The 5037 series are 2.5V operation, LVDS output oscillator ICs. They support 80MHz to 400MHz 3rd over-
tone oscillation and 80MHz to 600MHz fundamental oscillation. The 5037 series can be used to construct
high-frequency LVDS output oscillators.
FEATURES
I
I
I
I
2.375 to 3.6V operating supply voltage range
Recommended oscillation frequency range (varies
with version)
• 80MHz to 600MHz fundamental oscillation
• 80MHz to 400MHz 3rd overtone oscillation
– 40 to 85°C operating temperature range
LVDS output
I
I
I
I
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××, CF5037×××)
SERIES CONFIGURATION
Version
5037A1
5037B×
5037C×
5037D×
5037E×
5037D1T
5037A1N
No
5037B1N
Yes
2
≥
2.5
≥
2
Built-in C0
cancellation circuit
Recommended C0
value [pF]
Recommended
crystal unit/
resonator
Fundamental,
3rd overtone,
SAW
Fundamental,
SAW
Fundamental,
3rd overtone,
SAW
Fundamental,
SAW
Recommended
oscillation frequency
range
*1
[MHz]
80 to 120
100 to 180
150 to 250
250 to 400
400 to 600
250 to 400
80 to 120
110 to 180
Output frequency
*2
f
O
5037A1
5037B1
5037C1
5037D1
5037E1
5037D1T
5037A1N
5037B1N
f
O
/2
–
5037B2
*3
5037C2
5037D2
(5037E2)
–
–
–
≤
2.5
*1. The recommended oscillation frequency is a yardstick value derived from the crystal used for NPC characteristics authentication. However, the oscilla-
tor 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. This version in parentheses ( ) is under development. Please ask our Sales & Marketing section for further detail.
*3. Minimum output frequency: 80MHz
ORDERING INFORMATION
Device
CF5037××–1
Form CF: Chip (Die) form
Package
Version name
CF5037
Chip form
−
Chip thickness 1: 300
±
30µm
3: 180
±
20µm
N: Not built-in C0 cancellation circuit
T: 3rd overtone
Frequency divider function
Oscillation frequency range
CF5037D1T–1
CF5037×1N–3
SEIKO NPC CORPORATION —1
5037 series
PAD LAYOUT
(Unit:
µm)
OUT OUTN VCC2 OE
8
7
6
5
(550, 650)
Y
TEST
9
(0,0)
1
2
3
4
(−550,
−650)
VCC
XIN XOUT GND
X
Chip size: 1.10
×
1.30mm
Chip thickness: 300 ± 30µm, 180 ± 20µm
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 No.
1
2
3
4
5
6
7
8
9
Name
VCC
XIN
XOUT
GND
OE
VCC2
OUTN
OUT
TEST
I/O
*1
–
I
O
–
I
–
O
O
–
(+) supply pin
Oscillator input pin
Oscillator output pin
(–) ground pin
Output enable pin. Outputs are high impedance when LOW (oscillator
stopped). Power-saving pull-up resistor built-in.
(+) output buffer supply pin
Complementary output pin
Output pin
IC test pin. Leave open circuit for normal operation.
Pad dimensions [µm]
Function
X
–390
–39
190
415
346
209
–27
–306
–414
Y
–520
–520
–520
–520
520
520
520
520
28
*1. I: input, O: output
BLOCK DIAGRAM
VCC
XIN
Colpitts
OSC
1/2
LVDS
VCC2
OUT
OUTN
XOUT
OE
GND
SEIKO NPC CORPORATION —2
5037 series
OSCILLATOR CIRCUIT CONSTANT
The 5037 series oscillator setting varies with device version to optimize characteristics over the recommended
operating frequency range.
5037A1, 5037B×, 5037C×, 5037D×, 5037E×, 5037D1T
The 5037A1/B×/C×/D×/D1T versions are suitable for use of crystal unit with large C0 value (approximately
C0
≥
2.0pF (5037A1/B×/C×/D×)/ C0
≥
2.5pF (5037D1T)). The 5037E× version is suitable for use of crystal
unit with C0 value of approximately 2pF.
Version
5037A1
5037B×
5037C×
5037D×
5037E×
5037D1T
Recommended crystal
unit/ resonator
Fundamental,
3rd overtone,
SAW
Fundamental,
SAW
Fundamental,
3rd overtone,
SAW
Built-in capacitance
*1
[pF]
C
XIN
12
8
6
5
5
5
C
XOUT
12
8
6
5
5
5
Recommended oscillation
frequency range
*2
[MHz]
80 to 120
100 to 180
150 to 250
250 to 400
400 to 600
250 to 400
*1. The oscillator internal capacitance values includes parasitic capacitance.
*2. The recommended oscillation 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
C
XIN
XIN
R
PD
R
f
C
XOUT
XOUT
Oscillator block equivalent circuit
The 5037A1/B×/C×/D×(T)/E× 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.
The XOUT pin of 5037E× version emphasizes high frequency characteristics. Accordingly, its electrostatic withstand voltage is significantly
lower than that of the other pins. ESD breakdown prevention handling precautions are strongly recommended.
SEIKO NPC CORPORATION —3
5037 series
5037A1N, 5037B1N
The 5037A1N/B1N versions are suitable for use of crystal unit with small C0 value (approximately C0
≤
2.5pF).
Version
5037A1N
5037B1N
Recommended crystal
unit/ resonator
Fundamental,
SAW
Built-in capacitance
*1
[pF]
C
XIN
12
11
C
XOUT
16
13
Recommended oscillation
frequency range
*2
[MHz]
80 to 120
110 to 180
*1. The oscillator internal capacitance values includes parasitic capacitance.
*2. The recommended oscillation 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
C
XIN
XIN
R
PD
R
f
C
XOUT
XOUT
Oscillator block equivalent circuit
SEIKO NPC CORPORATION —4
5037 series
SPECIFICATIONS
Absolute Maximum Ratings
Parameter
Supply voltage range
*1
Input voltage range
*1 *2
Output voltage range
*1 *2
Storage temperature range
*3
Symbol
V
CC
V
IN
V
OUT
T
STG
Conditions
VCC, VCC2 pins
XIN, OE pins
XOUT, OUT/OUTN pins
Chip form
Rating
−0.5
to +5.0
GND
−
0.5 to V
CC
+ 0.5
GND
−
0.5 to V
CC
+ 0.5
−65
to +150
Unit
V
V
V
°C
*1. This parameter rating is the values that must never exceed even for a moment. This product may suffer breakdown if this parameter rating is
exceeded. Operation and characteristics are guaranteed only when the product is operated at recommended operating conditions.
*2. V
CC
is a V
CC
value of recommended operating conditions.
*3. When stored in nitrogen or vacuum atmosphere applied to IC itself only (excluding packaging materials).
Recommended Operating Conditions
Rating
Parameter
Operating supply voltage
Operating supply voltage
difference
Input voltage
Operating temperature
Output load
Output frequency
*1
Symbol
V
CC
∆V
CC
V
IN
T
OPR
R
L
f
OUT
Between OUT and OUTN pins
Conditions
Min
VCC, VCC2 pins
Voltage difference between VCC and
VCC2 pins
XIN, OE pins
2.375
–0.1
GND
−40
99
80
Typ
–
–
–
+25
100
–
Max
3.6
+0.1
V
CC
+85
101
600
V
V
V
°C
Ω
MHz
Unit
*1. Output frequency varies by version. Refer to “SERIES CONFIGURATION”.
Note. Since it may influence the reliability if it is used out of range of recommended operating conditions, this product should be used within this range.
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