INTERSIL CD4046BMS

CD4046BMS
CMOS Micropower Phase Locked Loop
December 1992
Features
Description
• Very Low Power Consumption:
70µW (typ.) at VCO fo = 10kHz, VDD = 5V
• Operating Frequency Range Up to 1.4 MHz (typ.) at
VDD = 10V, RI = 5kΩ
CD4046BMS CMOS Micropower Phase-Locked Loop (PLL)
consists of a low power linear voltage-controlled oscillator (VCO)
and two different phase comparators having a common signalinput amplifier and a common comparator input. A 5.2V zener
diode is provided for supply regulation if necessary.
• Low Frequency Drift: 0.04%/oC (typ.) at VDD = 10V
The CD4046BMS is supplied in these 16-lead outline packages:
• Choice of Two Phase Comparators:
- Exclusive-OR Network (I)
- Edge-Controlled Memory Network with Phase-Pulse
Output for Lock Indication (II)
Braze Seal DIP H4W
Frit Seal DIP
H1F
Ceramic Flatpack H6W
• High VCO Linearity: <1% (typ.) at VDD = 10V
• VCO Inhibit Control for ON-OFF Keying and Ultra-Low
Standby Power Consumption
• Source-Follower
(Demod. Output)
Output
of
VCO
Control
Input
• Zener Diode to Assist Supply Regulation
• Standardize, Symmetrical Output Characteristics
• 100% Tested for Quiescent Current at 20V
• 5V, 10V and 15V Parametric Ratings
• Meets All Requirements of JEDEC Tentative Standard
No. 13B, “Standard Specifications for Description of ‘B’
Series CMOS Devices”
Applications
• FM Demodulator and Modulator
• Frequency Synthesis and Multiplication
• Frequency Discriminator
• Data Synchronization
VCO Section
The VCO requires one external capacitor C1 and one or two
external resistors (R1 or R1 and R2). Resistor R1 and capacitor
C1 determine the frequency range of the VCO and resistor R2
enables the VCO to have a frequency offset if required. The high
input impedance (1012Ω) of the VCO simplifies the design of low
pass filters by permitting the designer a wide choice of resistorto-capacitor ratios. In order not to load the low-pass filter, a
source-follower output of the VCO input voltage is provided at terminal 10 (DEMODULATED OUTPUT). If this terminal is used, a
load resistor (RS) of 10kΩ or more should be connected from
this terminal to VSS. If unused this terminal should be left open.
The VCO can be connected either directly or through frequency
dividers to the comparator input of the phase comparators. A full
CMOS logic swing is available at the output of the VCO and
allows direct coupling to CMOS frequency dividers such as the
Intersil CD4024, CD4018, CD4020, CD4029, and CD4050. One
or more CD4018 (Preset Table Divide-By-N Counter) or CD4029
(Presettable Up/Down Counter) or CD4029 (Presettable Divideby-N Counter) or CD4029 (Presettable Up/Down Counter), or
CD4059A (Programmable Divide-by “N” Counter), together with
the CD4046BMS (Phase-Locked Loop) can be used to build a
micropower low-frequency synthesizer. A logic 0 on the INHIBIT
input “enables” the VCO and the source follower, while a logic 1
“turns off” both to minimize stand-by power consumption.
• Voltage-to-Frequency Conversion
• Tone Decoding
Pinout
CD4046BMS
TOP VIEW
• FSK - Modems
• Signal Conditioning
PHASE PULSES 1
PHASE COMP I OUT 2
COMPARATOR IN 3
VCO OUT 4
15 ZENER
14 SIGNAL IN
13 PHASE COMP II OUT
INHIBIT 5
12 R2 TO VSS
CI(1) 6
11 R1 TO VSS
C1 (2) 7
VSS 8
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
7-886
16 VDD
10 DEMODULATOR OUT
9 VCO IN
File Number
3312
CD4046BMS
Phase Comparators
SIGNAL INPUT (TERM. 14)
The phase-comparator signal input (terminal 14) can be
direct-coupled provided the signal swing is within CMOS
logic levels (logic “0” ≤30% (VDD-VSS). logic “1” ≥70% (VDD
- VSS)]. For smaller swings the signal must be capacitively
coupled to the self-biasing amplifier at the signal input.
Phase-comparator I is an exclusive -OR network; it operates
analogously to an overdriven balanced mixer. To maximize
the lock range, the signal and comparator-input frequencies
must have a 50% duty cycle. With no signal or noise on the
signal input, this phase comparator has an average output
voltage equal to VDD/2. The low-pass filter connected to the
output of phase-comparator I supplies the averaged voltage
to the VCO input, and causes the VCO to oscillate at the
center frequency (fo).
