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CE2752 Dataheets PDF



Part Number CE2752
Manufacturers CEI Microelectronics
Logo CEI Microelectronics
Description mixed signal CMOS monolithic audio digital to analog converter
Datasheet CE2752 DatasheetCE2752 Datasheet (PDF)

Microelectronics DESCRIPTION The CE2752 is a mixed signal CMOS monolithic audio digital to analog converter. It contains dual multi-bit sigma delta DAC. The system consists of 128-time interpolation filters, 3th order multi-bit Σ∆ modulators, switch capacitors and analog reconstruction filters. The multi-bit Σ∆ converter offers high tolerance to clock jitter and linearity. The CE2752 support data conversion from 32K to 192KHz. This chip operates at 3.3 volt to reduce the power consumption and th.

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Microelectronics DESCRIPTION The CE2752 is a mixed signal CMOS monolithic audio digital to analog converter. It contains dual multi-bit sigma delta DAC. The system consists of 128-time interpolation filters, 3th order multi-bit Σ∆ modulators, switch capacitors and analog reconstruction filters. The multi-bit Σ∆ converter offers high tolerance to clock jitter and linearity. The CE2752 support data conversion from 32K to 192KHz. This chip operates at 3.3 volt to reduce the power consumption and the noise caused by the digital circuit switching. The CE2752 is ideal for DVD player, AV receiver and set-top box application. The CE2752 support 24, 20, 18 and 16-bit input data. It also support sampling frequency up to 192K. CE2752 Stereo Audio DAC, 24-bit, 192kHz FEATURES • Stereo Audio DAC. - 100 dB SNR (A Weighted). - - 88dB THD + N Ratio (A Weighted). - 32K - 192 KHz. Sampling Rates. - I2S and Left Justified Digital Input Formats. - On -chip Reconstruction Filters. • • 3.3 Power Supply. Applications • Digital Surround Sound For Home Theatre. • DVD Player. • Car Audio. • Portable CD. Block Diagram XCK www.DataSheet4U.com Clock Det. CE2752 DIN1 80 LRCK BCK 77 78 DIGITAL AUDIO INPUT INTERPOLATION FILTER Σ∆ Mod. Σ∆ Mod. D/A AL D/A AR Sampl Rate Det. Control Logic 15 FMT DEM VCM CEI Microelectronics Co. Ltd. 1-10 May 7, 2004 CE2752 DAC Performance Item 1 2 3 4 5 6 7 8 PERFORMANCE SPECIFICATIONS Audio Output Level (Vdd= 3.3 volt) Audio Bandwidth 20Hz - 20 KHz SNR (A-weight) THD +Noise (0dB, A-weight) Dynamic Range (A-weight) Channel Separation Nonlinear Distortion Channel Gain Error Spec. 0.71 Vrms +/- 0.04 dB >100dB <88 dB 94 dB < -90 dB < 0.25 dB < 0.1 dB www.DataSheet4U.com 2-10 May 7, 2004 CE2752 PIN ASSIGNMENT LRCK DIN BCK TST VCM AR GND 1 2 14 13 XCK FMT DEM N/C N/C AL VDD CE2752 3 4 5 6 7 12 11 10 9 8 PIN DESCRIPTION Pin Name LRCk Pin # 1 Type I Description Left/Right Channel Clock pin. For Left justified mode, a high in SF indicates Left Channel Data, a low in SF indicates Right Channel Data. For I2S mode, a low in SF indicates Left Channel Data, a high in SF indicates Right Channel Data. Serial Audio Data Input. Audio Serial Data Clock Input. Test pin. This pin should be connected to ground. Common voltage De-coupling Pin Should be Connected to a 22 uF capacitor in parallel with a 0.1 uF. Analog right channel output ground 3.3 volt power supply. Analog left channel output Not used. can connected to ground. ‘low’ in normal operation, ‘high’ to enable de-emphasis filter. ‘low’ if the input is left justified format. ‘high’ if the input is I2S format. Master clock input. DIN BCK TST VCM www.DataSheet4U.com 2 3 4 5 6 7 8 9 10,11 12 13 14 I I I I/O O GND +3.3V O N/C I I I AR GND DVDD AL N/C DEM FMT XCK 3-10 May 7, 2004 CE2752 INTRODUCTION The CE2752 is designed to supports DVD audio with sampling rate support from 32K up to 192K. It receives 24-16 bit digital sampled audio data either in left justified or I.


BD726 CE2752 LMDKVG02M


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