hbwhelp@micrel.com or (408) 955-1690 Pin Description" />
參數(shù)資料
型號(hào): SM840002KA
廠商: Micrel Inc
文件頁(yè)數(shù): 3/9頁(yè)
文件大?。?/td> 0K
描述: IC CLK SYNTHESIZER LN 16-TSSOP
產(chǎn)品培訓(xùn)模塊: High Bandwidth Product Overview
標(biāo)準(zhǔn)包裝: 94
系列: ClockWorks™, RotaryWave™
類型: 時(shí)鐘/頻率合成器,多路復(fù)用器
PLL:
主要目的: 以太網(wǎng)
輸入: 晶體
輸出: LVCMOS
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無(wú)/無(wú)
頻率 - 最大: 156.25MHz
電源電壓: 2.375 V ~ 3.465 V
工作溫度: -40°C ~ 75°C
安裝類型: 表面貼裝
封裝/外殼: 16-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 16-TSSOP
包裝: 管件
其它名稱: 576-3769-5
Micrel, Inc.
SM840002
November 2010
3
M9999-110810
hbwhelp@micrel.com or (408) 955-1690
Pin Description
Pin Number
Pin Name
Type
Level
Pin Function
1
F_SEL0
I
Pull-Up
Frequency Select Pin. LVCMOS interface levels.
2
nXTAL_SEL
I
Pull-Down
Selects between XTAL and TEST_CLK Reference Input. When HIGH,
selects TEST_CLK. When LOW, selects XTAL inputs. LVCMOS interface
levels.
3
TEST_CLK
I
Pull-Down
Single-Ended LVCMOS Clock Input.
4
OE
I
Pull-Up
Output Enable. When HIGH, the outputs are active. When LOW, the
outputs are in a high impedance state. LVCMOS interface levels.
5
NC
No Connect.
6
nPLL_SEL
I
Pull-Down
Selects between the VCO reference and the VCO Output. When LOW,
the output is driven from the VCO output. When HIGH, the PLL is
bypassed.
7
VDDA
P
2.5V or 3.3V Output Power Supply. No filter resistor needed.
8
VDD
P
2.5V or 3.3V Output Power Supply.
9
XTAL_OUT
O
12pF Crystal
Crystal Reference Output, no load caps needed.
10
XTAL_IN
I
12pF Crystal
Crystal Reference Input, no load caps needed.
11
VDDO
P
2.5V or 3.3V Output Power Supply.
12
Q1
O
LVCMOS
Single-Ended Output Clock.
13
Q0
O
LVCMOS
Single-Ended Output Clock.
14
GND
P
Ground.
15
GND
P
Ground.
16
F_SEL1
I
Pull-up
Frequency Select Pin. LVCMOS interface levels.
Configuring the SM840002
Xtal Frequency (MHz)
F_SEL1
F_SEL0
M Divider
N Divider
Output Frequency (MHz)
25
0
125
20
156.25
25
0
1
130
26
125
25
1
0
130
52
62.5
25
1
130
26
125
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