NPC CF5037E2-1 2.5v lvds output oscillator ic Datasheet

CF5037 series
2.5V LVDS Output Oscillator ICs
OVERVIEW
The CF5037 series are 2.5V operation, LVDS output oscillator ICs. They support 80MHz to 250MHz 3rd overtone oscillation and 80MHz to 700MHz fundamental oscillation. The CF5037 series can be used to construct
high-frequency LVDS output oscillators.
FEATURES
■
■
■
■
2.375 to 3.6V operating supply voltage range
Operating frequency range (varies with version)
• 80MHz to 700MHz fundamental oscillation
• 80MHz to 250MHz 3rd overtone oscillation
– 40 to 85°C operating temperature range
LVDS output
■
■
■
■
Standby function
• Outputs are high impedance when OE is LOW.
(oscillator stops)
Power-saving pull-up resistor built-in (pin OE)
BiCMOS process
Chip form (CF5037××)
SERIES CONFIGURATION
Version
Oscillation mode
CF5037A1
CF5037B1
CF5037B2*2
CF5037C1
Fundamental
or
3rd overtone
CF5037D1
Fundamental
(CF5037F1)
(CF5037V2)
fO
100 to 180
400 to 600
600 to 700
(CF5037F2)
(CF5037V1)
80 to 120
250 to 400
(CF5037D2)
(CF5037E2)
Output frequency
150 to 250
CF5037C2
(CF5037E1)
Recommended operating
frequency range*1 [MHz]
Oscillator constants determined
by external components
(Rf, CXIN, CXOUT)
fO
fO/2
fO
fO/2
fO
fO/2
fO
fO/2
fO
fO/2
fO
80 to 400
fO/2
*1. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal
characteristics and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.
*2. Minimum output frequency: 80MHz
Note. These versions in parentheses ( ) are under development. Please ask our Sales & Marketing section for further detail.
ORDERING INFORMATION
Device
Package
CF5037××–1
Chip form
SEIKO NPC CORPORATION —1
CF5037 series
PAD LAYOUT
(Unit: µm)
OUT OUTN VCC2 OE
8
Y
TEST
7
6
2
3
(1100,1300)
5
9
DB5037
1
(0,0) VCC
4
XIN XOUT GND
X
Chip size: 1.10 × 1.30mm
Chip thickness: 300 ± 30µm
PAD size: 150µm × 100µm (VCC, OUT, OUTN pins)
100µm × 100µm (excluding VCC, OUT, OUTN pins)
Chip base: GND potential
Note: The TEST pin is not used during normal operation.
PIN DESCRIPTION and PAD DIMENSIONS
Pad dimensions [µm]
Pad No.
Name
I/O
Function
X
Y
1
VCC
–
(+) supply pin
160
130
2
XIN
I
Oscillator input pin
511
130
3
XOUT
O
Oscillator output pin
740
130
4
GND
–
(–) ground pin
965
130
5
OE
I
Output enable pin. Outputs are high impedance when LOW (oscillator
stopped). Power-saving pull-up resistor built-in.
896
1170
6
VCC2
–
(+) output buffer supply pin
756
1170
7
OUTN
O
Output pin (complementary)
523
1170
8
OUT
O
Output pin (true)
244
1170
9
TEST
I
IC test pin. Leave open circuit for normal operation.
136
678
SEIKO NPC CORPORATION —2
CF5037 series
BLOCK DIAGRAM
VCC
VCC2
XIN
OUT
Colpitts
OSC
1/2
LVDS
OUTN
XOUT
GND
OE
OSCILLATOR CIRCUIT CONSTANT
The CF5037 series oscillator setting varies with device version to optimize characteristics over the recommended operating frequency range.
