ICS8752 [ICSI]

LOW SKEW, 1-TO-8 LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER; 低偏移, 1至8 LVCMOS时钟乘法器/零延迟缓冲器
ICS8752
型号: ICS8752
厂家: INTEGRATED CIRCUIT SOLUTION INC    INTEGRATED CIRCUIT SOLUTION INC
描述:

LOW SKEW, 1-TO-8 LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER
低偏移, 1至8 LVCMOS时钟乘法器/零延迟缓冲器

时钟
文件: 总15页 (文件大小:140K)
中文:  中文翻译
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ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
GENERAL DESCRIPTION  
FEATURES  
The ICS8752 is a low voltage, low skew  
Fully integrated PLL  
,&6  
LVCMOS clock generator and a member of  
8 LVCMOS outputs, 7typical output impedance  
HiPerClockS™  
the HiPerClockS™ family of High Performance  
Clock Solutions from ICS. With output fre-  
quencies up to 240MHz, the ICS8752 is targeted  
Selectable LVCMOS CLK0 or CLK1 inputs for  
redundant clock applications  
for high performance clock applications. Along with a fully in-  
tegrated PLL, the ICS8752 contains frequency configurable  
outputs and an external feedback input for regenerating clocks  
with “zero delay”.  
Input/Output frequency range: 18.33MHz to 240MHz  
at VCC = 3.3V ± 5%  
VCO range: 220MHz to 480MHz  
Dual clock inputs, CLK0 and CLK1, support redundant clock  
applications. The CLK_SEL input determines which reference  
clock is used. The output divider values of Bank A and B are  
controlled by the DIV_SELA0:1, and DIV_SELB0:1, respectively.  
External feedback for “zero delay” clock regeneration  
Cycle-to-cycle jitter: 75ps (maximum),  
(all outputs are the same frequency)  
Output skew: 100ps (maximum)  
For test and system debug purposes, the PLL_SEL input  
allows the PLL to be bypassed. When HIGH, the MR/nOE  
input resets the internal dividers and forces the outputs to  
the high impedance state.  
Bank skew: 55ps (maximum)  
3.3V or 2.5V supply voltage  
0°C to 70°C ambient operating temperature  
Industrial temperature information available upon request  
Functionally compatible with MPC952 in some applications  
The low impedance LVCMOS outputs of the ICS8752 are  
designed to drive terminated transmission lines. The effec-  
tive fanout of each output can be doubled by utilizing the  
ability of each output to drive two series terminated trans-  
mission lines.  
BLOCK DIAGRAM  
PIN ASSIGNMENT  
PLL_SEL  
PLL  
FB_IN  
PHASE  
÷2  
÷4  
00  
01  
10  
11  
VCO  
CLK0  
0
32 31 30 29 28 27 26 25  
DETECTOR  
1
0
CLK1  
QA0  
QA1  
QA2  
QA3  
1
÷6  
DIV_SELB0  
DIV_SELB1  
DIV_SELA0  
DIV_SELA1  
MR/nOE  
CLK0  
1
2
3
4
5
6
7
8
24  
23  
22  
21  
20  
19  
18  
17  
GND  
QB1  
QB0  
VDDO  
VDDO  
QA3  
QA2  
GND  
CLK_SEL  
÷8  
÷12  
DIV_SELA1  
DIV_SELA0  
ICS8752  
00  
01  
10  
11  
QB0  
QB1  
QB2  
QB3  
GND  
FB_IN  
DIV_SELB1  
DIV_SELB0  
9
10 11 12 13 14 15 16  
32-Lead LQFP  
7mm x 7mm x 1.4mm package body  
Y package  
MR/nOE  
Top View  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
1
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 1. PIN DESCRIPTIONS  
Number  
Name  
Type  
Pulldown  
Description  
DIV_SELB0,  
DIV_SELB1  
DIV_SELA0,  
DIV_SELA1  
Determines output divider values for Bank B as described in Table 3.  
LVCMOS / LVTTL interface levels.  
Determines output divider values for Bank A as described in Table 3.  
LVCMOS / LVTTL interface levels.  