The frequency range of input signals on which the PLL will
lock if it was initially out of lock is defined as the frequency
capture range (2fc).
The frequency range of input signals on which the loop will
stay locked if it was initially in lock is defined as the frequency lock range (2fL). The capture range is ≤ the lock
range.
With phase-comparator I the range of frequencies over
which the PLL can acquire lock (capture range) is dependent
on the low-pass-filter characteristics, and can be made as
large as the lock range. Phase-comparator I enables a PLL
system to remain in lock in spite of high amounts of noise in
the input signal.
AVERAGE OUTPUT VOLTAGE (V)
One characteristic of this type of phase comparator is that it
may lock onto input frequencies that are close to harmonics of
the VCO center-frequency. A second characteristic is that the
phase angle between the signal and the comparator input varies between 0o and 180o, and is 90o at the center frequency.
Figure 1 shows the typical, triangular, phase-to-output
response characteristic of phase comparator I. Typical waveforms for a CMOS phase-locked-loop employing phase comparator I in locked condition of fo is shown in Figure 2.
AVERAGE OUTPUT
VOLTAGE
VDD
VDD/2
0
90o
180o
SIGNAL-TO-COMPARATOR
INPUTS PHASE DIFFERENCE
FIGURE 1. PHASE-COMPARATOR I CHARACTERISTICS AT
LOW-PASS FILTER OUTPUT
VCO OUTPUT (TERM 4) =
COMPARATOR INPUT (TERM 3)
PHASE COMPARATOR I
OUTPUT (TERM 2)
VDD
VCO INPUT (TERM 9) =
= LOW-PASS FILTER OUTPUT
VSS
FIGURE 2. TYPICAL WAVEFORMS FOR CMOS PHASELOCKED LOOP EMPLOYING PHASE COMPARATOR IN LOCKED CONDITION OF fo.
Phase comparator II is an edge-controlled digital memory
network. It consists of four flip-flop stages, control gating,
and a three-state output circuit comprising p- and n- type
drivers having a common output node. When the p-MOS or
n-MOS drivers are ON they pull the output up to VDD or
down to VSS, respectively. This type of phase comparator
acts only on the positive edges of the signal and comparator
inputs. The duty cycles of the signal and comparator inputs
are not important since positive transitions control the PLL
system utilizing this type of comparator. If the signal-input
frequency is higher than the comparator-input frequency, the
p-type output driver is maintained ON most of the time, and
both the n and p drivers OFF (3state) the remainder of the
time. If the signal-input frequency is lower than the comparator-input frequency, the n-type output driver is maintained
ON most of the time, and both the n and p drivers OFF (3
state) the remainder of the time. If the signal and comparator
input frequencies are the same, but the signal input lags the
comparator input in phase, the n-type output driver is maintained ON for a time corresponding to the phase differences.
If the signal and comparator-input frequencies are the same,
but the comparator input lags the signal in phase, the p-type
output driver is maintained ON for a time corresponding to
the phase difference. Subsequently, the capacitor voltage of
the low-pass filter connected to this phase comparator is
adjusted until the signal and comparator inputs are equal in
both phase and frequency. At this stable point both p- and ntype output drivers remain OFF and thus the phase comparator output becomes an open circuit and holds the voltage
on the capacitor of the low-pass filter constant. Moreover the
signal at the “phase pulses” output is a high level which can
be used for indicating a locked condition. Thus, for phase
comparator II, no phase difference exists between signal and
comparator input over the full VCO frequency range. Moreover, the power dissipation due to the low-pass filter is
reduced when this type of phase comparator is used
because both the p- and n-type output drivers are OFF for
most of the signal input cycle. It should be noted that the
PLL lock range for this type of phase comparator is equal to
the capture range, independent of the low-pass filter. With
no signal present at the signal input, the VCO is adjusted to
its lowest frequency for phase comparator II. Figure 15
shows typical waveforms for a CMOS PLL employing phase
comparator II in a locked condition.
7-887
Specifications CD4046BMS
Absolute Maximum Ratings
Reliability Information
DC Supply Voltage Range, (VDD) . . . . . . . . . . . . . . . -0.5V to +20V
(Voltage Referenced to VSS Terminals)
Input Voltage Range, All Inputs . . . . . . . . . . . . .-0.5V to VDD +0.5V
DC Input Current, Any One Input . . . . . . . . . . . . . . . . . . . . . . . .±10mA
Operating Temperature Range . . . . . . . . . . . . . . . . -55oC to +125oC
Package Types D, F, K, H
Storage Temperature Range (TSTG) . . . . . . . . . . . -65oC to +150oC
Lead Temperature (During Soldering) . . . . . . . . . . . . . . . . . +265oC
At Distance 1/16 ± 1/32 Inch (1.59mm ± 0.79mm) from case for
10s Maximum
Thermal Resistance . . . . . . . . . . . . . . . .
