CDCE937PWRG4 datasheet, PDF - EEWORLD Datasheet

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CDCE937PWRG4: DescriptionProgrammable 3-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs 20-TSSOP -40 to 85; CategoryThe embedded processor and controller Microcontrollers and processors; File Size1MB，39 Pages; ManufacturerTDK Corporation; Websitehttp://www.tdk.com; Environmental Compliance

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CDCE937PWRG4 Overview

Programmable 3-PLL VCXO Clock Synthesizer with 2.5-V or 3.3-V LVCMOS Outputs 20-TSSOP -40 to 85

CDCE937PWRG4 Parametric

Parameter Name	Attribute value
Brand Name	Texas Instruments
Is it lead-free?	Lead free
Is it Rohs certified?	conform to
Parts packaging code	TSSOP
package instruction	TSSOP, TSSOP20,.25
Contacts	20
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	6 weeks
JESD-30 code	R-PDSO-G20
JESD-609 code	e4
length	6.5 mm
Humidity sensitivity level	1
Number of terminals	20
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output clock frequency	230 MHz
Package body material	PLASTIC/EPOXY
encapsulated code	TSSOP
Encapsulate equivalent code	TSSOP20,.25
Package shape	RECTANGULAR
Package form	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)	260
power supply	1.8 V
Master clock/crystal nominal frequency	32 MHz
Certification status	Not Qualified
Maximum seat height	1.2 mm
Maximum supply voltage	1.9 V
Minimum supply voltage	1.7 V
Nominal supply voltage	1.8 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal form	GULL WING
Terminal pitch	0.65 mm
Terminal location	DUAL
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4.4 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, VIDEO
Base Number Matches	1

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CDCE937, CDCEL937

SLAS564G – AUGUST 2007 – REVISED OCTOBER 2016

CDCEx937 Flexible Low Power LVCMOS Clock Generator

With SSC Support For EMI Reduction

1 Features

2 Applications

D-TVs, STBs, IP-STBs, DVD Players, DVD

Recorders, and Printers

•

Member of Programmable Clock Generator

Family

– CDCEx913: 1-PLL, 3 Outputs

– CDCEx925: 2-PLL, 5 Outputs

–

CDCEx937: 3-PLL, 7 Outputs

– CDCEx949: 4-PLL, 9 Outputs

In-System Programmability and EEPROM

– Serial Programmable Volatile Register

– Nonvolatile EEPROM to Store Customer

Setting

Flexible Input Clocking Concept

– External Crystal: 8 MHz to 32 MHz

– On-Chip VCXO: Pull Range ±150 ppm

– Single-Ended LVCMOS up to 160 MHz

Free Selectable Output Frequency up to 230 MHz

Low-Noise PLL Core

– PLL Loop Filter Components Integrated

– Low Period Jitter (Typical 60 ps)

Separate Output Supply Pins

– CDCE937: 3.3 V and 2.5 V

– CDCEL937: 1.8 V

Flexible Clock Driver

– Three User-Definable Control Inputs

[S0/S1/S2], for Example, SSC Selection,

Frequency Switching, Output Enable or Power

Down

– Generates Highly Accurate Clocks for Video,

Audio, USB, IEEE1394, RFID, Bluetooth™,

WLAN, Ethernet™, and GPS

– Generates Common Clock Frequencies Used

With TI-DaVinci™, OMAP™, DSPs

– Programmable SSC Modulation

– Enables 0-PPM Clock Generation

1.8-V Device Power Supply

Wide Temperature Range –40°C to 85°C

Packaged in TSSOP

Development and Programming Kit for Easy PLL

Design and Programming (TI Pro-Clock™)

3 Description

The CDCE937 and CDCEL937 devices are modular

PLL-based

low

cost,

high-performance,

programmable clock synthesizers, multipliers and

dividers. They generate up to 7 output clocks from a

single input frequency. Each output can be

programmed in-system for any clock frequency up to

230 MHz, using up to three independent configurable

PLLs.

The CDCEx937 has separate output supply pins,

VDDOUT, which is 1.8 V for CDCEL937 and to 2.5 V

to 3.3 V for CDCE937.

The input accepts an external crystal or LVCMOS

clock signal. If an external crystal is used, an on-chip

load capacitor is adequate for most applications. The

value of the load capacitor is programmable from 0 to

20 pF. Additionally, an on-chip VCXO is selectable

which allows synchronization of the output frequency

to an external control signal, that is, PWM signal.

Device Information

(1)

PART NUMBER

CDCE937,

CDCEL937

PACKAGE

TSSOP (20)

BODY SIZE (NOM)

6.50 mm x 4.40 mm

(1) For all available packages, see the orderable addendum at

the end of the datasheet.

Typical Application Schematic

Ethernet PHY

CDCE(L)9xx Clock

WiFi

25 MHz

USB Controller

FPGA

An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,

intellectual property matters and other important disclaimers. PRODUCTION DATA.

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