ICS98ULPA877A Datasheet, PDF (1/14 Pages) Integrated Device Technology – 1.8V Low-Power Wide-Range Frequency Clock Driver

Integrated
Circuit
Systems, Inc.
ICS98UL PA8 77A
Advance Information
1.8V Low-Power Wide-Range Frequency Clock Driver
Recommended Application:
• DDR2 Memory Modules / Zero Delay Board Fan Out
• Provides complete DDR2 DIMM logic solution
Product Description/Features:
• Low skew, low jitter PLL clock driver
• 1 to 10 differential clock distribution (SSTL_18)
• Feedback pins for input to output synchronization
• Spread Spectrum tolerant inputs
• Auto PD when input signal is at a certain logic state
Switching Characteristics:
• Period jitter: 40ps (DDR2-400/533)
30ps (DDR2-667/800)
• Half-period jitter: 60ps (DDR2-400/533)
50ps (DDR2-667/800)
• OUTPUT - OUTPUT skew: 40ps (DDR2-400/533)
30ps (DDR2-667/800)
• CYCLE - CYCLE jitter 40ps
Block Diagram
Pin Configuration
123456
A
B
C
D
E
F
G
H
J
K
1
A CLKT1
B CLKC1
C CLKC2
D CLKT2
E CLK_INT
F CLK_INC
G AGND
H AVDD
J CLKT3
K CLKC3
2
CLKT0
GND
GND
VDDQ
VDDQ
VDDQ
VDDQ
GND
GND
CLKC4
52-Ball BGA
Top View
3
CLKC0
GND
NB
VDDQ
NB
NB
VDDQ
NB
GND
CLKT4
4
CLKC5
GND
NB
VDDQ
NB
NB
VDDQ
NB
GND
CLKT9
5
CLKT5
GND
GND
OS
VDDQ
OE
VDDQ
GND
GND
CLKC9
6
CLKT6
CLKC6
CLKC7
CLKT7
FB_INT
FB_INC
FB_OUTC
FB_OUTT
CLKT8
CLKC8
OE
OS
AVDD
(1)
LD or OE
POWER
DOWN
AND _{LD, OS, or OE}
TEST
MODE
LOGIC
PLL BYPASS
LD
CLK_INT
CLK_INC
10KΩ - 100KΩ
PLL
FBIN_INT
FBIN_INC
NOTE:
1. The Logic Detect (LD) powers down the device
when a logic LOW is applied to both CLK_INT and
CLK_INC.
1177C—05/23/07
CLKT0
CLKC0
CLKT1
CLKC1
CLKT2
CLKC2
CLKT3
CLKC3
CLKT4
CLKC4
CLKT5
CLKC5
CLKT6
CLKC6
CLKT7
CLKC7
CLKT8
CLKC8
CLKT9
CLKC9
FBOUTT
FBOUTC
VDDQ
1
CLKC2
2
CLKT2
3
CLK_INT
4
CLK_INC
5
VDDQ
6
AGND
7
AVDD
8
VDDQ
9
GND
10
40-Pin MLF
30
CLKC7
29
CLKT7
28
VDDQ
27
FB_INT
26
FB_INC
25
FBOUTC
24
FBOUTT
23
VDDQ
22
OE
21
OS
ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.
ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.