mc12052ad Lansdale Semiconductor, Inc., mc12052ad Datasheet

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mc12052ad

Manufacturer Part Number
mc12052ad
Description
Power Dual Modulus Prescaler
Manufacturer
Lansdale Semiconductor, Inc.
Datasheet

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Legacy Device: Motorola MC12052A
used in phase–locked loop applications with low power dissipa-
tion of 2.7 mW at a minimum supply voltage of 2.7 V.
positive edges to trigger internal counters such as Motorola's
MC145xxx or Lansdale’s ML145xxx series in a PLL to provide
tuning signals up to 1.1 GHz in programmable frequency steps.
128/129 divide ratio as desired.
after SW has been biased to select the desired divide ratio.
Page 1 of 5
The ML12052 is a super low power dual modulus prescaler
The ML12052 can be used with CMOS synthesizers requiring
A Divide Ratio Control (SW) permits selection of a 64/65 or
The Modulus Control (MC) selects the proper divide number
• 1.1 GHz Toggle Frequency
• The ML12052 is Pin and Functionally Compatible with the
• Low Power 1.0 mA Typical
• 2.0 mA Maximum, V CC = 2.7 to 5.5 Vdc
• Short Setup Time (t set ) 16 ns Maximum @ 1.1 GHz
• Modulus Control Input Level is Compatible with Standard
• Maximum Input Voltage Should Be Limited to 6.5 Vdc
• Operating Temperature Range T A = –40 to 85°C
FUNCTIONAL TABLE
NOTES: 1. SW: H = V CC , L = Open. A logic L can also be applied by grounding this pin,
MAXIMUM RATINGS
Motorola or ON Semiconductor MC12022
CMOS and TTL
Power Supply Voltage, Pin 2
Operating Temperature Range
Storage Temperature Range
Modulus Control Input, Pin 6
SW
2. MC: H = 2.0 V to V CC , L = GND to 0.8 V.
H
H
L
L
but this is not recommended due to increased power consumption.
Characteristic
MC
MECL PLL COMPONENTS ÷64/65, ÷128/129 DUAL MODULUS PRESCALER
H
H
L
L
Symbol
V CC
T stg
MC
T A
Divide Ratio
SEMICONDUCTOR TECHNICAL DATA
128
129
–0.5 to 7.0
–65 to 150
–0.5 to 6.5
64
65
–40 to 85
Range
www.lansdale.com
Unit
Vdc
Vdc
°C
°C
ML12052
1.1 GHz Super Low
Power Dual Modulus
Prescaler
Note: Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from ML to MLE.
SO 8
PIN CONNECTIONS
V CC
OUT
SW
PLASTIC PACKAGE
IN
1
2
3
4
MC12052AD
SO 8 = -5P
(Top View)
CASE 751
8
(SO–8)
1
8
7
6
5
IN
NC
MC
Gnd
ML12052-5P
Issue A

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mc12052ad Summary of contents

Page 1

... T stg –65 to 150 °C MC –0.5 to 6.5 Vdc www.lansdale.com -5P PLASTIC PACKAGE CASE 751 (SO– MC12052AD ML12052-5P Note: Lansdale lead free (Pb) product becomes available, will be identified by a part number prefix change from ML to MLE. PIN CONNECTIONS ...

Page 2

... Out Figure 3. AC Test Circuit OUT GND MC Input www.lansdale.com LANSDALE Semiconductor, Inc. Min Typ Max f t 0.1 1 – 1.0 2.0 – 0.5 V Gnd – – 0 0.5 V Open Open Open 0.8 1.1 t set – ...

Page 3

... Page Figure 4. Typical Input Impedance versus Input Frequency 200 300 400 500 600 700 Frequency (MHz) www.lansdale.com LANSDALE Semiconductor, Inc. MHz 800 900 1000 1100 1200 Issue A ...

Page 4

... Application note AN535 decribes using a two- modulus prescaler technique.By using prescaler higher frequencies can be achieve than by a single CMOS PLL device. Page PLL Fout Fin VCO Loop Filter www.lansdale.com LANSDALE Semiconductor, Inc. ML145146 ML145158 ML145159 Issue A ...

Page 5

... Lansdale data sheets and/or specifications can vary in different applications, and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by the customer’s technical experts. Lansdale Semiconductor is a registered trademark of Lansdale Semiconductor, Inc. Page ...

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