θja
θjc
Ceramic DIP and FRIT Package . . . . . 80oC/W
20oC/W
Flatpack Package . . . . . . . . . . . . . . . . 70oC/W
20oC/W
o
Maximum Package Power Dissipation (PD) at +125 C
For TA = -55oC to +100oC (Package Type D, F, K) . . . . . . 500mW
For TA = +100oC to +125oC (Package Type D, F, K) . . . . . Derate
Linearity at 12mW/oC to 200mW
Device Dissipation per Output Transistor . . . . . . . . . . . . . . . 100mW
For TA = Full Package Temperature Range (All Package Types)
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +175oC
TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS
PARAMETER
Supply Current
Input Leakage Current
Input Leakage Current
SYMBOL
IDD
IIL
IIH
CONDITIONS (NOTE 1)
VDD = 20V, VIN = VDD or GND
LIMITS
GROUP A
SUBGROUPS
TEMPERATURE
MIN
MAX
UNITS
1
+25oC
-
10
µA
2
+125 C
-
1000
µA
VDD = 18V, VIN = VDD or GND
3
-55oC
-
10
µA
VIN = VDD or GND
1
+25oC
-100
-
nA
2
+125oC
-1000
-
nA
VDD = 18V
3
-55oC
-100
-
nA
VDD = 20
1
+25oC
-
100
nA
2
+125oC
-
1000
nA
3
-55oC
-
100
nA
-
50
mV
VIN = VDD or GND
VDD = 20
VDD = 18V
o
Output Voltage
VOL15
VDD = 15V, No Load
1, 2, 3
+25oC,
+125oC,
-55oC
Output Voltage
VOH15
VDD = 15V, No Load (Note 3)
1, 2, 3
+25oC, +125oC, -55oC 14.95
-
V
Output Current (Sink)
IOL5
VDD = 5V, VOUT = 0.4V
1
+25oC
0.53
-
mA
Output Current (Sink)
IOL10
VDD = 10V, VOUT = 0.5V
1
+25oC
1.4
-
mA
Output Current (Sink)
IOL15
VDD = 15V, VOUT = 1.5V
1
+25oC
3.5
-
mA
Output Current (Source)
IOH5A
VDD = 5V, VOUT = 4.6V
1
+25oC
-
-0.53
mA
Output Current (Source)
IOH5B
VDD = 5V, VOUT = 2.5V
1
+25oC
-
-1.8
mA
Output Current (Source)
IOH10
VDD = 10V, VOUT = 9.5V
1
+25oC
-
-1.4
mA
mA
Output Current (Source)
IOH15
VDD = 15V, VOUT = 13.5V
1
+25oC
-
-3.5
N Threshold Voltage
VNTH
VDD = 10V, ISS = -10µA
1
+25oC
-2.8
-0.7
V
P Threshold Voltage
VPTH
VSS = 0V, IDD = 10µA
1
+25oC
0.7
2.8
V
VDD = 2.8V, VIN = VDD or GND
7
+25oC
VDD = 20V, VIN = VDD or GND
7
+25oC
VDD = 18V, VIN = VDD or GND
8A
+125oC
VDD = 3V, VIN = VDD or GND
8B
-55oC
Functional
F
VOH > VOL <
VDD/2 VDD/2
V
Input Voltage Low
(Note 2)
VIL
VDD = 5V, VOH > 4.5V, VOL < 0.5V
1, 2, 3
+25oC, +125oC, -55oC
-
1.5
V
Input Voltage High
(Note 2)
VIH
VDD = 5V, VOH > 4.5V, VOL < 0.5V
1, 2, 3
+25oC, +125oC, -55oC
3.5
-
V
Input Voltage Low
(Note 2)
VIL
VDD = 15V, VOH > 13.5V,
VOL < 1.5V
1, 2, 3
+25oC, +125oC, -55oC
-
4
V
Input Voltage High
(Note 2)
VIH
VDD = 15V, VOH > 13.5V,
VOL < 1.5V
1, 2, 3
+25oC, +125oC, -55oC
11
-
V
3 State Leakage
Current
IOZL
VIN = VDD or GND
VOUT = 0V
1
+25oC
-100
-
nA
3 State Leakage
Current
IOZH
VIN = VDD or GND
VOUT = VDD
VDD = 20V
2
+125oC
-1000
-
nA
VDD = 18V
3
-55oC
-100
-
nA
VDD = 20V
1
+25oC
-
100
nA
2
+125oC
-
1000
nA
3
-55oC
-
100
nA
VDD = 18V
7-888
Specifications CD4046BMS
TABLE 1. DC ELECTRICAL PERFORMANCE CHARACTERISTICS (Continued)
PARAMETER
Quiescent Leakage
Phase Comparator
(Bias Amp Leakage)
LIMITS
GROUP A
SUBGROUPS
TEMPERATURE
MIN
MAX
UNITS
BIAS LKG VDD = 20V, VIN = VDD or GND
PIN 14 Open
Pin 5 = VDD
1
+25oC
-
4
mA
3
-55oC
-
4
mA
VDD = 20V, VIN = VDD or GND
PIN 14 = VSS or VDD
Pin 5 = VDD
1
+25oC
-
160
µA
3
-55oC
-
160
µA
SYMBOL
CONDITIONS (NOTE 1)
NOTES: 1. All voltages referenced to device GND, 100% testing being
implemented.
