ADSP-21160MKB-80 Analog Devices Inc, ADSP-21160MKB-80 Datasheet - Page 42

• Manufacturer Part Number: ADSP-21160MKB-80
• Description: IC,DSP,32-BIT,CMOS,BGA,400PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: SHARC®r
• Type: Floating Pointr

Specifications of ADSP-21160MKB-80

• Rohs Compliant: NO
• Rohs Status: RoHS non-compliant
• Interface: Host Interface, Link Port, Serial Port
• Clock Rate: 80MHz
• Non-volatile Memory: External
• On-chip Ram: 512kB
• Voltage - I/o: 3.30V
• Voltage - Core: 2.50V
• Operating Temperature: 0°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 400-BGA

ADSP-21160M
Output Drive Currents
Figure 29
drive capability of the output drivers as a function of output voltage.
Figure 29. ADSP-21160M Typical Drive Currents
Power Dissipation
Total power dissipation has two components, one due to internal circuitry and one due to the switching of external output
drivers.
Internal power dissipation is dependent on the instruction execution sequence and the data operands involved. Using the
current specifications (I
sus-operation information in
current for a specific application, according to the following formula:
The external component of total power dissipation is caused by the switching of output pins. Its magnitude depends on:
• the number of output pins that switch during each cycle (O)
• the maximum frequency at which they can switch (f)
• their load capacitance (C)
• their voltage swing (VDD)
and is calculated by:
shows typical I–V characteristics for the output drivers of the ADSP-21160M. The curves represent the current
DDINPEAK
Table
, I
DDINHIGH
29, engineers can estimate the ADSP-21160M’s internal power supply (V
, I
DDINLOW
, I
DDIDLE
P
% High I
% Peak
% Low
EXT
+ % Idle I
------------------------------------------------- -
) from
= O × C × V
I
DDINT
–42–
I
I
DDINPEAK
DDINHIGH
DDINLOW
Electrical Characteristics on page 13
DDIDLE
DD
2
× f
and the current-ver-
DDINT
) input
REV. 0