Local Area Network ARIB Association of Radio Industries and Businesses LED Light Emitting Diode BER Bit Error Rate LNA Low Noise Amplifier CODEC Coder/Decoder MISO Master In Slave Out DAC Digital to Analog Converter MOSI Master Out Slave In DRC Dynamic Range Control MCU Microcontroller DSP Digital Signal Processor PA Power Amplifier EHIF External Host Interface PCM Pulse Code Modulation ESD Electro Static Discharge PER Packet Error Rate ETSI European Telecommunications Standard Institute PLL Phase Lock Loop FCC Federal Communications Commission PM Protocol Master FEC Forward Error Correction PPW PurePath™ Wireless FSK Frequency Shift Keying PS Protocol Slave FW Firmware PWM Pulse Width Modulation HID Human Interface Device RoHS Restriction of Hazardous Substances I2C Inter-Integrated Circuit (serial communications bus) RF Radio Frequency I2S Inter-IC Sound (serial bus for digital audio signals) SPI Serial Peripheral Interface IEEE Institute of Electrical and Electronics Engineers SoC System-on-Chip ISM Industrial, Scientific, Medical STD Standard JEDEC Joint Electron Device Engineering Council TDM Time-Division Multiplexing Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more susceptible to damage because very small parametric changes could cause the device not to meet its published specifications. ABSOLUTE MAXIMUM RATINGS(1) PARAMETER TEST CONDITIONS Min Max Unit Supply voltage All supply pins must have the same voltage –0.3 3.9 V –0.3 min(VDD + 0.3, 3.9) V 10 dBm 85 °C According to IPC/JEDEC J-STD-020 260 °C All pads, according to human-body model (HBM), JEDEC STD 22, method A114 2000 V According to charged-device model (CDM), JEDEC STD 22, method C101E 400 V Voltage on any digital pin Input RF level Storage temperature range Reflow soldering temperature ESD (1) (2) -40 Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) CAUTION: ESD sensitive device. Precaution should be used when handing the device in order to prevent permanent damage. RECOMMENDED OPERATING CONDITIONS PARAMETER 3 TEST CONDITIONS Min Max Unit Operating ambient temperature range, TA -40 +85 °C Operating supply voltage 2.0 3.6 V Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 GENERAL CHARACTERISTICS Measured on Texas Instruments CC8520 EM reference designs with TA = 25°C and VDD = 3.3 V, unless otherwise noted. PARAMETER TEST CONDITION RF frequency range MIN TYP 2400 MAX UNIT 2483.5 MHz Data rate Shaped 8FSK 5 Mbps Current consumption, power down state Voltage regulator / crystal oscillator off – status lost (POWERED_DOWN state) 1 µA Current consumption, audio sink Average current for audio sink with I2S interface active and uncompressed stereo audio link at 48 kHz, 16 bits. (PCM16) 25 mA 29 mA Average current for audio source with I2S interface active and uncompressed stereo audio link at 48 kHz, 16 bits, maximum output power. (PCM16) Latency between I2S interface on audio source and I2S interface on audio sink. Uncompressed 16 bit. Audio latency is programmable using the PPW Configurator [1]. Current consumption, audio source Audio latency 2048 48 44.1 40.275 32 Audio sample rate is programmable using the (1) PPW Configurator [1] Audio sample rate (1) 768 Samples kHz ±2000ppm tolerance RF CHARACTERISTICS, CC8520 Measured on Texas Instruments CC8520 EM reference designs with TA = 25°C and VDD = 3.3 V, unless otherwise noted. PARAMETER TEST CONDITION MIN TYP MAX UNIT Output power Maximum output power setting 3.5 dBm Receiver sensitivity 5 Mbps, 0.1 % BER -83 dBm Saturation (maximum input level) 5 Mbps, 0.1 % BER -2 dBm Adjacent channel, ±4MHz, wanted 3dB above sensitivity 8 dB Alternate channel, ±8MHz, wanted 3dB above sensitivity 35 dB 99% energy bandwidth 3.8 Selectivity Occupied bandwidth MHz (1) Suitable for systems targeting compliance with EN 300 328, EN 300 440 , FCC CFR47 Part 15 and ARIB STD-T-66 Spurious emission (1) Systems with external antenna connector: Margins for passing conducted requirements at sub 1GHz frequencies can be improved by using a simple band-pass filter connected between matching network and RF connector (1.6 pF in parallel with 1.6 nH); this filter must be connected to a good RF ground. 