2. Go/No Go test with limits applied to inputs.
3. For accuracy, voltage is measured differentially to VDD. Limit
is 0.050V max.
TABLE 2. AC ELECTRICAL PERFORMANCE CHARACTERISTICS
PARAMETER
AC Coupled Signal Input
Voltage Sensitivity
(Peak to Peak)
SYMBOL
VS
CONDITIONS (NOTE 1)
VDD = 5V, Input Frequency =
100kHz Sine Wave
GROUP A
SUBGROUPS TEMPERATURE
9
o
+25 C
LIMITS
MIN
MAX
UNITS
-
360
mV
NOTES:
1. Go/No Go test with limits applied to inputs.
TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS
LIMITS
PARAMETER
Output Voltage
SYMBOL
VOL
CONDITIONS
VDD = 5V, No Load
NOTES
TEMPERATURE
MIN
MAX
UNITS
1, 2
+25oC, +125oC,
-
50
mV
-55oC
Output Voltage
VOL
VDD = 10V, No Load
1, 2
+25oC, +125oC,
-55oC
-
50
mV
Output Voltage
VOH
VDD = 5V, No Load
1, 2
+25oC, +125oC,
-55oC
4.95
-
V
Output Voltage
VOH
VDD = 10V, No Load
1, 2
+25oC, +125oC,
-55oC
9.95
-
V
Output Current (Sink)
IOL5
VDD = 5V, VOUT = 0.4V
1, 2
+125oC
0.36
-
mA
0.64
-
mA
-55
Output Current (Sink)
Output Current (Sink)
Output Current
(Source)
Output Current
(Source)
IOL10
IOL15
IOH5A
IOH5B
Output Current
(Source)
IOH10
Output Current
(Source)
IOH15
VDD = 10V, VOUT = 0.5V
1, 2
VDD = 15V, VOUT = 1.5V
1, 2
VDD = 5V, VOUT = 4.6V
1, 2
VDD = 5V, VOUT = 2.5V
1, 2
VDD = 10V, VOUT = 9.5V
1, 2
VDD =15V, VOUT = 13.5V
1, 2
oC
+125oC
0.9
-
mA
-55oC
1.6
-
mA
+125oC
2.4
-
mA
-55oC
4.2
-
mA
+125oC
-
-0.36
mA
-55oC
-
-0.64
mA
+125oC
-
-1.15
mA
-55oC
-
-2.0
mA
+125oC
-
-0.9
mA
-55oC
-
-1.6
mA
+125oC
-
-2.4
mA
-55oC
-
-4.2
mA
Input Voltage Low
VIL
VDD = 10V, VOH > 9V, VOL < 1V
1, 2
+25oC, +125oC,
-55oC
-
3
V
Input Voltage High
VIH
VDD = 10V, VOH > 9V, VOL < 1V
1, 2
+25oC, +125oC,
-55oC
+7
-
V
7-889
Specifications CD4046BMS
TABLE 3. ELECTRICAL PERFORMANCE CHARACTERISTICS (Continued)
LIMITS
PARAMETER
Quiescent Leakage
Phase Comparator
(Bias Amp Leakage)
SYMBOL
CONDITIONS
NOTES
TEMPERATURE
MIN
MAX
UNITS
Pin 14 Open
Pin 5 = VDD
1, 2
+25oC/-55oC
-
0.2
mA
Pin 14 = VSS or VDD
Pin 5 = VDD
1, 2
+25oC/-55oC
-
20
µA
VDD = 10 Pin 14 Open
VIN =
Pin 5 = VDD
VDD or
Pin 14 = VSS or VDD
GND
Pin 5 = VDD
1, 2
+25oC/-55oC
-
1.0
mA
1, 2
+25oC/-55oC
-
40
µA
VDD = 15 Pin 14 Open
VIN =
Pin 5 = VDD
VDD or
Pin 14 = VSS or VDD
GND
Pin 5 = VDD
1, 2
+25oC/-55oC
-
1.5
mA
1, 2
+25oC/-55oC
-
80
µA
VDD = 10V, Input Frequency =
100kHz Sine Wave
1, 2
+25oC
-
660
mV
VDD = 15V, Input Frequency =
100kHz Sine Wave
1, 2
+25oC
-
1800
mV
BIAS LKG VDD = 5
VIN =
VDD or
GND
AC Coupled Signal Input Voltage Sensitivity
(Peak to Peak)
VS
NOTES:
