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CS4265-CNZ 데이터시트(PDF) 2 Page - Cirrus Logic |
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CS4265-CNZ 데이터시트(HTML) 2 Page - Cirrus Logic |
2 / 53 page CS4265 2 DS657A2 System Features Synchronous IEC60958-3 Transmitter – Up to 192 kHz Sampling Rates –75 Ω Drive Capability Serial Audio Data Input Multiplexer Internal Digital Loopback Supports Master or Slave Operation Mute Output Control Power Down Mode – Available for A/D, D/A, CODEC, Mic Preamplifier +3.3 V to +5 V Analog Power Supply +3.3 V to +5 V digital Power Supply Direct Interface with 1.8 V to 5 V Logic Levels Supports I²C Control Port Interface General Description The CS4265 is a highly integrated stereo audio CO- DEC. The CS4265 performs stereo analog-to-digital (A/D) and digital-to-analog (D/A) conversion of up to 24-bit serial values at sample rates up to 192 kHz. A 2:1 stereo input multiplexer is included for selecting between line level or microphone level inputs. The mi- crophone input path includes a +32 dB gain stage and a low noise bias voltage supply. The PGA is available for line or microphone inputs and provides gain or attenua- tion of ±12 dB in 0.5 dB steps. The output of the PGA is followed by an advanced 5th- order, multi-bit delta sigma modulator and digital filter- ing/decimation. Sampled data is transmitted by the serial audio interface at rates from 4 kHz to 192 kHz in either slave or master mode. The D/A converter is based on a 4th-order multi-bit delta sigma modulator with an ultra-linear low pass filter and offers a volume control that operates with a 0.5 dB step size. It incorporates selectable soft ramp and zero crossing transition functions to eliminate clicks and pops. Standard 50/15 µs de-emphasis is available for a 44.1 kHz sample rate for compatibility with digital audio programs mastered using the 50/15 µs pre-emphasis technique. Integrated level translators allow easy interfacing be- tween the CS4265 and other devices operating over a wide range of logic levels. ORDERING INFORMATION CS4265-CNZ, Lead Free -10° to 70° C 32-pin QFN CDB4265 Evaluation Board |
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