DSPB56724AG Freescale Semiconductor, DSPB56724AG Datasheet - Page 26

• Manufacturer Part Number: DSPB56724AG
• Description: DSP 24BIT AUD 250MHZ 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: Symphony™r
• Type: Audio Processorr

Specifications of DSPB56724AG

• Interface: Host Interface, I²C, SAI, SPI
• Clock Rate: 250MHz
• Non-volatile Memory: External
• On-chip Ram: 112kB
• Voltage - I/o: 3.30V
• Voltage - Core: 1.20V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 144-LQFP
• Operating Temperature (min): 0C
• Operating Temperature (max): 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 144
• Package Type: LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

26
Note:
1. 0.95 V < V
2. i ck = internal clock
3. bl = bit length
4. SCKT(SCKT pin) = transmit clock
5. For the internal clock, the external clock cycle is defined by Tc and the ESAI control register.
6. The word-relative frame sync signal waveform relative to the clock operates in the same manner as the bit-length frame sync
7. Periodically sampled and not 100% tested.
8. ESAI_1, ESAI_2, ESAI_3 specs match those of ESAI.
No.
92
93
94
95
96
97
x ck = external clock
i ck a = internal clock, asynchronous mode
(asynchronous implies that SCKT and SCKR are two different clocks)
i ck s = internal clock, synchronous mode
(synchronous implies that SCKT and SCKR are the same clock)
wl = word length
wr = word length relative
SCKR(SCKR pin) = receive clock
FST(FST pin) = transmit frame sync
FSR(FSR pin) = receive frame sync
HCKT(HCKT pin) = transmit high frequency clock
HCKR(HCKR pin) = receive high frequency clock
signal waveform, but spreads from one serial clock before first bit clock (same as bit length frame sync signal), until the one
before last bit clock of the first word in frame.
FST input (wl) to data out enable from high impedance
FST input (wl) to transmitter #0 drive enable assertion
Flag output valid after SCKT rising edge
HCKR/HCKT clock cycle
HCKT input rising edge to SCKT output
HCKR input rising edge to SCKR output
VDD_CORE
< 1.05 V and Tj < 100° C, C
Symphony
Characteristics
Table 11. Enhanced Serial Audio Interface Timing (Continued)
™
DSP56724/ DSP56725 Multi-Core Audio Processors, Rev. 2
1, 2, 3
L
= 50 pF
Symbol Expression
—
—
—
—
—
—
2 × T
—
—
—
—
—
C
3
Min
10
—
—
—
—
—
—
Max
14.0
21.0
14.0
18.0
18.0
Freescale Semiconductor
9.0
—
Condition
x ck
i ck
—
—
—
—
—
4
Unit
ns
ns
ns
ns
ns
ns