MK1714-01RLFTR 查看數據表（PDF） - Integrated Device Technology
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MK1714-01RLFTR Datasheet PDF : 8 Pages
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MK1714-02
SPREAD SPECTRUM MULTIPLIER CLOCK
SSCG
Pin Assignment
X2
1
X1/ICLK
2
VDD
3
VDD
4
S4
5
S3
6
GND
7
GND
8
S2
9
CLK
10
20
REF
19
OE
18
PD
17
GND
16
S0
15
NC
14
S1
13
GND
12
LEE
11
XSEL
20 pin (150 mil) SSOP (QSOP)
Pin Descriptions
Pin
Pin Pin
Number Name Type
Pin Description
1
X2
XO Crystal connection. Connect to parallel mode crystal. Leave open for clock.
2
X1
XI Crystal connection. Connect to parallel mode crystal or clock.
3
VDD Power Connect to VDD. Must be same value as other VDD.
4
VDD Power Connect to VDD. Must be same value as other VDD.
5
S4 Input Select pin 4. Determines multiplier and spread amount per table on following page. Internal
pull-down.
6
S3 Input Select pin 3. Determines multiplier and spread amount per table on following page. Internal
pull-up.
7
GND Power Connect to ground.
8
GND Power Connect to ground.
9
S2 Input Select pin 2. Determines multiplier and spread amount per table on following page. Internal
pull-up.
10
CLK Output Clock output dependent on input, multiplier, and spread amount per table on following page.
11
XSEL Input Connect to VDD for crystal input, or GND for CLK input. Internal pull-down.
12
LEE Input Low EMI Enable. Turns on spread spectrum on CLK when high. Internal pull-up.
13
GND Power Connect to ground.
14
S1 Input Select pin 1. Determines multiplier and spread amount per table on following page. Internal
pull-up.
17
GND Power Connect to ground.
18
PD Input Power down. Turns off chip when low. Outputs stop low. Leave open or connected to VDD if
power down is not required.
19
OE Input Output enable. Tri-states all outputs when low. Internal pull-up.
20
REF Output Reference clock output from crystal oscillator. This clock is not spread.
Note: When changing the input frequency, the LEE pin must be set low for minimum of 10µs to allow the PLL to lock to the
new frequency. Alternatively, the PD pin may be set low while changing frequencies.
IDT™ SPREAD SPECTRUM MULTIPLIER CLOCK
2
MK1714-02 REV J 121809
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