ADSP-21991 Datasheet, PDF (18/44 Pages) Analog Devices – Mixed Signal DSP Co

ADSP-21991
ELECTRICAL CHARACTERISTICS—ADSP-21991BBC
Parameter
Test Conditions
Min Typ
Max
Unit
V_IH
High Level Input Voltage¹
@ V_DDEXT = maximum 2.0
V_DDEXT
V
V_IH
High Level Input Voltage²
@ V_DDEXT = maximum 2.2
V_IL
High Level Input Voltage^{1, 2}
@ V_DDEXT = minimum
V_OH
High Level Output Voltage³
@ V_DDEXT = minimum, 2.4
V_DDEXT
V
0.8
V
V
I_OH = –0.5 mA
V_OL
Low Level Output Voltage³
@ V_DDEXT = minimum,
0.4
V
I_OL = 2.0 mA
I_IH
High Level Input Current⁴
@ V_DDINT = maximum,
10
µA
V_IN = 3.6 V
I_IH
High Level Input Current⁵
@ V_DDINT = maximum,
150
µA
V_IN = 3.6 V
I_IH
High Level Input Current⁶
@ V_DDINT = maximum,
10
µA
V_IN = 3.6 V
I_IL
Low Level Input Current
@ V_DDINT = maximum,
10
µA
V_IN = 0 V
I_IL
Low Level Input Current
@ V_DDINT = maximum,
10
µA
V_IN = 0 V
I_IL
Low Level Input Current
@ V_DDINT = maximum,
150
µA
V_IN = 0 V
I_OZH
Three-State Leakage Current⁷
@ V_DDINT = maximum,
10
µA
V_IN = 3.6 V
I_OZL
Three-State Leakage Current⁷
@ V_DDINT = maximum,
10
µA
V_IN = 0 V
C_I
Input Pin Capacitance
f_IN = 1 MHz
10
pF
C_O
Output Pin Capacitance
f_IN = 1 MHz
10
pF
I_DD-PEAK
Supply Current (Internal)^{8, 9}
190 325
mA
I_DD-TYP
I_DD-IDLE
I_DD-STOPCLK
I_DD-STOPALL
I_DD-PDOWN
Supply Current (Internal)⁸
Supply Current (Idle)⁸
Supply Current (Power-Down)^{8, 10}
Supply Current (Power-Down)^{8, 11}
Supply Current (Power-Down)^{8, 12}
155 275
mA
145 250
mA
60
125
mA
12
40
mA
6
30
mA
I_AVDD
Analog Supply Current¹³
46
65
mA
I_AVDD-ADCOFF
Analog Supply Current¹²
5
15
mA
1 _{Applies to all input and bidirectional pins.}
2 _{Applies to input pins CLKIN, RESET, TRST.}
3 _{Applies to all output and bidirectional pins.}
4 _{Applies to all input only pins.}
5 _{Applies to input pins with internal pull-down.}
6 _{Applies to input pins with internal pull-up.}
7 _{Applies to three-stateable pins.}
8 _{The IDD supply currents are affected by the operating frequency of the device. The guaranteed numbers are based on an assumed CCLK = 150 MHz,}
HCLK = 75 MHz for the ADSP-21991BBC. I_DD refers only to the current consumption on the internal power supply lines (V_DDINT). The current
consumption at the I/O on the V_DDEXT power supply is very much dependent on the particular connection of the device in the final system.
9 _{IDD-PEAK represents worst-case processor operation and is not sustainable under normal application conditions. Actual internal power measurements made}
using typical applications are less than specified. Measured at V_DDINT = maximum.
10_{IDLE denotes the current consumption during execution of the IDLE instruction. Measured at VDDINT = maximum.}
11_{IDD-PDOWN represents the processor operation in full power-down mode with both core and peripheral clocks disabled. Measured at VDDINT = maximum.}
12_{IAVDD represents the power consumption of the analog system. Measured at AVDD = maximum.}
13_{The responsibility lies with the user to ensure that the device is operated in such a manner that the maximum allowable junction temperature is not exceeded.}
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