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| CS42L73 Ultra Low Power Mobile Audio and Telephony CODEC Product Overview For the full datasheet, visit www.cirrus.com/codec-datasheets/CS42L73-17 Stereo ADC Dual Analog or Digital MIC Support Dual MIC Bias Generators Four DACs Coupled to Five Outputs System Features Native (no PLL required) Support for 6/12/24 Ground-Centered Stereo Headphone Amp. Ground-Centered Stereo Line Output Mono Ear Speaker Amplifier Mono 1 W Speakerphone Amplifier Mono Speakerphone Line Output for Stereo Speakerphone Expansion Three Serial Ports with Asynchronous Sample Rate Converters Digital Audio Mixing and Routing - - - - - Ultra Low Power Consumption 3.5 mW Quiescent Headphone Playback Applications Smart Phones, UMPCs, and MIDs (Features continued on page 2) VCP +VCP_FILT -VCP_FILT MHz, 13/26 MHz, and 19.2/38.4 MHz Master Clock Rates in Add. to Typ. Audio Clock Rates Integrated High-efficiency Power Management Reduces Power Consumption - Internal LDO Regulator to Reduce Internal Digital Operating Voltage to VL/2 - Step-down Charge Pump Provides Low Headphone/Line Out Supply Voltage - Inverting Charge Pump Accommodates Low System Voltage by Providing Negative Rail for HP and Line Amp Flexible Speakerphone Amplifier Powering - 3.00 V to 5.25 V Range - Independent Cycling Power Down Management - Individual Controls for ADCs, Dig. MIC Interface, MIC Bias Generators, Serial Ports, and Output Amplifiers & Associated DACs Programmable Thermal Overload Notification High-speed ICTM Control Port (400 kHz) VL VD_FILT VA LDO VD_FILT VA CS42L73 Step-Down Inverting MCLK +VCP_FILT -VCP_FILT +VCP_FILT + Headphone Outputs Pseudo Diff. Input MCLK1 MCLK2 MCLK Digital Processing Digital Mixer -VCP_FILT +VCP_FILT Volume, Mute, Limiter Stereo Multi-bit DAC + Line Outputs Pseudo Diff. Input + - Control Port Control Port MIC/Line Input Path SDIN MCLK B -VCP_FILT VA Ear Speaker Output Auxiliary Serial Port Level Shifters Auxiliary Serial Port ASRC ASRC SDOUT SDIN Volume, Mute, Limiter Auxiliary Serial Port Stereo Multi-bit DAC A VP Audio Serial Port + Decimator, HPF, Noise Gate, ALC, Volume, Mute, Swap/Mono VP + Speakerphone Output - (Left) VP Audio Serial Port Audio Serial Port ASRC ASRC SDOUT B + - Speakerphone Line Output (Right) Voice Serial Port SDIN Line Input (Left) MCLK Voice Serial Port Voice Serial Port ASRC ASRC SDOUT Pseudo Diff. Input Line Input (Right) Stereo Multi-bit ADC + - +10 or +20 dB + - -6 to +12 dB, 0.5 dB steps MIC 1 MIC 2 Pseudo Diff. Input Pseudo Diff. Input Digital MIC Interface Digital MIC Interface MIC Bias MIC Bias VP + - Short Detect +10 or +20 dB MIC 1 Bias MIC 2 Bias MIC2_SDET Advance Product Information http://www.cirrus.com This document contains information for a new product. Cirrus Logic reserves the right to modify this product without notice. Copyright Cirrus Logic, Inc. 2010 (All Rights Reserved) MAY `10 DS882PB1 CS42L73 Stereo Analog to Digital Features 91 dB Dynamic Range (A-wtd) -85 dB THD+N Independent ADC Channel Control 2:1 Stereo Analog Input MUX Stereo Line Input Analog Vol. Ctl. (+12 to -50 dB in 1 dB steps; to -76 dB in 2 dB steps) with Zero-cross Trans. Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) with Soft-ramp Transitions Programmable Peak-detect and Limiter Mono DAC to Ear Speaker Amplifier High Power Output at -70 dB (0.032%) THD+N - Shared Pseudo-differential Reference Input Dual Analog MIC Inputs - Pseudo-diff. or Single-ended - Two, Independent, Programmable, Lownoise, MIC Bias Outputs - MIC Short Detect to Support Headset Button Analog Programmable Gain Amplifier (PGA) (+12 to -6 dB in 0.5 dB steps) +10 dB or +20 dB Analog MIC Boost in Addition to PGA Gain Settings Programmable Automatic Level Control (ALC) - Noise Gate for Noise Suppression - Progr. Threshold & Attack/Release Rates - 45 mW into 16 @ 1.8 V Pop and Click Suppression Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) with Soft-ramp Transitions Programmable Peak-detect and Limiter Mono DAC to Speakerphone Amplifier High Output Power at 1% THD+N Dual Digital Microphone Interface Programable Clock Rate - 1.18/0.84/0.66 W into 