参数资料
型号: SI5324A-C-GM
厂商: Silicon Laboratories Inc
文件页数: 57/72页
文件大小: 0K
描述: IC CLOCK MULT VARI FREQ 36VQFN
标准包装: 490
系列: DSPLL®
类型: 时钟/频率倍增器,抖动衰减器,多路复用器
PLL:
主要目的: 以太网(WAN),SONET/SDH/STM,视频
输入: 时钟
输出: CML,CMOS,LVDS,LVPECL
电路数: 1
比率 - 输入:输出: 2:2
差分 - 输入:输出: 是/是
频率 - 最大: 1.42GHz
电源电压: 1.71 V ~ 3.63 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 36-VFQFN 裸露焊盘
供应商设备封装: 36-QFN(6x6)
包装: 托盘
Si5324
60
Rev. 1.1
6. Pin Descriptions
Pin #
Pin Name I/O Signal Level
Description
1
RST
ILVCMOS
External Reset.
Active low input that performs external hardware reset of device.
Resets all internal logic to a known state and forces the device reg-
isters to their default value. Clock outputs are disabled during reset.
The part must be programmed after a reset or power-on to get a
clock output. See Family Reference Manual for details.
This pin has a weak pull-up.
2, 9, 14,
30, 33
NC
No Connection.
Leave floating. Make no external connections to this pin for normal
operation.
3
INT_C1B
O
LVCMOS
Interrupt/CKIN1 Invalid Indicator.
This pin functions as a device interrupt output or an alarm output for
CKIN1. If used as an interrupt output,
INT_PIN must be set to 1. The
pin functions as a maskable interrupt output with active polarity con-
trolled by the
INT_POL register bit.
If used as an alarm output, the pin functions as a LOS (and option-
ally FOS) alarm indicator for CKIN1. Set
CK1_BAD_PIN = 1 and
INT_PIN =0.
0 = CKIN1 present.
1 = LOS (FOS) on CKIN1.
The active polarity is controlled by
CK_BAD_POL. If no function is
selected, the pin tristates.
Note: Internal register names are indicated by underlined italics, e.g., INT_PIN. See Si5324 Register Map.
1
2
3
29
30
31
32
33
34
35
36
20
21
22
23
24
25
26
27
10 11 12 13 14 15 16 17
4
5
6
7
8
NC
RST
C2B
INT_C1B
GND
VDD
XA
VD
D
RATE0
CK
IN
2+
CK
IN
2–
NC
RATE1
CK
IN
1+
CK
IN
1–
CS_CA
SCL
SDA_SDO
A1
A2_SS
SDI
CKOU
T1–
NC
GND
VDD
NC
CKOU
T
2–
CKOU
T
2+
CM
OD
E
GND
Pad
A0
GND
9
18
19
28
XB
LO
L
GND
CK
O
U
T1+
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