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CS4265 Arkusz danych(PDF) 2 Page - Cirrus Logic

Numer części CS4265
Szczegółowy opis  105 dB, 24-Bit, 192 kHz Stereo Audio CODEC
Download  53 Pages
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Producent  CIRRUS [Cirrus Logic]
Strona internetowa  http://www.cirrus.com
Logo CIRRUS - Cirrus Logic

CS4265 Arkusz danych(HTML) 2 Page - Cirrus Logic

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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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