参数资料
型号: ICS8402AYILF
厂商: IDT, Integrated Device Technology Inc
文件页数: 13/19页
文件大小: 0K
描述: IC FREQ SYNTHESIZER 32-LQFP
标准包装: 250
系列: HiPerClockS™
类型: 频率合成器
PLL: 带旁路
输入: 晶体
输出: LVCMOS,LVTTL
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 无/无
频率 - 最大: 350MHz
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: 32-LQFP
供应商设备封装: 32-TQFP(7x7)
包装: 托盘
其它名称: 8402AYILF
ICS8402I
350MHZ, CRYSTAL-TO-LVCMOS/LVTTL FREQUENCY SYNTHESIZER
IDT / ICS LVCMOS/LVTTL FREQUENCY SYNTHESIZER
3
ICS8402AYI REV. A OCTOBER 16, 2007
Table 1. Pin Descriptions
NOTE: Pullup and Pulldown refer to internal input resistors. See Table 2, Pin Characteristics, for typical values.
Number
Name
Type
Description
1
M5
Input
Pullup
M divider inputs. Data latched on LOW-to-HIGH transition of nP_LOAD input.
LVCMOS/LVTTL interface levels.
2, 3, 4, 28,
29, 30, 31, 32
M6, M7, M8, M0,
M1, M2, M3, M4
Input
Pulldown
5, 6
N0, N1
Input
Pulldown
Determines output divider value as defined in Table 3C, Function Table.
LVCMOS/LVTTL interface levels.
7
nc
Unused
8, 16
GND
Power
No connect.
9
TEST
Output
Test output which is ACTIVE in the serial mode of operation.
Output driven LOW in parallel mode. LVCMOS/LVTTL interface levels.
10
VDD
Power
Core supply pin.
11, 12
OE1, OE0
Input
Pullup
Output enable. When logic HIGH, the outputs are enabled (default).
When logic LOW, the outputs are in Tri-State. See Table 3D,
OE Function Table. LVCMOS / LVTTL interface levels.
13
VDDO
Power
Output supply pin.
14, 15
Q1, Q0
Output
Single-ended clock outputs. LVCMOS/LVTTL interface levels.
17
MR
Input
Pulldown
Active High Master Reset. When logic HIGH, the internal dividers are reset
causing the outputs to go low. When Logic LOW, the internal dividers and the
outputs are enabled. Assertion of MR does not affect loaded M, N, and T
values. LVCMOS/LVTTL interface levels.
18
S_CLOCK
Input
Pulldown
Clocks in serial data present at S_DATA input into the shift register on the
rising edge of S_CLOCK. LVCMOS/LVTTL interface levels.
19
S_DATA
Input
Pulldown
Shift register serial input. Data sampled on the rising edge of S_CLOCK.
LVCMOS/LVTTL interface levels.
20
S_LOAD
Input
Pulldown
Controls transition of data from shift register into the dividers.
LVCMOS/LVTTL interface levels.
21
VDDA
Power
Analog supply pin.
22
XTAL_SEL
Input
Pullup
Selects between crystal oscillator or test inputs as the PLL reference source.
Selects XTAL inputs when HIGH. Selects TEST_CLK when LOW.
LVCMOS/LVTTL interface levels.
23
TEST_CLK
Input
Pulldown
Test clock input. LVCMOS/LVTTL interface levels.
24,
25
XTAL_OUT
XTAL_IN
Input
Crystal oscillator interface. XTAL_IN is the input, XTAL_OUT is the output.
26
nP_LOAD
Input
Pulldown
Parallel load input. Determines when data present at M8:M0 is loaded into M
divider, and when data present at N1:N0 sets the N output divider value.
LVCMOS/LVTTL interface levels.
27
VCO_SEL
Input
Pullup
Determines whether synthesizer is in PLL or bypass mode.
LVCMOS/LVTTL interface levels.
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