MOTOROLA MCH12140 Phase-frequency detector Datasheet

Order this document By MCH12140/D
The MCH/K12140 is a phase frequency-detector intended for
phase-locked loop applications which require a minimum amount of phase
and frequency difference at lock. When used in conjunction with the
MC12147, MC12148 or MC12149 VCO, a high bandwidth PLL can be
realized. The device is functionally compatible with the MC12040
phase-frequency detector, however the MOSAIC III process is used to
push the maximum frequency to 800 MHz and significantly reduce the dead
zone of the detector. When the Reference (R) and VCO (V) inputs are
unequal in frequency and/or phase, the differential UP (U) and DOWN (D)
outputs will provide pulse streams which when subtracted and integrated
provide an error voltage for control of a VCO.
The device is packaged in a small outline, surface mount 8-lead SOIC
package. There are two versions of the device to provide I/O compatibility to
the two existing ECL standards. The MCH12140 is compatible with
MECL10H logic levels while the MCK12140 is compatible to 100K ECL
logic levels. This device can also be used in +5.0 V systems. Please refer to
Motorola Application Note AN1406/D, “Designing with PECL (ECL at +5.0
V)” for more information.
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•
•
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PHASE–FREQUENCY
DETECTOR
SEMICONDUCTOR
TECHNICAL DATA
8
1
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
800 MHz Typical Bandwidth
Small Outline 8-Lead SOIC Package
75 kΩ Internal Input Pulldown Resistors
>1000 V ESD Protection
For proper operation, the input edge rate of the R and V inputs should be
less than 5ns.
MOSAIC III and MECL 10H are trademarks of Motorola
PIN CONNECTIONS
VCC
R
V
VEE
8
7
6
5
1
2
3
4
U
U
D
D
LOGIC DIAGRAM
U (fR > fV)
R
R
Q
U (fR > fV)
(Top View)
S
S
R
Q
D (fV > fR)
ORDERING INFORMATION
V
D (fV > fR)
Device
MCH1214OD
MCK12140D
Operating
Temperature Range
Package
TA = –40° to +70°C
SO–8
 Motorola, Inc. 1997
Rev 4
MCH12140 MCK12140
TRUTH TABLE*
Input
Output
Input
Output
R
V
U
D
U
D
R
V
U
D
U
D
0
0
1
0
0
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
1
1
1
1
1
0
1
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
1
0
1
1
1
1
1
0
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
1
0
1
1
1
1
0
0
0
1
1
0
1
1
1
0
0
1
NOTE: * This is not strictly a functional table; i.e., it does not cover all possible modes of operation. However, it gives a sufficient number of tests to ensure that
the device will function properly.
H–SERIES DC CHARACTERISTICS (VEE = VEE(min) – VEE(max); VCC = GND1, unless otherwise noted.)
–40°C
Characteristic
0°C
25°C
70°C
Symbol
Min
Max
Min
Max
Min
Max
Min
Max
Unit
Output HIGH Voltage
VOH
–1080
–890
–1020
–840
–980
–810
–910
–720
mV
Output LOW Voltage
VOL
–1950
–1650
–1950
–1630
–1950
–1630
–1950
–1595
mV
Input HIGH Voltage
VIH
–1230
–890
–1170
–840
–1130
–810
–1060
–720
mV
Input LOW Voltge
VIL
–1950
–1500
–1950
–1480
–1950
–1480
–1950
–1445
mV
Input LOW Current
IIL
0.5
—
0.5
—
0.5
—
0.3
—
µA
NOTE:
1. 10H circuits are designed to meet the DC specifications shown in the table after thermal equilibrium has been established. The circuit is in a test socket
or mounted on a printed circuit board and transverse airflow greater than 500lfpm is maintained. Outputs are terminated through a 50Ω resistor to –2.0V
except where otherwise specified on the individual data sheets.
K–SERIES DC CHARACTERISTICS (VEE = VEE(min) – VEE(max); VCC = GND1, unless otherwise noted.)
–40°C
Characteristic
0°C to 70°C
Symbol
Min
Typ
Max
Min
Typ
Max
Unit
Condition
Output HIGH Voltage
VOH
–1085
–1005
–880
–1025
–955
–880
mV
VIN = VIH(max)
Output LOW Voltage
VOL
–1830
–1695
–1555
–1810
–1705
–1620
mV
or VIL(min)
Output HIGH Voltage
VOHA
–1095
—
—
–1035
—
—
mV
VIN = VIH(min)
Output LOW Voltage
VOLA
—
—
–1555
—
—
–1610
mV
or VIL(max)
Input HIGH Voltage
VIH
–1165
—
–880
–1165
—
–880
mV
Input LOW Voltge
VIL
–1810
—
–1475
–1810
—
–1475
mV
Input LOW Current
IIL
0.5
—
—
0.5
—
—
µA
NOTE:
VIN = VIL(max)
1. This table replaces the three tables traditionally seen in ECL 100K data books. The same DC parameter values at VEE = –4.5V now apply across the
full VEE range of –4.2V to –5.5V. Outputs are terminated through a 50Ω resistor to –2.0V except where otherwise specified on the individual data
sheets.
ABSOLUTE MAXIMUM RATINGS (Note 1)
Characteristic
Power Supply (VCC = 0V)
Input Voltage (VCC = 0V)
Output Current
Continuous
Surge
Operating Temperature Range
Operating Range1,2
Symbol
Rating
Unit
VEE
–8.0 to 0
VDC
VI
0 to –6.0
VDC
Iout
50
100
mA
TA
–40 to +70
°C
VEE
–5.7 to –4.2
V
NOTES: 1. Absolute maximum rating, beyond which, device life may be impaired, unless otherwise specified on an individual data sheet.
