NPC CF5034AB 350mhz pecl-output oscillator ic Datasheet

CF5034 series
350MHz PECL-output Oscillator ICs
OVERVIEW
The CF5034 series are differential LVPECL output oscillator ICs. They are made using a BiCMOS process
which allows high-frequency oscillator circuits and differential LVPECL output circuits to be fabricated on a
single chip. Two oscillator modes are supported—350MHz maximum fundamental oscillation mode, and
80MHz to 160MHz 3rd overtone oscillation mode.
The CF5034 series devices require only the connection of a crystal to realize a differential LVPECL output
oscillator circuit.
FEATURES
■
■
■
■
3.3 ± 0.3V operating supply voltage
Oscillator frequency range
• 80MHz to 350MHz fundamental oscillation
mode
• 80MHz to 160MHz 3rd overtone oscillation
mode
40MHz to 350MHz output frequency range
Differential LVPECL output
■
■
■
■
■
fO (oscillator frequency) or fO/2 output frequency,
determined by internal connection
50 ± 5% output duty (measured at output crossing
point)
Standby function: outputs are high impedance
when OE is LOW.
Power-saving pull-up resistor built-in (pin OE)
Chip form (CF5034××)
SERIES LINEUP
Version
Oscillation mode
Recommended oscillator
frequency [MHz]1
CF5034AA
fO
250 to 350
CF5034AB
fO/2
Fundamental
CF5034BA
fO
160 to 250
CF5034BB
fO/2
CF5034DA
–
CF5034DB
80 to 350
(external capacitors required)
CF5034LA
125 to 160
CF5034LB
CF5034MA
Output frequency
fO/2
fO
fO/2
Fundamental or
3rd overtone
80 to 125
CF5034MB
fO
fO
fO/2
1. The recommended oscillator frequency criteria is based on the negative resistance characteristics and cutoff frequency. Note that this may change
depending on the crystal characteristics, thus sufficient allowance should be made.
ORDERING INFORMATION
Device
Package
CF5034××−1
Chip form
NIPPON PRECISION CIRCUITS INC.—1
CF5034 series
PAD LAYOUT
(Unit: µm)
OUTN
9
TEST
VCC2 OE
8
7
6
5
(1160,1310)
DA5034
OUT
Y
1
2
(0,0) VCC
3
4
XIN XOUT GND
X
Chip size: 1.16 × 1.31mm
Chip thickness: 300 ± 30µm
Chip base: GND potential
PAD DESCRIPTION AND DIMENSIONS
Pad dimensions [µm]
Pad No.
Name
I/O
X
Y
1
VCC
–
Supply pin
146
145
2
XIN
I
Oscillator input pin
536
145
3
XOUT
O
Oscillator output pin
809
145
4
GND
–
Ground pin
1015
145
I
Output enable pin. Outputs are high impedance when LOW (oscillator
stopped). Power-saving pull-up resistor built-in.
979
1165
5
OE
Function
6
TEST
I
IC test pin. Leave open circuit for normal operation.
839
1165
7
VCC2
–
Output buffer supply pin
690
1165
8
OUTN
O
Output pin (complementary)
449
1165
9
OUT
O
Output pin (true)
216
1165
BLOCK DIAGRAM
OE
VCC2
VCC
OUT
Rf
1/2
ECL
OUTN
XIN
CXIN
CXOUT
GND
XOUT
NIPPON PRECISION CIRCUITS INC.—2
CF5034 series
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Conditions
Rating
Unit
Supply voltage range
VCC
−0.5 to 7.0
V
Input voltage range
VIN
GND − 0.5 to VCC + 0.5
V
Output voltage range
VOUT
GND − 0.5 to VCC + 0.5
V
Storage temperature range
TSTG
−65 to 150
°C
RECOMMENDED OPERATING CONDITIONS
Rating
Parameter
Symbol
Conditions
Unit
Min
Typ
Max
Operating supply voltage
VCC
3.0
3.3
3.6
V
Input voltage
VIN
GND
–
VCC
V
TOPR
−40
25
85
°C
–
50
–
Ω
40
–
350
MHz
Operating temperature
Output load
RL
Output frequency
fOUT
Terminated to VCC − 2V
ELECTRICAL CHARACTERISTICS
DC Characteristics
Recommended operating conditions unless otherwise noted.
Rating
Parameter
Symbol
Conditions
Unit
Min
Typ
Max
Current consumption 1
IEE1
Measurement cct. 1, OE = open
–
55
88
mA
Current consumption 2
IEE2
Measurement cct. 1, OE = LOW
–
–
30
µA
2.350
2.420
V
VOH
Ta = 0 to 85°C
2.275
OUT/OUTN HIGH-level output voltage
Ta = – 40°C
2.215
2.295
2.420
V
Ta = 0 to 85°C
1.490
1.600
1.680
V
Ta = – 40°C
1.470
1.605
1.745
V
–
–
10
µA
OUT/OUTN LOW-level output voltage
VOL
Measurement cct. 4,
VCC = 3.3V,
OE = open
OUT/OUTN output leakage current
IZ
Measurement cct. 2, OE = LOW
OE HIGH-level input voltage
VIH
Measurement cct. 1
0.7VCC
–
–
V
OE LOW-level input voltage
VIL
Measurement cct. 1
–
–
0.3VCC
V
OE LOW-level input current 1
IIL1
Measurement cct. 2, VIL = 0V
−2
–
−20
µA
OE LOW-level input current 2
IIL2
Measurement cct. 2, VIL = 0.7VCC
−20
–
−200
µA
NIPPON PRECISION CIRCUITS INC.—3
CF5034 series
AC Characteristics
Recommended operating conditions unless otherwise noted.
