CS42L73 Ultra Low Power Mobile Audio and Telephony CODEC Product Overview System Features For the full datasheet, visit Native (no PLL required) Support for 6/12/24 www.cirrus.com/codec-datasheets/CS42L73 MHz, 13/26 MHz, and 19.2/38.4 MHz Master Stereo ADC Clock Rates in Add. to Typ. Audio Clock Rates Dual Analog or Digital MIC Support Integrated High-efficiency Power Management Reduces Power Consumption Dual MIC Bias Generators Internal LDO Regulator to Reduce Internal Four DACs Coupled to Five Outputs Digital Operating Voltage to VL/2 Ground-Centered Stereo Headphone Amp. Step-down Charge Pump Provides Low Ground-Centered Stereo Line Output Headphone/Line Out Supply Voltage Mono Ear Speaker Amplifier Inverting Charge Pump Accommodates Low Mono 1 W Speakerphone Amplifier System Voltage by Providing Negative Rail Mono Speakerphone Line Output for Stereo for HP and Line Amp Speakerphone Expansion Flexible Speakerphone Amplifier Powering Three Serial Ports with Asynchronous Sample 3.00 V to 5.25 V Range Rate Converters Independent Cycling Digital Audio Mixing and Routing Power Down Management Individual Controls for ADCs, Dig. MIC Ultra Low Power Consumption Interface, MIC Bias Generators, Serial Ports, 3.5 mW Quiescent Headphone Playback and Output Amplifiers & Associated DACs Applications Programmable Thermal Overload Notification Smart Phones, UMPCs, and MIDs High-speed IC Control Port (400 kHz) (Features continued on page 2) VL VD FILT VA VCP +VCP FILT -VCP FILT CS42L73 LDO +VCP FILT VA Step-Down +VCP FILT VD FILT - -VCP FILT Inverting Headphone Outputs + MCLK1 -VCP FILT MCLK Digital Processing Pseudo Diff. Input MCLK +VCP FILT MCLK2 Stereo - Digital Mixer Volume, Mute, Limiter Multi-bit Line Outputs DAC + -VCP FILT Control Port Control Port Pseudo Diff. Input VA MIC/Line Input Path MCLK + Ear Speaker Output SDIN B - ASRC Stereo Volume, Mute, Limiter Multi-bit VP Auxiliary Auxiliary Serial Port DAC VP Auxiliary Serial Port Serial Port ASRC A Speakerphone Output + SDOUT - (Left) + VP SDIN Speakerphone Line Audio Serial Port B + ASRC Audio - Output (Right) Audio Serial Port Serial Port ASRC SDOUT Line Input (Left) Voice Serial Port SDIN Decimator, Pseudo Diff. Input HPF, MCLK ASRC Noise Voice Gate, Line Input (Right) Voice Serial Port ALC, Serial Port Stereo Volume, ASRC + Mute, Multi-bit +10 or - SDOUT Swap/Mono ADC +20 dB -6 to +12 dB, + MIC 1 0.5 dB steps - Pseudo Diff. Input VP Digital MIC Interface Digital MIC Interface + MIC 2 - Pseudo Diff. Input +10 or MIC Bias MIC Bias Short Detect +20 dB MIC 1 Bias MIC 2 Bias MIC2 SDET This document contains information for a new product. Advance Product Information Cirrus Logic reserves the right to modify this product without notice. Copyright Cirrus Logic, Inc. 2010 MAY 10 (All Rights Reserved) CS42L73 Analog Vol. Ctl. (+12 to -50 dB in 1 dB steps to Stereo Analog to Digital Features -76 dB in 2 dB steps) with Zero-cross Trans. 91 dB Dynamic Range (A-wtd) Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) -85 dB THD+N with Soft-ramp Transitions Independent ADC Channel Control Programmable Peak-detect and Limiter 2:1 Stereo Analog Input MUX Mono DAC to Ear Speaker Amplifier Stereo Line Input Shared Pseudo-differential Reference Input High Power Output at -70 dB (0.032%) THD+N 45 mW into 16 1.8 V Dual Analog MIC Inputs Pop and Click Suppression Pseudo-diff. or Single-ended Two, Independent, Programmable, Low- Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) noise, MIC Bias Outputs with Soft-ramp Transitions MIC Short Detect to Support Headset Button Programmable Peak-detect and Limiter Analog Programmable Gain Amplifier (PGA) (+12 to -6 dB in 0.5 dB steps) Mono DAC to Speakerphone Amplifier +10 dB or +20 dB Analog MIC Boost in Addition High Output Power at 1% THD+N to PGA Gain Settings 1.18/0.84/0.66 W into 8 5.0/4.2/3.7 V Programmable Automatic Level Control (ALC) Direct Battery-powered Operation Noise Gate for Noise Suppression Pop and Click Suppression Progr. Threshold & Attack/Release Rates Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) Dual Digital Microphone Interface with Soft-ramp Transitions Programable Clock Rate Programmable Peak-detect and Limiter Integer Divide by 2 or 4 of Internal MCLK Mono DAC to Speakerph. Line Output Stereo DAC to Headphone Amplifier 84 dB Dynamic Range (A-wtd) 94 dB Dynamic Range (A-wtd) -75 dB THD+N -81 dB THD+N into 32 High Voltage (1.53 V VA = 1.8 V, VP = RMS 3.7 V) Line Output to Ensure Maximum Output Integrated Step-down/Inverting Charge Pump from a Wide Variety of External Amplifiers Class H Amplifier - Automatic Supply Adj. Pop and Click Suppression High Efficiency Low EMI Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) Pseudo-differential Ground-centered Outputs with Soft-ramp Transitions High HP Power Output at -70/-81 dB THD+N Programmable Peak-detect and Limiter 2 x 17/8.5 mW into 16/32 1.8 V Serial Ports Pop and Click Suppression Three Independent Serial Ports: Auxiliary, Analog Vol. Ctl. (+12 to -50 dB in 1 dB steps to Audio, and Voice -76 dB in 2 dB steps) with Zero-cross Trans. 8.00, 11.025, 12.00, 16.00, 22.05, 24.00, Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps) 32.00, 44.10, and 48.00 kHz Sample Rates with Soft-ramp Transitions All Ports Support Master or Slave Operation Programmable Peak-detect and Limiter with IS Interface Stereo DAC to Line Outputs Auxiliary and Voice Ports Support Slave Operation with PCM Interface 97 dB Dynamic Range (A-wtd) Auxiliary and Audio Ports are Stereo- -86 dB THD+N Input/Stereo-Output to/from Digital Mixer Class-H Amplifier Voice Port is Mono-Input/Stereo-Output to/from Pseudo-differential Ground-centered Outputs Digital Mixer 1 V Line Output 1.8 V RMS Integrated Asynch. Sample Rate Converters Pop and Click Suppression 2