1, 2  
Input  
Input  
3, 4  
Pulldown  
Active LOW Master Reset and output enable. When logic LOW, the  
5
6
MR/nOE  
Input  
Pulldown internal dividers are reset. When HIGH, the Master Reset is disabled.  
LVCMOS / LVTTL interface levels.  
CLK0  
GND  
Input  
Pulldown Clock input. LVCMOS / LVTTL interface levels.  
7, 13, 17,  
24, 28, 29  
Power  
Power supply ground.  
Feedback input to phase detector for generating clocks with "zero delay".  
LVCMOS / LVTTL interface levels.  
Clock select input. Selects between CLK0 or CLK1 as phase detector  
Pulldown reference. When LOW, selects CLK0. When HIGH, selects CLK1.  
LVCMOS / LVTTL interface levels.  
8
FB_IN  
Input  
Input  
Pulldown  
9
CLK_SEL  
10  
11, 32  
12  
VDDA  
VDD  
Power  
Power  
Input  
Analog supply pin.  
Positive supply pins.  
CLK1  
Pulldown Clock input. LVCMOS / LVTTL interface levels.  
14, 15,  
18, 19  
16, 20,  
21, 25  
22, 23,  
26, 27  
QA0, QA1,  
QA2, QA3  
Bank A clock outputs. 7typical output impedance.  
LVCMOS / LVTTL interface levels.  
Output  
Power  
VDDO  
Output supply pins.  
QB0, QB1,  
QB2, QB3  
Bank B clock outputs. 7typical output impedance.  
LVCMOS / LVTTL interface levels.  
Output  
30  
nc  
Unused  
No connect.  
Selects between the PLL and CLK0 or CLK1 as the input to the dividers.  
31  
PLL_SEL  
Input  
Pullup  
When HIGH selects PLL. When LOW selects CLK0 or CLK1.  
LVCMOS / LVTTL interface levels.  
NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.  
TABLE 2. PIN CHARACTERISTICS  
Symbol  
CIN  
Parameter  
Test Conditions  
Minimum Typical Maximum Units  
Input Capacitance  
Input Pullup Resistor  
Input Pulldown Resistor  
4
pF  
K  
KΩ  
RPULLUP  
RPULLDOWN  
51  
51  
Power Dissipation Capacitance  
(per output)  
CPD  
V
DDA, VDD, VDDO = 3.465V  
23  
7
pF  
ROUT  
Output Impedance  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
2
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 3. CONTROL INPUT FUNCTION TABLE  
Inputs  
DIV_  
SELA1  
Outputs  
DIV_  
SELA0  
DIV_  
SELB1  
DIV_  
SELB0  
MR/nOE PLL_SEL CLK_SEL  
QAx  
QBx  
1
0
0
0
0
0
0
0
0
0
0
0
0
X
1
1
1
1
0
0
0
0
0
0
0
0
X
X
X
X
X
0
0
0
0
1
1
1
1
X
X
0
1
0
1
0
1
0
1
0
1
0
1
X
0
0
1
1
0
0
1
1
0
0
1
1
X
0
1
0
1
0
1
0
1
0
1
0
1
Hi-Z  
Hi-Z  
0
0
1
1
0
0
1
1
0
0
1
1
fVCO/2  
fVCO/4  
fVCO/6  
fVCO/8  
fCLK0/2  
fCLK0/4  
fCLK0/6  
fCLK0/8  
fCLK1/2  
fCLK1/4  
fCLK1/6  
fCLK1/8  
fVCO/4  
fVCO/6  
fVCO/8  
fVCO/12  
fCLK0/4  
fCLK0/6  
fCLK0/8  
fCLK0/12  
fCLK1/4  
fCLK1/6  
fCLK1/8  
fCLK1/12  
NOTE: For normal operation, MR/nOE is LOW. When MR/nOE is HIGH, all ouputs are disabled.  