8 @ 5.0/4.2/3.7 V Direct Battery-powered Operation Pop and Click Suppression Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) with Soft-ramp Transitions Programmable Peak-detect and Limiter - Integer Divide by 2 or 4 of Internal MCLK Stereo DAC to Headphone Amplifier 94 dB Dynamic Range (A-wtd) -81 dB THD+N into 32 Integrated Step-down/Inverting Charge Pump Class H Amplifier - Automatic Supply Adj. Mono DAC to Speakerph. Line Output 84 dB Dynamic Range (A-wtd) -75 dB THD+N High Voltage (1.53 VRMS @ VA = 1.8 V, VP = - High Efficiency - Low EMI Pseudo-differential Ground-centered Outputs High HP Power Output at -70/-81 dB THD+N - 2 x 17/8.5 mW into 16/32 @ 1.8 V Pop and Click Suppression Analog Vol. Ctl. (+12 to -50 dB in 1 dB steps; to -76 dB in 2 dB steps) with Zero-cross Trans. Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) with Soft-ramp Transitions Programmable Peak-detect and Limiter 3.7 V) Line Output to Ensure Maximum Output from a Wide Variety of External Amplifiers Pop and Click Suppression Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) with Soft-ramp Transitions Programmable Peak-detect and Limiter Serial Ports Three Independent Serial Ports: Auxiliary, Audio, and Voice 8.00, 11.025, 12.00, 16.00, 22.05, 24.00, Stereo DAC to Line Outputs 97 dB Dynamic Range (A-wtd) -86 dB THD+N Class-H Amplifier Pseudo-differential Ground-centered Outputs 1 VRMS Line Output @ 1.8 V Pop and Click Suppression 32.00, 44.10, and 48.00 kHz Sample Rates All Ports Support Master or Slave Operation with IS Interface Auxiliary and Voice Ports Support Slave Operation with PCM Interface Auxiliary and Audio Ports are StereoInput/Stereo-Output to/from Digital Mixer Voice Port is Mono-Input/Stereo-Output to/from Digital Mixer Integrated Asynch. Sample Rate Converters 2 CS42L73 General Description The CS42L73 is a highly integrated, low-power, audio and telephony CODEC for portable applications such as smartphones and ultra mobile personal computers. The CS42L73 features a flexible clocking architecture, allowing the device to utilize reference clock frequencies of 6, 12, 24, 13, 26, 19.2, or 38.4 MHz, or any standard audio master clock. Up to two reference/master clock sources may be connected; either one can be selected to drive the internal clocks and processing rate of the CS42L73. Thus, multiple master clock sources within a system can be dynamically activated and de-activated to minimize system-level power consumption. Three asynchronous bidirectional serial ports (Auxiliary, Audio, and Voice Serial Ports) support multiple clock domains of various digital audio sources or destinations. Three low-latency, fast-locking, integrated high-performance asynchronous sample rate converters synchronize and convert the audio samples to the internal processing rate of the CS42L73. A stereo line input or two mono (one stereo) microphone (MIC) inputs are routed to a stereo ADC. The MIC inputs may be selectively pre-amplified by +10 or +20 dB. Two independent, low-noise MIC bias voltage supplies are also provided. A programmable gain amplifier (PGA) is applied to the inputs before they reach the ADC. The stereo input path that follows the stereo ADC begins with a multiplexer to selectively choose data from a digital MIC interface. Following the multiplexer, the data is decimated, selectively DC high-pass filtered, channelswapped or mono-to-stereo routed (fanned-out), and volume adjusted or muted. The volume levels can be automatically adjusted via a programmable Automatic Level Control (ALC) and noise gate. A digital mixer is utilized to mix and route the CS42L73's inputs (analog inputs to ADC, digital MIC, or serial ports) to outputs (DAC-fed amplifiers or serial ports). There is independent attenuation on each mixer input for each output. The processing along the output paths from the digital mixer to the two stereo DACs includes volume adjustment and mute control. A peak-detector can be used to automatically adjust the volume levels via a programmable limiter. The first stereo DAC feeds the stereo headphone and line output amplifiers, which are powered from a dedicated positive