BU2394KN_15 Datasheet, PDF (2/25 Pages) Rohm – 3ch Clock Generator for Digital Cameras

BU2394KN
Block Diagram and Pin Configuration
XIN 4
XOUT 5
XTAL
OSC
XTAL_SEL 7
CLK2ON 12
FS1
10
FS2
9
FS3
8
1／2
TOP VIEW
DATA
PLL1
135.000000MHz
108.000000MHz
110.000000MHz
98.181818MHz
11 CLK1
PLL2
48.008022MHz
1／4
16 CLK2
PLL3
1／10 ^17.734450MHz
14.318182MHz
19 ^REF_CLK
Pin Descriptions
Pin No.
Pin Name
Function
1
AVDD
Analog power source
2
AVDD
Analog power source
3
AVSS
Analog GND
4
XIN
Crystal IN
5
XOUT
Crystal OUT
6
TEST1
TEST pin, normally open, equipped with pull-down
7
XTAL_SEL
Crystal oscillator selection, H: 28.636 MHz, L: 14.318 MHz, equipped with pull-up
8
FS3
CLK1,2 output selection, equipped with pull-up
9
FS2
CLK1,2 output selection, equipped with pull-up
10
FS1
REFCLK output selection, equipped with pull-up
11
CLK1OUT
110M/98M/108M/135M output
12
CLK2ON
CLK2 output control, H: Enable, L: Disable, equipped with pull-up
13
VSS1
CLK1/CLK2 & Internal digital GND
14
VDD1
CLK1/2 & Internal digital power supply
15
VDD1
CLK1/2 & Internal digital power supply
16
CLK2OUT
48M output
17
VSS2
REFCLK GND
18
VDD2
REFCLK power supply
19
REF_CLK
14.3M/17.7M output
20
TEST2
TEST pin, normally open, equipped with pull-down
(Note) Basically, mount ICs to the printed circuit board for use.
If the ICs are not mounted to the printed circuit board, the characteristics of ICs may not be fully demonstrated.
Mount 0.1µF capacitors in the vicinity of the IC pins between PIN 1&2 and PIN 3, PIN 13 and PIN 14&15, and PIN 17 and PIN 18, respectively.
As to the jitters, the TYP values vary with the substrate, power supply, output loads, noises, and others. Also, the operating margin should be thoroughly
checked.
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TSZ22111・15・001
2/21
TSZ02201-0E3E0J500700-1-2
04.Nov.2015 Rev.001