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參數(shù)資料
| 型號： | MT8940 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | T1/CEPT Digital Trunk PLL(T1/CEPT數(shù)字中繼鎖相環(huán)) |
| 中文描述： | T1/CEPT數(shù)字集群鎖相環(huán)（T1/CEPT數(shù)字中繼鎖相環(huán)） |
| 文件頁數(shù)： | 11/19頁 |
| 文件大?。?/td> | 132K |
| 代理商： | MT8940 |
ISO-CMOS
MT8940
3-37
Timing is over recommended temperature & power supply voltages.
Typical figures are at 25
°
C and are for design aid only: not guaranteed and not subject to production testing.
Figure 9 - Timing Information for DPLL #1 in NORMAL Mode
Timing is over recommended temperature & power supply voltages.
Typical figures are at 25
°
C and are for design aid only: not guaranteed and not subject to production testing.
AC Electrical Characteristics
-
Voltages are with respect to ground (V
SS
) unless otherwise stated.
(Ref. Figure 9)
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
D
P
L
L
#1
Frame pulse input (F0i) to CVb
output (1.544 MHz) delay
t
F15H
-40
75
ns
2
CVb output (1.544 MHz) rise
time
t
r1.5
10
15
ns
Test load circuit 1 (Fig. 17).
3
CVb output (1.544 MHz) fall
time
t
f1.5
12
15
ns
Test load circuit 1 (Fig. 17).
4
CVb output (1.544 MHz) clock
period
t
P15
648
690
ns
5
CVb output (1.544 MHz) clock
width (HIGH)
t
W15H
320
386
ns
6
CVb output (1.544 MHz) clock
width (LOW)
t
W15L
314
327
ns
7
CV delay (HIGH to LOW)
t
15HL
t
15LH
5
30
ns
8
CV delay (LOW to HIGH)
-12
10
ns
AC Electrical Characteristics
-
Voltages are with respect to ground (V
SS
) unless otherwise stated.
(Ref. Figure 10)
Characteristics
Sym
Min
Typ
Max
Units
Test Conditions
1
D
P
L
L
#1
C8Kb output (8kHz) delay
(HIGH to HIGH)
t
C8HH
130
ns
Test load circuit 2 (Fig. 17).
2
C8Kb output (8 kHz) delay
(LOW to LOW)
t
C8LL
50
130
ns
Test load circuit 2 (Fig. 17).
3
C8Kb output duty cycle
66
50
%
%
In Divide -1 Mode
In Divide - 2 Mode
4
Inverted clock output delay
(HIGH to LOW)
t
ICHL
40
75
ns
5
Inverted clock output delay
(LOW to HIGH)
t
ICLH
35
60
ns
F0i
CVb
CV
V
IH
V
IL
V
OH
V
OL
V
OH
V
OL
t
F15H
t
f1.5
t
15HL
t
15LH
t
r1.5
t
P15
t
W15H
t
W15L
相關PDF資料 |
PDF描述 |
|---|---|
| MT8940 | ISO-CMOS ST-BUS⑩ FAMILY T1/CEPT Digital Trunk PLL |
| MT8940-1 | ISO-CMOS ST-BUS⑩ FAMILY T1/CEPT Digital Trunk PLL |
| MT8940AC | T1/CEPT Digital Trunk PLL |
| MT8940AE | ISO-CMOS ST-BUS⑩ FAMILY T1/CEPT Digital Trunk PLL |
| MT8941B | Advanced T1/CEPT Digital Trunk PLL(先進的T1/CEPT數(shù)字中繼鎖相環(huán)) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MT8940-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY T1/CEPT Digital Trunk PLL |
| MT8940AC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:T1/CEPT Digital Trunk PLL |
| MT8940AE | 制造商:MITEL 功能描述: |
| MT8941 | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Advanced T1/CEPT Digital Trunk PLL |
| MT8941AE | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Advanced T1/CEPT Digital Trunk PLL |
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