48-MHz CRYSTAL REQUIREMENTS General parameters with TA = 25°C and VDD = 3.3 V, unless otherwise noted. PARAMETER TEST CONDITION MIN Crystal frequency Crystal frequency accuracy requirement MAX 48 (1) UNIT MHz -50 50 ppm ESR Equivalent series resistance - 60 ohm C0 Crystal shunt capacitance - 3 pF CL Crystal load capacitance 15 17 pF (1) 4 TYP 16 Including aging and temperature dependency Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 AUDIO PLL CHARACTERISTICS TA = 25°C and VDD = 3.3 V, unless otherwise noted. PARAMETER TEST CONDITION MCLK Frequency range Programmable using the PPW Configurator [1] 32·FWCLK MIN 512·FWCLK BCLK Frequency range Programmable using the PPW Configurator [1] 32·FWCLK 256·FWCLK 31.936 48.096 kHz 200 ps WCLK Frequency range RMS jitter RMS period jitter for 1000 periods 80 MAX UNIT 38 37 36 35 34 33 32 IOVDD XLNAEN GIO13 GIO12 SDA SCL MCLK BCLK WCLK AD0 AD1 IOVDD GIO9 13 14 15 16 17 18 19 20 A R VD BI D AS 31 39 DCPL XPAEN IOVDD 12 D VD TN D AN X XI VDD A 40 PIN DESCRIPTION IO R VD ST D 11 N 1 TYP Figure 1 - CC8520 QFN Package Top View PIN PIN NAME PIN TYPE DESCRIPTION - GND Ground The exposed die attach pad must be connected to a solid ground plane underneath the chip 1 XANTN Digital I/O 1 FW2.0: Controlling external antenna switch (FW1.0/FW1.1: NC) 1 2 XANTP Digital I/O FW2.0: Controlling external antenna switch (FW1.0/FW1.1: NC) 3 CS_N Digital Input (pull-up) Serial SPI configuration interface, active low chip select 4 SCLK Digital I/O 5 MOSI 6 MISO 1 Serial SPI configuration interface, clock input/output 1 Serial SPI configuration interface, master data input, slave data output Digital I/O 1 Digital I/O General-purpose digital I/O pin 0 GIO0 7 GIO1 Serial SPI configuration interface, master data output, slave data input GIO0 output when CS_N is deasserted. 1 Digital I/O General-purpose digital I/O pin 1 Configurable with PurePath™ Wireless Configurator 8 9 GIO2 GIO3 1 Digital I/O 2 Digital I/O General-purpose digital I/O pin 2 General-purpose digital I/O pin 3 Configurable with PurePath™ Wireless Configurator 5 Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 PIN PIN NAME PIN TYPE DESCRIPTION 10 IODVDD Power (I/O pads) Digital power supply for the digital I/Os in the SPI interface and GIO1-GIO3. 11 RSTN Digital Input (pull-up) Active-low device reset 12 IOVDD Power (I/O pins) Digital power supply for the RSTN and MCLK digital I/O pins. 13 MCLK Digital I/O 1 GIO4 14 BCLK General-purpose digital I/O pin 4 1 Digital I/O GIO5 15 WCLK AD0 Digital I/O AD1 I2S/DSP audio interface word clock (in/out) General-purpose digital I/O pin 6 1 Digital I/O GIO7 17 I2S/DSP audio interface bit clock (in/out) General-purpose digital I/O pin 5 1 GIO6 16 Master clock output for external audio devices I2S/DSP audio interface data line 0 (in/out) General-purpose digital I/O pin 7 1 Digital I/O I2S/DSP audio interface data line 1 (in/out) General-purpose digital I/O pin 8 GIO8 18 IOVDD Power (I/O pins) Digital power supply for the digital I/Os in audio interface (BCLK-AD2). 