Rainbow Electronics DS2130Q User Manual
Page 18
DS2130Q
041295 18/22
PCM INTERFACE
AC ELECTRICAL CHARACTERISTICS
(0
°
C to 70
°
C; V
CC
=5V + 10%)
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
NOTES
PCMCLK, CPXCLK Clock Period
t
P
244
5208
ns
1
PCMCLK, CPXCLK Pulse Width
High
t
WH
100
ns
PCMCLK, CPXCLK Rise, Fall
Times
t
R
t
F
10
20
ns
Hold Time from PCMCLK,
CPXCLK to PCMFS, CPXFS
t
HOLD
0
ns
2
Setup Time from PCMFS, CPXFS
high to PCMCLK, CPXCLK low
t
SF
50
ns
2
Hold Time from PCMCLK,
CPXCLK Low to PCMFS, CPXFS
Low
t
HF
100
ns
2
Setup Time for PCMIN, CPXIN to
PCMCLK, CPXCLK Low
t
SD
50
ns
2
Hold Time for PCMIN, CPXIN to
PCMCLK, CPXCLK Low
t
HD
50
ns
2
Delay Time from PCMCLK,
CPXCLK to Valid PCMOUT,
CPXOUT
t
DO
10
150
ns
3
Delay Time from PCMCLK,
CPXCLK to PCMOUT, CPXOUT
3-stated
t
DZ
20
150
ns
2,3,4
NOTES:
1. At least nine CPXCLK( or PCMCLK) clocks must be received within 1/3 of the CPXFS (or PCMFS) period.
2. Measured at V
IH
= 2.0V, V
IL
= 0.8V, and 10 ns maximum rise and fall times.
3. Load = 150 pF + 2 LSTTL loads.
4. For LSB of PCM or CPX word.