SBAA495 Application note

SBAA495A May 2021 – April 2022 PCM3120-Q1 , PCM5120-Q1 , PCM6120-Q1 , TLV320ADC3120 , TLV320ADC5120 , TLV320ADC6120

2.1.2.1 Supported Sample-Rates

Table 2-6 shows the supported sample-rates with the PLL disabled. As shown in Table 2-6, higher MCLK ratios allow the use of greater number or greater computation of digital processing blocks due to the greater availability of clocks in the system.

Table 2-6 Supported Sample Rates for Auto Clock Configuration With PLL Disabled

SAMPLING FREQUENCY (kHz)	MCLK FREQUENCY(MHz)	MCLK RATIO	ADC CHANNELS	DRE	DECIMATION FILTERS	BCLK RATIO	WORD LENGTH
8	12.288	1536	1	Disabled	Linear Phase	32	32
					Low Latency
					Ultra-Low Latency
			2		Linear Phase	48	24
					Low Latency
					Ultra-Low Latency
16	12.288	768	1	Disabled	Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
					Low Latency
					Ultra-Low Latency
16	24.576	1536	1	Disabled	Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
16	36.864	2304	1	Disabled	Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
24	12.288	512	1	Disabled	Linear Phase	32	32
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	64	32
			2	Disabled	Ultra-Low Latency	64	32
	24.576	1024	1	Disabled	Linear Phase	32	32
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	64
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
24	36.864	1536	1	Disabled	Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
32	12.288	384	1	Disabled	Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
			2	Disabled	Ultra-Low Latency	48
	24.576	768	1	Disabled	Linear Phase	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
48	12.288	256	1	Disabled	Linear Phase	32	32
					Low Latency
					Ultra-Low Latency
	24.576	512			Linear Phase	32	32
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	64
					Low Latency
					Ultra-Low Latency
48	36.864	768	1	Disabled	Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
96	24.576	256	1	Disabled	Linear Phase	32	32
					Low Latency
					Ultra-Low Latency
	36.864	384			Linear Phase	24	24
				Enabled	Linear Phase
				Disabled	Low Latency
				Enabled	Low Latency
				Disabled	Ultra-Low Latency
				Enabled	Ultra-Low Latency
			2	Disabled	Linear Phase	48
					Low Latency
					Ultra-Low Latency