CS42325-CQZ Cirrus Logic Inc, CS42325-CQZ Datasheet - Page 2

• Manufacturer Part Number: CS42325-CQZ
• Description: IC CODEC STEREO AUDIO 48-LQFP
• Manufacturer: Cirrus Logic Inc
• Type: Audio Codecr

Specifications of CS42325-CQZ

• Package / Case: 48-LQFP
• Data Interface: Serial
• Resolution (bits): 24 b
• Number Of Adcs / Dacs: 1 / 2
• Sigma Delta: Yes
• Dynamic Range, Adcs / Dacs (db) Typ: 95 / 100
• Voltage - Supply, Analog: 3.13 V ~ 3.47 V
• Voltage - Supply, Digital: 3.13 V ~ 3.47 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Adc Inputs: 1
• Number Of Dac Outputs: 2
• Conversion Rate: 96 KSPS
• Interface Type: Serial (I2C, SPI)
• Resolution: 24 bit
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Number Of Channels: 1 ADC/2 DAC
• Supply Current: 10 mA to 24 mA
• Thd Plus Noise: - 88 dB ADC / - 90 dB DAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

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System Features
High Performance 24-bit Converters
Direct Interface with 1.8 V to 3.3 V Logic Levels
Supports Asynchronous Serial Port Operation
Internal Digital Loopback
+3.3 V Analog Power Supply
+3.3 V Digital Power Supply
+9 V to +12 V High-Voltage Power Supply
Hardware or Software Mode Configuration
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Multi-bit Delta-Sigma Modulator
Up to 96 kHz Sampling Rates
Two Independent Clock Domains
ADC, DAC1, and DAC2 can be
Independently Assigned to the Two Clock
Domains
Each Serial Port Supports Master or Slave
Operation
Supports I²C
®
and SPI
™
Software Interface
General Description
The CS42325 is a highly integrated stereo audio
CODEC. The CS42325 performs stereo analog-to-
digital (A/D) and up to four channels of digital-to-analog
(D/A) conversion of up to 24-bit serial values at sample
rates up to 96 kHz.
A 5:1 stereo input multiplexer is included for selecting
between line-level inputs. The output of the input multi-
plexer is followed by an advanced 3rd-order, multi-bit
delta-sigma modulator and digital filtering/decimation.
Sampled data is transmitted by the serial audio inter-
face at rates from 4 kHz to 96 kHz, in either Slave or
Master Mode.
The D/A converter is based on a 5th-order multi-bit del-
ta-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.
An integrated 7:1 stereo output multiplexer on each of
the three stereo 2 Vrms line-level outputs is used to se-
lect any of the 5 stereo analog inputs, for analog bypass
support, or the outputs of the 2 internal DACs. Each
2 Vrms output can be muted with the selectable analog
mute function. Analog output 3 has a built in headphone
driver and can be used either as a line output or head-
phone output.
Standard 50/15
44.1 kHz sample rate for compatibility with digital audio
programs mastered using the 50/15
technique.
Integrated digital level translators allow easy interfacing
between the CS42325 and other devices operating over
a wide range of logic levels.
The CS42325 is available in a 48-pin LQFP package in
Commercial (-40°C to +85°C) and Automotive (-40°C to
+105°C) grades. The CDB42325 Customer Demonstra-
tion board is also available for device evaluation and
implementation suggestions. Please refer to
information” on page 71
μ
s de-emphasis is available for a
for complete details.
μ
s pre-emphasis
CS42325
DS838A2
“Ordering