TABLE 4A. QA OUTPUT FREQUENCY W/FB_IN = QB  
Inputs  
Outputs  
CLK0, CLK1 (MHz)  
(NOTE 1)  
QB Output  
Divider Mode  
(NOTE 2)  
DIV_  
SELB1 SELB0  
DIV_  
DIV_  
DIV_  
QA Output  
QA Multiplier  
(NOTE 2)  
FB_IN  
SELA1 SELA0 Divider Mode  
Minimum Maximum  
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
÷2  
÷4  
÷6  
÷8  
÷2  
÷4  
÷6  
÷8  
÷2  
÷4  
÷6  
÷8  
÷2  
÷4  
÷6  
÷8  
2
1
QB  
0
0
1
1
0
1
0
1
÷4  
÷6  
55  
120  
80  
0.667  
0.5  
3
1.5  
1
QB  
QB  
QB  
36.66  
27.5  
0.75  
4
2
÷8  
60  
1.33  
1
6
3
÷12  
18.33  
40  
2
1.5  
NOTE 1: VCO frequency range is 220MHz to 480MHz.  
NOTE 2: QA output frequency equal to CLKx frequency times the multiplier;  
QB output frequency equal to CLKx.  
8752CY  
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REV. A AUGUST 19, 2002  
3
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 4B. QB OUTPUT FREQUENCY W/FB_IN = QA  
Inputs  
CLK0, CLK1 (MHz)  
Outputs  
QA Output  
Divider Mode  
(NOTE 2)  
QB Output  
Divider Mode  
DIV_  
SELA1 SELA0  
DIV_  
DIV_  
SELB1  
DIV_  
SELB0  
QB Multiplier  
(NOTE 2)  
(NOTE 1)  
FB_IN  
Minimum Maximum  
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
1
1
0
1
÷4  
÷6  
0.5  
0.333  
0.25  
0.167  
1
QA  
0
0
110  
240  
(NOTE 3)  
÷2  
÷8  
÷12  
÷4  
÷6  
0.667  
0.5  
QA  
QA  
QA  
0
1
1
1
0
1
÷4  
÷6  
÷8  
55  
120  
80  
÷8  
÷12  
÷4  
0.333  
1.5  
÷6  
1
36.66  
27.5  
÷8  
0.75  
0.5  
÷12  
÷4  
2
÷6  
1.333  
1
60  
÷8  
÷12  
0.667  
NOTE 1: VCO frequency range is 220MHz to 480MHz.  
NOTE 2: QB output frequency equal to CLKx frequency times the multiplier;  
QA output frequency equal to CLKx.  
NOTE 3: Maximum frequency of 240MHz valid for VCC = 3.3V ± 5% only.  
8752CY  
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REV. A AUGUST 19, 2002  
4
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
ABSOLUTE MAXIMUM RATINGS  
Supply Voltage, VDDx  
Inputs, VI  
4.6V  
-0.5V to VDD + 0.5V  
-0.5V to VDDO + 0.5V  
Outputs, VO  
Package Thermal Impedance, θJA  
Storage Temperature, TSTG  
47.9°C/W (0 lfpm)  
-65°C to 150°C  
Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These ratings  
are stress specifications only. Functional operation of product at these conditions or any conditions beyond those listed in the  
DC Characteristics or AC Characteristics is not implied. Exposure to absolute maximum rating conditions for extended peri-  
ods may affect product reliability.  
