Datasheet

Rev. I | Page 24 of 64 | August 2013
ADSP-BF531/ADSP-BF532/ADSP-BF533
Table 16. Activity Scaling Factors
I
DDINT
Power Vector
1
Activity Scaling Factor (ASF)
2
I
DD-PEAK
1.27
I
DD-HIGH
1.25
I
DD-TYP
1.00
I
DD-APP
0.86
I
DD-NOP
0.72
I
DD-IDLE
0.41
1
See EE-229 for power vector definitions.
2
All ASF values determined using a 10:1 CCLK:SCLK ratio.
Table 17. Dynamic Current (mA, with ASF = 1.0)
1
Voltage (V
DDINT
)
2
Frequency
(MHz)
2
0.80 V 0.85 V 0.90 V 0.95 V 1.00 V 1.05 V 1.10 V 1.15 V 1.20 V 1.25 V 1.30 V 1.32 V 1.375 V 1.43 V 1.45 V
50 12.7 13.9 15.3 16.8 18.1 19.4 21.0 22.3 24.0 25.4 26.4 27.2 28.7 30.3 30.7
100 22.6 24.2 26.2 28.1 30.1 31.8 34.7 36.2 38.4 40.5 43.0 43.4 45.7 47.9 48.9
200 40.8 44.1 46.9 50.3 53.3 56.9 59.9 63.1 66.7 70.2 73.8 75.0 78.7 82.4 84.6
250 50.1 53.8 57.2 61.4 64.7 68.9 72.9 76.8 81.0 85.1 89.3 90.8 95.2 99.6 102.0
300 N/A 63.5 67.4 72.4 76.2 81.0 85.9 90.6 95.2 100.0 104.8 106.6 111.8 116.9 119.4
375 N/A N/A N/A 88.6 93.5 99.0 104.6 110.3 116.0 122.1 128.0 130.0 136.2 142.4 145.5
400 N/A N/A N/A 93.9 99.3 105.0 110.8 116.8 123.0 129.4 135.7 137.9 144.6 151.2 154.3
425 N/A N/A N/A N/A N/A 111.0 117.3 123.5 129.9 136.8 143.2 145.6 152.6 159.7 162.8
475 N/A N/A N/A N/A N/A N/A 130.3 136.8 143.8 151.4 158.1 161.1 168.9 176.6 179.7
500 N/A N/A N/A N/A N/A N/A N/A 143.5 150.7 158.7 165.6 168.8 177.0 185.2 188.2
533 N/A N/A N/A N/A N/A N/A N/A N/A 160.4 168.8 176.5 179.6 188.2 196.8 200.5
600 N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 196.2 199.6 209.3 219.0 222.6
1
The values are not guaranteed as stand-alone maximum specifications, they must be combined with static current per the equations of Electrical Characteristics on Page 22.
2
Valid temperature and voltage ranges are model-specific. See Operating Conditions on Page 20.