1. All voltages referenced to device GND.
2. The parameters listed on Table 3 are controlled via design or process and are not directly tested. These parameters are characterized
on initial design release and upon design changes which would affect these characteristics.
TABLE 4. POST IRRADIATION ELECTRICAL PERFORMANCE CHARACTERISTICS
LIMITS
PARAMETER
Supply Current
SYMBOL
IDD
N Threshold Voltage
VNTH
N Threshold Voltage
Delta
∆VTN
P Threshold Voltage
VTP
P Threshold Voltage
Delta
∆VTP
Functional
F
CONDITIONS
NOTES
TEMPERATURE
MIN
MAX
UNITS
1, 4
+25oC
-
25
µA
1, 4
+25oC
-2.8
-0.2
V
VDD = 10V, ISS = -10µA
1, 4
+25oC
-
±1
V
VSS = 0V, IDD = 10µA
1, 4
+25oC
0.2
2.8
V
1, 4
+25oC
-
±1
V
1
+25oC
VOH >
VDD/2
VOL <
VDD/2
V
1, 2, 3
+25oC
-
1.35 x
+25oC
Limit
mV
VDD = 20V, VIN = VDD or GND
VDD = 10V, ISS = -10µA
VSS = 0V, IDD = 10µA
VDD = 18V, VIN = VDD or GND
VDD = 3V, VIN = VDD or GND
AC Coupled Signal Input
Voltage Sensitivity
VS
VDD = 5V
Input Frequency = 100kHz
Sine Wave
NOTES: 1. All voltages referenced to device GND.
2. Go/No Go test with limits applied to inputs.
3. See Table 2 for +25oC limit.
TABLE 5. BURN-IN AND LIFE TEST DELTA PARAMETERS +25OC
PARAMETER
SYMBOL
DELTA LIMIT
Supply Current - MSI-2
IDD
± 1.0µA
Output Current (Sink)
IOL5
± 20% x Pre-Test Reading
IOH5A
± 20% x Pre-Test Reading
Output Current (Source)
7-890
Specifications CD4046BMS
TABLE 6. APPLICABLE SUBGROUPS
CONFORMANCE GROUP
METHOD
GROUP A SUBGROUPS
Initial Test (Pre Burn-In)
100% 5004
1, 7, 9
IDD, IOL5, IOH5A
Interim Test 1 (Post Burn-In)
100% 5004
1, 7, 9
IDD, IOL5, IOH5A
Interim Test 2 (Post Burn-In)
100% 5004
1, 7, 9
IDD, IOL5, IOH5A
100% 5004
1, 7, 9, Deltas
PDA (Note 1)
Interim Test 3 (Post Burn-In)
100% 5004
1, 7, 9
100% 5004
1, 7, 9, Deltas
100% 5004
2, 3, 8A, 8B, 10, 11
Sample 5005
1, 2, 3, 7, 8A, 8B, 9, 10, 11
Subgroup B-5
Sample 5005
1, 2, 3, 7, 8A, 8B, 9, 10, 11, Deltas
Subgroup B-6
Sample 5005
1, 7, 9
Sample 5005
1, 2, 3, 8A, 8B, 9
PDA (Note 1)
Final Test
Group A
Group B
Group D
READ AND RECORD
IDD, IOL5, IOH5A
Subgroups 1, 2, 3, 9, 10, 11
Subgroups 1, 2 3
NOTE: 1. 5% Parameteric, 3% Functional; Cumulative for Static 1 and 2.
