Motorola MC12083D, MC12083P Datasheet
SEMICONDUCTOR TECHNICAL DATA
1
REV 2
Motorola, Inc. 1997
1/97
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The MC12083 is a ÷2 prescaler for low power frequency division of a
1.1GHz high frequency input signal. On–chip output termination provides
output current to drive a 2pF (typical) high impedance load. If additional
drive is required for the prescaler output, an external resistor can be
added parallel from the OUT Pin to GND to increase the output power.
Care must be taken not to exceed the maximum allowable current
through the output.
Stand–By mode is featured to reduce current drain to 250µA typical
when the stand–by pin SB is switched LOW disabling the prescaler.
• 1.1GHz Toggle Frequency
• Supply Voltage 2.7V to 5.5V
• Low Power 4.5mA Typical at V
CC
= 2.7V
• Operating Temperature –40 to +85°C
• On–Chip Termination
8
1
IN
IN
7
2
SB
V
CC
6
3
NC
NC
5
4
GND
OUT
Pinout: 8–Lead Plastic (Top View)
A LOW on the Stand–By Pin 7 disables the device.
MAXIMUM RATINGS
Symbol
Parameter Value Unit
V
CC
Power Supply Voltage, Pin 2 –0.5 to +7.0 VDC
T
A
Operating Temperature Range –40 to +85 °C
T
stg
Storage Temperature Range –65 to +150 °C
I
O
Maximum Output Current, Pin 4 10.0 mA
MECL PLL COMPONENTS
÷2
PRESCALER
WITH STAND–BY MODE
P SUFFIX
8–LEAD PLASTIC PACKAGE
CASE 626–05
D SUFFIX
8–LEAD PLASTIC SOIC PACKAGE
CASE 751–05
MC12083
MOTOROLA HIPERCOMM
BR1334 — Rev 4
2
ELECTRICAL CHARACTERISTICS (VCC = 2.7 to 5.5V; TA = –40 to +85°C)
Symbol Parameter Min Typ Max Unit
ft Toggle Frequency (Sine Wave) 0.1 1.4 1.1 GHz
I
CC
Supply Current Output (Pin 2) VCC = 3.0V
VCC = 5.5V
4.4
4.8
6.5
6.5
mA
ISB Standby Current VCC = 3.0V
VCC = 5.5V
250
500
350
600
µA
V
IH
Standby Input HIGH (SB) 2.0 V
CC
V
V
IL
Standby Input LOW (SB) GND 0.8 V
V
OUT
Output Voltage Swing (Note 1.) 2pF Load @ 500MHz Input
2pF Load @ 750MHz Input
2pF Load @ 1100MHz Input
700
600
400
800
700
450
mV
PP
V
IN
Input Voltage Sensitivity 100–250MHz
250–400MHz
400–1 100MHz
400
200
100
1000
1000
1000
mV
PP
1. Assume 2pF load, VCC = 2.7V , VIN =minimum specification for each frequency band, TA = 85°C
Figure 1. AC Test Circuit
EXTERNAL COMPONENTS
C1 = C2 = 1000pF
C3 = 0.1
µ
F
2pF
C2
C1
C3
VCC = 2.7 to 5.5V
50
Ω
Sine Wave Generator
V
CC
OUT
GND
IN
IN
SB
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