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參數(shù)資料
| 型號： | 7B991 |
| 廠商： | Maxwell Technologies, Inc |
| 英文描述： | Programmable Skew Clock Buffer (PSCB) |
| 中文描述： | 可編程偏移時鐘緩沖器（PSCB） |
| 文件頁數(shù)： | 2/17頁 |
| 文件大?。?/td> | 253K |
| 代理商： | 7B991 |
M
2
All data sheets are subject to change without notice
2002 Maxwell Technologies.
All rights reserved.
Programmable Skew Clock Buffer (PSCB)
7B991
09.23.02 Rev 4
T
ABLE
1. 7B991 P
INOUT
D
ESCRIPTIONS
P
IN
S
YMBOL
I/O
D
ESCRIPTION
1
REF
I
Reference frequency input supplies the frequency and timng
against which all functional variation is measured.
PLL feedback (typically connected to one of the eight outputs)
Three-level frequency range select. See Table 2.
Three-level function select inputs for output pair 1 (1Q0, 1Q1). See
Table 2.
Three-level function select inputs for output pair 2 (2Q0, 2Q1). See
Table 2.
Three-level function select inputs for output pair 3 (3Q0, 3Q1). See
Table 2.
Three-level function select inputs for output pair 4 (4Q0, 4Q1). See
Table 2.
Three-level select. See test mode section under the block diagram
descriptions.
Output pair 1. See Table 2.
Output pair 2. See Table 2.
Output pair 3. See Table 2.
Output pair 4. See Table 2.
Power supply for output drivers
Power supply for internal circuitry
Ground.
17
3
FB
FS
I
I
I
26, 27
1F0, 1F1
29, 30
2F0, 2F1
I
4, 5
3F0, 3F1
I
6, 7
4F0, 4F1
I
31
TEST
I
23, 24
21, 22
14, 15
10, 11
9, 16, 18, 25
2
12, 13, 21,
22, 28, 32
1Q1, 1Q0
2Q1, 2Q0
3Q1, 3Q0
4Q1, 4Q0
V
CCN
V
CCQ
GND
O
O
O
O
PWR
PWR
PWR
T
ABLE
2. 7B991 A
BSOLUTE
M
AXIMUM
R
ATINGS
P
ARAMETER
S
YMBOL
M
IN
M
AX
U
NIT
Storage Temperature
Operating Temperature Range
Supply Voltage to Ground Potential
DC Input Voltage
Output Current into Outputs (LOW)
Static Discharge Voltage (per MIL-STD-882, Method 3015)
Latchup Current
T
S
T
A
V
S
V
I
I
OUT
V
SD
I
LU
-65
-40
-0.5
-0.5
--
>2001
>200
150
85
7.0
7.0
64
--
--
°
C
°
C
V
V
mA
V
mA
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