Version
CF5037A1
CF5037B×
CF5037C×
Built-in capacitance*1 *2[pF]
Oscillation mode
Fundamental
or
3rd overtone
CF5037D×
CF5037E×
Fundamental
CF5037F×
Recommended operating
frequency range*2 *3 [MHz]
CXIN
CXOUT
12
12
80 to 120
8
8
100 to 180
6
6
150 to 250
5
5
250 to 400
(5)
(5)
(400 to 600)
(4)
(4)
(600 to 700)
*1. The oscillator internal capacitance values includes parasitic capacitance.
*2. Values in parentheses ( ) are provisional only.
*3. The recommended operating frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscillator frequency band is not guaranteed. Specifically, the characteristics can vary greatly due to crystal characteristics
and mounting conditions, so the oscillation characteristics of components must be carefully evaluated.
Oscillator Equivalent Circuit
C0 cancel
CXIN
Rf
XIN
RPD1
CXOUT
XOUT
Oscillator block equivalent circuit
The CF5037 series oscillator circuit has a C0 cancel circuit built-in to improve the oscillator margin. If power is applied when there is an
open circuit between XIN and XOUT, self oscillation may occur, which is not abnormal. Users should confirm that the oscillator operates
normally when a crystal unit is connected.
SEIKO NPC CORPORATION —3
CF5037 series
SPECIFICATIONS
Absolute Maximum Ratings
Parameter
Symbol
Conditions
Rating
Unit
Supply voltage range
VCC
−0.5 to +5.0
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
Chip form
Recommended Operating Conditions
Rating
Parameter
Symbol
Conditions
Unit
Min
Typ
Max
Operating supply voltage
VCC
2.375
–
3.6
V
Input voltage
VIN
GND
–
VCC
V
TOPR
−40
+25
+85
°C
99
100
101
Ω
80
–
700
MHz
Operating temperature
Output load
Output frequency
RL
fOUT
Between OUT and OUTN
SEIKO NPC CORPORATION —4
CF5037 series
Electrical Characteristics
3.3V operation
VCC = 3.0 to 3.6V, GND = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating*1
Parameter
Symbol
Conditions
5037A1, B×, C×, D×
Unit
Min
Typ
Max
–
45
66
mA
Current consumption 1
IEE1
Measurement cct. 1,
OE = open
–
(53)
(73)
mA
Current consumption 2
IEE2
Measurement cct. 1, OE = LOW
–
–
30
µA
HIGH-level output voltage
VOH
–
1.43
1.6
V
LOW-level output voltage
VOL
Measurement cct. 1, OE = open, RL = 100Ω,
OUT, OUTN pins, f = 100MHz
0.9
1.1
–
V
Measurement cct. 1, OE = open, RL = 100Ω,
OUT–OUTN differential voltage, f = 100MHz
247
330
454
mV
–
–
50
mV
Measurement cct. 1, OE = open, RL = 100Ω,
OUT–OUTN mid-level potential, f = 100MHz
1.125
1.25
1.375
V
–
–
50
mV
Differential output voltage
VOD
Differential output error
∆VOD
Offset voltage
VOS
Offset error
∆VOS
5037E×, F×
Output leakage current
IZ
Measurement cct. 2, OE = LOW, OUT, OUTN pins
–
–
10
µA
HIGH-level input voltage
VIH
Measurement cct. 1, OE pin
0.7VCC
–
–
V
LOW-level input voltage
VIL
Measurement cct. 1, OE pin
–
–
0.3VCC
V
LOW-level input current 1
IIL1
Measurement cct. 1, VIL = 0V, OE pin
−2
–
−20
µA
IIL2
Measurement cct. 1, VIL = 0.7VCC, OE pin
−20
–
−200
µA
Measurement cct. 2, XIN pin
12
24
48
kΩ
LOW-level input current 2
Pull-down resistance 1
RPD1
*1. Values in parentheses ( ) are provisional only.
