SBAA457 Application note | 德州仪器 TI.com.cn

SBAA457 June 2021 PCM6240-Q1 , PCM6260-Q1 , PCM6340-Q1 , PCM6360-Q1

Trademarks
Note
1Introduction
2Controller Mode
1. 2.1 Controller Mode Configuration Options
  1. 2.1.1 Auto Clock Configuration With PLL Enabled
    1. 2.1.1.1 Supported Sample-Rates
    2. 2.1.1.2 Example 12-MHz MCLK
  2. 2.1.2 Auto Clock Detect With PLL Disabled
    1. 2.1.2.1 Supported Sample-Rates
    2. 2.1.2.2 Example
3Edge Sync for I2S and LJF in Controller Mode
1. 3.1 Compatibility With Non-zero Offset
2. 3.2 I2S Compatibility With Zero Offset (I2S only)

2.1.1.1 Supported Sample-Rates

The supported sample-rates and BCLK to FSYNC ratios for multiples and sub-multiples of 48 kHz are shown in Table 2-3.

Table 2-3 Supported FSYNC (Multiples or Sub-multiples of 48 kHz) and BCLK Frequencies

BCLK-TO-FSYNC RATIO	BCLK (MHz)
BCLK-TO-FSYNC RATIO	FSYNC (8 kHz)	FSYNC (16 kHz)	FSYNC (24 kHz)	FSYNC (32 kHz)	FSYNC (48 kHz)	FSYNC (96 kHz)	FSYNC (192 kHz)	FSYNC (384 kHz)	FSYNC (768 kHz)
16	Reserved	0.256	0.384	0.512	0.768	1.536	3.072	6.144	12.288
24	Reserved	0.384	0.576	0.768	1.152	2.304	4.608	9.216	18.432
32	0.256	0.512	0.768	1.024	1.536	3.072	6.144	12.288	24.576
48	0.384	0.768	1.152	1.536	2.304	4.608	9.216	18.432	Reserved
64	0.512	1.024	1.536	2.048	3.072	6.144	12.288	24.576	Reserved
96	0.768	1.536	2.304	3.072	4.608	9.216	18.432	Reserved	Reserved
128	1.024	2.048	3.072	4.096	6.144	12.288	24.576	Reserved	Reserved
192	1.536	3.072	4.608	6.144	9.216	18.432	Reserved	Reserved	Reserved
256	2.048	4.096	6.144	8.192	12.288	24.576	Reserved	Reserved	Reserved
384	3.072	6.144	9.216	12.288	18.432	Reserved	Reserved	Reserved	Reserved
512	4.096	8.192	12.288	16.384	24.576	Reserved	Reserved	Reserved	Reserved
1024	8.192	16.384	24.576	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved
2048	16.384	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved

The supported sample-rates and BCLK to FSYNC ratios for multiples and sub-multiples of 44.1 kHz are shown in Table 2-4.

Table 2-4 Supported FSYNC (Multiples or Sub-multiples of 44.1 kHz) and BCLK Frequencies

BCLK-TO-FSYNC RATIO	BCLK (MHz)
BCLK-TO-FSYNC RATIO	FSYNC (7.35 kHz)	FSYNC (14.7 kHz)	FSYNC (22.05 kHz)	FSYNC (29.4 kHz)	FSYNC (44.1 kHz)	FSYNC (88.2 kHz)	FSYNC (176.4 kHz)	FSYNC (352.8 kHz)	FSYNC (705.6 kHz)
16	Reserved	Reserved	0.3528	0.4704	0.7056	1.4112	2.8224	5.6448	11.2896
24	Reserved	0.3528	0.5292	0.7056	1.0584	2.1168	4.2336	8.4672	16.9344
32	Reserved	0.4704	0.7056	0.9408	1.4112	2.8224	5.6448	11.2896	22.5792
48	0.3528	0.7056	1.0584	1.4112	2.1168	4.2336	8.4672	16.9344	Reserved
64	0.4704	0.9408	1.4112	1.8816	2.8224	5.6448	11.2896	22.5792	Reserved
96	0.7056	1.4112	2.1168	2.8224	4.2336	8.4672	16.9344	Reserved	Reserved
128	0.9408	1.8816	2.8224	3.7632	5.6448	11.2896	22.5792	Reserved	Reserved
192	1.4112	2.8224	4.2336	5.6448	8.4672	16.9344	Reserved	Reserved	Reserved
256	1.8816	3.7632	5.6448	7.5264	11.2896	22.5792	Reserved	Reserved	Reserved
384	2.8224	5.6448	8.4672	11.2896	16.9344	Reserved	Reserved	Reserved	Reserved
512	3.7632	7.5264	11.2896	15.0528	22.5792	Reserved	Reserved	Reserved	Reserved
1024	7.5264	15.0528	22.5792	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved
2048	15.0528	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved	Reserved