CS5330ABS

The CS5330ABS is one member of the CS5330A series.The CS5330A is a complete stereo analog-to-digital  converter  which performs anti-alias  filtering,sampling  and  analog-to-digital conversion  generating 18-bit values for both left and right inputs in serial form.The output sample rate can be infinitely adjusted between 2 and 50 kHz.The CS5330A operates from a single +5V supply and requires only 150 mW for normal operation, making it ideal for battery-powered applications.

Features of the CS5330ABS are:(1)single +5 V power supply; (2)18-bit resolution; (3)94 dB dynamic range ; (4)linear phase digital anti-alias filtering:0.05dB passband ripple,80dB stopband rejection; (5)low power dissipation: 150 mW,power-down mode for portable applications; (6)complete cmos stereo A/D system:delta-sigma A/D converters,digital anti-alias filtering,S/H circuitry and voltage reference; (7)adjustable system sampling rates including 32kHz, 44.1 kHz & 48kHz.

The absolute maximum ratings of the CS5330ABS can be summarized as:(1)DC power supply:-0.3 to 6.0V;(2)storage temperature:-65 to 150;(3)ambient temperature:-55 to 125;(4)analog input voltage:-0.7 to (VA+)+0.7V;(5)input current, any pin except supplies:±10mA;(6)digital input voltage:-0.7 to (VA+)+0.7V.The CS5330A is 18-bit, 2-channel Analog-to-Digital Converter designed for digital audio applications. Each device uses two one-bit delta-sigma modulators which simultaneously sample the analog input signals at 128 times the output sample rate (Fs). The resulting serial bit streams are digitally filtered, yielding pairs of  18-bit  values. This technique yields nearly ideal conversion performance independent of input frequency and amplitude. The converters do not require  difficult-to-design or expensive anti-alias filters and do not require external sample-and-hold amplifiers or a voltage reference.The use of capacitors which have a large voltage coefficient must be avoided since these will degrade signal linearity. It is also important that  the self-resonant frequency of the capacitor be well above the modulator sampling frequency. General  purpose ceramics and  film capacitors do not meet these requirements. However, NPO and COG capacitors are acceptable. If active circuitry precedes the ADC, it is recommended that  the above RC  filter  is  placed between the active circuitry and the AINR and AINL pins. The above example frequencies scale linearly with Fs.