Freescale Semiconductor, Inc.
Technical Data
MC145170-2/D
Rev. 4, 02/2003
PLL Frequency
Synthesizer with Serial
Interface
MC145170-2
P SUFFIX
CASE 648
D SUFFIX
CASE 751B
DT SUFFIX
CASE 948C
Freescale Semiconductor, Inc...
Ordering Information
Device
MC145170P2
MC145170D2
MC145170DT2
T
A
= -40 to 85°C
Operating
Temp Range
Package
Plastic DIP
SOG-16
TSSOP-16
Contents:
1
2
3
4
5
Introduction . . . . . . . . . . 1
Specifications . . . . . . . . 3
Pin Connections . . . . . 10
Design Considerations 18
Packaging. . . . . . . . . . . 30
1 Introduction
The new MC145170-2 is pin-for-pin compatible with the MC145170-1. A comparison of the
two parts is shown in the table below. The MC145170-2 is recommended for new designs
and has a more robust power-on reset (POR) circuit that is more responsive to momentary
power supply interruptions. The two devices are actually the same chip with mask options for
the POR circuit. The more robust POR circuit draws approximately 20
µA
additional supply
current. Note that the maximum specification of 100
µA
quiescent supply current has not
changed.
The MC145170-2 is a single-chip synthesizer capable of direct usage in the MF, HF, and
VHF bands. A special architecture makes this PLL easy to program. Either a bit- or byte-
oriented format may be used. Due to the patented BitGrabber registers, no address/steering
bits are required for
random access
of the three registers. Thus, tuning can be accomplished
via a 2-byte serial transfer to the 16-bit N register.
The device features fully programmable R and N counters, an amplifier at the f
in
pin, on-chip
support of an external crystal, a programmable reference output, and both single- and double-
ended phase detectors with linear transfer functions (no dead zones). A configuration (C)
register allows the part to be configured to meet various applications. A patented feature
allows the C register to shut off unused outputs, thereby minimizing noise and interference.
In order to reduce lock times and prevent erroneous data from being loaded into the counters,
a patented jam-load feature is included. Whenever a new divide ratio is loaded into the N
register, both the N and R counters are jam-loaded with their respective values and begin
counting down together. The phase detectors are also initialized during the jam load.
•
Operating Voltage Range: 2.7 to 5.5 V
© Motorola, Inc., 2003. All rights reserved.
For More Information On This Product,
Go to: www.freescale.com
Introduction
Freescale Semiconductor, Inc.
•
Maximum Operating Frequency:
185 MHz @ V
in
= 500 mVpp, 4.5 V Minimum Supply
100 MHz @ V
in
= 500 mVpp, 3.0 V Minimum Supply
Operating Supply Current:
0.6 mA @ 3.0 V, 30 MHz
1.5 mA @ 3.0 V, 100 MHz
3.0 mA @ 5.0 V, 50 MHz
5.8 mA @ 5.0 V, 185 MHz
Operating Temperature Range: -40 to 85°C
R Counter Division Range: 1 and 5 to 32,767
N Counter Division Range: 40 to 65,535
Direct Interface to Motorola SPI Serial Data Port
See Application Notes AN1207/D and AN1671/D
Contact Motorola for MC145170 control software.
Table 1. Comparision of the PLL Frequency Synthesizers
Parameter
Minimum Supply Voltage
Maximum Input Current, f
in
Dynamic Characteristics, f
in
(Figure 26)
Power-On Reset Circuit
MC145170-2
2.7 V
150
µA
Unchanged
Improved
MC145170-1
2.5 V
120
µA
-
-
•
•
•
•
•
•
•
Freescale Semiconductor, Inc...
2
MC145170-2 Technical Data
For More Information On This Product,
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MOTOROLA
Freescale Semiconductor, Inc.
Electrical Characteristics
OSC
in
OSC
out
1
2
OSC
15-stage R Counter
f
R
Control
9
f
R
15
REF
out
3
4-Stage
Reference
Divider
3
BitGrabber R Register
15 Bits
Lock Detector and Control
11
LD
CLK
D
in
Dout
7
5
Shift
Register
And Control
Logic
BitGrabber C Register
8 Bits
16
Phase/Frequency Detector A
and Control
13
PD
out
8
POR
Freescale Semiconductor, Inc...
ENB
6
BitGrabber N Register
16 Bits
16
Phase/Frequency Detector B
and Control
14
15
f
R
f
V
f
V
Control
f
in
4
Input
AMP
16-Stage N Counter
Pin 16 = V
DD
Pin 12 = V
SS
10
f
V
This device contains 4,800 active transistors.
Figure 1. Block Diagram
2 Electrical Characteristics
Table 2.
Maximum Ratings
(Voltages Referenced to V
SS
)
Parameter
DC Supply Voltage
DC Input Voltage
DC Output Voltage
DC Input Current, per Pin
DC Output Current, per Pin
DC Supply Current, V
DD
and V
SS
Pins
Power Dissipation, per Package
Storage Temperature
Lead Temperature, 1 mm from Case
for 10 seconds
Symbol
V
DD
V
in
V
out
I
in
I
out
I
DD
P
D
T
stg
T
L
Value
-0.5 to 5.5
-0.5 to V
DD
+ 0.5
-0.5 to V
DD
+ 0.5
±10
±20
±30
300
-65 to 150
260
Unit
V
V
V
mA
mA
mA
mW
°C
°C
NOTES:
1. Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the limits in the Electrical Characteristics
tables or Pin Descriptions section.
2. ESD data available upon request.
MOTOROLA
MC145170-2 Technical Data
For More Information On This Product,
Go to: www.freescale.com
3
Electrical Characteristics
Freescale Semiconductor, Inc.
(Voltages Referenced to V
SS
, T
A
= -40 to 85°C)
Table 3.
