UC1635L/883B [TI]

PLL FREQUENCY SYNTHESIZER, 10MHz, CQCC20, CERAMIC, LCC-20;


型号：	UC1635L/883B
厂家：	TEXAS INSTRUMENTS
描述：	PLL FREQUENCY SYNTHESIZER, 10MHz, CQCC20, CERAMIC, LCC-20
文件：	总6页 (文件大小：362K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

UC1635

UC2635

UC3635

Phase Locked Frequency Controller

FEATURES

DESCRIPTION

•

Precision Phase Locked Frequency

The UC1635 family of integrated circuits was designed for use in preci-

sion speed control of DC motors. An extension to the UC1633 line of

phase locked controllers, these devices provide access to both of the

digital phase detector’s inputs, and include a reference frequency di-

vider output pin. With this added flexibility, this family of controllers can

be used to obtain phase synchronization of multiple motors.

Control System

•

Crystal Oscillator

Programmable Reference Frequency

Dividers

•

Phase Detector with Absolute Frequency

Steering

A reference frequency can be generated using the device’s crystal oscil-

lator and programmable dividers. The oscillator operates using a broad

range of crystals, or, can function as a buffer stage to an external fre-

quency source.

Separate Divider Outputs and Phase

Detector Input Pins

Double Edge Option on the Frequency

Feedback Sensing Amplifier

The phase detector responds proportionally to the phase error between

the detector’s minus input pin and the sense amplifier output. This

phase detector includes absolute frequency steering to provide maxi-

mum drive signals when any frequency error exists. This feature allows

optimum start-up and lock times to be realized.

•

Two High Current Op Amps

5V Reference Output

Two op-amps are included that can be configured to provide necessary

loop filtering. The outputs of these op-amps will source or sink in excess

of 16mA, so they can provide a low impedance control signal to driving

circuits.

Additional features include a double edge option on the sense amplifier

that can be used to double the loop reference frequency for increased

loop bandwidths. A 5V reference output can be used to accurately set

DC operating levels.

BLOCK DIAGRAM

UDG-92019

7/97

UC1635

UC2635

UC3635

ABSOLUTE MAXIMUM RATINGS

CONNECTION DIAGRAMS

Input Supply Voltage (+VIN) . . . . . . . . . . . . . . . . . . . . +20V

Reference Output Current . . . . . . . . . . . . . . . . . . . . . -30mA

Op-Amp Output Currents . . . . . . . . . . . . . . . . . . . . ±30mA

Op-Amp Input Voltages . . . . . . . . . . . . . . . . . . -0.3 to +20V

Phase Detector Input Voltage . . . . . . . . . . . . . -0.3V to +5V

Phase Detector Output Current . . . . . . . . . . . . . . . . ±10mA

Lock Indicator Output Current . . . . . . . . . . . . . . . . . +15mA

Lock Indicator Output Voltage . . . . . . . . . . . . . . . . . . . +20V

Divide Select Input Voltages . . . . . . . . . . . . -0.3V to +10V

Double Edge Disable Input Voltage . . . . . . . -0.3V to +10V

Oscillator Input Voltage . . . . . . . . . . . . . . . . . . -0.3V to +5V

Sense Amplifier Input Voltage . . . . . . . . . . . . -0.3V to +20V

Power Dissipation at TA = 25°C, (Note 2) . . . . . . . 1000mW

Power Dissipation at TC = 25°C, (Note 2) . . . . . . . 2000mW

Operating Junction Temperature . . . . . . . . . -55° to 150°C

Storage Temperature . . . . . . . . . . . . . . . . . -65° to +150°C

Lead Temperature (Soldering, 10 Seconds) . . . . . . . 300°C

SOIC–16 (Top View)

DW Package

Note 1: Voltages are referenced to ground, (Pin 16). Currents

are positive into, negative out of, the specified terminals.

Note 2: Consult Unitrode Integrated Circuits databook for in-

formation regarding thermal specifications and limitations of

packages.

DIL–16 (Top View)

J & N Packages

PLCC-20 & LCC-20

(Top View)

Q & L Packages

PACKAGE PIN FUNCTION

FUNCTION

N/C

Div 2/4

Phase Detector Input

Divider Output

Phase Detector Output

N/C

Dbl Edge Disable Input

Sense Amp Input

5V Ref Output

Loop Amp Inv Input

N/C

Loop Amp Output

Aux Amp Non-Inv Input

Aux Amp Inv Input

Aux Amp Output

N/C

+VIN

OSC Output

OSC Input

Ground

Unless otherwise stated, specifications hold for TA = 0°C to +70°C for the UC3635, -25°C to +85°C for

the UC2635 and -55°C to +125°C for the UC1635, +VIN = 12V. TA = TJ.

ELECTRICAL

CHARACTERISTICS:

PARAMETER

TEST CONDITIONS

MIN

4.75

TYP

MAX UNITS

Supply Current

+VIN = 15V

Reference

Output Voltage (VREF)

Load Regulation

5.0

2.0

5.25

IOUT = 0 to 7mA

+VIN = 8 to 15V

VOUT = 0V

Line Regulation

Short Circuit Current

UC1635

UC2635

UC3635

ELECTRICAL CHARACTERISTICS: Unless otherwise stated, specifications hold for TA = 0°C to +70°C for the UC3635,

-25°C to +85°C for the UC2635 and -55°C to +125°C for the UC1635, +Vin = 12V. TA = TJ.

