Rohm BU2370FV Vco phase comparator for tv Datasheet

BU2370FV
Multimedia ICs
VCO + phase comparator for TV
BU2370FV
BU2370FV is a VCO+phase comparator IC used to construct PLL system. Adopting external LPF and divider can
generate the PLL system and low jitter clocks. Output can be switched into half.
zExternal dimensions (Unit : mm)
zApplications
TV
5.0 ± 0.2
14
8
1
7
0.3Min.
1.15 ± 0.1 6.4 ± 0.3
4.4 ± 0.2
0.1
zFeatures
1) VCO can oscillate output (20MHz to 60MHz)
2) High-speed edge trigger type phase comparator
3) Can control VCO, and phase comparator
independently
4) 3.3V signal power supply
5) Small SSOP-B14 package
0.15 ± 0.1
0.1
0.22 ± 0.1
0.65
SSOP-B14
zAbsolute maximum ratings (Ta=25°C)
Parameter
Symbol
Limits
Unit
Power supply voltalge
VDD
−0.5 to +7.0
V
Inpuit voltage
VIN
−0.5 to VDD+0.5
V
Tstg
−30 to +125
°C
Pd
350
mW
Operating temperature range
Power dissipation
∗An operation is not guranteed.
∗Derating : 3.5mW/°C for operation above Ta=25°C.
∗Radiation resistance design is not used.
∗Power dissipation is measured when BU2370FV is placed on the board.
zRecommended operating conditions
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power supply voltage
VDD
3.15
−
3.45
V
Input H voltage range
VIH
0.8VDD
−
VDD
V
Input L voltage range
VIL
0
−
0.2VDD
V
Topr
−20
−
70
°C
CL
−
−
15
pF
Operating temperature
Output load
1/5
VCO
β Select
VCO Control
input
Force DC
VCO Output
VCO
VSS
VCO
VDD
OUT
VSS
OUT
VDD
VCO
1/2
Level
Shifter
Phase
Detecter
Nmos
Pmos
DVSS
DVDD
Phase Detect
Output-Enable
Phase Detect
Ouput
VCO Powerdown
and Output
Frequency
Input2
Frequency
Input1
BU2370FV
Multimedia ICs
zBlock diagram
2/5
BU2370FV
Multimedia ICs
zPin descriptions
Pin No.
Functions
Pin name
1
Out VDD
VDD for VCO-OUT
2
Out GND
GND for VCO-OUT
3
VCO OUT
VCO output
4
VCO VDD
VCO analog VDD
5
VCO GND
VCO analog GND
6
VCO IN
VCO control Pin
7
FSEL1
VCO β collect H : 30[MHz/V] L : 15[MHz/V]
8
PDE
PD control pin H : PD Disable (Hi impedance) L : PD Enable
9
PD OUT
PD output
10
DGND
Digital GND for PD
11
DVDD
Digital VDD for PD
12
VCOE
VCO control Pin H : VCO out Disable ( output L fix) L : VCO out Enable
13
FIN-A
PD input
14
FIN-B
PD input
3/5
BU2370FV
Multimedia ICs
zInput / output circuits
Pin No.
Equivalent circuit
Output PIN
(Pin 3 )
From inside IC
Output PIN
(Pin 9)
From inseide IC
From inseide IC
Input PIN (Schmitt triger)
(Pin 7, 8, 12, 13, 14)
To inside IC
Input PIN
(Pin 6)
4/5
BU2370FV
Multimedia ICs
zElectrical characteristics (Unless otherwise noted,Ta=25°C, VCC=3.3V)
Symbol
Min.
Typ.
Max.
Unit
Operating current consumption
VCO
Parameter
IDD
−
20
−
mA
Input control voltage range (Pin 6)
VID
1
−
3
V
Input H voltage (Pin 6)
IIH
−0.1
0
0.1
µA
Inflow current when VDD applied to input
Input L voltage (Pin 6)
IIL
−0.1
0
0.1
µA
Outflow current when GND applied to input
Max.oscillation frequency 1
FMAX1
30
−
−
MHz
FSEL=L
Max.oscillation frequency 2
FMAX2
60
−
−
MHz
FSEL=H
Min.oscillation frequency 1
FMIN1
−
−
15
MHz
FSEL=L
Min.oscillation frequency 2
FMIN2
−
−
30
MHz
FSEL=H
β1
−
15
−
MHz/V
FSEL=L
Frequency sensitivity 1
Conditions
60MHz oscillation when output loaded
β2
−
30
−
MHz/V
FSEL=H
Duty
45
50
55
%
at 1/2 VDD
Rise-time
tr
−
2.5
−
nsec
Time is from VDD 0.2 to VDD 0.8
Fall-time
tf
−
2.5
−
nsec
Time is from VDD 0.2 to VDD 0.8
Frequency sensitivity 2
Output duty
zApplication example
OUT VDD
1 OUT VDD
FIN-B
14
2 OUT GND
FIN-A
13
3 VCO OUT
VCOE
12
DVDD
11
bypass
capacitor
OUT GND
VCO VDD
AVDD
AGND
VCO GND
4 VCO VDD
bypass
capacitor
5 VCO GND
6 VCO IN
7 FSEL1
BU2370FV
1/N
REF IN
H:VCO out Disable(L Fix)
L:VCO out Enable
DVDD
bypass
capacitor
DGND
10
PD OUT
9
PDE
8
DGND
H:PD Disable(Hi lmp)
L:PD Enable
DGND
DVDD
This line is noise source. But if power line
and GND are divided into two, this line
becoms AVDD,AGND
Please take care this Power line. Because this line is most weak
indigitalnoise. So this line must be separated from digital_VDD,
GND. And place bypass capacitor (0.01µF) for power pin as close
to BU2370FV as possible.
DVDD,DGND
And place bypass capacitor (0.01µF) for power pin as close to
BU2370FV as possible.
OUT DVDD,OUT GND
This line is most noise source. So it should be separated from Analog.
And this line should be connected VDD of external VCC-outdivide.
And place bypass capacitor (0.01µF) for power pin as close to
BU2370FV as possible.
∗Recommend to use capacitor that is better to reduce high frequency noise.
∗Recommend to control (FSEL1, PDE, VCOE) by power line.(DVDD, DGND)
5/5
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any
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The contents described herein are subject to change without notice. The specifications for the
product described in this document are for reference only. Upon actual use, therefore, please request
that specifications to be separately delivered.
Application circuit diagrams and circuit constants contained herein are shown as examples of standard
use and operation. Please pay careful attention to the peripheral conditions when designing circuits
and deciding upon circuit constants in the set.
Any data, including, but not limited to application circuit diagrams information, described herein
are intended only as illustrations of such devices and not as the specifications for such devices. ROHM
CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any
third party's intellectual property rights or other proprietary rights, and further, assumes no liability of
whatsoever nature in the event of any such infringement, or arising from or connected with or related
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otherwise dispose of the same, no express or implied right or license to practice or commercially
exploit any intellectual property rights or other proprietary rights owned or controlled by
ROHM CO., LTD. is granted to any such buyer.
Products listed in this document use silicon as a basic material.
Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices
(such as audio visual equipment, office-automation equipment, communications devices, electrical
appliances and electronic toys).
Should you intend to use these products with equipment or devices which require an extremely high level of
reliability and the malfunction of with would directly endanger human life (such as medical instruments,
transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other
safety devices), please be sure to consult with our sales representative in advance.
About Export Control Order in Japan
Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control
Order in Japan.
In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause)
on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0
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