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MT8924AS 参数 Datasheet PDF下载

MT8924AS图片预览
型号: MT8924AS
PDF下载: 下载PDF文件 查看货源
内容描述: PCM电路会议(PCC )的初步信息 [PCM Conference Circuit (PCC) Preliminary Information]
分类和应用: PC
文件页数/大小: 18 页 / 105 K
品牌: MITEL [ MITEL NETWORKS CORPORATION ]
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Preliminary Information  
MT8924  
AC Electrical Characteristics - PCM Timing* (TOP=0 to 70°C; VDD=5V 5%)  
Characteristics  
Sym  
Min  
Typ  
Max  
Units  
Test Conditions  
1
2
3
Input PCM setup time  
Input PCM hold time  
tSPCM  
tHPCM  
tPD  
80  
35  
25  
ns  
ns  
ns  
Output PCM propagation delay  
125  
CL=150pF, RL=1KΩ  
in 2.048MHz mode **  
*All AC characteristics are valid 250µs after VDD and the clock have been applied. CL is the max. capacitive load and RL is the test pull up  
resistor.  
**With Extra Bit Insert operating mode these times are 80ns longer.  
0
1
2
Cki  
F0i  
t
t
SPCM HPCM  
DSTi  
MSB  
t
PD  
DSTo  
MSB  
Figure 6 - PCM Timing  
AC Electrical Characteristics - RESET Timing* (TOP=0 to 70°C; VDD=5V 5%)  
Characteristics  
Sym  
Min  
Typ  
Max  
Units  
Test Conditions  
1
2
3
4
RESET low setup time  
RESET low hold time  
RESET high setup time  
RESET high level width  
tSLRES  
tHLRES  
tSHRES  
tWHRES  
100  
50  
ns  
ns  
ns  
ns  
90  
tCK  
* All AC characteristics are valid 250µs after VDD and the clock have been applied. CL is the max. capacitive load and RL is the test pull up  
resistor.  
Cki  
t
SLRES  
t
HLRES  
t
SHRES  
RESET  
t
WHRES  
Figure 7 - Reset Timing  
8-13  
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