DSPB56374AE Freescale Semiconductor, DSPB56374AE Datasheet - Page 29

• Manufacturer Part Number: DSPB56374AE
• Description: IC DSP 24BIT 150MHZ 52-LQFP
• Manufacturer: Freescale Semiconductor
• Series: Symphony™r
• Type: Audio Processorr

Specifications of DSPB56374AE

• Interface: Host Interface, I²C, SAI, SPI
• Clock Rate: 150MHz
• Non-volatile Memory: ROM (84 kB)
• On-chip Ram: 54kB
• Voltage - I/o: 3.30V
• Voltage - Core: 1.25V
• Operating Temperature: -40°C ~ 110°C
• Mounting Type: Surface Mount
• Package / Case: 52-LQFP
• Product: DSPs
• Data Bus Width: 24 bit
• Processor Series: DSP563xx
• Core: 56000
• Numeric And Arithmetic Format: Fixed-Point
• Device Million Instructions Per Second: 150 MIPS
• Maximum Clock Frequency: 150 MHz
• Program Memory Type: Flash
• Program Memory Size: 24 KB
• Data Ram Size: 54 KB
• Operating Supply Voltage: 1.25 V or 3.3 V
• Maximum Operating Temperature: + 110 C
• Mounting Style: SMD/SMT
• Interface Type: SIA, SHI
• Minimum Operating Temperature: - 40 C
• Leaded Process Compatible: Yes
• Rohs Compliant: Yes
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

9
The timing waveforms shown in the AC electrical characteristics section are tested with a V
of 0.8 V and a V
device input signal, are measured in production with respect to the 50% point of the respective input
signal’s transition. DSP56374 output levels are measured with the production test machine V
reference levels set at 1.0 V and 1.8 V, respectively.
10
11
The DSP56374 system clock is derived from the on-chip oscillator or is externally supplied. To use the
on-chip oscillator, connect a crystal and associated resistor/capacitor components to EXTAL and XTAL;
an example is shown below.
Freescale Semiconductor
Note:
No.
1
2
3
4
5
1
2
3
See users manual for definition.
DF = Division Factor
Maximum frequency will vary depending on the ordered part number.
Ef = External Frequency
Mf = Multiplication Factor
PDF = Predivision Factor
FM= Frequency Multiplier
OD = Output Divider
Tc = Internal Clock Period
Comparison Frequency
Input Clock Frequency
Output clock Frequency (with
PLL enabled)
Output clock Frequency (with
PLL disabled)
Duty Cycle
AC Electrical Characteristics
Internal Clocks
External Clock Operation
Characteristics
IH
2,3
2,3
minimum of 2.0 V for all pins. AC timing specifications, which are referenced to a
Symbol
FOUT
FOUT
Fref
FIN
Tc
—
Table 18. INTERNAL CLOCKS
DSP56374 Data Sheet, Rev. 4.2
13.3
Min
75
—
40
5
(PDF × DF x OD)
(Ef × MF x FM)/
Typ
Fref*NR
50
—
Ef
1
Max
150
150
20
60
MHz
MHz
MHz
Unit
ns
%
AC Electrical Characteristics
Fref = FIN/NR
NR is input divider value
FOUT=FVCO/NO where
NO is output divider value
—
FVCO=300MHz~600MHz
Condition
IL
OL
maximum
and V
OH
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