CRD-5381 Cirrus Logic Inc, CRD-5381 Datasheet - Page 6

• Manufacturer Part Number: CRD-5381
• Description: Audio Modules & Development Tools Ref Bd high perfm ADC & SRC
• Manufacturer: Cirrus Logic Inc

Specifications of CRD-5381

• Description/function: Audio A/D
• Operating Supply Voltage: 3.3 V
• Product: Audio Modules
• For Use With/related Products: CS5381, CS8421
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6
1.2.5
1.2.6
The system latency, or group delay, is the sum of the CS5381 group delay and the CS8421 group delay.
The latency of the CS5381 is 5 samples (5/Fs), and the latency of the CS8421 depends on input and output
sample rates, and can be found in the CS8421 data sheet [3].
typical output sample rates with a fixed input sampling rate of 195.3125 kHz.
.
This phase delay is equal across multiple parts. Therefore, when multiple parts operate at the same Fsi and
Fso and use a common XTI/XTO clock, their output data is phase matched.
Latency or Group Delay
Phase Matching Between Multiple Sections
48 kHz
96 kHz
192 kHz
Output Sample Rate
Table 1. System Latency
Group Delay
1.48 ms
.895 ms
.605 ms
Table 1
shows the combined group delay for
CRD5381
DS563RD1