2.5V operation
VCC = 2.375 to 2.625V, GND = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating*1
Parameter
Symbol
Conditions
Unit
Min
Typ
Max
5037A1, B×, C×, D×
–
43
63
mA
5037E×, F×
–
(51)
(70)
mA
IEE1
Measurement cct. 1,
OE = open
Current consumption 2
IEE2
Measurement cct. 1, OE = LOW
–
–
30
µA
HIGH-level output voltage
VOH
1.43
1.6
V
LOW-level output voltage
VOL
Measurement cct. 1, OE = open, RL = 100Ω,
OUT, OUTN pins, f = 100MHz
–
0.9
1.1
–
V
Differential output voltage
VOD
247
330
454
mV
Differential output error
∆VOD
Measurement cct. 1, OE = open, RL = 100Ω,
OUT–OUTN differential voltage, f = 100MHz
–
–
50
mV
Offset voltage
VOS
1.25
1.375
V
Offset error
∆VOS
Measurement cct. 1, OE = open, RL = 100Ω,
OUT–OUTN mid-level potential, f = 100MHz
1.125
–
–
50
mV
–
–
10
µA
Current consumption 1
Output leakage current
IZ
Measurement cct. 2, OE = LOW, OUT, OUTN pins
HIGH-level input voltage
VIH
Measurement cct. 1, OE pin
0.7VCC
–
–
V
LOW-level input voltage
VIL
Measurement cct. 1, OE pin
–
–
0.3VCC
V
LOW-level input current 1
IIL1
Measurement cct. 1, VIL = 0V, OE pin
−2
–
−20
µA
LOW-level input current 2
IIL2
Measurement cct. 1, VIL = 0.7VCC, OE pin
−10
–
−150
µA
Measurement cct. 2, XIN pin
12
24
48
kΩ
Pull-down resistance 1
RPD1
*1. Values in parentheses ( ) are provisional only.
SEIKO NPC CORPORATION —5
CF5037 series
Switching Characteristics
3.3V operation
VCC = 3.0 to 3.6V, GND = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating*1
Parameter
Output duty cycle
Output swing*2
Symbol
Duty
VOpp
Conditions
Measurement cct. 3, measured at
0V differential output (crossing
point), Ta = 25°C, VCC = 3.3V
Measurement cct. 3, Ta = TOPR,
differential output waveform peakto-peak
Unit
Min
Typ
Max
f < 350MHz
45
–
55
%
f ≥ 350MHz
40
–
60
%
5037A1: f = 120MHz
0.35
–
–
V
5037B×: f = 180MHz
0.35
–
–
V
5037C×: f = 250MHz
0.35
–
–
V
5037D×: f = 400MHz
0.35
–
–
V
5037E×: f = 600MHz
(0.35)
–
–
V
5037F×: f = 700MHz
(0.35)
–
–
V
Output rise time
tr
Measurement cct. 3, 20 to 80% differential output swing
–
0.3
0.7
ns
Output fall time
tf
Measurement cct. 3, 80 to 20% differential output swing
–
0.3
0.7
ns
Output enable time*3
tOE
Measurement cct. 1, Ta = 25°C
–
–
2
ms
Output disable time
tOD
Measurement cct. 1, Ta = 25°C
–
–
200
ns
*1. Values in parentheses ( ) are provisional only.
*2. The said values are measured by using the NPC standard jig.
*3. 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.
SEIKO NPC CORPORATION —6
CF5037 series
2.5V operation
VCC = 2.375 to 2.625V, GND = 0V, Ta = −40 to +85°C unless otherwise noted.