PARAMETER

TEST CONDITIONS

MIN

TYP

MAX UNITS

Oscillator

DC Voltage Gain

Oscillator Input to Oscillator Output

1.15

1.3

1.2

1.3

1.6

1.4

1.45

1.9

Input DC Level (VIB)

Oscillator Input Pin Open, TJ = 25°C

Input Impedance (Note 2)

Output DC Level

VIN = VIB 0.5V, TJ = 25°C

kΩ

Oscillator Input Pin Open, TJ = 25°C

1.6

Maximum Operating Frequency

MHz

Dividers

Maximum Input Frequency

Div 2/4 Input Current

Input = 1Vpp at Oscillator Input

Input = 5V (Div. by 2)

MHz

µA

150

0.0

1.6

4.5

500

5.0

2.2

Input = 0V (Div. by 4)

-5.0

0.5

4.0

Div 2/4 Threshold

Divider Output

High Level (w/6.8k Load to GND)

Low Level (Open Collector Leakage)

µA

Sense Amplifier

Threshold Voltage

Threshold Hysteresis

Input Bias Current

Double Edge Disable Input

Input Current

Percent of VREF

Input = 1.5V

µA

-1.0

-0.2

Input = 5V (Disabled)

Input = 0V (Enabled)

150

0.0

1.6

500

5.0

2.2

µA

-5.0

0.5

Threshold Voltage

Phase Detector

-Input Threshold

-Input Current

Detector Responds to Falling Edge

Input = 2.2V

0.5

1.6

100

0.2

2.2

250

0.5

µA

High Output Level

Low Output Level

Mid Output Level

Positive Phase/Freq. Error, Volts Below VREF

Negative Phase/Freq. Error

Zero Phase/Freq. Error, Percent of VREF

VOUT = 4.3V

High Level Maximum Source

Current

2.0

8.0

Low Level Maximum Sink Current VOUT 0.7V

2.0

4.5

5.0

6.0

Mid Level Output Impedance

(Note 3)

IOUT = -200 to +200µA, TJ = 25°C

7.5

kΩ

Loop Amplifier

Non-Inv Reference Voltage

Input Bias Current

AVOL

Percent of VREF

Input = 2.5V

-0.8

-0.2

µA

PSRR

+VIN = 8 to 15V

Source, VOUT = 0V

Sink, VOUT = 5V

100

Short Circuit Current

Note 3: These impedance levels will vary with TJ at about 1700ppm/ °C.

UC1635

UC2635

UC3635

ELECTRICAL CHARACTERISTICS (cont.): Unless otherwise stated, specifications hold for TA = 0°C to +70°C for the

UC3635, -25°C to +85°C for the UC2635 and -55°C to +125°C for the UC1635, +Vin = 12V. TA = TJ.

PARAMETER TEST CONDITIONS

Auxiliary Op-Amp

MIN

TYP

MAX UNITS

Input Offset Voltage

Input Bias Current

Input Offset Current

AVOL

VCM = 2.5V

µA

-0.8

-0.2

.01

120

100

0.1

PSRR

+VIN = 8 to 15V

VCM = 0 to 10V

Source, VOUT = 0V

Sink, VOUT = 5V

CMRR

Short Circuit Current

Application and Operation Information

(For Additional Application Information see the UC1633 Data Sheet)

(Pin numbers refer to DIL and SOIC packages)

Phase Detector Input Detail

UDG-92012

Reference Divider Output Detail

UDG-92011-1

UNITRODE CORPORATION

7 CONTINENTAL BLVD. • MERRIMACK, NH 03054

TEL. (603) 424-2410 • FAX (603) 424-3460

PACKAGE OPTION ADDENDUM

www.ti.com

18-Sep-2008

PACKAGING INFORMATION

Orderable Device

Status ⁽¹⁾

Package Package

Pins Package Eco Plan ⁽²⁾Lead/Ball Finish MSL Peak Temp ⁽³⁾

Qty

Type

CDIP

PDIP

SOIC

PDIP

PLCC

Drawing

UC1635J

UC1635J883B

UC2635N

OBSOLETE

TBD

Call TI

UC3635DW

UC3635DWTR

UC3635N

UC3635Q

UC3635QTR

⁽¹⁾The marketing status values are defined as follows:

ACTIVE: Product device recommended for new designs.

LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.

NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in

a new design.

PREVIEW: Device has been announced but is not in production. Samples may or may not be available.

OBSOLETE: TI has discontinued the production of the device.

(2)

Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check

http://www.ti.com/productcontent for the latest availability information and additional product content details.

TBD: The Pb-Free/Green conversion plan has not been defined.

Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements

for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered

at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.

Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and

package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS

compatible) as defined above.

Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame

retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)

(3)

MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder

temperature.

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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI

to Customer on an annual basis.

Addendum-Page 1

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UC1635L/883B [TI]

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