ETC IMI4343YB

IMI4343
PHASE DETECTOR
June 1997
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
PRODUCT DESCRIPTION
PRODUCT FEATURES
The IMI4343 is a member of a family of phase lock
loop synthesizer ICs from International Microcircuits.
This is a phase-frequency detector intended for use
with high reference frequencies. Compatible with
sinewave, ECL, TTL, and CMOS input waveforms,
makes the IMI4343 extremely versatile in PLL
applications.
The IMI4343 has a Type IV phase frequency detector
which has eliminated by design the inherent dead zone
which causes crossover distortion at the critical center
lock point. The IMI circuitry enables consistent low
noise loop designs using the simple single ended
charge pump output. Differential charge pump outputs
are also provided for those who require a more
sophisticated differential active loop filter design.
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Useful input frequency > 50 MHz
Low power consumption CMOS
-163 dBc/Hz total phase noise floor
No dead zone, by design
High gain differential outputs
380 µA Current Mode Charge Pump
Unambiguous PLL acquisition
Zero degree phase difference at lock
ECL compatible inputs when AC coupled
Sinewave inputs when AC coupled
TTL, CMOS inputs can be DC coupled
On-chip 3rd overtone reference oscillator
Small SO-8 package for SMT available
3-volt and 5-volt characterizations
BLOCK DIAGRAM
VDD
8
OSCout 2
7
PFD
OSCin 1
1
Fin
VSS
6
1
2
2
PDout
PHIR
1
1
2
2
3
Phase
Freq.
Detector
5
PHIV
4
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
Rev 1.1
6/9/97
Page 1 of 7
IMI4343
PHASE DETECTOR
June 1997
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
MAXIMUM RATINGS
Voltage Relative to VSS:
-0.3V to 7V
Voltage Relative to VDD
0.3V
Storage Temperature:
-65ºC to 150ºC
Ambient Temperature:
-45ºC to 85 ºC
Recommended Operating Range:
2.7V - 5.5V
This device contains circuitry to protect the inputs
against damage due to high static voltages or electric
field; however, precautions should be taken to avoid
application of any voltage higher than the maximum
rated voltages to this circuit. For proper operation, Vin
and Vout should be constrained to the range:
VSS<(Vin or Vout)< VDD
Unused inputs must always be tied to an appropriate
logic voltage level (either VSS or VDD).
PIN DESCRIPTIONS
PIN NO.
NAME
DESCRIPTION
1
OSCin
This input is self biased and is designed to be AC coupled for low level sinewave signals.
2
OSCout
6
Fin
4
8
3
5
7
VSS
VDD
PHIR
PHIV
Pdout
Reference signal output can be used in conjunction with OSCin to form an internal crystal
oscillator.
This input is intended to be AC coupled. DC coupling can be used for CMOS logic level
input signals.
Circuit ground.
Circuit positive power supply.
Phase detector output. This signal goes LOW when the feedback frequency is too low.
Phase detector output. This signal goes LOW when the feedback frequency is too high.
Single-ended charge pump output, usually used with passive loop filters. This signal
operates according to the following:
æ Frequency fv>fr at the phase detector: negative pulses.
æ Frequency fv<fr at the phase detector: positive pulses.
æ Frequency fv = fr at the phase detector: high-impedance state.
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
Rev 1.1
6/9/97
Page 2 of 7
IMI4343
PHASE DETECTOR
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
June 1997
PLL OPERATING CHARACTERISTICS
VDD = 5 VOLTS
-40ºC
Characteristics
Dynamic
Symbol
Min
Max
25ºC
Min
Typ
85ºC
Max
Min
Max
Unit
Conditions
Operating
fin,
Sine
50
50
45
MHz
Frequency
fosc
Square
50
50
45
MHz
Phase Noise
