参数资料
型号: ICS87973DYI-147LF
厂商: IDT, Integrated Device Technology Inc
文件页数: 14/19页
文件大小: 0K
描述: IC CLK MULT/ZD BUFFER 52TQFP
标准包装: 160
系列: HiPerClockS™
类型: *
PLL: 带旁路
输入: HCSL,LVCMOS,LVDS,LVHSTL,LVPECL,LVTTL,SSTL
输出: LVCMOS,LVTTL
电路数: 1
比率 - 输入:输出: 3:12
差分 - 输入:输出: 是/无
频率 - 最大: 150MHz
除法器/乘法器: 是/无
电源电压: 3.135 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 52-LQFP
供应商设备封装: 52-TQFP(10x10)
包装: 托盘
ICS87973I-147
LOW SKEW, 1-TO-12, LVCMOS/LVTTL CLOCK MULTIPLIER/ZERO DELAY BUFFER
IDT / ICS LVCMOS CLOCK MULTIPLIER/ZERO DELAY BUFFER
4
ICS87973DYI-147 REV. A DECEMBER 9, 2008
Table 1. Pin Descriptions
NOTE: Pullup refers to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Number
Name
Type
Description
1
GNDI
Power
Power supply ground.
2
nMR/OE
Input
Pullup
Master reset and output enable. When HIGH, enables the outputs.
When LOW, resets the outputs in a high-impedance state and resets output divide
circuitry. Enables and disables all outputs. LVCMOS / LVTTL interface levels.
3
FRZ_CLK
Input
Pullup
Clock input for freeze circuitry. LVCMOS / LVTTL interface levels.
4
FRZ_DATA
Input
Pullup
Configuration data input for freeze circuitry. LVCMOS / LVTTL interface levels.
5,
26,
27
FSEL_FB2,
FSEL_FB1,
FSEL_FB0
Input
Pullup
Select pins control Feedback Divide value. LVCMOS / LVTTL interface levels.
See Table 3B.
6
PLL_SEL
Input
Pullup
Selects between the PLL and reference clocks as the input to the output dividers.
When HIGH, selects PLL. When LOW, bypasses the PLL and reference clocks.
LVCMOS / LVTTL interface levels.
7
REF_SEL
Input
Pullup
Selects between CLK0 or CLK1 and CLK, nCLK inputs. When LOW, selects CLK0
or CLK1. When HIGH, CLK, nCLK inputs. LVCMOS / LVTTL interface levels.
8
CLK_SEL
Input
Pullup
Clock select input. When LOW, selects CLK0. When HIGH, selects CLK1.
LVCMOS / LVTTL interface levels.
9, 10
CLK0, CLK1
Input
Pullup
Single-ended reference clock inputs. LVCMOS/LVTTL interface levels.
11
CLK
Input
Pullup
Non-inverting differential clock input.
12
nCLK
Input
Inverting differential clock input. VDD/2 default when left floating.
13
VDDA
Power
Analog supply pin.
14
INV_CLK
Input
Pullup
Inverted clock select for QC2 and QC3 outputs. LVCMOS / LVTTL interface levels.
15, 24, 30,
35, 39, 47,
51
GNDO
Power
Power supply ground.
16, 18,
21, 23
QC3, QC2,
QC1, QC0
Output
Single-ended Bank C clock outputs. LVCMOS/ LVTTL interface levels.
17, 22, 33,
37, 45, 49
VDDO
Power
Output power supply pins.
19,
20
FSEL_C1,
FSEL_C0
Input
Pullup
Select pins for Bank C outputs. LVCMOS / LVTTL interface levels. See Table 3A.
25
QYSNC
Output
Synchronization output for Bank A and Bank C. Refer to Figure 1, Timing Diagrams.
LVCMOS / LVTTL interface levels.
28
VDD
Power
Power supply pin.
29
QFB
Output
Single-ended feedback clock output. LVCMOS / LVTTL interface levels.
31
EXT_FB
Input
Pullup
External feedback. LVCMOS / LVTTL interface levels.
32, 34,
36, 38
QB3, QB2,
QB1, QB0
Output
Single-ended Bank B clock outputs. LVCMOS/ LVTTL interface levels.
40,
41
FSEL_B1,
FSEL_B0
Input
Pullup
Select pins for Bank B outputs. LVCMOS / LVTTL interface levels. See Table 3A.
42,
43
FSEL_A1,
FSEL_A0
Input
Pullup
Select pins for Bank A outputs. LVCMOS / LVTTL interface levels. See Table 3A.
44, 46
48, 50
QA3, QA2,
QA1, QA0
Output
Single-ended Bank A clock outputs. LVCMOS/ LVTTL interface levels.
52
VCO_SEL
Input
Pullup
Selects VCO. When HIGH, selects VCO ÷ 1. When LOW, selects VCO ÷ 2.
LVCMOS / LVTTL interface levels.
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