W681308
XXXX PRODUCT DESCRIPTION
20.5
Analog Distortion and Noise Parameters
All ADC tests using Auxiliary input mode @ 0dB gain
20.5.1
8kHz sampling
AVDD=3.13V – 3.47V; VSS=0V; TA=-40°C to +85°C; 8kHz sampling
TRANSMIT (ADC)
RECEIVE (DAC)
PARAMETER
SYMBOL
CONDITION
Idle channel
UNIT
MIN
TYP
94
MAX
MIN
TYP
88
MAX
Signal to Noise Ratio
SNR
THD3
THD8
80
--
--
80
--
--
dB
dB
dB
A-weighted
-3dBFS @ 1020 Hz,
32Ohm speaker load
Total Harmonic Distortion
Total Harmonic Distortion
-77
-77
-67
-67
-69
-77
-70
-67
-60
-55
-3dBFS @ 1020 Hz,
8Ohm speaker load
--
--
-6dBFS @ 1020 Hz,
4Ohm speaker load
Total Harmonic Distortion
Frequency Response
Power Supply Rejection
THD4
Frl
--
-79
3.36
88
--
-65
3.36
85
dB
kHz
dB
-3dB Low pass cut-off
VDDUSB; 35mVrms DC
to 3.4 kHz
PSRRA
70
---
70
---
A-weighted
20.5.2
16kHz sampling
AVDD=3.13V – 3.47V; VSS=0V; TA=-40°C to +85°C; 16kHz sampling
TRANSMIT (ADC)
RECEIVE (DAC)
PARAMETER
SYMBOL
CONDITION
UNIT
MIN
TYP
93
MAX
MIN
TYP
86
MAX
Idle channel
A-weighted
Signal to Noise Ratio
SNR
THD3
THD8
THD4
Frl
80
--
--
80
--
--
dB
dB
-3dBFS @ 1020 Hz,
32Ohm speaker load
Total Harmonic Distortion
Total Harmonic Distortion
Total Harmonic Distortion
Frequency Response
-76
-76
-79
6.73
89
-66
-66
-69
-78
-70
-65
6.73
85
-68
-60
-55
-3dBFS @ 1020 Hz,
8Ohm speaker load
--
--
dB
-6dBFS @ 1020 Hz,
4Ohm speaker load
--
--
dB
-3dB Low pass cut-off
kHz
dB
VDDUSB; 35mVrms
DC to 6.8 kHz
A-weighted
Power Supply Rejection
PSRRA
70
---
70
---
57
Rev1.2
NUVOTEM TALEMA [ NUVOTEM TALEMA ]
