CS53L21-CNZ Cirrus Logic Inc, CS53L21-CNZ Datasheet - Page 20

• Manufacturer Part Number: CS53L21-CNZ
• Description: IC ADC STEREO 24BIT 98DB 32QFN
• Manufacturer: Cirrus Logic Inc

Specifications of CS53L21-CNZ

• Package / Case: 32-QFN
• Number Of Converters: 2
• Number Of Bits: 24
• Sampling Rate (per Second): 100k
• Data Interface: Serial
• Power Dissipation (max): 30mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -10°C ~ 70°C
• Mounting Type: Surface Mount
• Conversion Rate: 96 KSPS
• Resolution: 24 bit
• Number Of Adc Inputs: 6
• Operating Supply Voltage: 1.8 V or 2.5 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: - 10 C
• Mounting Style: SMD/SMT
• Power Consumption: 60 mW
• Supply Voltage (max): 2.63 V
• Supply Voltage (min): 1.65 V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 598-1550 - BOARD EVAL FOR CS53L21 ADC
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 598-1191

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4. APPLICATIONS
4.1
4.1.1
4.1.2
4.1.3
4.1.4
4.1.5
Overview
Architecture
The CS53L21 is a highly integrated, low power, 24-bit audio A/D. The ADC operates at 64Fs, where Fs
is equal to the system sample rate. The different clock rates maximize power savings while maintaining
high performance. The A/D operates in one of four sample rate speed modes: Quarter, Half, Single and
Double. It accepts and is capable of generating serial port clocks (SCLK, LRCK) derived from an input
Master Clock (MCLK).
Line & MIC Inputs
The analog input portion of the A/D allows selection from and configuration of multiple combinations of
stereo and microphone (MIC) sources. Six line inputs with configuration for two MIC inputs (or one MIC
input with common mode rejection), two MIC bias outputs and independent channel control (including a
high-pass filter disable function) are available. A Programmable Gain Amplifier (PGA), MIC boost, and Au-
tomatic Level Control (ALC), with noise gate settings, provide analog gain and adjustment. Digital volume
controls, including gain, boost, attenuation and inversion are also available.
Signal Processing Engine
The ADC data has independent volume controls and mixing functions such as mono mixes and left/right
channel swaps.
Device Control (Hardware or Software Mode)
In Software Mode, all functions and features may be controlled via a two-wire I²C or three-wire SPI control
port interface. In Hardware Mode, a limited feature set may be controlled via stand-alone control pins.
Power Management
Two Software Mode control registers provide independent power-down control of the ADC, PGA, MIC pre-
amp and MIC bias, allowing operation in select applications with minimal power consumption.
CS53L21
DS700PP1