2. Parametric values specified at: H–Series: –4.20 V to –5.50 V
K–Series: –4.94 V to –5.50 V
3. ESD data available upon request.
2
MOTOROLA RF/IF DEVICE DATA
MCH12140 MCK12140
DC CHARACTERISTICS (VEE = VEE(min) – VEE(max); VCC = GND, unless otherwise noted.)
–40°C
Characteristic
Symbol
Power Supply Current
H
K
IEE
Power Supply Voltage
H
K
VEE
Input HIGH Current
Min
Typ
0°C
Max
–5.2
–4.5
–5.5
–5.5
IIH
70°C
Min
Typ
Max
Min
Typ
Max
Min
Typ
Max
Unit
38
38
45
45
52
52
38
38
45
45
52
52
38
42
45
50
52
58
mA
–4.75
–4.20
–5.2
–4.5
–5.5
–5.5
–4.75
–4.20
–5.2
–4.5
–5.5
–5.5
–4.75
–4.20
–5.2
–4.5
–5.5
–5.5
V
150
µA
Max
Unit
ps
45
45
–4.75
–4.20
25°C
150
150
150
AC CHARACTERISTICS (VEE = VEE(min) – VEE(max); VCC = GND, unless otherwise noted.)
–40°C
Characteristic
Symbol
Maximum Toggle Frequency
FMAX
Propagation Delay
to Output
tPLH
tPHL
R to D
R to U
V to D
V to U
Output Rise/Fall Times
Q (20 to 80%)
Min
tr
tf
Typ
0°C
Max
Min
Typ
800
650
800
440
330
330
440
320
210
210
320
440
330
330
440
225
100
225
25°C
Max
Min
Typ
650
800
580
470
470
580
320
210
210
320
440
330
330
440
350
100
225
70°C
Max
Min
Typ
650
800
580
470
470
580
360
240
240
360
480
360
360
480
620
500
500
620
350
100
225
350
ps
APPLICATIONS INFORMATION
The 12140 is a high speed digital circuit used as a phase
comparator in an analog phase-locked loop. The device
determines the “lead” or “lag” phase relationship and time
difference between the leading edges of a VCO (V) signal
and a Reference (R) input. Since these edges occur only
once per cycle, the detector has a range of ±2π radians.
The operation of the 12140 can best be described using
the plots of Figure 1. Figure 1 plots the average value of U, D
and the difference between U and D versus the phase
difference between the V and R inputs.
There are four potential relationships between V and R: R
lags or leads V and the frequency of R is less than or greater
than the frequency of V. Under these four conditions the
12140 will function as follows:
Figure 1. Average Output Voltage versus
Phase Difference
Fv > Fr
–2π
R lags V
U
R leads V
π
–π
Fv < Fr
2π
VOH
VOH – VOL
2
D
VOH
–2π
π
–π
2π
U–D
–2π
–π
VOH – VOL
2
VOH – VOL
2
π
2π
R lags V in phase
When the R and V inputs are equal in frequency and the
phase of R lags that of V the U output will stay HIGH while the
D output will pulse from HIGH to LOW. The magnitude of the
pulse will be proportional to the phase difference between the
V and R inputs reaching a minimum 50% duty cycle under a
180° out of phase condition. The signal on D indicates to the
VCO to decrease in frequency to bring the loop into lock.
V frequency > R frequency
When the frequency of V is greater than that of R the
12140 behaves in a simlar fashion as above. Again the signal
on D indicates that the VCO frequency must be decreased to
bring the loop into lock.
R leads V in phase
When the R and V inputs are equal in frequency and the
phase of R leads that of V the D output will stay HIGH while
the U output pulses from HIGH to LOW. The magnitude of the
pulse will be proportional to the phase difference between the
V and R inputs reaching a minimum 50% duty cycle under a
180° out of phase condition. The signal on U indicates to the
VCO to increase in frequency to bring the loop into lock.
V frequency < R frequency
When the frequency of V is less than that of R the 12140
behaves in a simlar fashion as above. Again the signal on U
indicates that the VCO frequency must be decreased to bring
the loop into lock.
From Figure 1 when V and R are at the same frequency
and in phase the value of U – D is zero thus providing a zero
error voltage to the VCO. This situation indicates the loop is
in lock and the 12140 action will maintain the loop in its
locked state.
VOL – VOH
2
MOTOROLA RF/IF DEVICE DATA
3
MCH12140 MCK12140
D SUFFIX
PLASTIC PACKAGE
CASE 751-06
(SO–8)
ISSUE T
D
A
8
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME
Y14.5M, 1994.
2. DIMENSIONS ARE IN MILLIMETER.
3. DIMENSION D AND E DO NOT INCLUDE MOLD
PROTRUSION.
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.
5. DIMENSION B DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.127 TOTAL IN EXCESS
OF THE B DIMENSION AT MAXIMUM MATERIAL
CONDITION.
C
5
0.25
H
E
M
B
M
1
4
h
B
e
X 45 _
q
A
C
SEATING
PLANE
L
0.10
A1
B
0.25
M
C B
S
A
S
DIM
A
A1
B
C
D
E
e
H
h
L
q
MILLIMETERS
MIN
MAX
1.35
1.75
0.10
0.25
0.35
0.49
0.19
0.25
4.80
5.00
3.80
4.00
1.27 BSC
5.80
6.20
0.25
0.50
0.40
1.25
0_
7_
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4
◊
MCH12140/D
MOTOROLA RF/IF DEVICE
DATA