Estudiante Secundario

XR-2206
...the analog plus

Monolithic
Function Generator

company TM

June 1997-3

FEATURES

APPLICATIONS
D Waveform Generation

D Low-Sine Wave Distortion, 0.5%, Typical
D Excellent Temperature Stability, 20ppm/°C, Typ.

D Sweep Generation

D Wide Sweep Range, 2000:1, Typical

D AM/FM Generation

D Low-Supply Sensitivity, 0.01%V, Typ.

D V/F Conversion

D LinearAmplitude Modulation

D FSK Generation

D TTL Compatible FSK Controls

D Phase-Locked Loops (VCO)

D Wide Supply Range, 10V to 26V
D Adjustable Duty Cycle, 1% TO 99%

GENERAL DESCRIPTION
The XR-2206 is a monolithic function generator
integrated circuit capable of producing high quality sine,
square, triangle, ramp, and pulse waveforms of
high-stability and accuracy. The output waveformscan be
both amplitude and frequency modulated by an external
voltage. Frequency of operation can be selected
externally over a range of 0.01Hz to more than 1MHz.

The circuit is ideally suited for communications,
instrumentation, and function generator applications
requiring sinusoidal tone, AM, FM, or FSK generation. It
has a typical drift specification of 20ppm/°C. The oscillatorfrequency can be linearly swept over a 2000:1 frequency
range with an external control voltage, while maintaining
low distortion.

ORDERING INFORMATION

Part No.

Package

Operating
Temperature Range

XR-2206M

16 Lead 300 Mil CDIP

-55°C to +125°C

XR-2206P

16 Lead 300 Mil PDIP

–40°C to +85°C

XR-2206CP

16 Lead 300 Mil PDIP

0°C to +70°C

XR-2206D

16 Lead 300 MilJEDEC SOIC

0°C to +70°C

Rev. 1.03
E1972

EXAR Corporation, 48720 Kato Road, Fremont, CA 94538 z (510) 668-7000 z (510) 668-7017
1

XR-2206

VCC
TC1

TR1

8

FSKI

9

AMSI

11 SYNCO

7

TR2

10

6

1

Timing
Capacitor

Timing
Resistors

BIAS

12

5

TC2

GND

4

VCO

Current
Switches

Multiplier
And Sine
Shaper

+1

WAVEA2 14SYMA1 15
SYMA2 16

Figure 1. XR-2206 Block Diagram

Rev. 1.03
2

STO

3

WAVEA1 13

2

MO

XR-2206

AMSI
STO
MO
VCC
TC1
TC2
TR1
TR2

1

16

2

15

3

14

4

13

5

12

6

11

7

10

8

9

SYMA2
SYMA1
WAVEA2
WAVEA1
GND
SYNCO
BIAS
FSKI

AMSI
STO
MO
VCC
TC1
TC2
TR1
TR2

16 Lead PDIP, CDIP (0.300”)

1

16

2

15

314

4

13

5

12

6

11

7

10

8

9

SYMA2
SYMA1
WAVEA2
WAVEA1
GND
SYNCO
BIAS
FSKI

16 Lead SOIC (Jedec, 0.300”)

PIN DESCRIPTION
Pin #

Symbol

Type

Description

1

AMSI

I

Amplitude Modulating Signal Input.

2

STO

O

Sine or Triangle Wave Output.

3

MO

O

Multiplier Output.

4

VCC

5

TC1

I

Timing CapacitorInput.

6

TC2

I

Timing Capacitor Input.

7

TR1

O

Timing Resistor 1 Output.

8

TR2

O

Timing Resistor 2 Output.

9

FSKI

I

Frequency Shift Keying Input.

10

BIAS

O

Internal Voltage Reference.

O

Sync Output. This output is a open collector and needs a pull up resistor to VCC.

Positive Power Supply.

11

SYNCO

12

GND

13WAVEA1

I

Wave Form Adjust Input 1.

14

WAVEA2

I

Wave Form Adjust Input 2.

15

SYMA1

I

Wave Symetry Adjust 1.

16

SYMA2

I

Wave Symetry Adjust 2.

Ground pin.

Rev. 1.03
3

XR-2206
DC ELECTRICAL CHARACTERISTICS

Test Conditions: Test Circuit of Figure 2 Vcc = 12V, TA = 25°C, C = 0.01mF, R1 = 100kW, R2 = 10kW, R3 = 25kW
Unless Otherwise Specified. S1open for triangle, closed for sine wave.
XR-2206M/P
Parameters

Min.

Typ.

XR-2206CP/D
Max.

Min.

Typ.

Max.

Units

Conditions

General Characteristics
Single Supply Voltage

10

26

10

26

V

Split-Supply Voltage

+5

+13

+5

+13

V

20

mA

Supply Current

12

17

14

R1  10kW

Oscillator Section
Max. Operating Frequency

0.5...