Floor
PDNF
Pin
Cin
-
10
-
6
10
-
10
pF
Capacitance
Cout
-
10
-
6
10
-
10
pF
Input
VIL
1
1.5
-
2.75
1.5
-
1.5
Vdc
Voltages
VIH
3.5
-
3.5
2.75
-
3.5
-
Output
VOL
-
0.05
-
0.0
0.05
-
0.05
Voltages
VOH
4.9
5
-
4.95
5.0
-
4.95
-
Logic
2.4
-
2.0
2.8
-
1.6
-
OSCout
1.2
-
1.0
1.4
-
0.8
-
mA
VOL = 0.40
Logic
-2.4
-
-2.0
-2.8
-
-1.6
-
mA
VOH = 4.0
OSCout
-1.2
-
-1.0
-1.4
-
-0.8
-
mA
VOH = 4.0
µA
Vdd = 5V @ 25°C
IOL
Static
Output
Current
Charge Pump
Supply
Currents
IOH
-160
Icp
dBc/H
z
380
Vdc
IDD
-
10
-
7
10
-
10
mA
fosc=fin-10 MHz
ISB
-
150
-
40
150
-
150
µA
fosc=fin=0
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
Rev 1.1
6/9/97
Page 3 of 7
IMI4343
PHASE DETECTOR
June 1997
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
PLL OPERATING CHARACTERISTICS
VDD = 3 VOLTS
-40ºC
Characteristics
Dynamic
Symbol
Min
Max
25ºC
Min
70ºC
Typ
Max
-
Min
Max
Unit
50
45
MHz
50
45
Operating
fin,
Sine
50
Frequency
fosc
Sine
50
Phase Noise
Floor
PDNF
Pin
Cin
-
10
-
6
10
pF
Capacitance
Cout
-
10
-
6
10
pF
Input
VIL
-
0.9
-
1.35
0.9
Voltages
VIH
2.1
-
2.1
1.65
-
Output
VOL
-
0.05
-
0.0
Voltages
VOH
2.95
-
2.95
IOL
Static
Output
Current
Charge Pump
Supply
Currents
IOH
-155
Conditions
MHz
dBc/Hz
-
1.5
Vdc
0.05
-
0.05
Vdc
3.0
-
2.95
-
Logic
1.6
-
1.4
2.0
-
OSCout
0.8
-
0.7
1.0
-
mA
VOL = 0.30
Logic
-1.6
-
-1.4
-2.0
-
mA
VOH = 2.4
OSCout
-1.6
-
-0.7
-1.0
-
mA
VOL = 2.4
µA
Vdd = 3V @ 25°C
mA
fosc=fin-10 MHz
µA
fosc=fin=0
Icp
240
IDD
-
5
-
3
5
ISB
-
150
-
40
150
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
-
5
Rev 1.1
6/9/97
Page 4 of 7
IMI4343
PHASE DETECTOR
June 1997
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
Sinewave Sensitivity vs. Frequency
VDD = 3 VDC
Sinewave Sensitivity vs. Frequency
VDD = 5 VDC
0
0
-5
-10
-15
dBm (50 ohms)
dBm (50 ohms)
-5
Fin
-20
OSCin
-25
-30
-10
Fin
-15
OSCin
-20
-25
-35
-40
-30
0
10
20
30
40
50
0
10
20
MHz
30
40
50
MHz
IDD vs. Frequency
20
mA
15
5 VDC
10
3 VDC
5
0
0
10
20
30
40
50
MHz
Charge Pump PD Gain
1
0.5
0.75
0.4
mA/radian
mV/radian
Differential PD Gain
0.5
0.25
0.3
0.2
0.1
0
5 VDC
0
20
40
60
3 VDC
0
5 VDC
0
20
60
3 VDC
MHz
MHz
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
40
Rev 1.1
6/9/97
Page 5 of 7
IMI4343
PHASE DETECTOR
June 1997
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
CONNECTION DIAGRAM
OSCin
OSCout
PHIR
VSS
1
2
3
4
8
7
6
5
VDD
Pdout
Fin
PHIV
PHASE DETECTOR OUTPUT WAVEFORMS
OSCin
Fin
PDout
PHIR
PHIV
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
Rev 1.1
6/9/97
Page 6 of 7
IMI4343
PHASE DETECTOR
June 1997
CMOS LSI
PLL FREQUENCY SYNTHESIZERS
PACKAGE DRAWING AND DIMENSIONS
8-PIN OUTLINE DIMENSIONS
C
MILLIMETERS
L
E
H
a
D
A2
MIN
NOM
MAX
MIN
NOM
MAX
A
-
2.03
-
-
0.080
-
A1
0.0020
0.009
0.0015
0.060
0.22
0.38
A2
0.090
0.092
0.111
2.29
2.34
2.39
B
0.35
.040
0.45
0.014
.016
.018
C
-
.20
-
-
.008
-
D
5.15
5.25
5.35
0.205
0.207
0.210
E
5.20
5.30
5.40
0.205
0.210
0.213
0.050 BSC
e
A
A1
e
SYMBOL
INCHES
H
1.27 BSC
7.70
8.00
8.10
0.303
0.310
0.318
0.5
0.65
0.8
0.020
0.025
0.031
a
B
L
SOP PACKAGE
ORDERING INFORMATION
Part Number
Package Type
IMI4343xYB
8-Pin SOP
Production Flow
Industrial, -45°C to +85°C
Note: The “x” following the IMI Device Number denotes the device revision. The ordering part number is formed by a
combination of device number, device revision, package style, and screening as shown below.
Marking: Example:
4343xYB
Date Code
Lot #
IMI4343xYB
Flow
B = Industrial, -45°C to +85°C
Package
Y = SOP
Revision
IMI Device Number
INTERNATIONAL MICROCIRCUITS, INC. 525 LOS COCHES ST.
MILPITAS, CA 95035 TEL: 408-263-6300 FAX 408-263-6571
Rev 1.1
6/9/97
Page 7 of 7