19 AD2 Digital I/O 2 I2S/DSP audio interface data line 2 (in/out) Configurable with PurePath™ Wireless Configurator GIO9 20 AVDD Power (Analog) 2.0-3.6V analog power supply connection 21 XI Analog I/O Crystal oscillator pin input, or external clock input (48 MHz) 22 XO Analog I/O Crystal oscillator pin output (48 MHz) 23 AVDD Power (Analog) Analog power supply connection 24 RF_P RF I/O Positive differential RF input signal to LNA in receive mode Positive differential RF output signal from PA in transmit mode 25 RF_N RF I/O Negative differential RF input signal to LNA in receive mode Negative differential RF output signal from PA in transmit mode 26 AVDD Power (Analog) Analog power supply connection 27 AVDD Power (Analog) Analog power supply connection 28 AVDD Power (Analog) Analog power supply connection 29 VBAT Analog input Battery voltage supervisor (threshold level programmable by external resistor to positive battery terminal) 30 RBIAS Analog output External precision bias resistor for reference current. 56 kΩ, ±1% 31 AVDD Power (Analog) Analog power supply connection (Guard ring AVDD connection for digital noise isolation) 32 SCL 1 Digital I/O GIO10 33 SDA General-purpose digital I/O pin 10 1 Digital I/O GIO11 34 35 GIO13 I2C master data line. Must be connected to external pull-up General-purpose digital I/O pin 11 1 General-purpose digital I/O pin 12 1 General-purpose digital I/O pin 13 2 Digital I/O Digital I/O 36 XLNAEN Digital I/O Control external LNA 37 IODVDD Power (I/O pads) Digital power supply for SCL-GIO15 pins. 38 6 GIO12 I2C master clock line. Must be connected to external pull-up XPAEN 2 Digital I/O Control external PA Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 PIN PIN NAME PIN TYPE DESCRIPTION 39 DCPL Power (Digital) 1.7V-1.85 V linear voltage regulator output to which a 1 uF decoupling capacitor should be attached. For test-purposes an external digital supply voltage (1.62-1.98 V) can be applied here, bypassing the voltage regulator. NOTE: The voltage regulator is intended for use with the CC8520 chip only. It cannot be used to provide supply voltage to other devices. 40 1 2 DVDD Power (Digital) Digital power supply for the linear voltage regulator. Digital I/O pad with 4 mA source/sink capability, programmable direction and pull-up, pull-down or high-impedance. Digital I/O pad with 20 mA source/sink capability, programmable direction and pull-up, pull-down or high-impedance. 2.0V-3.6V Power Supply R101 RBIAS 30 xANTP VBAT 29 CSN AVDD 28 4 SCLK AVDD 27 5 MOSI AVDD 26 6 MISO RF_N 25 7 GIO1 RF_P 24 8 GIO2 AVDD 23 9 GIO3 X0 10 IOVDD X1 22 21 IOVDD MCLK BCLK WCLK AD0 AD1 IOVDD GIO9/ AD2 AVDD 12 13 14 15 16 17 18 19 20 Antenna (50 Ohm) C301 C306 L302 L303 C305 L304 C302 L301 C303 C401 RSTN CC8520 Antenna (50 Ohm) Alternative: CC2590 External LNA/PA C402 32 SCL AVDD 31 SDA 33 GIOI2 34 36 GIOI3 35 DCPL 39 CC2590 + Matching/ Filtering XTAL 3 IOVDD 37 2 xPAEN xANTM 11 Audio Device 1 xLNAEN 38 DVDD 40 C391 Figure 2 - CC8520 Application Circuit 7 Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM 2 SWRS091A – MARCH 2010 SYSTEM DESCRIPTION The CC8520 is a 2.4GHz wireless SoC operating in the 2.4 GHz ISM band designed for streaming digital audio wirelessly. It is designated to operate autonomously (without any host MCU) but certain aspects of operation can be controlled by a host MCU. Before operation, the CC8520 must be programmed with a user-specific FW image, which can be created using the PPW Configurator [1]. The configuration file can be programmed into the on-chip Flash memory by using the PPW Configurator and the CC Debugger [2] and is also programmable in a production line. The configuration image contains information identifying the device as a master or a slave, how many channels are supported, the direction of the audio channels, HID support, audio device supported and more. If CC8520 is configured as a slave, it will automatically start searching for a valid audio network. If configured as a master, it will start a new network. As soon as a network is formed, audio transmission will commence. The CC8520 will automatically configure an attached supported audio IC (see compatibility list for a list of supported ICs in chapter 3). 