鈥?/div>
REF is 5V tolerant
4 pairs of programmable skew outputs
Low skew: 200ps same pair, 250ps all outputs
Selectable positive or negative edge synchronization:
Excellent for DSP applications
Synchronous output enable
Output frequency: 3.75MHz to 85MHz
2x, 4x, 1/2, and 1/4 outputs
3 skew grades:
IDT5V991A-2: t
SKEW0
<250ps
IDT5V991A-5: t
SKEW0
<500ps
IDT5V991A-7: t
SKEW0
<750ps
3-level inputs for skew and PLL range control
PLL bypass for DC testing
External feedback, internal loop filter
12mA balanced drive outputs
Low Jitter: <200ps peak-to-peak
Available in 32-pin PLCC Package
IDT5V991A
DESCRIPTION:
The IDT5V991A is a high fanout 3.3V PLL based clock driver intended
for high performance computing and data-communications applications. A
key feature of the programmable skew is the ability of outputs to lead or lag
the REF input signal. The IDT5V991A has eight programmable skew
outputs in four banks of 2. Skew is controlled by 3-level input signals that
may be hard-wired to appropriate HIGH-MID-LOW levels.
When the GND/sOE pin is held low, all the outputs are synchronously
enabled. However, if GND/sOE is held high, all the outputs except 3Q0 and
3Q1 are synchronously disabled.
Furthermore, when the V
CCQ
/PE is held high, all the outputs are
synchronized with the positive edge of the REF clock input. When V
CCQ
/
PE is held low, all the outputs are synchronized with the negative edge of
REF. Both devices have LVTTL outputs with 12mA balanced drive outputs.
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
FUNCTIONAL BLOCK DIAGRAM
GND/sOE
1Q
0
3
1F1:0
V
CCQ
/PE
Skew
Select
REF
PLL
FB
3
FS
Skew
Select
3
3
3F1:0
Skew
Select
3
3
4F1:0
4Q
0
4Q
1
3Q
0
3Q
1
3
3
2F1:0
2Q
0
2Q
1
1Q
1
Skew
Select
3
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
COMMERCIAL AND INDUSTRIAL TEMPERATURE RANGES
1
c
2001
Integrated Device Technology, Inc.
SEPTEMBER 2001
DSC 5963/3
IDT5V991A-2JGI 產(chǎn)品屬性
IDT5V991A-2JGI相關(guān)型號PDF文件下載
-
型號
版本
描述
廠商
下載
-
英文版
PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK
IDT
-
英文版
PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK
IDT [Integ...
-
英文版
PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK?
IDT
-
英文版
PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK
IDT
-
英文版
PROGRAMMABLE SKEW PLL CLOCK DRIVER TURBOCLOCK
IDT [Integ...
-
英文版
2.5V SINGLE DATA RATE 1:5 CLOCK BUFFER TERABUFFER
IDT
-
英文版
2.5V SINGLE DATA RATE 1:5 CLOCK BUFFER TERABUFFER
IDT [Integ...
-
英文版
2.5V SINGLE DATA RATE 1:10 CLOCK BUFFER TERABUFFER
IDT
-
英文版
2.5V SINGLE DATA RATE 1:10 CLOCK BUFFER TERABUFFER
IDT [Integ...
-
英文版
2.5V DIFFERENTIAL 1:5 CLOCK BUFFER TERABUFFER
IDT
-
英文版
2.5V DIFFERENTIAL 1:5 CLOCK BUFFER TERABUFFER
IDT [Integ...
-
英文版
PRECISION CLOCK GENERATOR OC-48 APPLICATIONS
IDT
-
英文版
PRECISION CLOCK GENERATOR OC-48 APPLICATIONS
IDT [Integ...
-
英文版
PRECISION CLOCK GENERATOR OC-192 APPLICATIONS
IDT
-
英文版
PRECISION CLOCK GENERATOR OC-192 APPLICATIONS
IDT [Integ...
-
英文版
1:4 CLOCK BUFFER
IDT [Integrated...
-
英文版
PROGRAMMABLE CLOCK GENERATOR
IDT
-
英文版
PROGRAMMABLE CLOCK GENERATOR
IDT [Integ...
-
英文版
SINGLE OUTPUT CLOCK GENERATOR
IDT
-
英文版
SINGLE OUTPUT CLOCK GENERATOR
IDT [Integ...
1
2
3
4
5
6
7
8