Electrical Characteristics
Parameter
Power Supply Voltage Range
Maximum Low-Level Input
Voltage [Note 1]
(D
in
, CLK, ENB, f
in
)
Minimum High-Level Input
Voltage [Note 1]
(D
in
, CLK, ENB, f
in
)
Minimum Hysteresis Voltage
(CLK, ENB)
Maximum Low-Level Output
Voltage (Any Output)
Minimum High-Level Output
Voltage (Any Output)
Minimum Low-Level Output
Current (PD
out
, REF
out
, f
R
, f
V
,
LD,
φ
R
,
φ
V
)
Minimum High-Level Output
Current (PD
out
, REF
out
, f
R
, f
V
,
LD,
φ
R
,
φ
V
)
Minimum Low-Level Output
Current (D
out
)
Minimum High-Level Output
Current (D
out
)
Maximum Input Leakage Current
(D
in
, CLK, ENB, OSC
in
)
Maximum Input Current
(f
in
)
Maximum Output Leakage
Current
(PD
out
)
(D
out
)
Maximum Quiescent Supply
Current
I
out
= 20
µA
I
out
= - 20
µA
V
out
= 0.3 V
V
out
= 0.4 V
V
out
= 0.5 V
V
out
= 2.4 V
V
out
= 4.1 V
V
out
= 5.0 V
V
out
= 0.4 V
V
out
= 4.1 V
V
in
= V
DD
or V
SS
V
in
= V
DD
or V
SS
Test Condition
Symbol
V
DD
V
IL
V
DD
V
-
2.7
4.5
5.5
2.7
4.5
5.5
2.7
5.5
2.7
5.5
2.7
5.5
2.7
4.5
5.5
2.7
4.5
5.5
4.5
Guaranteed
Limit
2.7 to 5.5
0.54
1.35
1.65
2.16
3.15
3.85
0.15
0.20
0.1
0.1
2.6
5.4
0.12
0.36
0.36
-0.12
-0.36
-0.36
1.6
Unit
V
V
dc Coupling to f
in
V
IH
dc Coupling to f
in
V
Hys
V
OL
V
OH
I
OL
V
V
Freescale Semiconductor, Inc...
V
V
mA
I
OH
mA
I
OL
I
OH
I
in
I
in
I
OZ
mA
4.5
-1.6
±1.0
±150
mA
µA
µA
5.5
5.5
V
in
= V
DD
or V
SS
,
Output in High-Impedance
State
V
in
= V
DD
or V
SS
; Outputs
Open; Excluding f
in
Amp
Input Current Component
5.5
5.5
I
DD
5.5
±100
±5.0
100
nA
µA
µA
NOTES:
1. When dc coupling to the OSC
in
pin is used, the pin must be driven rail-to-rail. In this case, OSC
out
should be floated.
2. The nominal values at 3.0 V are 0.6 mA @ 30 MHz, and 1.5 mA @ 100 MHz. The nominal values at 5.0 V are 3.0 mA @ 50 MHz,
and 5.8 mA @ 185 MHz. These are not guaranteed limits.
4
MC145170-2 Technical Data
For More Information On This Product,
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MOTOROLA
Freescale Semiconductor, Inc.
Electrical Characteristics
Table 3.
Electrical Characteristics
(Continued)
(Voltages Referenced to V
SS
, T
A
= -40 to 85°C)
Parameter
Maximum Operating Supply
Current
Test Condition
Symbol
I
dd
V
DD
V
-
Guaranteed
Limit
[Note 2]
Unit
mA
f
in
= 500 mVpp;
OSC
in
= 1.0 MHz @ 1.0
Vpp;
LD, f
R
, f
V
, REF
out
= Inactive
and No Connect; OSC
out
,
φ
V
,
φ
R
, PD
out
= No Connect;
D
in
, ENB, CLK = V
DD
or
V
SS
Freescale Semiconductor, Inc...
NOTES:
1. When dc coupling to the OSC
in
pin is used, the pin must be driven rail-to-rail. In this case, OSC
out
should be floated.
2. The nominal values at 3.0 V are 0.6 mA @ 30 MHz, and 1.5 mA @ 100 MHz. The nominal values at 5.0 V are 3.0 mA @ 50 MHz,
and 5.8 mA @ 185 MHz. These are not guaranteed limits.
Table 4. AC Interface Characteristics
( T
A
= -40 to 85°C, C
L
= 50 pF, Input tr = t
f
= 10 ns, unless otherwise noted.)
Parameter
Symbol
f
clk
Figure
No.
2
V
DD
V
2.7
4.5
5.5
2.7
4.5
5.5
2.7
4.5
5.5
2.7
4.5
5.5
2.7
4.5
5.5
2.7
4.5
5.5
-
-
Guaranteed
Limit
dc to 3.0
dc to 4.0
dc to 4.0
150
85
85
300
200
200
0 to 200
0 to 100
0 to 100
150
50
50
900
150
150
10
10
Unit
MHz
Serial Data Clock Frequency (Note: Refer to Clock
t
w
Below)
t
PLH
, t
PHL
Maximum Propagation Delay, CLK to D
out
t
PLZ
, t
PHZ
2, 6
ns
Maximum Disable Time, D
out
Active to High
Impedance
3, 7
ns
t
PZL
, t
PZH
Access Time, D
out
High Impedance to Active
Maximum Output Transition Time, D
out
CL = 50 pF
t
TLH
, t
THL
3, 7
ns
2, 6
ns
CL = 200 pF
2, 6
ns
Maximum Input Capacitance - D
in
, ENB, CLK
Maximum Output Capacitance - D
out
C
in
C
out
pF
pF
MOTOROLA
MC145170-2 Technical Data
For More Information On This Product,
Go to: www.freescale.com
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