SM5859AF Nippon Precision Circuits Inc, SM5859AF Datasheet - Page 6

• Manufacturer Part Number: SM5859AF
• Description: compression and non compression type antishock memory controller
• Manufacturer: Nippon Precision Circuits Inc

Note. When the memory system is OFF (through mode), the input data rate is synchronized to the system clock input (384fs), so input
AC characteristics
Standard voltage: VDD = 4.5 to 5.5 V, VSS = 0 V, Ta = -40 to 85 C
Low-voltage: VDD = 2.7 to 4.5 V, VSS = 0 V, Ta = -20 to 70 C
(*) Typical values are for fs = 44.1 kHz
System clock (CLK pin)
System clock input
Serial input (YSRDATA, YLRCK, YSCK pins)
Clock pulsewidth (HIGH level)
Clock pulsewidth (LOW level)
Last YSCK rising edge to YLRCK edge
YLRCK edge to first YSCK rising edge
data needs to be at 1/384 of this frequency. But, this IC can tolerate a certain amount of jitter. For details, refer to Through-mode
operation.
YSCK pulsewidth (HIGH level)
YSCK pulsewidth (LOW level)
Clock pulse cycle
YSRDATA
YLRCK pulse frequency
Parameter
YSRDATA setup time
YSRDATA hold time
YLRCK
YSCK pulse cycle
See note below.
YSCK
Parameter
CLK
Symbol
t
t
CWH
t
CWL
t
CY
DS
t
CWH
Symbol
t
t
BCWH
t
BCWL
t
t
t
t
BCY
DH
DS
BL
LB
t
SM5859AF
BCWH
t
t
t
CY
DH
BL
System clock
Condition
384fs
Min
150
t
75
75
40
40
40
40
t
fs
0
BCY
CWL
t
t
BCWL
LB
Rating
Typ
NIPPON PRECISION CIRCUITS-6
Min
Max
26
26
56
2fs
fs
0.5V
0.5V
0.5V
Rating
29.5
29.5
Typ
Unit
DD
DD
DD
59
ns
ns
ns
ns
ns
ns
ns
0.5V
Memory system OFF
Memory system ON
Max
125
125
250
DD
(MSON=H)
(MSON=L)
Condition
Unit
ns
ns
ns