CAT6613 데이터 시트보기 (PDF) - Unspecified
부품명
상세내역
일치하는 목록
CAT6613 Datasheet PDF : 37 Pages
| |||
CAT6613 Datasheet
Multiple of audio
sample frequency
32kHz
44.1kHz
Audio sample frequency
48kHz 88.2kHz 96kHz
176.4kHz 192kHz
128
4.096
5.645
6.144
11.290
12.288
22.579
24.576
256
8.192
11.290
12.288
22.579
24.576
45.158
49.152
512
16.384
22.579
24.576
45.158
49.152
90.317
98.304
1024
32.768
45.158
49.152
90.316
98.304 (180.634) (196.608)
Table 2. Output MCLK frequencies (MHz) supported by the CAT6613
Notes:
1. The MCLK frequencies in parenthesis are MCLK frequencies over 100MHz. These frequencies are implemented
in the CAT6613 and could be output through register setting as well. However, the I/O circuit of the MCLK pin
does not guarantee to be operating at such a high frequency under normal operation conditions. In addition, few
audio frontend ICs outputs such high MCLK frequencies. Therefore, using the MCLKs in parenthesis is strongly
discouraged.
One-Bit Audio (DSD/SACD)
Direct stream digital (DSD) audio is an one-bit audio format which is prescribed by Super Audio CD
(SACD) to provide superiore audio hearing experiences. The CAT6613 provides dedicated input pins
for DSD audio. A total of 8 data inputs are provided for right channels and left channels.
High-Bit-Rate Audio (HBR)
High-Bit-Rate Audio is also new to the HDMI standard. It is called upon by high-end audio system
such as DTS-HD and Dolby TrueHD. No specific interface is defined by the HBR standard. The
CAT6613 supports HBR audio in two ways. One is to employ the four I2S inputs simultaneously, where
the original streaming DSD audio is broken into four parallel data streams before entering the
CAT6613. The other is to use the S/PDIF input port. Since the data rate here is as high as
98.304Mbps, a coherent MCLK is required in this application.
Audio Downsampling
Audio data can be down sampled in cases where the sinks only support audio with lower sampling
rates. The CAT6613 offers audio down-sampling of both a factor of two and a factor of four. Refer to
Table 3 for supported down-samplings.
Down-sampling factor of 2
Down-sampling factor of 4
192kHz → 96kHz
96kHz → 48kHz
192kHz → 48kHz
176.4kHz → 88.2kHz
88.2kHz → 44.1kHz
176.4kHz → 44.1kHz
Table 3. Audio down-samplings supported by the CAT6613
The CAT logo is a registered trademark of Chip Advanced Technology
2008 Chip Advanced Technology Inc. – All Right Reserved.
Mar-2010 Rev:1.0 11/37
Share Link: 