Rating*1
Parameter
Symbol
Output duty cycle
Duty
Output swing*2
VOpp
Conditions
Unit
Measurement cct. 3, measured at
0V differential output (crossing
point), Ta = 25°C, VCC = 2.5V
Measurement cct. 3, Ta = TOPR,
differential output waveform peakto-peak
Min
Typ
Max
f < 350MHz
45
–
55
%
f ≥ 350MHz
40
–
60
%
5037A1: f = 120MHz
0.25
–
–
V
5037B×: f = 180MHz
0.25
–
–
V
5037C×: f = 250MHz
0.25
–
–
V
5037D×: f = 400MHz
0.25
–
–
V
5037E×: f = 600MHz
(0.25)
–
–
V
5037F×: f = 700MHz
(0.25)
–
–
V
Output rise time
tr
Measurement cct. 3, 20 to 80% differential output swing
–
0.3
0.7
ns
Output fall time
tf
Measurement cct. 3, 80 to 20% differential output swing
–
0.3
0.7
ns
Output enable time*3
tOE
Measurement cct. 1, Ta = 25°C
–
–
2
ms
Output disable time
tOD
Measurement cct. 1, Ta = 25°C
–
–
200
ns
*1. Values in parentheses ( ) are provisional only.
*2. The said values are measured by using the NPC standard jig.
*3. 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.
tPER
tW
OUTN
VOD'
VOD
Hi-Z
OUT
OUT-OUTN
0
80%
80%
0
0
VOpp
20%
20%
tr
VOS
tf
∆VOS
tOD
OE
VIH
tOE
VIL
OE input waveform tr = tf 10ns
DUTY = 100tW/tPER (%) @ crossing point
∆VOD = |VOD' − VOD|
Timing chart
SEIKO NPC CORPORATION —7
CF5037 series
FUNCTIONAL DESCRIPTION
Standby Function
When OE goes LOW, the oscillator stops and the output pins (OUT, OUTN) become high impedance.
OE
OUT, OUTN
Oscillator
HIGH (or open)
Either fO or fO/2
Normal operation
LOW
High impedance
Stopped
Power-saving Pull-up Resistor
The OE pin pull-up resistance changes in response to the input level (HIGH or LOW). When OE is tied LOW
(standby state), the pull-up resistance becomes large, reducing the current consumed by the resistance. When
OE is open circuit, the pull-up resistance becomes small, decreasing the susceptibility to the effects of external
noise.
SEIKO NPC CORPORATION —8
CF5037 series
MEASUREMENT CIRCUITS
Measurement Circuit 1
A IEE1, IEE2
VCC2
VCC
OUT
R1
C1
Signal
Generator
R1
XOUT
R1
OE
VOD,∆VOD
OUTN
GND,TEST
VOS,∆VOS
VOH,VOL
IIL1, IIL2
A
VIH,VIL
500mVp-p, sine wave
C1: 0.01µF
R1: 49.9Ω
Note. Connect 0.01µF and approximately 10µF bypass capacitors between supply (VCC, VCC2) and
GND. Note that the 0.01µF capacitor should have circuit wiring as short as possible.
Measurement Circuit 2
VCC
A
IPD1
VCC2
OUT
XIN
IZ
A
RPD1=VCC/IPD1
IZ
OUTN
OE
A
GND
Measurement Circuit 3
VCC
XIN
VCC2
OUT
Test point
R1
Duty,VOpp,tr,tf
XOUT
OE
R1
OUTN
Test point
GND
R1: 49.9Ω
Note 1. Connect 0.01µF and approximately 10µF bypass capacitors between supply (VCC, VCC2) and
GND. Note that the 0.01µF capacitor should have circuit wiring as short as possible.
Note 2. The recommended differential probe used for measurement should have 5GHz analog
bandwidth, ≥ 50kΩ impedance, and < 1pF capacitive load.
Note 3. If common-mode noise becomes a problem, a DC decoupling capacitor (approximately 1000pF)
and terminating resistor matching the common-mode signal should be connected to the output
center tap.
SEIKO NPC CORPORATION —9
CF5037 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 SEIKO NPC CORPORATION (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.
SEIKO NPC CORPORATION
15-6, Nihombashi-kabutocho, Chuo-ku,
Tokyo 103-0026, Japan
Telephone: +81-3-6667-6601
Facsimile: +81-3-6667-6611
http://www.npc.co.jp/
Email: [email protected]
NC0309CE
2006.04
SEIKO NPC CORPORATION —10
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