DSPB56366AG120 Freescale Semiconductor, DSPB56366AG120 Datasheet - Page 31

• Manufacturer Part Number: DSPB56366AG120
• Description: IC DSP 24BIT AUD 120MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: Symphony™r
• Type: Audio Processorr

Specifications of DSPB56366AG120

• Interface: Host Interface, I²C, SAI, SPI
• Clock Rate: 120MHz
• Non-volatile Memory: ROM (240 kB)
• On-chip Ram: 69kB
• Voltage - I/o: 3.30V
• Voltage - Core: 3.30V
• Operating Temperature: -40°C ~ 110°C
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.7
The DSP56366 system clock is an externally supplied square wave voltage source connected to EXTAL
(See
Freescale Semiconductor
1
2
Internal clock cycle time with PLL
disabled
Instruction cycle time
DF = Division Factor
Ef = External frequency
ET
MF = Multiplication Factor
PDF = Predivision Factor
T
See the PLL and Clock Generation section in the DSP56300 Family Manual for a detailed discussion of the PLL.
No.
C
1
2
3
C
Figure
= internal clock cycle
= External clock cycle
Frequency of EXTAL (EXTAL Pin Frequency)
The rise and fall time of this external clock should be 3 ns maximum.
EXTAL input high
EXTAL input low
• With PLL disabled (46.7%–53.3% duty cycle
• With PLL enabled (42.5%–57.5% duty cycle
• With PLL disabled (46.7%–53.3% duty cycle
• With PLL enabled (42.5%–57.5% duty cycle
EXTERNAL CLOCK OPERATION
Characteristics
3-1).
Notes The midpoint is 0.5 (V
EXTAL
1, 2
1, 2
V
ILC
ETH
Characteristics
Figure 3-1 External Clock Timing
Symbol
DSP56366 Technical Data, Rev. 3.1
2
I
CYC
T
Table 3-5 Clock Operation
IHC
Table 3-4 Internal Clocks
C
+ V
4
ETL
ILC
3
3
3
3
).
)
)
)
)
3
ETC
Min
—
—
Expression
2 × ET
Midpoint
Typ
Symbol
T
C
ET
ET
Ef
H
L
C
1, 2
3.89 ns
3.54 ns
3.89 ns
3.54 ns
V
Min
IHC
0
Max
—
—
157.0 μs
157.0 μs
120.0
Max
∞
∞
3-5