supply. An integrated charge pump provides a negative supply. This allows a ground-centered analog output with a wide signal swing, and eliminates external DC-blocking capacitors while reducing pops and clicks. Trilevel Class-H amplification is utilized to reduce power consumption under low-signal-level conditions. Analog volume controls are provided on the stereo headphone and line outputs. The second stereo DAC feeds several mono outputs. The left channel of the DAC sources a mono, differentialdrive, speakerphone amplifier for driving the handset speakerphone. The right channel sources a mono, differential-drive, earphone amplifier for driving the handset earphone. The right channel is also routed to a mono, differential-drive, speakerphone line output, which may be connected to an external amplifier to implement a stereo speakerphone configuration when it is used in conjunction with the integrated speakerphone amplifier. The CS42L73 implements robust power management to achieve ultra-low power consumption. High granularity in power-down controls allows individual functional blocks to be powered down when unused. The internal low dropout regulator (LDO) saves power by running the internal digital circuits at half the logic interface supply voltage (VL/2). In a system with an existing high-efficiency supply at VL/2, the internal LDO may be disabled and the digital circuits powered directly by the external VL/2 supply. A high-speed IC control port interface capable of up to 400 kHz operation facilitates register programming. The CS42L73 is available in space-saving 64-ball WLCSP and 65-ball FBGA packages for the commercial (-40 to +85 C) grade. 3 CS42L73 1. TYPICAL CONNECTION DIAGRAM CS42L73 33 nF 100 100 HPOUTB HPOUTA HPOUT_REF VBAT PMU Reset Generator LDO USB +5 V +1.8 V VANA RESET VA 0.1 F 33 nF Headphone Out Left & Right LINEOUTB LINEOUTA LINEO_REF 390 390 2200 pF C0G 2200 pF C0G Optional LPF Line Level Out Left & Right Switching Regulator +1.8 V VCP VDIG 2.2 F 2.2 F 2.2 F +VCP_FILT -VCP_FILT CPGND EAROUT+ EAROUT- Ear Speaker (Receiver) 2.2 F 2.2 F FLYP FLYC FLYN VP SPK_VQ 0.1 F + 4.7 F + 4.7 F VBAT PGND MCLK1 ASP_SCLK ASP_LRCK Applications Processor ASP_SDIN ASP_SDOUT INT SCL SDA LINEINA RI_P RP RP 1 F + 1 F + 100 k 1 F + 100 k SPKOUT+ SPKOUTVBAT SPKLINEO+ SPKLINEO2.2 F 2.2 F + + Speakerphone (Left) Class-D Speakerphone (Right) CS35L0x Line In Left LINEIN_REF VL VD_FILT LINEINB VDIG 0.1 F 1 F Optional Bias Res. Line In Right Baseband Processor MIC1_BIAS MCLK2 VSP_SCLK MIC1 0.1 F 1 F RBIAS Ground Ring Cellular Voice SP VSP_LRCK VSP_SDIN VSP_SDOUT MIC2_BIAS MIC1_REF Handset Microphone + 0.1 F 1 F RBIAS AEC SP MIC2 0.1 F MIC2_SDET MIC2_REF + 0.1 F Headset Microphone XSP_SCLK Bluetooth(R) Transceiver XSP_LRCK XSP_SDIN XSP_SDOUT DMIC_SD DMIC_SCLK L/R DATA VANA Right/Data2 Digital Microphone L/R DATA Left/Data1 Digital Microphone MICB_FILT ANA_VQ FILT+ AGND 2.2 F + 4.7 F 2.2 F DGND 4 2.1 A X A1 Ball A1 A2 M Ball A1 Location Indicator (Seen Through Package) b WLCSP Package Ball A1 Location Indicator 2. PACKAGE DIMENSIONS Y N e d WAFER BACK SIDE e SIDE VIEW BUMP SIDE c Dim MIN MILLIMETERS NOM MAX Notes: 1. 2. 3. 64 Ball WLCSP (3.44 x 3.44 mm Body) Package Drawing A A1 A2 M N b c d e X Y 4. 0.450 0.170 0.280 0.230 3.415 3.415 0.505 0.200 0.305 2.800 2.800 0.260 0.320 0.320 0.400 3.440 3.440 0.560 0.230 0.330 0.290 3.465 3.465 Controlling dimensions are in millimeters. Dimensioning and tolerances per ASME Y 14.5M-1994. Dimension "b" applies to the solder sphere diameter and is measured at the midpoint between the package body and the seating plane. Unless otherwise specified, tolerances are: Linear 0.05 mm, Angular 1. Controlling Dimension is Millimeters. CS42L73 Table 1. WLCSP Package Dimensions 5 6 2.2 A X A1 Ball A1 A2 M Ball A1 Location Indicator FBGA Package Ball A1 Location Indicator b Y N e d TOP SIDE e SIDE VIEW BUMP SIDE c Dim MIN MILLIMETERS NOM MAX 65 Ball FBGA (5 x 5 mm Body) Package Drawing Notes: 1. 2. 