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CDCE937 Datasheet(PDF) 4 Page - Texas Instruments

Part # CDCE937
Description  CDCEx937-Q1 Programmable 3-PLL VCXO Clock Synthesizer With 1.8-V, 2.5-V, and 3.3-V LVCMOS Outputs
PDF  39 Pages
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Manufacturer  TI2 [Texas Instruments]
Direct Link  https://www.ti.com
Logo TI2 - Texas Instruments

CDCE937 Datasheet(HTML) 4 Page - Texas Instruments

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Xin/Clk 1
20 Xout
S0
2
19 S1/SDA
Vdd 3
18 S2/SCL
Vctr 4
17 Y1
GND
5
16 GND
Vddout 6
15 Y2
Y4
7
14 Y3
Y5
8
13 Vddout
GND
9
12 Y6
Vddout 10
11 Y7
4
CDCE937-Q1, CDCEL937-Q1
SCAS892C – FEBRUARY 2010 – REVISED DECEMBER 2016
www.ti.com
Product Folder Links: CDCE937-Q1 CDCEL937-Q1
Submit Documentation Feedback
Copyright © 2010–2016, Texas Instruments Incorporated
(1)
G = Ground, I = Input, O = Output, P = Power
7 Pin Configuration and Functions
PW Package
20-Pin TSSOP
Top View
Pin Functions
PIN
TYPE(1)
DESCRIPTION
NO.
NAME
1
Xin/CLK
I
Crystal oscillator input or LVCMOS clock input (selectable through SDA and SCL bus)
2
S0
I
User-programmable control input S0; LVCMOS inputs; Internal pullup 500 k
3
VDD
P
1.8-V power supply for the device
4
VCtrl
I
VCXO control voltage (leave open or pull up to approximately 500 k when not used)
5
GND
G
Ground
6
Vddout
P
CDCE937-Q1: 3.3-V or 2.5-V supply for all outputs
CDCEL937-Q1: 1.8-V supply for all outputs
7
Y4
O
LVCMOS outputs
8
Y5
O
LVCMOS outputs
9
GND
G
Ground
10
Vddout
P
CDCE937-Q1: 3.3-V or 2.5-V supply for all outputs
CDCEL937-Q1: 1.8-V supply for all outputs
11
Y7
O
LVCMOS outputs
12
Y6
O
LVCMOS outputs
13
Vddout
P
CDCE937-Q1: 3.3-V or 2.5-V supply for all outputs
CDCEL937-Q1: 1.8-V supply for all outputs
14
Y3
O
LVCMOS outputs
15
Y2
O
LVCMOS outputs
16
GND
G
Ground
17
Y1
O
LVCMOS outputs
18
SCL/S2
I
SCL: serial clock input(default configuration), LVCMOS internal pullup 500 k; or
S2: user-programmable control input, LVCMOS inputs, and internal pullup 500 k
19
SDA/S1
I/O or I
SDA: bidirectional serial data input/output (default configuration). LVCMOS internal pullup 500 k; or
S1: user-programmable control input, LVCMOS inputs, and internal pullup 500 k
20
Xout
O
Crystal oscillator output (leave open or pull up to approximately 500 k when not used)



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