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MC145483ENR2 Datasheet, PDF (14/24 Pages) Freescale Semiconductor, Inc – 3 V 13-BIT LINEAR PCM CODEC-FILTER
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Freescale Semiconductor, Inc.
DIGITAL SWITCHING CHARACTERISTICS, LONG FRAME SYNC AND SHORT FRAME SYNC
(VDD = 2.7 to 3.6 V, VSS = 0 V, All Digital Signals Referenced to VSS, TA = – 40 to + 85°C, CL = 150 pF, Unless Otherwise Noted)
Ref.
No.
Characteristics
Min
Typ
Max
Unit
1 Master Clock Frequency for MCLK
—
256
—
kHz
—
512
—
—
1536
—
—
1544
—
—
2048
—
—
2560
—
—
4096
—
1 MCLK Duty Cycle for 256 kHz Operation
45
—
55
%
2 Minimum Pulse Width High for MCLK (Frequencies of 512 kHz or Greater)
50
—
—
ns
3 Minimum Pulse Width Low for MCLK (Frequencies of 512 kHz or Greater)
50
—
—
ns
4 Rise Time for All Digital Signals
—
—
50
ns
5 Fall Time for All Digital Signals
—
—
50
ns
6 Setup Time from MCLK Low to FST High
50
—
—
ns
7 Setup Time from FST High to MCLK Low
50
—
—
ns
8 Bit Clock Data Rate for BCLKT or BCLKR
256
—
4096
kHz
9 Minimum Pulse Width High for BCLKT or BCLKR
50
—
—
ns
10 Minimum Pulse Width Low for BCLKT or BCLKR
50
—
—
ns
11 Hold Time from BCLKT (BCLKR) Low to FST (FSR) High
20
—
—
ns
12 Setup Time for FST (FSR) High to BCLKT (BCLKR) Low
80
—
—
ns
13 Setup Time from DR Valid to BCLKR Low
0
—
—
ns
14 Hold Time from BCLKR Low to DR Invalid
50
—
—
ns
LONG FRAME SPECIFIC TIMING
15 Hold Time from 2nd Period of BCLKT (BCLKR) Low to FST (FSR) Low
50
—
—
ns
16 Delay Time from FST or BCLKT, Whichever is Later, to DT for Valid MSB Data
—
—
60
ns
17 Delay Time from BCLKT High to DT for Valid Data
—
—
60
ns
18 Delay Time from the Later of the 13th (16th for Sign–Extended Mode) BCLKT
10
—
60
ns
Falling Edge, or the Falling Edge of FST to DT Output High Impedance
19 Minimum Pulse Width Low for FST or FSR
50
—
—
ns
SHORT FRAME SPECIFIC TIMING
20 Hold Time from BCLKT (BCLKR) Low to FST (FSR) Low
50
—
—
ns
21 Setup Time from FST (FSR) Low to MSB Period of BCLKT (BCLKR) Low
50
—
—
ns
22 Delay Time from BCLKT High to DT Data Valid
10
—
60
ns
23 Delay Time from the 13th (16th for Sign–Extended Mode) BCLKT Low to DT
10
—
60
ns
Output High Impedance
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