BU2394KN-E2 Rohm Semiconductor, BU2394KN-E2 Datasheet - Page 2

• Manufacturer Part Number: BU2394KN-E2
• Description: IC, CLOCK GENERATOR, 3CH, VQFN20
• Manufacturer: Rohm Semiconductor

Specifications of BU2394KN-E2

• Clock External Input: Yes
• Supply Voltage Range: 3V To 3.6V
• Digital Ic Case Style: VQFN
• No. Of Pins: 20
• Operating Temperature Range: -5°C To +70°C
• Svhc: No SVHC (18-Jun-2010)
• Base: RoHS Compliant
• Package / Case: VQFN
• Base Number: 2394
• Rohs Compliant: Yes
• Operating Frequency Max: 28.636MHz

●Recommended operating range
● Electrical characteristics
BU2394KN(VDD=3.3V, Ta=25℃, unless otherwise specified.)
XTAL_SEL=H with crystal oscillator at a frequency of 28.636363 MHz, while XTAL_SEL=L at 14.318182 MHz
Note: The output frequency is determined by the arithmetic (frequency division) expression of a frequency input to XTALIN.
【Action circuit current】
【Output H voltage】
CLK1
CLK2
REF_CLK
【Output L voltage】
CLK1
CLK2
REF_CLK
【Pull-Up resistance value】
FS1, FS2, FS3,
CLK2ON, XTAL_SEL
【Output frequency】
CLK1 FS2:H FS3:H
CLK1 FS2:H FS3:L
CLK1 FS2:L FS3:L
CLK1 FS2:L FS3:H
CLK2
REF_CLK FS1:H
REF_CLK FS1:L
【Output waveform】
Duty1
less
Duty2
more
Rise time
Fall time
【Jitter】
Period-Jitter 1σ
Period-Jitter MIN-MAX
【Output Lock-Time】
*1 If the input frequency is set to values shown below, the output frequency will be as listed above.
*
*
Parameter
Supply voltage
Input H voltage
Input L voltage
Operating temperature
Output load
2 When XTAL_SEL is set to H, the input frequency on XTALIN will be 28.636363 MHz.
3 When XTAL_SEL is set to L, the input frequency on XTALIN will be 14.318182 MHz.
Parameter
100MHz or
100MHz or
MIN-MAX
Symbol
Pull-Up
Fclk1-1
Fclk1-2
Fclk1-3
Fclk1-4
Fclk2-2
Fref1-1
Fref1-2
P-J1σ
VOHR
VOH1
VOH2
VOLR
VOL1
VOL2
Duty1
Duty2
Tlock
IDD
P-J
Tr
Tf
R
Symbol
VINH
VINL
VDD
Topr
CL
VDD-0.5
VDD-0.5
VDD-0.5
Min.
125
45
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
0.8VDD～VDD
0.0～0.2VDD
135.000000
108.000000
110.000000
98.181818
48.008022
14.318182
17.734450
VDD-0.2
VDD-0.2
VDD-0.2
15(max.)
3.0～3.6
-5～+70
Limit
Limit
Typ.
250
180
0.2
0.2
0.2
2.5
2.5
45
50
50
30
－
2/16
Max.
375
0.5
0.5
0.5
60
55
－
－
－
－
－
－
－
－
－
－
－
－
－
－
－
1
Unit
pF
Ｖ
Ｖ
Ｖ
℃
msec
MHz
MHz
MHz
MHz
MHz
MHz
MHz
nsec
nsec
psec
psec
Unit
mA
Ω
％
％
V
V
V
V
V
V
At no load
When current load = - 9.0mA
When current load = - 7.0mA
When current load = - 4.5mA
When current load =11mA
When current load =9.0mA
When current load =5.5mA
Specified by a current value
running when a voltage of 0V
is applied to a measuring pin.
(R=VDD／I)
XTAL×(1188/63)/2
XTAL×(1056/70)/2
XTAL×(864/63)/2
XTAL×(968/63)/2
XTAL×(228/17)/4
XTAL Output
XTAL×(706/57)/10
Measured at a voltage of 1/2
of VDD
Measured at a voltage of 1/2
of VDD
Period
required for the output to
reach 80% from 20% of VDD.
Period
required for the output to
reach 20% from 80% of VDD.
*
*
*
1
2
3
of
of
Condition
transition
transition
time
time