Cirrus Logic AN260 - Manual (Page 2)

AN260
2 AN260REV2
For users of the CS4362, the CS4365 is a simple, yet affordable, upgrade to a richer feature set and lower
out-of-band noise performance.
2. The Design Transition
2.1 Transitioning from the CS4362 to CS4362A
2.1.1 Hardware changes
The CS4362A pinout was primarily based on the CS4362 with only 2 pins changing function.
Other pins have new recommended components but the circuit topologies remain the same and
thus do not require modification to the PCB. The most significant change is that the VD core of
the CS4362A requires 2.5 V for operation, whereas the CS4362 was able to run from 3.3 V to
5 V. The CS4362A will NOT operate off of a VD supply of 3.3 V or 5 V.
Figure 1 and Figure 2 show the CS4362 and CS4362A pinouts respectively. The changes to
the two pinouts are highlighted. Figure 1 highlights the pins which have changed function and
which may require a PCB change. Figure 2 highlights the pins which have new recommended
components.
Table 1. Product Comparison
CS4365 CS4362A CS4362
Dynamic Range dB 114 114 114
THD+N dB -100 -100 -100
Resolution bits 24 24 24
Sample Rate kHz 192 192 192
Power Supply VA 5 5 5
VD 2.5 2.5 3.3 to 5
Volume Control 0.5 dB 1 dB 1 dB
Auto Fs Detect Yes No No
Package 48-LQFP 48-LQFP 48-LQFP