Intel 8253 - Signal to Noise Ratio (SNR)

Signal to Noise Ratio (SNR)
• V
in
=A Sin(ωT) ; A = V
FSR
/ 2
• Signal Power:
V
S
2
= (V
FSR
/ 2.8)
2
= V
FSR
2
/8
• Noise Power:
V
N
2
= LSB
2
/12
• SNR = (1.5)2
2N
1.8 + 6.02 N [dB]
• Example: SNR(10bit) = 62dB