Motorola MC12052AD, MC12052ASD Datasheet

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Order this document by MC12052A/D

SEMICONDUCTOR

TECHNICAL DATA

MECL PLL COMPONENTS

÷64/65, ÷128/129 LOW POWER
DUAL MODULUS PRESCALER

SD SUFFIX

PLASTIC PACKAGE

CASE 940
(SSOP–8)

PIN CONNECTIONS

D SUFFIX

PLASTIC PACKAGE

CASE 751

(SO–8)

8

1

1

8

IN

(Top View)

8

IN

V

CC

SW

OUT

NC
MC

Gnd

7
6
5

1
2
3
4

Device

Operating

Temp Range

Package

ORDERING INFORMATION

MC12052AD
MC12052ASD

TA =

–40° to +85°C

SO–8

SSOP–8

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The MC12052A is a super low power dual modulus prescaler used in
phase–locked loop applications. Motorola’s advanced Bipolar MOSAIC V
technology is utilized to achieve low power dissipation of 2.7 mW at a
minimum supply voltage of 2.7 V.

The MC12052A 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.

A Divide Ratio Control (SW) permits selection of a 64/65 or 128/129 divide
ratio as desired.

The Modulus Control (MC) selects the proper divide number after SW has
been biased to select the desired divide ratio.

• 1.1 GHz Toggle Frequency

• The MC12052 is Pin and Functionally Compatible with the MC12022

• Low Power 1.0 mA Typical

• 2.0 mA Maximum, –40 to 85°C, 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 CMOS and

TTL

• Maximum Input Voltage Should Be Limited to 6.5 Vdc

MOSAIC V is a trademark of Motorola

FUNCTIONAL TABLE

SW MC Divide Ratio

H H 64
H L 65
L H 128
L L 129

NOTES: 1.SW: H = VCC, L = Open. A logic L can also be applied by grounding this pin,

but this is not recommended due to increased power consumption.

2.MC: H = 2.0 V to VCC, L = GND to 0.8 V.

MAXIMUM RATINGS

Characteristic Symbol Range Unit

Power Supply Voltage, Pin 2 V

CC

–0.5 to 7.0 Vdc

Operating Temperature Range T

A

–40 to 85 °C

Storage Temperature Range T

stg

–65 to 150 °C

Modulus Control Input, Pin 6 MC –0.5 to 6.5 Vdc

 Motorola, Inc. 1997 Rev 3

MC12052A

2

MOTOROLA RF/IF DEVICE DATA

ELECTRICAL CHARACTERISTICS

(VCC = 2.7 to 5.5 VDC, TA = –40 to 85°C, unless otherwise noted.)

Characteristic

Symbol Min Typ Max Unit

Toggle Frequency (Sine Wave Input) f

t

0.1 1.4 1.1 GHz

Supply Current (Pin 2) I

CC

– 1.0 2.0 mA

Modulus Control Input High (MC) V

IH1

2.0 – VCC + 0.5 V V

Modulus Control Input Low (MC) V

IL1

Gnd – 0.8 V

Divide Ratio Control Input High (SW) V

IH2

VCC – 0.5 V V

CC

VCC + 0.5 V VDC

Divide Ratio Control Input Low (SW) V

IL2

Open Open Open –

Output Voltage Swing (Note 2)

(CL = 8.0 pF, RL = 3.3 kΩ)

V

out

0.8 1.1 – V

PP

Modulus Setup Time MC to Out @ 1100 MHz t

set

– 11 16 ns

Input Voltage Sensitivity 250–1100 MHz

100–250 MHz

V

in

100
400

–
–

1000
1000

mV

PP

Output Current (Note 1)

VCC = 2.7 V, CL = 8.0 pF, RL = 3.3 kΩ
VCC = 5.0 V, CL = 8.0 pF, RL = 7.2 kΩ

I

O

–
–

0.5

0.5

3.0

3.0

mA

NOTES: 1.Divide ratio of ÷64/65 @ 1.1 GHz

2.Valid over voltage range 2.7 to 5.5 V; RL = 3.3 kΩ @ VCC = 2.7 V; RL = 7.2 kΩ @ VCC = 5.0 V

Figure 1. Logic Diagram (MC12052A)

A

HGFED

In

MC

In

SW

Out

Q

S

Q

C

QBD

QC

QBD

QBC

QD

C

QBD

QBC

QD

QBC

QD

B

QBC

QD

C

QB

C

QD

M

Figure 2. Modulus Setup Time

Modulus setup time MC to out is the MC
setup or MC release plus the prop delay.

Prop. Delay

In

Out

MC

MC Setup

MC Release

Figure 3. AC Test Circuit

EXTERNAL COMPONENTS
C1 = C2 = 1000 pF
C3 = 0.1

µ

F
CL = 8.0pF (Including Scope
and jig capacitance)
RL = 3.3 k

Ω

@ VCC = 2.7 V

RL = 7.2 k

Ω

@ VCC = 5.0 V

C

L

MC Input

C2

C1

C3

VCC = 2.7 to 5.5 V

50

Ω

Sine Wave Generator

SWV

CC

OUT

GND

MC

IN

IN

R

L