TABLE 5A. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDA = VDDO = 3.3V±5%, TA = 0°C TO 70°C  
Symbol Parameter  
Test Conditions  
Minimum Typical Maximum Units  
VDD  
VDDA  
VDDO  
IDD  
Positive Supply Voltage  
3.135  
3.135  
3.135  
3.3  
3.3  
3.3  
3.465  
3.465  
3.465  
105  
V
V
Analog Supply Voltage  
Output Supply Voltage  
Positive Supply Current  
Analog Supply Current  
Output Supply Current  
V
mA  
mA  
mA  
IDDA  
IDDO  
15  
20  
TABLE 5B. LVCMOS/LVTTL DC CHARACTERISTICS, VDD = VDDA = VDDO = 3.3V±5%, TA = 0°C TO 70°C  
Symbol Parameter  
Test Conditions  
Minimum Typical Maximum Units  
VIH  
VIL  
Input High Voltage  
2
VDD + 0.3  
0.8  
V
V
Input Low Voltage  
-0.3  
CLK0, CLK1,  
FB_IN, CLK_SEL,  
DIV_SELA1, DIV_SELA0,  
DIV_SELB1, DIV_SELB0,  
MR/nOE  
VDD = VIN = 3.465V  
150  
5
µA  
µA  
µA  
IIH  
Input High Current  
PLL_SEL  
VDD = VIN = 3.465V  
CLK0, CLK1,  
FB_IN, CLK_SEL,  
DIV_SELA1, DIV_SELA0,  
DIV_SELB1, DIV_SELB0,  
MR/nOE  
VDD = 3.465V,  
-5  
V
IN = 0V  
IIL  
Input Low Current  
VDD = 3.465V,  
VIN = 0V  
PLL_SEL  
-150  
2.4  
µA  
VOH  
VOL  
Output High Voltage; NOTE 1  
Output Low Voltage; NOTE 1  
V
V
0.5  
NOTE 1: Outputs terminated with 50to VDDO/2. See Parameter Measurement Information Section,  
"3.3V Output Load Test Circuit".  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
5
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 6A. PLL INPUT REFERENCE CHARACTERISTICS, VDD = VDDA = VDDO = 3.3V±5%, TA = 0°C TO 70°C  
Symbol Parameter Test Conditions Minimum Typical Maximum Units  
Input Reference Frequency  
fREF  
NOTE: Input reference frequency is limited by  
the divider selection and the VCO lock range.  
20  
240  
MHz  
TABLE 7A. AC CHARACTERISTICS, VDD = VDDA = VDDO = 3.3V±5%, TA = 0°C TO 70°C  
Symbol Parameter  
Test Conditions  
Minimum Typical Maximum Units  
÷2  
÷4  
110  
55  
240  
120  
80  
MHz  
MHz  
MHz  
MHz  
MHz  
MHz  
fOUT  
Output Frequency (PLL Mode)  
÷6  
36.67  
27.5  
18.33  
220  
÷8  
60  
÷12  
40  
fVCO  
PLL VCO Lock Range  
480  
fVCO = 400MHz,  
Feedback ÷ 8  
t(Ø)  
Static Phase Offset; NOTE 1  
-30  
70  
170  
55  
ps  
ps  
Measured on rising edge  
at VDDO/2  
tsk(b)  
tsk(o)  
Bank Skew; NOTE 2, 4  
Output Skew; NOTE 3, 4  
Measured on rising edge  
at VDDO/2  
100  
400  
75  
ps  
ps  
ps  
Different Frequencies  
on Different Banks  
All Outputs at  
Cycle-to-Cycle  
Jitter; NOTE 4  
tjit(cc)  
Same Frequency  
tL  
PLL Lock Time  
Output Rise Time  
Output Fall Time  
1
mS  
ps  
ps  
%
tR  
20% to 80%  
20% to 80%  
400  
400  
47  
950  
950  
53  
tF  
odc  
Output Duty Cycle  
50  
All parameters measured at fMAX unless noted otherwise.  
NOTE 1: Defined as the time difference between the input clock and the average feedback input signal,  
when the PLL is locked and the input reference frequency is stable.  
NOTE 2: Defined as skew within a bank of outputs at the same supply voltages and with equal load conditions.  
NOTE 3: Defined as skew between outputs at the same supply voltage and with equal load conditions.  
Measured at VDDO/2.  
NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
6
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 5C. POWER SUPPLY DC CHARACTERISTICS, VDD = VDDA = VDDO = 2.5V±5%, TA = 0°C TO 70°C  
Symbol Parameter Test Conditions Minimum Typical Maximum Units  
VDD  
VDDA  
VDDO  
IDD  
Positive Supply Voltage  
2.375  
2.375  
2.375  
2.5  
2.5  
2.5  
2.625  
2.625  
2.625  
100  
V
V
Analog Supply Voltage  
Output Supply Voltage  
Positive Supply Current  
Analog Supply Current  
Output Supply Current  
V
mA  
mA  
mA  
IDDA  
IDDO  
15  
20  
TABLE 5D. LVCMOS/LVTTL DC CHARACTERISTICS, VDD = VDDA = VDDO = 2.5V±5%, TA = 0°C TO 70°C  
Symbol Parameter  
Test Conditions  
Minimum Typical Maximum Units  
VIH  
VIL  
Input High Voltage  
2
VDD + 0.3  
0.8  
V
V
Input Low Voltage  
-0.3  
CLK0, CLK1,  
FB_IN, CLK_SEL,  
DIV_SELA1, DIV_SELA0,  
DIV_SELB1, DIV_SELB0,  
MR/nOE  
VDD = VIN = 2.625V  
150  
5
µA  
µA  
µA  
IIH  
Input High Current  
PLL_SEL  
VDD = VIN = 2.625V  
CLK0, CLK1,  
FB_IN, CLK_SEL,  
DIV_SELA1, DIV_SELA0,  
DIV_SELB1, DIV_SELB0,  
MR/nOE  
VDD = 2.625V,  
-5  
V
IN = 0V  
IIL  
Input Low Current  
VDD = 2.625V,  
VIN = 0V  
PLL_SEL  
-150  
1.8  
µA  
VOH  
VOL  
Output High Voltage; NOTE 1  
Output Low Voltage; NOTE 1  
V
V
0.5  
NOTE 1: Outputs terminated with 50to VDDO/2. See Parameter Measurement Information Section,  
"2.5 Output Load Test Circuit".  
TABLE 6B. PLL INPUT REFERENCE CHARACTERISTICS, VDD = VDDA = VDDO = 2.5V±5%, TA = 0°C TO 70°C  
Symbol Parameter  
Input Reference Frequency  
Test Conditions  
Minimum Typical Maximum Units  
20 120 MHz  
fREF  
NOTE: Input reference frequency is limited by  
the divider selection and the VCO lock range.  
8752CY  
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REV. A AUGUST 19, 2002  
7
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 7B. AC CHARACTERISTICS, VDD = VDDA = VDDO = 2.5V±5%, TA = 0°C TO 70°C  
Symbol Parameter  
Test Conditions  
Minimum Typical Maximum Units  
÷2  
÷4  
110  
55  
240  
120  
80  
MHz  
MHz  
MHz  
MHz  
MHz  
MHz  
fOUT  
Output Frequency (PLL Mode)  
÷6  
36.67  
27.5  
18.33  
220  
÷8  
60  
÷12  
40  
fVCO  
PLL VCO Lock Range  
480  
fVCO = 400MHz  
Feedback ÷ 8  
Measured on rising edge  
at VDDO/2  
t(Ø)  
Static Phase Offset; NOTE 1  
-90  
50  
190  
55  
ps  
ps  
ps  
ps  
ps  
tsk(b)  
tsk(o)  
Bank Skew; NOTE 2, 4  
Output Skew; NOTE 3, 4  
Measured on rising edge  
at VDDO/2  
90  
Different Frequencies  
400  
75  
on Different Banks  
All Outputs at  
Cycle-to-Cycle  
Jitter; NOTE 4  
tjit(cc)  
Same Frequency  
tL  
PLL Lock Time  
Output Rise Time  
Output Fall Time  
1
mS  
ps  
ps  
%
tR  
20% to 80%  
20% to 80%  
400  
400  
45  
950  
950  
55  
tF  
odc  
Output Duty Cycle  
50  
All parameters measured at fMAX unless noted otherwise.  
NOTE 1: Defined as the time difference between the input clock and the average feedback input signal,  
when the PLL is locked and the input reference frequency is stable.  
NOTE 2: Defined as skew within a bank of outputs at the same supply voltages and with equal load conditions.  
NOTE 3: Defined as skew between outputs at the same supply voltage and with equal load conditions.  
Measured at VDDO/2.  