TABLE 7. TOTAL DOSE IRRADIATION
TEST
CONFORMANCE GROUPS
Group E Subgroup 2
READ AND RECORD
METHOD
PRE-IRRAD
POST-IRRAD
PRE-IRRAD
POST-IRRAD
5005
1, 7, 9
Table 4
1, 9
Table 4
TABLE 8. BURN-IN AND IRRADIATION TEST CONNECTIONS
OSCILLATOR
GROUND
VDD
Static Burn-In 1 1, 2, 4, 6, 7, 10, 11,
Note 1
13, 15
FUNCTION
OPEN
3, 5, 8, 9, 14
12, 16
Static Burn-In 2 1, 2, 4, 6, 7, 10, 11,
Note 1
13, 15
8
3, 5, 9, 12, 14, 16
Dynamic BurnIn Note 1
1, 2, 4, 6, 7, 10, 11,
13, 15
8, 9
3, 5, 12, 16
Irradiation
Note 2
1, 2, 4, 6, 7, 10, 11,
13, 15
8
3, 5, 9, 12, 14, 16
9V ± -0.5V
50kHz
25kHz
2
14
-
NOTE:
1. Each pin except VDD and GND will have a series resistor of 10K ± 5%, VDD = 18V ± 0.5V
2. Each pin except VDD and GND will have a series resistor of 47K ± 5%; Group E, Subgroup 2, sample size is 4 dice/wafer, 0 failures,
VDD = 10V ± 0.5V
7-891
CD4046BMS
Design Information
This information is a guide for approximating the values of external components for the CD4046BMS in a Phase-LockedLoop system. The selected external components must be within the following ranges:
5kΩ ≤ R1, R2, RS ≤ 1MΩ
CHARACTERISTICS
VCO Frequency
C1 ≥ 100pF at VDD ≥ 5V
PHASE
COMPARATOR USED
1
C1 ≥ 50pF at VDD ≥ 10V
DESIGN INFORMATION
VCO Without Offset R2 = ∞
VCO With Offset
f
f
MAX
O
f
MAX
2fL
f
f
MIN
O
2fL
f
MIN
VDD/2
VCO INPUT VOLTAGE
For Number Signal Input
Frequency Lock Range, 2fL
Frequency Capture Range, 2fC
VDD/2
VDD
VCO INPUT VOLTAGE
2
Same as for Number 1
1
VCO will adjust to center frequency, fo
2
VCO will adjust to lowest operating frequency, fmin
1, 2
2fL = full VCO frequency range
1, 2
2fL = fmax - fmin
1
IN R3
VDD
OUT
(1), (2)
Loop Filter Component Selection
τI = R3C2
C2
IN R3
OUT
R4
2fC ≈ 1
π
√
2πfL
τ1
For 2 fC, see Ref. (2)
C2
Phase Angle Between Signal and
Comparator
Locks On Harmonic of Center
Frequency
Signal Input Noise Rejection
2
fC = fL
1
90o at center frequency (fo) approximating 0o and 180o at ends of lock
range (2fL)
2
Always 0o in lock
1
Yes
2
No
1
High
2
Low
For further information, see
(1) F. Gardner, “Phase-Lock Techniques” John Wiley and Sons, New York 1966
(2) G. S. Moschytz, “Miniaturized RC Filters Using Phase-Locked Loop”, BSTJ, May, 1965
7-892
CD4046BMS
Block Diagram
*
SIGNAL 14
IN
16 VDD
*ALL INPUTS ARE PROTECTED
BY CMOS PROTECTION
NETWORK
PHASE
COMPARATOR I
COMPARATOR
IN
*
2
3
÷N
VDD
PHASE COMP. I OUT
PHASE COMP. II OUT
PHASE
COMPARATOR
II
VCO
OUT
13
1
PHASE PULSES
4
R3
VSS
6
*VCO IN
C1
7
LOW
PASS
FILTER
9
VCO
R1
VSS
11
VSS
SOURCE
FOLLOWER
12
*
C2
DEMODULATOR OUT
R2
10
5
VSS
RS
INHIBIT
VSS
8
15 ZENER
