Electronic Components Datasheet Search |
|
CS42L55 Datasheet(PDF) 2 Page - Cirrus Logic |
|
CS42L55 Datasheet(HTML) 2 Page - Cirrus Logic |
2 / 73 page 2 DS773F1 CS42L55 SYSTEM FEATURES High Performance 24-bit Converters – Multi-bit Delta Sigma Architecture Integrated High Efficient Power Management Reduces Power Consumption – Step-Down Charge Pump Improves Efficiency – Inverting Charge Pump Accommodates Low System Voltage by Providing Negative Rail for HP/Line Amp – LDO Reg. Provides Low Digital Supply Voltage Digital Power Reduction – Very Low Oversampling Rate for Converters – Bursted Serial Clock Providing 24 Bits per Sample Power Down Management – ADC, DAC, CODEC, PGA, DSP Analog & Digital Routing/Mixes – Line/Headphone Out = Analog In (ADC Bypassed) – Line/Headphone Out = ADC Out – Internal Digital Loopback – Mono Mixes I²C® Control Port I²S Digital Interface Format Flexible Clocking Options – Master or Slave Operation – High-Impedance Digital Output Select (used for easy MUXing between CODEC and other data sources) – 8.000, 11.029, 12.000, 16.000, 22.059, 24.000, 32.000, 44.118 and 48.000 kHz Sample Rates APPLICATIONS HDD & Flash-Based Portable Audio Players MD Players/Recorders PDAs Personal Media Players Portable Game Consoles Digital Voice Recorders Digital Camcorders Digital Cameras Smart Phones GENERAL DESCRIPTION The CS42L55 is a highly integrated, 24-bit, ultra-low power stereo CODEC based on multi-bit delta-sigma modulation. Both the ADC and DAC offer many features suitable for low power portable system applications. The analog input path allows independent channel control of a variety of features. The Programmable Gain Amplifier (PGA) provides analog gain with zero cross transitions. The ADC path includes a digital volume at- tenuator with soft ramp transitions and a programmable ALC and noise gate monitor the input signals and adjust the volume appropriately. An analog passthrough also exists, accommodating a lower noise, lower power ana- log in to analog out path to the headphone and line amplifiers, bypassing the ADC and DAC. The DAC output path includes a fixed-function digital signal processing engine. Tone control provides bass and treble adjustment at four selectable corner frequen- cies. The digital mixer provides independent volume control for both the ADC output and PCM input signal paths, as well as a master volume control. Digital vol- ume controls may be configured to change on soft ramp transitions while the analog controls can be configured to occur on every zero crossing. The DAC path also in- cludes de-emphasis, limiting functions and a beep generator delivering tones selectable across a range of two full octaves. The Class H stereo headphone amplifier combines the efficiency of an integrated step-down and inverting charge pump with the linearity and low EMI of a Class AB amplifier. A step-down/inverting charge pump oper- ates in two modes: +/-VCP mode or +/-(VCP/2) mode. Based on the amplifier’s output signal, internal logic au- tomatically adjusts the output of the charge pump, +VHPFILT and –VHPFILT, to optimize efficiency. With these features, the amplifier delivers a ground-centered output with a large signal swing even at low voltages and eliminates the need for external DC-blocking capacitors. These features make the CS42L55 the ideal solution for portable applications that require extremely low power consumption in a minimal amount of space. The CS42L55 is available in a 36-pin QFN package for the Commercial (-40°C to +85°C) grade. The CDB42L55 Customer Demonstration board is also available for device evaluation and implementation sug- gestions. Please see “Ordering Information” on page 73 for complete details. |
Similar Part No. - CS42L55 |
|
Similar Description - CS42L55 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |