參數(shù)資料
型號(hào): SI5315A-C-GMR
廠商: Silicon Laboratories Inc
文件頁(yè)數(shù): 38/54頁(yè)
文件大?。?/td> 0K
描述: IC CLK MULT 8KHZ-644.53MHZ 36QFN
應(yīng)用說(shuō)明: SI5315/17 Crystal Selection AppNote
標(biāo)準(zhǔn)包裝: 250
系列: DSPLL®
類(lèi)型: 時(shí)鐘/頻率倍增器,抖動(dòng)衰減器,多路復(fù)用器
PLL: 無(wú)
主要目的: 以太網(wǎng),SONET/SDH/PDH,電信
輸入: CML,CMOS,LVDS,LVPECL
輸出: CML,CMOS,LVDS,LVPECL
電路數(shù): 1
比率 - 輸入:輸出: 2:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 644.53MHz
電源電壓: 1.71 V ~ 3.63 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 36-VFQFN 裸露焊盤(pán)
供應(yīng)商設(shè)備封裝: 36-QFN(6x6)
包裝: 帶卷 (TR)
Si5315
Rev. 1.0
43
10. Pin Descriptions: Si5315
Pin assignments are preliminary and subject to change.
Table 19. Si5315 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. Clock out-
puts are tristated during reset. After rising edge of RST sig-
nal, the Si5315 will perform an internal self-calibration when
a valid input signal is present.
This pin has a weak pull-up.
2
FRQTBL
I
3-Level
Frequency Table Select.
Selects frequency table. (Table 9 on page 20.)
This pin has a weak pull-up and weak pull-down and defaults
to M.
Some designs may require an external resistor voltage
divider when driven by an active device that will tri-state.
3LOS1
O
LVCMOS
CKIN1 Loss of Signal.
Active high loss-of-signal indicator for CKIN1. Once trig-
gered, the alarm will remain active until CKIN1 is validated.
0 = CKIN1 present
1 = LOS on CKIN1
4LOS2
O
LVCMOS
CKIN2 Loss of Signal.
Active high loss-of-signal indicator for CKIN2. Once trig-
gered, the alarm will remain active until CKIN2 is validated.
0 = CKIN2 present
1 = LOS on CKIN2
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
FRQTBL
AUTOSEL
RST
LOS2
LOS1
GND
VDD
XA
VD
D
XT
A
L
/C
LO
CK
CKI
N
2
+
CK
IN
2
DB
L2_B
Y
GND
CK
IN
1
+
CKI
N
1
CS_CA
BWSEL0
BWSEL1
FRQSEL1
FRQSEL2
FRQSEL3
CK
OUT1–
SFOU
T1
GN
D
VD
D
SFOU
T0
CKOU
T
2
CKOU
T
2
+
NC
GND
Pad
FRQSEL0
GND
9
18
19
28
XB
LO
L
GND
CKO
U
T1+
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