3. A A1 A2 M N b c d e X Y 0.74 0.16 0.58 0.27 4.90 4.90 0.87 0.21 0.66 4.00 4.00 0.30 0.50 0.50 0.50 5.00 5.00 1.00 0.26 0.74 0.37 5.10 5.10 4. Controlling dimensions are in millimeters. Dimensioning and tolerances per ASME Y 14.5M-1994. Dimension "b" applies to the solder sphere diameter and is measured at the midpoint between the package body and the seating plane. Unless otherwise specified, tolerances are: Linear 0.05 mm, Angular 1. Controlling Dimension is Millimeters. CS42L73 Table 2. FBGA Package Dimensions CS42L73 3. THERMAL CHARACTERISTICS Parameter (Notes 1 and 2) WLCSP Package Junction to Ambient Thermal Impedance FBGA Package Junction to Ambient Thermal Impedance JA 58 C/Watt JA 43 C/Watt Symbol Min Typ Max Units Notes: 1. Test Printed Circuit Board Assembly (PCBA) constructed in accordance with JEDEC standard JESD51-9. Two signal, two plane (2s2p) PCB utilized. 2. Test conducted with still air in accordance with JEDEC standards JESD51, JESD51-2A, and JESD51-8. 4. ORDERING INFORMATION Product Description Package 64 Ball WLCSP YES 65 Ball FBGA Commercial Pb-Free Grade Temp Range Container Tray -40 to +85 C Order # CS42L73-CWZ CS42L73 Ultra Low Power Mobile Audio and Telephony CODEC Tape & Reel CS42L73-CWZR Tray CS42L73-CRZ Tape & Reel CS42L73-CRZR Contacting Cirrus Logic Support For all product questions and inquiries, contact a Cirrus Logic Sales Representative. To find one nearest you, go to www.cirrus.com. IMPORTANT NOTICE "Advance" product information describes products that are in development and subject to development changes. Cirrus Logic, Inc. and its subsidiaries ("Cirrus") believe that the information contained in this document is accurate and reliable. However, the information is subject to change without notice and is provided "AS IS" without warranty of any kind (express or implied). Customers are advised to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgment, including those pertaining to warranty, indemnification, and limitation of liability. No responsibility is assumed by Cirrus for the use of this information, including use of this information as the basis for manufacture or sale of any items, or for infringement of patents or other rights of third parties. This document is the property of Cirrus and by furnishing this information, Cirrus grants no license, express or implied under any patents, mask work rights, copyrights, trademarks, trade secrets or other intellectual property rights. Cirrus owns the copyrights associated with the information contained herein and gives consent for copies to be made of the information only for use within your organization with respect to Cirrus integrated circuits or other products of Cirrus. This consent does not extend to other copying such as copying for general distribution, advertising or promotional purposes, or for creating any work for resale. CERTAIN APPLICATIONS USING SEMICONDUCTOR PRODUCTS MAY INVOLVE POTENTIAL RISKS OF DEATH, PERSONAL INJURY, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE ("CRITICAL APPLICATIONS"). CIRRUS PRODUCTS ARE NOT DESIGNED, AUTHORIZED OR WARRANTED FOR USE IN PRODUCTS SURGICALLY IMPLANTED INTO THE BODY, AUTOMOTIVE SAFETY OR SECURITY DEVICES, LIFE SUPPORT PRODUCTS OR OTHER CRITICAL APPLICATIONS. INCLUSION OF CIRRUS PRODUCTS IN SUCH APPLICATIONS IS UNDERSTOOD TO BE FULLY AT THE CUSTOMER'S RISK AND CIRRUS DISCLAIMS AND MAKES NO WARRANTY, EXPRESS, STATUTORY OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR PURPOSE, WITH REGARD TO ANY CIRRUS PRODUCT THAT IS USED IN SUCH A MANNER. IF THE CUSTOMER OR CUSTOMER'S CUSTOMER USES OR PERMITS THE USE OF CIRRUS PRODUCTS IN CRITICAL APPLICATIONS, CUSTOMER AGREES, BY SUCH USE, TO FULLY INDEMNIFY CIRRUS, ITS OFFICERS, DIRECTORS, EMPLOYEES, DISTRIBUTORS AND OTHER AGENTS FROM ANY AND ALL LIABILITY, INCLUDING ATTORNEYS' FEES AND COSTS, THAT MAY RESULT FROM OR ARISE IN CONNECTION WITH THESE USES. Cirrus Logic, Cirrus, and the Cirrus Logic logo designs are trademarks of Cirrus Logic, Inc. All other brand and product names in this document may be trademarks or service marks of their respective owners. IC is a trademark of Philips Semiconductor. Bluetooth is a registered trademark of the Bluetooth Special Interest Group (SIG). 7 |
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