CS42L73 Datasheet, PDF(2/7 Page) Cirrus Logic – Ultra Low Power Mobile Audio and Telephony CODEC

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CS42L73 Datasheet, PDF (2/7 Pages) Cirrus Logic – Ultra Low Power Mobile Audio and Telephony CODEC

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Stereo Analog to Digital Features

ï´ 91 dB Dynamic Range (A-wtd)

ï´ -85 dB THD+N

ï´ Independent ADC Channel Control

ï´ 2:1 Stereo Analog Input MUX

ï´ Stereo Line Input

â Shared Pseudo-differential Reference Input

ï´ Dual Analog MIC Inputs

â Pseudo-diff. or Single-ended

â Two, Independent, Programmable, Low-

noise, MIC Bias Outputs

â MIC Short Detect to Support Headset Button

ï´ Analog Programmable Gain Amplifier (PGA)

(+12 to -6 dB in 0.5 dB steps)

ï´ +10 dB or +20 dB Analog MIC Boost in Addition

to PGA Gain Settings

ï´ Programmable Automatic Level Control (ALC)

â Noise Gate for Noise Suppression

â Progr. Threshold & Attack/Release Rates

Dual Digital Microphone Interface

ï´ Programable Clock Rate

â Integer Divide by 2 or 4 of Internal MCLK

Stereo DAC to Headphone Amplifier

ï´ 94 dB Dynamic Range (A-wtd)

ï´ -81 dB THD+N into 32 ï

ï´ Integrated Step-down/Inverting Charge Pump

ï´ Class H Amplifier - Automatic Supply Adj.

â High Efficiency

â Low EMI

ï´ Pseudo-differential Ground-centered Outputs

ï´ High HP Power Output at -70/-81 dB THD+N

â 2 x 17/8.5 mW into 16/32 ïï @ 1.8 V

ï´ Pop and Click Suppression

ï´ Analog Vol. Ctl. (+12 to -50 dB in 1 dB steps; to

-76 dB in 2 dB steps) with Zero-cross Trans.

ï´ Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps)

with Soft-ramp Transitions

ï´ Programmable Peak-detect and Limiter

Stereo DAC to Line Outputs

ï´ 97 dB Dynamic Range (A-wtd)

ï´ -86 dB THD+N

ï´ Class-H Amplifier

ï´ Pseudo-differential Ground-centered Outputs

ï´ 1 VRMS Line Output @ 1.8 V

ï´ Pop and Click Suppression

CS42L73

ï´ Analog Vol. Ctl. (+12 to -50 dB in 1 dB steps; to

-76 dB in 2 dB steps) with Zero-cross Trans.

ï´ Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps)

with Soft-ramp Transitions

ï´ Programmable Peak-detect and Limiter

Mono DAC to Ear Speaker Amplifier

ï´ High Power Output at -70 dB (0.032%) THD+N

â 45 mW into 16 ï @ 1.8 V

ï´ Pop and Click Suppression

ï´ Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps)

with Soft-ramp Transitions

ï´ Programmable Peak-detect and Limiter

Mono DAC to Speakerphone Amplifier

ï´ High Output Power at ï£ï 1% THD+N

â 1.18/0.84/0.66 W into 8 ï @ 5.0/4.2/3.7 V

ï´ Direct Battery-powered Operation

ï´ Pop and Click Suppression

ï´ Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps)

with Soft-ramp Transitions

ï´ Programmable Peak-detect and Limiter

Mono DAC to Speakerph. Line Output

ï´ 84 dB Dynamic Range (A-wtd)

ï´ -75 dB THD+N

ï´ High Voltage (1.53 VRMS @ VA = 1.8 V, VP =

3.7 V) Line Output to Ensure Maximum Output

from a Wide Variety of External Amplifiers

ï´ Pop and Click Suppression

ï´ Digital Vol. Ctl. (+12 to -102 dB in 0.5 dB steps)

with Soft-ramp Transitions

ï´ Programmable Peak-detect and Limiter

Serial Ports

ï´ Three Independent Serial Ports: Auxiliary,

Audio, and Voice

ï´ 8.00, 11.025, 12.00, 16.00, 22.05, 24.00,

32.00, 44.10, and 48.00 kHz Sample Rates

ï´ All Ports Support Master or Slave Operation

with IÂ²S Interface

ï´ Auxiliary and Voice Ports Support Slave

Operation with PCM Interface

ï´ Auxiliary and Audio Ports are Stereo-

Input/Stereo-Output to/from Digital Mixer

ï´ Voice Port is Mono-Input/Stereo-Output to/from

Digital Mixer

ï´ Integrated Asynch. Sample Rate Converters

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