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Integrated Circuit Systems - DDR Phase Lock Loop Zero Delay Clock Buffer

Numéro de référence ICS93705
Description DDR Phase Lock Loop Zero Delay Clock Buffer
Fabricant Integrated Circuit Systems 
Logo Integrated Circuit Systems 





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ICS93705 fiche technique
Integrated
Circuit
Systems, Inc.
ICS9370 5
DDR Phase Lock Loop Zero Delay Clock Buffer
Recommended Application:
DDR Zero Delay Clock Buffer
Product Description/Features:
• Low skew, low jitter PLL clock driver
• I2C for functional and output control
• Feedback pins for input to output synchronization
• Spread Spectrum tolerant inputs
• 3.3V tolerant CLK_INT input
Switching Characteristics:
• PEAK - PEAK jitter (66MHz): <120ps
• PEAK - PEAK jitter (>100MHz): <75ps
• CYCLE - CYCLE jitter (66MHz):<120ps
• CYCLE - CYCLE jitter (>100MHz):<65ps
• OUTPUT - OUTPUT skew: <100ps
• Output Rise and Fall Time: 450ps - 950ps
• DUTY CYCLE: 49% - 51%
Pin Configuration
GND
CLKC0
CLKT0
VDD
CLKT1
CLKC1
GND
GND
CLKC2
CLKT2
VDD
SCLK
CLK_INT
N/C
VDD
AVDD
AGND
GND
CLKC3
CLKT3
VDD
CLKT4
CLKC4
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48 GND
47 CLKC5
46 CLKT5
45 VDD
44 CLKT6
43 CLKC6
42 GND
41 GND
40 CLKC7
39 CLKT7
38 VDD
37 SDATA
36 N/C
35 FB_INT
34 VDD
33 FB_OUTT
32 N/C
31 GND
30 CLKC8
29 CLKT8
28 VDD
27 CLKT9
26 CLKC9
25 GND
48-Pin SSOP
Block Diagram
SCLK
SDATA
Control
Logic
FB_INT
CLK_INT
PLL
FB_OUTT
CLKT0
CLKC0
CLKT1
CLKC1
CLKT2
CLKC2
CLKT3
CLKC3
CLKT4
CLKC4
CLKT5
CLKC5
CLKT6
CLKC6
CLKT7
CLKC7
CLKT8
CLKC8
CLKT9
CLKC9
Functionality
INPUTS
OUTPUTS
AVDD CLK_INT CLKT CLKC FB_OUTT
2.5V
(nom)
L
LH
L
2.5V
(nom)
H
HL
H
2.5V
(nom)
<20MHz(1)
Z
Z
Z
GND
L
LH
L
GND
H
HL
H
PLL State
on
on
off
Bypassed/off
Bypassed/off
0418C—08/08/02

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