EURASIP Journal on Advances in Signal Processing

Table 3 SNR of reconstructed signal for asynchronous and synchronous sigma-delta modulator for different iteration numbers

From: Asynchronous analog-to-digital converter based on level-crossing sampling scheme

Iteration number	Sigma-delta level crossing		Sigma-delta
	OSR = 3.40		OSR = 16	OSR = 32	OSR = 64
	N = 3		N = 3	N = 3	N = 3
	$\frac{1}{T_{C}} = 4, 096 kHz$	$\frac{1}{T_{C}} = 8, 192 kHz$	T = 1.14 s	T = 1.23 s	T = 1.39 s
	T = 6.65s	T = 7.11s
5	46.47	51.10	37.21	42.18	50.73
10	55.71	63.29	43.60	51.03	57.59
15	57.28	64.09	44.34	51.08	58.61
20	57.51	64.26	45.05	51.17	58.83
30	57.69	64.78	45.18	51.52	58.88

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