NOTE 4: This parameter is defined in accordance with JEDEC Standard 65.  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
8
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
PARAMETER MEASUREMENT INFORMATION  
1.65V±5%  
SCOPE  
VDD  
VDDA  
VDDO  
,
,
Qx  
LVCMOS  
GND  
-1.65V±5%  
3.3V OUTPUT LOAD TEST CIRCUIT  
1.25V±5%  
SCOPE  
VDD  
VDDA  
VDDO  
,
,
Qx  
LVCMOS  
GND  
-1.25V±5%  
2.5V OUTPUT LOAD TEST CIRCUIT  
8752CY  
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REV. A AUGUST 19, 2002  
9
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
VDDO  
2
Qx  
Qy  
VDDO  
2
tsk(o)  
OUTPUT SKEW  
VDDO  
VDDO  
2
VDDO  
2
2
QAx, QBx  
tcycle n+1  
tcycle n  
tjit(cc) = tcycle n tcycle n+1  
1000 Cycles  
Cycle-to-Cycle Jitter  
VDD  
/2  
CLK0, CLK1  
FB_IN  
VDD  
/2  
t(Ø)  
STATIC PHASE OFFSET  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
10  
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
80%  
80%  
20%  
20%  
Clock Outputs  
tR  
tF  
OUTPUT RISE AND FALL TIME  
VDDO  
2
QAx, QBx  
Pulse Width  
tPERIOD  
odc & tPERIOD  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
11  
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
RELIABILITY INFORMATION  
TABLE 7. θJAVS. AIR FLOW TABLE  
qJA by Velocity (Linear Feet per Minute)  
0
200  
500  
Single-Layer PCB, JEDEC Standard Test Boards  
Multi-Layer PCB, JEDEC Standard Test Boards  
67.8°C/W  
55.9°C/W  
50.1°C/W  
47.9°C/W  
42.1°C/W  
39.4°C/W  
NOTE: Most modern PCB designs use multi-layered boards. The data in the second row pertains to most designs.  
TRANSISTOR COUNT  
The transistor count for ICS8752 is: 1546  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
12  
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
PACKAGE OUTLINE - Y SUFFIX  
TABLE 8. PACKAGE DIMENSIONS  
JEDEC VARIATION  
ALL DIMENSIONS IN MILLIMETERS  
BBA  
SYMBOL  
MINIMUM  
NOMINAL  
MAXIMUM  
N
A
32  
--  
--  
--  
1.60  
0.15  
1.45  
0.45  
0.20  
A1  
A2  
b
0.05  
1.35  
0.30  
0.09  
1.40  
0.37  
c
--  
D
9.00 BASIC  
7.00 BASIC  
5.60 Ref.  
9.00 BASIC  
7.00 BASIC  
5.60 Ref.  
0.80 BASIC  
0.60  
D1  
D2  
E
E1  
E2  
e
L
0.45  
0.75  
q
--  
0
°
7°  
ccc  
--  
--  
0.10  
Reference Document: JEDEC Publication 95, MS-026  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
13  
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
TABLE 9. ORDERING INFORMATION  
Part/Order Number  
ICS8752CY  
Marking  
Package  
32 Lead LQFP  
Count  
250 per tray  
1000  
Temperature  
0°C to 70°C  
0°C to 70°C  
ICS8752CY  
ICS8752CY  
ICS8752CYT  
32 Lead LQFP on Tape and Reel  
While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) assumes no responsibility for either its use or  
for infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied. This product is intended for use in normal  
commercial applications. Any other applications such as those requiring extended temperature range, high reliability, or other extraordinary environmental requirements are not  
recommended without additional processing by ICS. ICS reserves the right to change any circuitry or specifications without notice. ICS does not authorize or warrant any ICS product for  
use in life support devices or critical medical instruments.  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
14  
ICS8752  
LOW SKEW, 1-TO-8  
LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER  
Integrated  
Circuit  
Systems, Incꢀ  
REVISION HISTORY SHEET  
Rev  
Table  
T1  
Page  
Description of Change  
Date  
A
2
Pin Descriptions Table. Revised MR/nOE description.  
8/19/02  
8752CY  
www.icst.com/products/hiperclocks.html  
REV. A AUGUST 19, 2002  
15  

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