參數(shù)資料
型號: SI5023-D-GM
廠商: Silicon Laboratories Inc
文件頁數(shù): 15/28頁
文件大?。?/td> 0K
描述: IC CLOCK/DATA RECVRY W/AMP 28MLP
標(biāo)準(zhǔn)包裝: 60
系列: DSPLL®
類型: 時(shí)鐘和數(shù)據(jù)恢復(fù)(CDR)
PLL:
主要目的: 以太網(wǎng),SONET/SDH,ATM 應(yīng)用
輸入: 時(shí)鐘
輸出: CML
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 2.7GHz
電源電壓: 3.135 V ~ 3.465 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 28-VFQFN 裸露焊盤
供應(yīng)商設(shè)備封裝: 28-QFN(5x5)
包裝: 管件
其它名稱: 336-1276
Si5023
22
Rev. 1.3
5. Pin Descriptions: Si5023
Figure 21. Si5023 Pin Configuration
Table 9. Si5023 Pin Descriptions
Pin #
Pin Name
I/O
Signal Level
Description
1,2
RATESEL0,
RATESEL1
ILVTTL
Data Rate Select.
These pins configure the onboard PLL for clock and
data recovery at one of four user selectable data
rates. See Table 7 for configuration settings.
Notes:
1. These inputs have weak internal pullups.
2. After any change in RATESEL, the device must be
reset.
3LOS_LVL
I
LOS Level Control.
The LOS threshold is set by the input voltage level
applied to this pin. Figure 6 on page 14 shows the
input setting to output threshold mapping.
LOS is disabled when the voltage applied is less
than 1 V.
4
SLICE_LVL
I
Slicing Level Control.
The slicing threshold level is set by applying a volt-
age to this pin as described in the Slicing Level sec-
tion of the data sheet. If this pin is tied to GND,
slicing level adjustment is disabled, and the slicing
level is set to the midpoint of the differential input
signal on DIN. Slicing level becomes active when
the voltage applied to the pin is greater than
500 mV.
1
RATESEL0
GND
Pad
Top View
2
3
4
5
6
7
21
20
19
18
17
16
15
14
13
12
11
10
9
8
22
23
24
25
26
27
28
RATESEL1
LOS_LVL
SLICE_LVL
REFCLK+
REFCLK-
LOL
VDD
REXT
RESET/CAL
VDD
DOUT+
DOUT-
GND
BE
R
M
O
N
BE
R
_
AL
M
BE
R
_
L
VL
VD
D
C
L
K
D
SBL
CL
KOUT+
CL
KOUT
-
LT
R
LO
S
DS
Q
L
C
H
VD
D
DI
N+
DI
N
-
VD
D
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