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参数资料
| 型号： | MC12028 |
| 厂商： | Motorola, Inc. |
| 英文描述： | MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| 中文描述： | 梅奇尔PLL元件± 64/65，±一百二十九分之一百二十八双分频器 |
| 文件页数： | 1/5页 |
| 文件大小： | 93K |
| 代理商： | MC12028 |
Order this document by MC12028A/D
SEMICONDUCTOR
TECHNICAL DATA
MECL PLL COMPONENTS
÷
64/65,
÷
128/129
DUAL MODULUS PRESCALER
P SUFFIX
PLASTIC PACKAGE
CASE 626
PIN CONNECTIONS
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
1
8
IN
NC
MC
Gnd
(Top View)
8
IN
VCC
SW
OUT
7
6
5
1
2
3
4
Device
Operating
Temp Range
Package
ORDERING INFORMATION
MC12028AD
MC12028AP
TA =–40
°
to +85
°
C
SO–8
Plastic
MC12028BD
MC120228BP
SO–8
Plastic
The MC12028A can be used with CMOS synthesizers requiring positive
edges to trigger internal counters such as Motorola’s MC145XXX series in a
PLL to provide tuning signals up to 1.1 GHz in programmable frequency
steps.
The MC12028B can be used with CMOS synthesizers requiring negative
edges to trigger internal counters.
A Divide Ratio Control (SW) permits selection of a 32/33 or 64/65 divide
ratio as desired.
The Modulus Control (MC) selects the proper divide number after SW has
been biased to select the desired divide ratio.
NOTE: The “B” Version Is Not Recommended for New Designs
1.1 GHz Toggle Frequency
MC12028A for Positive Edge Triggered Synthesizers
6.5 mA Maximum, –40 to 85
°
C, VCC = 5.5 Vdc
Modulus Control Input Level Is Compatible With
Standard CMOS and TTL
Low–Power 4.0 mA Typical
FUNCTIONAL TABLE
SW
MC
Divide Ratio
H
H
32
H
L
33
L
H
64
L
L
65
NOTES:
1.SW: H = VCC, L = Open. A logic L can also be applied by grouunding this pin,
but this is not recommended due to increased power soncumption.
2.MC: H = 2.0 V to VCC, L = GND to 0.8 V.
DESIGN GUIDE
Criteria
Value
Unit
Internal Gate Count*
67
ea
Internal Gate Propagation Delay
200
ps
Internal Gate Power Dissipation
0.75
mW
Speed Power Product
0.15
pJ
NOTE:
* Equivalent to a two–input NAND gate
MAXIMUM RATINGS
Characteristic
Symbol
Range
Unit
Power Supply Voltage, Pin 2
VCC
TA
Tstg
MC
–0.5 to 7.0
Vdc
Operating Temperature Range
–40 to 85
°
C
Storage Temperature Range
–65 to 150
°
C
Modulus Control Input, Pin 6
–0.5 to 6.5
Vdc
NOTE:
ESD data available upon request.
Motorola, Inc. 1997
Rev 3
相关PDF资料 |
PDF描述 |
|---|---|
| MC12028A | MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| MC12028B | MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| MC12028AP | MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| MC12028BD | MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| MC12028BP | MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MC12028A | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| MC12028AD | 制造商:Motorola Inc 功能描述:PRESCALER, 8 Pin, Plastic, SOP |
| MC12028ADR2 | 制造商:Motorola Inc 功能描述: |
| MC12028AP | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
| MC12028B | 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MECL PLL COMPONENTS ±64/65, ±128/129 DUAL MODULUS PRESCALER |
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