5P49V5943_17 Datasheet, PDF (3/33 Pages) Integrated Device Technology – Programmable Clock Generator

5P49V5943 DATASHEET
Table 1: Pin Descriptions
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
ePAD
Name
CLKIN
CLKINB
VDDA
VDD
Type
Input
Pull-down
Input
Pull-down
Power
Power
SD/OE
Input
Pull-down
SEL1/SDA
SEL0/SCL
VDDO2
OUT2
OUT2B
GND
GND
OUT1B
OUT1
VDDO1
GND
VDDD
GND
VDDO0
Input
Input
Power
Output
Output
Power
Power
Output
Output
Power
Power
Power
Power
Power
Pull-down
Pull-down
OUT0_SELB_I2C Input/Output Pull-down
Power
Description
Differential clock input. Weak 100kohms internal pull-down.
Complementary differential clock input. Weak 100kohms internal pull-down.
Analog functions power supply pin. Connect to 1.8V to 3.3V. VDDA and VDDD
should have the same voltage applied.
Power supply pin. Connect to 1.8 to 3.3V.
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.
Configuration select pin, or I2C SDA input as selected by OUT0_SEL_I2CB.
Weak internal pull down resistor.
Configuration select pin, or I2C SCL input as selected by OUT0_SEL_I2CB.
Weak internal pull down resistor.
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT2/OUT2B.
Output Clock 2. Please refer to the Output Drivers section for more details.
Complementary Output Clock 2. Please refer to the Output Drivers section for
more details.
Connect to ground.
Connect to ground.
Complementary Output Clock 1. Please refer to the Output Drivers section for
more details.
Output Clock 1. Please refer to the Output Drivers section for more details.
Output power supply. Connect to 1.8 to 3.3V. Sets output voltage levels for
OUT1/OUT1B.
Connect to ground.
Digital functions power supply pin. Connect to 1.8 to 3.3V. VDDA and VDDB
should have the same voltage applied.
Connect to ground.
Power supply pin for OUT0_SEL_I2CB. Connect to 1.8 to 3.3V. Sets output
voltage levels for OUT0.
Latched input/LVCMOS Output. At power up, the voltage at the pin
OUT0_SEL_I2CB is latched by the part and used to select the state of pins 8
and 9. If a weak pull up (10Kohms) is placed on OUT0_SEL_I2CB, pins 8 and 9
will be configured as hardware select pins, SEL1 and SEL0. If a weak pull down
(10Kohms) is placed on OUT0_SEL_I2CB or it is left floating, pins 8 and 9 will
act as the SDA and SCL pins of an I2C interface. After power up, the pin acts as
a LVCMOS reference output.
Connect to ground pad.
MARCH 3, 2017
3
PROGRAMMABLE CLOCK GENERATOR