3 SUPPORTED AUDIO DEVICES Supported ADC/DAC/Codec/Amplifier Devices The following device drivers will initially be implemented: Device DESCRIPTION Low-Power Stereo Codec with 6 Inputs, 6 Outputs, Speaker/HP Amp and Enhanced Digital Effects Low-Power Stereo CODEC with 6 Inputs, 6 Outputs, HP Amp AIC3104 and Enhanced Digital Effects ADC3101 92dB SNR Low-Power Stereo ADC with Digital Mic Support AIC3204: Very Low-Power Stereo Audio CODEC with Power AIC3204 Tune™ Technology Note: The complete list of supported devices can be found in the PPW Configurator [1]. AIC3101 Supported SPDIF-RX / SPDIF-TX / DSP Devices The following device drivers will be implemented: Device DESCRIPTION DIR9001 96 kHz, 24-Bit Digital Audio Interface Receiver DIT4096 96 kHz, Digital Audio Transmitter DSP Generic Digital Audio Device Note: The complete list of supported devices can be found in the PPW Configurator [1]. Other audio devices The CC8520 is compatible with any I2S-based audio device that does not need to be configured at power-up and that is compatible with the requirements listed in the audio interface (Chapter 6). It is also compatible with a wide range of TI DSPs using an I2S interface. 8 Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM 4 SWRS091A – MARCH 2010 NETWORK TOPOLOGY AND NOMENCLATURE A CC8520 network consists of one Protocol Master (PM) and one or two Protocol Slave(s) (PS). The PM provides the audio reference clock and controls network association. The PS regenerate the audio reference clock based on the packets received. Audio can be transmitted from the PM to a PS. The device receiving the audio is called an Audio Sink, the device sending the audio is called an Audio Source. A device can be both Audio Sink and Audio Source at the same time (bidirectional audio will be supported in future revisions of the firmware). The CC8520 network also includes a Data Side-Channel which is a bi-directional data link between the PM and all PS in the network. This is further described in chapter 8. Figure 3 illustrates the different network topologies that can be formed with CC8520 using the different firmware versions. Audio channel PM FW1.0 FW1.0 PM PS PS Data channel 2 audio channels: stereo audio PM to PS 1 audio channel: mono audio PM to PS PS1 FW1.1 PM PS1 PM PS2 PS2 2 channels: mono audio PM to PS1 mono audio PM to PS2 2 channels: mono audio PS1 to PM mono audio PS2 to PM FW2.0 PM FW1.1 FW2.0 PS1 PS PM PS2 2 channels: mono audio PM to PS mono audio PS to PM 2 channels: mono audio PM to PS1 mono audio PS2 to PM Figure 3 CC8520 topologies supported for different CC8520 FW revisions (Yellow arrow = audio channel. Blue arrow = data side channel. PM = Protocol Master. PS = Protocol Slave) 9 Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM 10 SWRS091A – MARCH 2010 Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM 5 SWRS091A – MARCH 2010 COEXISTENCE AND AUDIO COMPRESSION The CC8520 implements a wide range of techniques to maximize coexistence performance when operating in an environment with other 2.4 GHz wireless devices. The built-in protocol implements adaptive frequency hopping. This helps improve coexistence with RF sources that do not move around in frequency, such as IEEE 802.11 (Wireless LAN) devices, as well as providing robust performance in a multipath RF environment. Audio is buffered in the receiver, and any data which is not correctly received, is retransmitted utilizing the high raw datarate (5Mbps). When link quality is poor (e.g. when moving out of range), audio is muted until a reliable link is restored. Forward Error Correction (FEC) is built into the CC8520 modulation scheme. Furthermore, packets are divided into independent sections so that an error in one section does not mean the whole packet is lost. The CC8520 supports uncompressed PCM16 audio, with no modifications made to the digital audio. High quality audio compression can optionally be enabled and effectively reducing average current consumption by lowering the radio duty-cycle. Compression improves robustness further, as there is less data sent and more time available for retransmission. 