參數(shù)資料
型號： ADSP-21msp58
廠商： Analog Devices, Inc.
英文描述： DSP Microcomputer(DSP 微計(jì)算機(jī))
中文描述： 微機(jī)的DSP（數(shù)字信號處理器微計(jì)算機(jī)）
文件頁數(shù)： 23/40頁
文件大?。?/td> 392K
代理商： ADSP-21MSP58
ADSP-21msp58/59
REV. 0
–23–
FRE QUE NCY RE SPONSE
ADC
Max
(dB)
ADC
Min
(dB)
DAC
Max
(dB)
DAC
Min
(dB)
Frequency
(Hz)
0+
75
150
300
1000
2000
3000
3400
3700
3850
4000
–60.00
–25.00
+0.266
+0.272
+0.000
+0.050
–0.200
–0.300
–0.375
–25.00
–60.00
N/A
N/A
–0.134
–0.128
+0.000
–0.350
–0.600
–0.700
–0.775
N/A
N/A
–60.00
–25.00
+0.015
+0.030
+0.000
+0.050
–0.050
–0.090
–0.120
–25.00
–60.00
N/A
N/A
–0.185
–0.170
+0.000
–0.200
–0.300
–0.340
–0.370
N/A
N/A
NOT ES
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 T est Conditions”
for RC filter details).
NOISE & DIST ORT ION
Parameter
Min
Max
Unit
T est Condition
ADC Intermodulation Distortion
DAC Intermodulation Distortion
ADC Idle Channel Noise
DAC Idle Channel Noise
ADC Crosstalk
1
–60
–70
dB
dB
dBm0
dBm0
dB
m, n = 1 and 2; f
a
= 984; f
b
= 1047
m, n = 1 and 2; f
a
= 984; f
b
= 1047
65
72
–65
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
CC
and V
DD
pins:
1.0 kHz, 100 mV p-p sine wave
Input signal level at V
CC
and V
DD
pins:
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
DAC Crosstalk
1
–65
dB
ADC Power Supply Rejection
1
–55
dB
DAC Power Supply Rejection
1
–55
dB
ADC Group Delay
1
DAC Group Delay
1
ADC SNR and T HD
DAC SNR and T HD
1
1
ms
ms
dB
dB
65
72
NOT E
1
Guaranteed but not tested.
V
IN
– dBm0
100
80
0
S
–60
10
–50
–40
–30
–20
–10
0
60
40
20
DAC SNR + THD
3.17
PEAK @
72dB
SLOPE =
20dB
20dBm0
V
IN
– dBm0
100
80
0
S
–60
10
–50
–40
–30
–20
–10
0
60
40
20
ADC SNR + THD
3.17
PEAK @
65dB
SLOPE =
20dB
20dBm0
Figure 14. SNR + THD vs. V
IN
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