VSS
FIGURE 3. CMOS PHASE-LOCKED LOOP BLOCK DIAGRAM
106
o
RI = 10kΩ AMBIENT TEMPERATURE (TA) = +25 C
VCOIN = VDD/2, R2 = ∞, INHIBIT = VSS
105
104
SUPPLY VOLTAGE
(VDD) = 15V
103
10
RI = 100kΩ
5V
10
10V
1
10-5
10-4
10-3
10-2
106 RI = 10kΩ
10V
5V
15V
10V
5V
15V
RI = 1MΩ
2
10-1
1
CENTER FREQUENCY (fO) (Hz)
CENTER FREQUENCY (fO) (Hz)
Typical Performance Characteristics
10
VCO TIMING CAPACITOR (CI) (µF)
TYPICAL CENTER FREQUENCY UNIT-TO-UNIT
VARIATION
VDD (V)
∆f/fO (%)
5
±50
10
±30
15
±35
SUPPLY VOLTAGE (VDD) = 10V
VCOIN = VDD/2, R = ∞, INHIBIT = VSS
AMBIENT TEMPERATURE (TA) = -55oC
105
-55oC
RI = 100kΩ
+125oC
104
RI = 1MΩ
-55oC
+125oC
103
-55oC
102
+125oC
10
1
10-5
FIGURE 4. TYPICAL CENTER FREQUENCY AS A FUNCTION
OF C1 AND R1 AT VDD = 5V, 10V, AND 15V
7-893
10-4
10-3
10-2
10-1
1
VCO TIMING CAPACITOR (CI) (µF)
10
FIGURE 5. CENTER FREQUENCY AS A FUNCTION OF C1 AND
R1 FOR AMBIENT TEMPERATURE OF -55oC to
+125oC
CD4046BMS
Typical Performance Characteristics
(Continued)
R2 = 10kΩ AMBIENT TEMPERATURE (TA) = +25oC
VCOIN = VSS INHIBIT = VSS
105
SUPPLY VOLTAGE
(VDD) = 15V
104
103
102
R2 = 1MΩ
10V
5V
15V
10V
5V
15V
10V
5V
10
R2 = 100kΩ
10
1
10-5
10-4
10-3
10-2
10-1
1
SUPPLY VOLTAGE (VDD) = 10V
VCOIN = VSS INHIBIT = VSS
R2 = 10kΩ
FREQUENCY OFFSET (fMIN) (Hz)
FREQUENCY OFFSET (fMIN) (Hz)
106
VCO TIMING CAPACITOR (CI) (µF)
106
AMBIENT TEMPERATURE
(TA) = -55oC
105
+125oC
104
-55oC
+125oC
R2 = 1MΩ
103
R2 = 100kΩ
-55oC
102
+125oC
10
TYPICAL fMIN UNIT-TO-UNIT VARIATION
VDD (V)
∆fMIN/fMIN (%)
5
±25
10
±20
15
±25
1
10-5
FIGURE 6. TYPICAL FREQUENCY OFFSET AS A FUNCTION
OF C1 AND R2 FOR VDD = 5V, 10V, AND 15V
10-4
10-3
10-2
10-1
1
VCO TIMING CAPACITOR (CI) (µF)
10
FIGURE 7. FREQUENCY OFFSET AS A FUNCTION OF C1 AND
R2 FOR AMBIENT TEMPERATURES OF -55oC to
125oC
AMBIENT TEMPERATURE (TA) = +25oC
fMAX WHEN VCOIN = VDD INHIBIT = VSS
fMIN WHEN VCOIN = VSS
8
6
4
2
AMBIENT TEMPERATURE (TA) = +25oC
VCOIN = VDD/2, R2 = ∞
INHIBIT = VSS CL = 50pF
fMAX/fMIN
8
6
4
VCO POWER DISSIPATION (PD) (µW)
100
SUPPLY VOLTAGE (VDD) = 5V, 10V
2
15V
10
8
6
4
2
1
2
0.01
4 68
2
0.1
4 6 8
2
4 6 8
1
R2/R1
2
10
4 6 8
100
105
SUPPLY VOLTAGE (VDD) = 15V
104
CL = 50pF
1µF
10V
103
50pF
1µF
5V
102
50pF
1µF
TYPICAL fMAX/fMIN UNIT-TO-UNIT VARIATION
VDD (V)
fMAX/fMIN (%)
5
±12
10
±8
15
±12
10
2
10
4 6
8
2
4 6
102
8
2
103
4 6
8
104
R1 (kΩ)
FIGURE 8. TYPICAL fMAX/fMIN AS A FUNCTION OF R2/R1
FIGURE 9. TYPICAL VCO POWER DISSIPATION AT CENTER
FREQUENCY AS A FUNCTION OF R1
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894
CD4046BMS
(Continued)
