CDB53L21 Cirrus Logic Inc, CDB53L21 Datasheet - Page 2

• Manufacturer Part Number: CDB53L21
• Description: BOARD EVAL FOR CS53L21 ADC
• Manufacturer: Cirrus Logic Inc

Specifications of CDB53L21

• Number Of Adc's: 2
• Number Of Bits: 24
• Sampling Rate (per Second): 96k
• Data Interface: Serial
• Inputs Per Adc: 3 Single Ended
• Input Range: ±2.5 V
• Power (typ) @ Conditions: 22.45mW @ 48kSPS, 2.5 V
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Utilized Ic / Part: CS53L21
• Product: Audio Modules
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
• Other names: 598-1550

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APPLICATIONS
Portable Audio Players
Digital Microphones
Digital Voice Recorders
Voice Recognition Systems
Audio/Video Capture Cards
GENERAL DESCRIPTION
The CS53L21 is a highly integrated, 24-bit, 96 kHz, low
power stereo A/D. Based on multi-bit, delta-sigma mod-
ulation, it allows infinite sample rate adjustment
between 4 kHz and 96 kHz. The ADC offers many fea-
tures suitable for low power, portable system
applications.
The ADC input path allows independent channel control
of a number of features. An input multiplexer selects be-
tween line-level or microphone-level inputs for each
channel. The microphone input path includes a select-
able programmable-gain pre-amplifier stage and a low
noise MIC bias voltage supply. A PGA is available for
line or microphone inputs and provides analog gain with
soft ramp and zero cross transitions. The ADC also fea-
tures a digital volume attenuator with soft ramp
transitions. A programmable ALC and Noise Gate mon-
itor the input signals and adjust the volume levels
appropriately.
The Signal Processing Engine (SPE) controls left/right
channel volume mixing, channel swap and channel
mute functions. All volume-level changes may be con-
figured to occur on soft ramp and zero cross transitions.
The CS53L21 is available in a 32-pin QFN package in
both Commercial (-10 to +70° C) and Automotive
grades (-40 to +85° C). The CDB53L21 Customer Dem-
onstration board is also available for device evaluation
and implementation suggestions. Please see
Information” on page 63
In addition to its many features, the CS53L21 operates
from a low-voltage analog and digital core, making this
A/D ideal for portable systems that require extremely
low power consumption in a minimal amount of space.
for complete details.
CS53L21
DS700PP1
“Ordering