参数资料
型号: SI5320-H-BL
厂商: Silicon Laboratories Inc
文件页数: 20/34页
文件大小: 0K
描述: IC CLOCK MULT SONET/SDH 63-PBGA
标准包装: 260
系列: DSPLL®
类型: 时钟乘法器
PLL:
输入: LVTTL
输出: CML
电路数: 1
比率 - 输入:输出: 1:1
差分 - 输入:输出: 是/是
频率 - 最大: 693MHz
除法器/乘法器: 是/是
电源电压: 3.135 V ~ 3.465 V
工作温度: -20°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 63-LBGA
供应商设备封装: 63-PBGA(9x9)
包装: 托盘
Si5320
Rev. 2.5
27
B1
C1
BWSEL[0]
BWSEL[1]
I*
LVTTL
Bandwidth Select.
BWSEL[1:0] pins set the bandwidth of the loop filter
within the DSPLL to 6400, 3200, 1600, or 800 Hz as
indicated below.
00 = 3200 Hz
01 = 1600 Hz
10 = 800 Hz
11 = 6400 Hz
Note:
The loop filter bandwidth will be twice the value
indicated when DBLBW is set high.
E8
CAL_ACTV
O
LVTTL
Calibration Mode Active.
This output is driven high during the DSPLL self-cal-
ibration and the subsequent initial lock acquisition
period.
H4
VALTIME
I*
LVTTL
Clock Validation Time for LOS.
VALTIME sets the clock validation times for recovery
from an LOS alarm condition. When VALTIME is
high, the validation time is approximately
13 seconds. When VALTIME is low, the validation
time is approximately 100 ms.
B2, B3, B6,
B7, C8
RSVD_GND
LVTTL
Reserved—GND.
This pin must be tied to GND for normal operation.
A4–8, B5, B8
RSVD_NC
LVTTL
Reserved—No Connect.
This pin must be left unconnected for normal
operation.
C2
VSEL33
I*
LVTTL
Select 3.3 V VDD Supply.
This is an enable pin for the internal regulator. To
enable the regulator, connect this pin to the VDD33
pins.
D3–D5,
E3–E5
VDD33
VDD
Supply
3.3 V Supply.
3.3 V power is applied to the VDD33 pins. Typical
supply bypassing/decoupling for this configuration is
indicated in the typical application diagram for 3.3 V
supply operation.
D6, D7, E6,
E7, F3–F7
VDD25
VDD
Supply
2.5 V Supply.
These pins provide a means of connecting the
compensation network for the on-chip regulator.
Table 11. Si5320 Pin Descriptions (Continued)
Pin #
Pin Name
I/O
Signal Level
Description
*Note:
The LVTLL inputs on the Si5320 device have an internal pulldown mechanism that causes these inputs to default to a
logic low state if the input is not driven from an external source.
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