AK2308LV_05 Datasheet, PDF (21/31 Pages) Asahi Kasei Microsystems – SPEECH CODEC for Digital Key telephone

ASAHI KASEI
[AK2308LV]
♦AC Characteristics
Note) Otherwise specified, Ta=-10℃～+70 degree, VDD=3.3V +/- 0.3V(AK2308LV), VSS=0V, FS=8kHz
are assumed. All the timing parameters are measured at VOH=VDD-0.5, VOL=0.4V.
PCM Interface
u/A-law mode（Long Frame ,Short Frame） & Linear PCM mode
Items
FS frequency
BCLK frequency
Note1)
Clock width
Falling/rising time
Output delay
Pin Name
FS
BCLK
Parm.
FFS
FBCLK
BCLK
FS,BCLK,DR
DX
DX
WP
TD
TDX
TDX2
Conditions
-
-
-
-
Cl=50pF
Cl=50pF
MIN
TYP
MAX
-
8
-
-
64×N
-
100
-
-
-
-
40
-
-
60
10
-
60
Setup time
FS
TFSS
-
DR
TDRS
-
100
-
-
100
-
-
Hold time
FS
TFSH
-
DR
TDRH
-
100
-
-
100
-
-
FS Low level width
FS
TWLFS
-
1
-
-
Note1）Short Frame, Long Frame:64 x N kHz (N=1 to 32), Linear mode:64 x N kHz(N=2 to 32)
Unit
kHz
kHz
ns
ns
ns
ns
ns
ns
ns
ns
BCLK
AK130 B1ch/B2ch mode
Items
FS frequency
Clock frequency
Pulse width
Pin Name
FS
BCLK
BCLK
Falling/Rising time
Output delay
Setup time
FS,BCLK,DR
DX
DX
FS
DR
FS
Hold time
DR
Parm.
FFS
FBCLK
WP
TD
TDX
TDX2
TFSS
TDRS
TFSH
TDRH
Conditions
-
-
-
-
CL=50pF
CL=50pF
-
-
-
-
MIN
TYP
MAX Unit
-
8
-
kHz
-
2.048
-
kHz
-
244
-
ns
-
-
40
ns
-
-
60
ns
10
-
60
ns
100
-
-
ns
100
-
-
ns
100
-
-
ns
100
-
-
ns
u/A-law PCM mode（Short Frame） & Linear PCM mode
FFS
TFSH
TFSS
TFSH
TFSS
FS
BCLK
WP
WP
FBCLK
TDX
DX
TDX
TDX2
TDRS
TDRH
DR
MS0227-E-01
21
2005/12