ADSP-2189MBSTZ-266 Analog Devices Inc, ADSP-2189MBSTZ-266 Datasheet - Page 16

• Manufacturer Part Number: ADSP-2189MBSTZ-266
• Description: IC,DSP,16-BIT,CMOS,QFP,100PIN,PLASTIC
• Manufacturer: Analog Devices Inc
• Series: ADSP-21xxr
• Type: Fixed Pointr

Specifications of ADSP-2189MBSTZ-266

• Interface: Host Interface, Serial Port
• Clock Rate: 66MHz
• Non-volatile Memory: External
• On-chip Ram: 192kB
• Voltage - I/o: 3.30V
• Voltage - Core: 2.50V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 100-LQFP
• Device Core Size: 16b
• Format: Fixed Point
• Clock Freq (max): 66MHz
• Mips: 66
• Device Input Clock Speed: 66MHz
• Ram Size: 192KB
• Operating Supply Voltage (typ): 2.5/3.3V
• Operating Supply Voltage (min): 2.25V
• Operating Supply Voltage (max): 2.75/3.6V
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADSP-2189MBSTZ266

ADSP-2189M
FREQUENCY DEPENDENCY FOR TIMING
SPECIFICATIONS
t
with a frequency equal to half the instruction rate: a 37.50 MHz
input clock (which is equivalent to 28 ns) yields a 13 ns proces-
sor cycle (equivalent to 75 MHz). t
0.5t
rameters to obtain the specification value.
Example: t
ENVIRONMENTAL CONDITIONS
Rating Description
Thermal Resistance
NOTE
1
POWER DISSIPATION
To determine total power dissipation in a specific application,
the following equation should be applied for each output:
C = load capacitance, f = output switching frequency.
Example:
In an application where external data memory is used and no
other outputs are active, power dissipation is calculated as follows:
Assumptions:
• External data memory is accessed every cycle with 50% of
• External data memory writes occur every other cycle with
• Each address and data pin has a 10 pF total load at the pin.
• The application operates at V
P
graph (Figure 15).
(C × V
Parameters
Address, DMS
Data Output, WR 9
RD
CLKOUT
Total power dissipation for this example is P
Where the ambient temperature rating (T
CK
INT
T
T
PD = Power dissipation in W.
(Case-to-Ambient)
(Junction-to-Ambient)
(Junction-to-Case)
AMB
CASE
the address pins switching.
50% of the data pins switching.
is defined as 0.5t
CKI
= internal power dissipation from Power vs. Frequency
= T
DDEXT
= Case temperature in °C
period should be substituted for all relevant timing pa-
Total Power Dissipation = P
CASE
CKH
2
– (PD × θ
× f) is calculated for each output:
= 0.5t
# of
Pins C
8
1
1
CKI
CA
CK
)
. The ADSP-2189M uses an input clock
10 pF 3.3
10 pF 3.3
10 pF 3.3
10 pF 3.3
– 7 ns = 0.5 (15 ns) – 7 ns = 0.5 ns
C × V
DD
V
DDEXT
DDEXT
AMB
INT
2
CK
2
2
2
2
× f
V
V
V
V
) is:
1
+ (C × V
values within the range of
= 3.3 V and t
Symbol
θ
θ
θ
2
CA
JA
JC
f
33.3 MHz
16.67 MHz 16.3 mW
16.67 MHz
33.3 MHz
INT
DDEXT
+ 50.7 mW.
2
CK
× f)
Value
48°C/W
50°C/W
2°C/W
PD
29.0 mW
50.7 mW
= 15 ns.
1.8 mW
3.6 mW
–16–
Output Drive Currents
Figure 14 shows typical I-V characteristics for the output drivers
on the ADSP-2189M. The curves represent the current drive
capability of the output drivers as a function of output voltage.
Figure 14. Typical Output Driver Characteristics
–20
–40
–60
–80
80
60
40
20
0
0
V
V
V
0.5
DDEXT
DDEXT
DDEXT
= 3.3V @ +25 C
= 3.6V @ –40 C
= 2.5V @ +85 C
1.0
V
OL
SOURCE VOLTAGE – V
1.5
V
DDEXT
2.0
V
DDEXT
V
= 3.6V @ –40 C
OH
V
2.5
DDEXT
= 2.5V @ +85 C
= 3.3V @ +25 C
3.0
3.5
4.0
REV. A