6 AUDIO INTERFACE The CC8520 audio interface is I2S compatible and it supports up to 2 audio channels. The audio interface on the protocol master can be configured as clock master (supplied from the internal audio PLL) or as clock slave (clock supplied from external audio IC). The audio interface has 2 data pins. Each of these can be configured as an input, output or unused. The audio interface can be configured to support I2S. The CC8520 supports word widths of 16 to 24 bits, but over-the-air 16 bits is always used. 7 HUMAN INTERACTION DRIVERS (HID) The CC8520 supports basic HID functionality without an external MCU. This means that some basic functionality can be controlled on the slave remotely from the master. The HID functionality supported includes: - power control (to turn devices on/off) - network binding (to pair devices) - volume control (volume control can be managed locally) - Status LED (blinking diode to indicate the status of the RF link) All HID functions are configurable in the PPW Configurator [1] and can be mapped to the CC8520 I/O pins. 8 EXTERNAL HOST INTERFACE (EHIF / Data side channel) The external host interface (EHIF) allows an external host device, e.g. a microcontroller, to: • Control the operation of and poll status from the CC8520, mainly by taking over driver functionality. • Communicate with other external host devices through an integrated data side-channel • Get access to test functionality for audio, I/O and RF. The external host interface is available via SPI with a single interrupt pin. The external host will act as SPI master and CC8520 will act as SPI slave. User specified data can be transferred between the master EHIF and the slave EHIFs, in both directions using the data side-channel. The data side-channel establishes robust, ensured-delivery connections in both directions from any slave to the master or from master to any slave (direct slave to slave communication is not 11 Copyright © 2010, Texas Instruments Incorporated CC8520 WWW.TI.COM SWRS091A – MARCH 2010 available). There is no specified minimum throughput for the data side-channel but under normal operating conditions and data rate of up to 30 kbps is possible in each direction. More details can be found in the CC8520 User’s Guide [2]. 9 REFERENCES [1] PurePath™ Wireless Configurator [2] CC8520 product folder [3] CC-Debugger 12 Copyright © 2010, Texas Instruments Incorporated PACKAGE OPTION ADDENDUM www.ti.com 5-Apr-2010 PACKAGING INFORMATION Orderable Device Status (1) Package Type Package Drawing Pins Package Eco Plan (2) Qty CC8520RHAR ACTIVE VQFN RHA 40 2500 Green (RoHS & no Sb/Br) CU NIPDAU Level-3-260C-168 HR CC8520RHAT ACTIVE VQFN RHA 40 250 CU NIPDAU Level-3-260C-168 HR Green (RoHS & no Sb/Br) Lead/Ball Finish MSL Peak Temp (3) (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) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability information and additional product content details. TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes. Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above. Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material) (3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. 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