DS2168 Dallas Semiconducotr, DS2168 Datasheet - Page 11

• Manufacturer Part Number: DS2168
• Description: (DS2167 / DS2168) ADPCM Processor
• Manufacturer: Dallas Semiconducotr

PCM INTERFACE
AC ELECTRICAL CHARACTERISTICS
NOTES:
1. Measured at V
2. Load = 150 pF + 2 LSTTL loads.
3. For LSB of PCM byte or ADPCM nibble.
4. Maximum width of FSX, FSY is one CLKX, CLKY period.
5. MCLK = 10 MHz + 500 ppm.
PARAMETER
MCLK Period
MCLK Pulse Width
MCLK Rise and Fall Times
CLKX, CLKY Period
CLKX, CLKY Pulse Width
CLKX, CLKY Rise and Fall Times
Hold Time from CLKX, CLKY to
FSX, FSY
Setup Time from FSX, FSY to
CLKX, CLKY low
Hold Time from CLKX, CLKY low
to FSX, FSY low
XIN, YIN Setup to CLKX, CLKY
low
XIN, YIN Hold to CLKX, CLKY
low
Delay Time from CLKX, CLKY to
Valid XOUT, YOUT
Delay Time from CLKX, CLKY to
XOUT, YOUT Tri-stated
IH
= 2.0V, V
IL
= 0.8V, and 10 ns maximum rise and fall times.
SYMBOL
t
t
RXY
t
RM
t
t
t
t
WXYH
t
t
WMH
WXYL
HOLD
DXYO
t
DXYZ
t
WML
PXY
t
t
t
t
PM
HF
SD
HD
SF
, t
, t
FXY
FM
,
,
MIN
244
100
100
45
50
50
50
10
20
0
TYP
100
488
244
50
10
5
(0 C to 70 C, V
MAX
5208
150
150
55
10
20
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DD
DS2167/DS2168
= 5V + 10%)
022698 11/15
NOTES
1,2,3
5
4
1
1
1
1
1
2