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5P49V5914 Datasheet(PDF) 3 Page - Integrated Device Technology

Part No. 5P49V5914
Description  Generates up to three independent output frequencies
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Maker  IDT [Integrated Device Technology]
Homepage  http://www.idt.com
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5P49V5914 Datasheet(HTML) 3 Page - Integrated Device Technology

 
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REVISION B 07/13/15
3
PROGRAMMABLE CLOCK GENERATOR
5P49V5914 DATASHEET
Table 1: Pin Descriptions
Number
Name
Type
Description
1
CLKIN
Input
Internal
Pull-down
Differential clock input. Weak 100kohms internal pull-down.
2
CLKINB
Input
Internal
Pull-down
Complementary differential clock input. Weak 100kohms internal pull-down.
3
XOUT
Input
Crystal Oscillator interface output.
4
XIN/REF
Input
Crystal Oscillator interface input, or single-ended LVCMOS clock input. Ensure that
the input voltage is 1.2V max.Refer to the section “Overdriving the XIN/REF
Interface”.
5VDDA
Power
Analog functions power supply pin.Connect to 1.8V to 3.3V. VDDA and VDDD should
have the same voltage applied.
6
CLKSEL
Input
Internal
Pull-down
Input clock select. Selects the active input reference source in manual switchover
mode.
0 = XIN/REF, XOUT (default)
1 = CLKIN, CLKINB
CLKSEL Polarity can be changed by I2C programming as shown in Table 4.
7
SD/OE
Input
Internal
Pull-down
Enables/disables the outputs (OE) or powers down the chip (SD). The SH bit
controls the configuration of the SD/OE pin. The SH bit needs to be high for SD/OE
pin to be configured as SD. The SP bit (0x02) controls the polarity of the signal to be
either active HIGH or LOW only when pin is configured as OE (Default is active
LOW.) Weak internal pull down resistor. When configured as SD, device is shut
down, differential outputs are driven high/low, and the single-ended LVCMOS
outputs are driven low. When configured as OE, and outputs are disabled, the
outputs can be selected to be tri-stated or driven high/low, depending on the
programming bits as shown in the SD/OE Pin Function Truth table.
8
SEL1/SDA
Input
Internal
Pull-down
Configuration select pin, or I2C SDA input as selected by OUT0_SEL_I2CB. Weak
internal pull down resistor.
9
SEL0/SCL
Input
Internal
Pull-down
Configuration select pin, or I2C SCL input as selected by OUT0_SEL_I2CB. Weak
internal pull down resistor.
10
VDDA
Power
Analog functions power supply pin.Connect to 1.8V to 3.3V. VDDA and VDDD should
have the same voltage applied.
11
NC
No connect.
12
NC
No connect.
13
OUT3B
Output
Complementary Output Clock 3. Please refer to the Output Drivers section for more
details.
14
OUT3
Output
Output Clock 3. Please refer to the Output Drivers section for more details.
15
VDDO3Power
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT3/OUT3B.
16
OUT2B
Output
Complementary Output Clock 2. Please refer to the Output Drivers section for more
details.
17
OUT2
Output
Output Clock 2. Please refer to the Output Drivers section for more details.
18
VDDO2Power
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT2/OUT2B.
19
OUT1B
Output
Complementary Output Clock 1. Please refer to the Output Drivers section for more
details.
20
OUT1
Output
Output Clock 1. Please refer to the Output Drivers section for more details.
21
VDDO1Power
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT1/OUT1B.
22
VDDD
Power
Digital functions power supply pin. Connect to 1.8 to 3.3V. VDDA and VDDD should
have the same voltage applied.


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