adsp-21msp58 Analog Devices, Inc., adsp-21msp58 Datasheet - Page 23

• Manufacturer Part Number: adsp-21msp58
• Description: Dsp Microcomputers
• Manufacturer: Analog Devices, Inc.

REV. 0
NOISE & DISTORTION
Parameter
ADC Intermodulation Distortion
DAC Intermodulation Distortion
ADC Idle Channel Noise
DAC Idle Channel Noise
ADC Crosstalk
DAC Crosstalk
ADC Power Supply Rejection
DAC Power Supply Rejection
ADC Group Delay
DAC Group Delay
ADC SNR and THD
DAC SNR and THD
NOTE
1
Guaranteed but not tested.
100
1
1
80
60
40
20
0
–60
Frequency
(Hz)
0+
75
150
300
1000
2000
3000
3400
3700
3850
4000
NOTES
All specifications relative to absolute gain @ 1.0 kHz.
ADC and DAC high-pass filters inserted.
ADC specifications do not include RC filter attenuation and assumes an ac coupled input (see “Analog Test Conditions”
for RC filter details).
1
1
ADC SNR + THD
–50
–40
1
1
–30
V
IN
SLOPE =
– dBm0
ADC
Max
(dB)
–60.00
–25.00
+0.266
+0.272
+0.000
+0.050
–0.200
–0.300
–0.375
–25.00
–60.00
–20
Min
65
72
65
72
20dBm0
PEAK @
20dB
65dB
–10
Figure 14. SNR + THD vs. V
FREQUENCY RESPONSE
Max
–60
–70
–65
–65
–55
–55
1
1
0
3.17
ADC
Min
(dB)
N/A
N/A
–0.134
–0.128
–0.350
–0.600
–0.700
–0.775
N/A
N/A
+0.000
10
–23–
Unit
dB
dB
dBm0
dBm0
dB
dB
dB
dB
ms
ms
dB
dB
100
80
60
40
20
0
–60
DAC SNR + THD
–50
IN
DAC
Max
(dB)
–60.00
–25.00
+0.015
+0.030
+0.000
+0.050
–0.050
–0.090
–0.120
–25.00
–60.00
Test Condition
m, n = 1 and 2; f
m, n = 1 and 2; f
ADC input signal level: 1.0 kHz, 0 dBm0
DAC input at idle.
ADC input signal level: analog ground
DAC output signal level: 1.0 kHz, 0 dBm0
Input signal level at V
1.0 kHz, 100 mV p-p sine wave
Input signal level at V
1.0 kHz, 100 mV p-p sine wave
300 Hz–3000 Hz
300 Hz–3000 Hz
1.0 kHz, 0 dBm0
1.0 kHz, 0 dBm0
–40
–30
V
IN
SLOPE =
– dBm0
ADSP-21msp58/59
–20
20dBm0
PEAK @
DAC
Min
(dB)
N/A
N/A
–0.185
–0.170
+0.000
–0.200
–0.300
–0.340
–0.370
N/A
N/A
a
a
20dB
= 984; f
= 984; f
72dB
–10
CC
CC
and V
and V
b
b
0
= 1047
= 1047
3.17
DD
DD
10
pins:
pins: