參數(shù)資料
型號(hào): AK2306
廠商: Asahi Kasei Microsystems Co.,Ltd
元件分類: Codec
英文描述: Dual PCM CODEC for ISDN/VoIP TERMINAL ADAPTER
中文描述: 雙的PCM編解碼器對(duì)ISDN / VoIP終端適配器
文件頁(yè)數(shù): 29/38頁(yè)
文件大小: 469K
代理商: AK2306
ASAHI K ASEI
[AK 2306/LV]
PCM INTERFACE ( Long Frame, Short Frame, GCI )
Unless otherwise noted, the specification applies for TA = -40 to +85
o
C, VDD = 5V±5%/3V±0.3V,VSS = 0V and
FS0= 8kHz. All timing parameters are measured at VOH = 0.8VDD and VOL =0.4V.
Parameter
MS0093-E -04 29 2001/11
Symbol
Min
Typ
Max Units Ref Fig
FS Frequency
1/t
PF
-
8
-
kHz
BCLK Frequency
1/t
PB
128
4096
kHz
BCLK Pulse Width High
t
WBH
80
ns
BCLK Pulse Width Low
t
WBL
80
ns
Rising Time: (BCLK,FS0,FS1,DX0,DX1,DR0,DR1)
t
R
40
ns
Falling Time: (BCLK,FS0,FS1,DX0,DX1,DR0,DR1)
t
F
40
ns
Hold Time: BCLK Low to FS High
t
HBF
40
ns
Setup Time: FS High to BCLK Low
t
SFB
70
ns
Setup Time: DR to BCLK Low
t
SDB
40
ns
Hold Time: BCLK Low to DR
t
HBD
40
ns
Delay Time: BCLK High to DX valid Note1)
t
DBD
60
ns
Fig1
Fig2
Fig3
Long Frame
Hold Time: 2
nd
period of BCLK Low to FS Low
Delay Time: FS or BCLK High, whichever is later,to DX valid
Note1)
Delay Time: BCLK Low to DX High-Z
Note1)
t
HBFL
40
ns
t
DZFL
60
ns
t
DZCL
10
60
ns
FS Pulse Width Low
t
WFSL
1
BCL
K
Fig1
Short Frame
Hold Time: BCLK Low to FS Low
t
HBFS
40
ns
Setup Time: FS Low to BCLK Low
Delay Time: BCLK Low to DX High-Z
Note1)
GCI
t
SFBS
40
ns
t
DZCS
10
60
ns
Fig2
BCLK Frequency
1/t
PBG
512
4096
kHz
Delay Time: Second BCLK Low to DX High-Z
t
DZCG
10
60
ns
Setup Time: DR to Second BCLK High
t
SDBG
40
ns
Hold Time: Second BCLK High to DR
Note1) Measured with 150pF Load capacitance and driving two LSTTLs
t
HBDG
40
ns
Fig3
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