Rating
Parameter
Symbol
Conditions
Unit
Min
Typ
Max
Output duty cycle 1
Duty 1
Measurement cct. 3,
measured at output crossing point,
Ta = 25°C, VCC = 3.3V
45
–
55
%
Output duty cycle 2
Duty 2
Measurement cct. 3,
measured at 50% output swing,
Ta = 25°C, VCC = 3.3V
45
–
55
%
Measurement cct. 1, Ta = TOPR, f = 350MHz,
Peak to peak of output waveform
0.4
–
–
V
Output swing1
VOpp
Output rise time
tr
Measurement cct. 3,
20 to 80% output swing
–
0.5
1
ns
Output fall time
tf
Measurement cct. 3,
80 to 20% output swing
–
0.5
1
ns
Output enable time2
tOE
Measurement cct. 1, Ta = 25°C
–
–
200
ns
Output disable time2
tOD
Measurement cct. 1, Ta = 25°C
–
–
200
ns
1. The said values are measured by using the NPC standard jig.
2. The built-in oscillator stop function does not operate with normal output immediately when OE goes HIGH. Instead, normal output occurs after the
oscillator startup time has elapsed.
tr
VOpp
tf
OUTN
VOH
80%
20%
OUT
VDD
VOL
VDD – 2V
tW
tPER
DUTY = tW/tPER 100
tOD
VSS
tOE
OE
VDD
VIH
VIL
OE input waveform tr = tf 10ns
VSS
Timing chart
NIPPON PRECISION CIRCUITS INC.—4
CF5034 series
FUNCTIONAL DESCRIPTION
Standby Function
Power-saving Pull-up Resistor
When OE goes LOW, the oscillator stops and the
output pins (OUT, OUTN) become high impedance.
The OE pin pull-up resistance changes in value in
response to the input level (HIGH or LOW). When
OE is LOW (standby state), the pull-up resistance
increases, thereby decreasing the current consumption.
OE
OUT, OUTN
Oscillator
HIGH (or open)
Either fO or fO/2
Normal operation
LOW
High impedance
Stopped
MEASUREMENT CIRCUITS
Measurement Circuit 1
Measurement Circuit 3
A IEE1, IEE2
VCC
C1
Signal
Generator
VCC2
VCC
R1
XIN
VCC2
R1
OUT
XIN
OUT
R1
VT
OE
OUTN
R1
VT
OUTN
XOUT
R1
GND
GND
VOE
R1: 50Ω, VT: VCC − 2V
XIN input signal 500mVp-p, sine wave
C1: 0.001µF
R1: 50Ω
VT: VCC − 2V
VOE: VCC, VIH, VIL
Measurement Circuit 4
Measurement Circuit 2
VCC
VCC2
R1
XIN
VCC
A
0.7VCC
OE
OUT
VT
VCC2
OUTN
XOUT
OUT
A
OUTN
A
R1
TEST
GND
GND
R1: 50Ω, VT: VCC − 2V
XOUT = HIGH: OUT pin is fixed HIGH (VOH).
OUTN pin is fixed LOW (VOL).
XOUT = LOW: OUT pin is fixed LOW (VOL).
OUTN pin is fixed HIGH (VOH).
NIPPON PRECISION CIRCUITS INC.—5
CF5034 series
Please pay your attention to the following points at time of using the products shown in this document.
The products shown in this document (hereinafter “Products”) are not intended to be used for the apparatus that exerts harmful influence on
human lives due to the defects, failure or malfunction of the Products. Customers are requested to obtain prior written agreement for such
use from NIPPON PRECISION CIRCUITS INC. (hereinafter “NPC”). Customers shall be solely responsible for, and indemnify and hold NPC
free and harmless from, any and all claims, damages, losses, expenses or lawsuits, due to such use without such agreement. NPC reserves
the right to change the specifications of the Products in order to improve the characteristic or reliability thereof. NPC makes no claim or
warranty that the contents described in this document dose not infringe any intellectual property right or other similar right owned by third
parties. Therefore, NPC shall not be responsible for such problems, even if the use is in accordance with the descriptions provided in this
document. Any descriptions including applications, circuits, and the parameters of the Products in this document are for reference to use the
Products, and shall not be guaranteed free from defect, inapplicability to the design for the mass-production products without further testing
or modification. Customers are requested not to export or re-export, directly or indirectly, the Products to any country or any entity not in
compliance with or in violation of the national export administration laws, treaties, orders and regulations. Customers are requested
appropriately take steps to obtain required permissions or approvals from appropriate government agencies.
NIPPON PRECISION CIRCUITS INC.
4-3, Fukuzumi 2-chome, Koto-ku,
Tokyo 135-8430, Japan
Telephone: +81-3-3642-6661
Facsimile: +81-3-3642-6698
http://www.npc.co.jp/
Email: [email protected]
NC0116CE
2003.04
NIPPON PRECISION CIRCUITS INC.—6
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