MC100EP139 반도체 회로 부품 판매점
Clock Generation Chip
|
|
 ON Semiconductor |
MC10EP139, MC100EP139
3.3 V / 5 V ECL ÷2/4, ÷4/5/6
Clock Generation Chip
Description
The MC10/100EP139 is a low skew ÷2/4, ÷4/5/6 clock generation chip
designed explicitly for low skew clock generation applications. The
internal dividers are synchronous to each other, therefore, the common
output edges are all precisely aligned.
The common enable (EN) is synchronous so that the internal dividers
will only be enabled/disabled when the internal clock is already in the
LOW state. This avoids any chance of generating a runt clock pulse on
the internal clock when the device is enabled/disabled as can happen with
an asynchronous control. The internal enable flip-flop is clocked on the
falling edge of the input clock, therefore, all associated specification
limits are referenced to the negative edge of the clock input.
Upon start-up, the internal flip-flops will attain a random state;
therefore the master reset (MR) input may require assertion to ensure
system synchronization. Internal divider design ensures synchronization
between the ÷2/4 and the ÷4/5/6 outputs within a device. All VCC and
VEE pins must be externally connected to power supply to guarantee
proper operation.
The VBB Pin, an internally generated voltage supply, is available to this
device only. For Single-Ended input conditions, the unused differential
input is connected to VBB as a switching reference voltage. VBB may also
rebias AC coupled inputs. When used, decouple VBB and VCC via a
0.01 mF capacitor and limit current sourcing or sinking to 0.5 mA. When
not used, VBB should be left open.
The 100 Series contains temperature compensation.
Features
• Maximum Frequency = > 1.0 GHz Typical
• 50 ps Output-to-Output Skew
• PECL Mode Operating Range:
VCC = 3.0 V to 5.5 V with VEE = 0 V
• NECL Mode Operating Range:
VCC = 0 V with VEE = −3.0 V to −5.5 V
• Open Input Default State
• Safety Clamp on Inputs
• Synchronous Enable/Disable
• Master Reset for Synchronization of Multiple Chips
• VBB Output
• These Devices are Pb-Free, Halogen Free and are RoHS Compliant
www.onsemi.com
11
TSSOP−20 WB
DT SUFFIX
CASE 948E
SOIC−20 WB
DW SUFFIX
CASE 751D
QFN−20
MN SUFFIX
CASE 485E
MARKING DIAGRAMS*
HEP or KEP
139
ALYWG
G
20
MCXXXEP139
AWLYYWWG
1
TSSOP−20 WB SOIC−20 WB
20
1 XXXX
EP139
ALYWG
G
QFN−20
HEP = MC10EP
KEP = MC100EP
XXX = 10 or 100
A = Assembly Location
L,WL = Wafer Lot
Y, YY = Year
W, WW = Work Week
G or G = Pb-Free Package
(Note: Microdot may be in either location)
*For additional marking information, refer to
Application Note AND8002/D.
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
© Semiconductor Components Industries, LLC, 2016
August, 2016 − Rev. 14
1
Publication Order Number:
MC10EP139/D
MC10EP139, MC100EP139
VCC
EN
DIVSELb0
CLK
CLK
VBB
MR
VCC
DIVSELb1
DIVSELa
1
2
3
4
5
6
7
8
9
10
MC10/100EP139
20 VCC
19 Q0
18 Q0
17 Q1
16 Q1
15 Q2
14 Q2
13 Q3
12 Q3
11 VEE
Warning: All VCC and VEE pins must be externally connected to
a Power Supply to guarantee proper operation.
Figure 1. 20-Lead Pinout (Top View)
Table 1. PIN DESCRIPTION
PIN FUNCTION
CLK*, CLK*
ECL Differential Clock Inputs
EN* ECL Sync Enable
MR* ECL Master Reset
VBB
Q0, Q1, Q0, Q1
ECL Reference Output
ECL Differential B2/4 Outputs
Q2, Q3, Q2, Q3
ECL Differential B4/5/6 Outputs
DIVSELa*
ECL Frequency Select Input B2/4
DIVSELb0*
ECL Frequency Select Input B4/5/6
DIVSELb1*
ECL Frequency Select Input B4/5/6
VCC ECL Positive Supply
VEE ECL Negative Supply
EP Exposed Pad
*Pins will default low when left open.
Exposed Pad
20 19 18 17 16
DIVSELb0
CLK
CLK
VBB
MR
1
2
3
4
5
MC10/100EP139
15 Q1
14 Q1
13 Q2
12 Q2
11 Q3
6 7 8 9 10
Warning: All VCC and VEE pins must be externally connected to a Power Supply to
guarantee proper operation.
The Exposed Pad (EP) on package bottom must be attached to a heat-sinking con-
duit. The Exposed Pad may only be electrically connected to VEE.
Figure 2. QFN-20 Pinout (Top View)
www.onsemi.com
2
|
PDF 파일 내의 페이지 : 총 14 페이지
제조업체: ON Semiconductor
( onsemi )
MC100EP139 data
데이터시트 다운로드 :
[ MC100EP139.PDF ]
[ MC100EP139 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
MC100EP131
3.3V / 5V ECL Quad D Flip-Flop with Set / Reset / and Differential Clock - ON Semiconductor
MC100EP139
Clock Generation Chip - ON Semiconductor