AMBIENT TEMPERATURE (TA) = +25oC
VCOIN = VSS CL = 50pF
105
SUPPLY VOLTAGE (VDD) = 15V
104
10V
CL = 50pF
1µF
5V
50pF
1µF
103
50pF
1µF
102
AMBIENT TEMPERATURE (TA) = +25oC
VCOIN = VDD/2, R1 = R2 = ∞
VCO POWER DISSIPATION (PD) (µW)
VCO POWER DISSIPATION (PD) (µW)
Typical Performance Characteristics
104
SUPPLY VOLTAGE (VDD) = 15V
103
10V
102
101
10
2
4 6
8
2
4 6
8
102
10
2
4 6
1
8
103
5V
2
104
4 6
8
2
2kΩ
20kΩ
8
6
4
2kΩ
10V
VSS
OUTPUT CIRCUIT
103
8
6
4
2
5V
10
10
8
6
4
2
1
4 6
8 2
4 6
8 2
2
4 6
8 2
4 6
103
1
% LINEARITY =
2
4
6 8
10-1
8
104
FIGURE 12. AC-COUPLED SIGNAL INPUT VOLTAGE AS A
FUNCTION OF SIGNAL INPUT FREQUENCY
8
6
4
f(4V) + f(6V)
2
1
f0 =
8
6
4
2
1
LINEARITY - PERCENT
2
10
CL = 50pF
2
1
8
6
4
2
% LINEARITY =
f0 - f(7.5V)
f0
10-1
2
10-1
0.1µF
100pF
f(6V) + f(9V)
2
f0 =
4
6 8
2
1
4
6 8
0.01µF
x 100
f0
2
10
R1 (kΩ)
4
0.1µF
6 8
102
2
4
6 8
103
FIGURE 13. TYPICAL VCO LINEARITY AS A FUNCTION OF R1
AND C1 AT VDD = 10V
AMBIENT TEMPERATURE (TA) = +25oC
VDD = 10V, VCOIN = 5V ± 1V, R2 = ∞
8
6
4
f0 - f(5V)
10-1
10
10
SIGNAL INPUT FREQUENCY (fIN) (kHz)
CL = 50pF
100pF
1000pF
2
2
AMBIENT TEMPERATURE (TA) = +25oC
PHASE COMPARATOR II
2
104
2
13
VOUT
104
8
6
4
8
AMBIENT TEMPERATURE (TA) = +25oC
VDD = 10V, VCOIN = 5V ± 1V, R2 = ∞
8
6
4
LINEARITY - PERCENT
AC-COUPLED SIGNAL INPUT VOLTAGE (mV)
(PEAK-TO-PEAK, SINE WAVE)
SUPPLY VOLTAGE
(VDD) = 15V
102
4 6
FIGURE 11. TYPICAL SOURCE FOLLOWER POWER
DISSIPATION AS A FUNCTION OF RS
VDD
2
2
Rs (kΩ)
FIGURE 10. TYPICAL VCO POWER DISSIPATION AT fMIN AS A
FUNCTION OF R2
2
8
103
R2 (kΩ)
8
6
4
4 6
102
10
4
6 8
2
10
R1 (kΩ)
1000pF
0.01µF
0.1µF
x 100
4
6 8
102
2
4
6 8
103
FIGURE 14. TYPICAL VCO LINEARITY AS A FUNCTION
OF R1 AND C1 AT VDD = 15V
7-895
CD4046BMS
I
II
III
SIGNAL INPUT (TERM 14)
VDD
VCO OUTPUT (TERM 4) =
COMPARATOR INPUT (TERM 3)
PHASE COMPARATOR II
OUTPUT (TERM 13)
PHASE 13
COMPARATOR II
OUTPUT
-VDD
-VSS
VCO INPUT (TERM 9) =
∆ LOW-PASS FILTER
OUTPUT
-VDD
-VSS
2KΩ
2KΩ
VSS
-VDD
PHASE PULSE (TERM 1)
20KΩ
-VSS
NOTE: DASHED LINE IS AN OPEN
CIRCUIT CONDITION
(3RD STATE)
FIGURE 15. TYPICAL WAVEFORMS FOR COS/MOS PHASE-LOCKED LOOP
EMPLOYING PHASE COMPARATOR II IN LOCKED CONDICTION
FIGURE 16. PHASE COMPARATOR II
OUTPUT LOADING CIRCUIT
Chip Dimensions and Pad Layout
Dimensions in parentheses are in millimeters
and are derived from the basic inch dimensions
as indicated. Grid graduations are in mils (10-3 inch)
METALLIZATION:
PASSIVATION:
Thickness: 11kÅ − 14kÅ,
AL.
10.4kÅ - 15.6kÅ, Silane
BOND PADS: 0.004 inches X 0.004 inches MIN
DIE THICKNESS: 0.0198 inches - 0.0218 inches
7-896