2206CP Datasheet PDF - Exar Corporation
| Part Number | 2206CP | |
| Description | XR-2206 | |
| Manufacturers | Exar Corporation | |
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...the analog plus companyTM
XR-2206
Monolithic
Function Generator
FEATURES
D Low-Sine Wave Distortion, 0.5%, Typical
D Excellent Temperature Stability, 20ppm/°C, Typ.
D Wide Sweep Range, 2000:1, Typical
D Low-Supply Sensitivity, 0.01%V, Typ.
D Linear Amplitude Modulation
D TTL Compatible FSK Controls
D Wide Supply Range, 10V to 26V
D Adjustable Duty Cycle, 1% TO 99%
APPLICATIONS
D Waveform Generation
D Sweep Generation
D AM/FM Generation
D V/F Conversion
D FSK Generation
D Phase-Locked Loops (VCO)
June 1997-3
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 waveforms can 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 oscillator
frequency can be linearly swept over a 2000:1 frequency
range with an external control voltage, while maintaining
low distortion.
ORDERING INFORMATION
Part No.
XR-2206M
XR-2206P
XR-2206CP
XR-2206D
Package
16 Lead 300 Mil CDIP
16 Lead 300 Mil PDIP
16 Lead 300 Mil PDIP
16 Lead 300 Mil JEDEC SOIC
Operating
Temperature Range
-55°C to +125°C
–40°C to +85°C
0°C to +70°C
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
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XR-2206
DC ELECTRICAL CHARACTERISTICS (CONT’D)
Parameters
Amplitude Modulation
Input Impedance
Modulation Range
Carrier Suppression
Linearity
Square-Wave Output
Amplitude
Rise Time
Fall Time
Saturation Voltage
Leakage Current
FSK Keying Level (Pin 9)
Reference Bypass Voltage
XR-2206M/P
XR-2206CP/D
Min. Typ. Max. Min. Typ. Max. Units Conditions
50 100
100
55
2
50 100
100
55
2
kW
%
dB
% For 95% modulation
12 12 Vp-p Measured at Pin 11.
250 250 ns CL = 10pF
50 50 ns CL = 10pF
0.2 0.4
0.2 0.6
V IL = 2mA
0.1 20
0.1 100
mA VCC = 26V
0.8 1.4 2.4 0.8 1.4 2.4
V See section on circuit controls
2.9 3.1 3.3 2.5 3 3.5 V Measured at Pin 10.
Notes
1 Output amplitude is directly proportional to the resistance, R3, on Pin 3. See Figure 3.
2 For maximum amplitude stability, R3 should be a positive temperature coefficient resistor.
Bold face parameters are covered by production test and guaranteed over operating temperature range.
Specifications are subject to change without notice
ABSOLUTE MAXIMUM RATINGS
Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26V
Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . 750mW
Derate Above 25°C . . . . . . . . . . . . . . . . . . . . . . 5mW/°C
Total Timing Current . . . . . . . . . . . . . . . . . . . . . . . . 6mA
Storage Temperature . . . . . . . . . . . . -65°C to +150°C
SYSTEM DESCRIPTION
The XR-2206 is comprised of four functional blocks; a
voltage-controlled oscillator (VCO), an analog multiplier
and sine-shaper; a unity gain buffer amplifier; and a set of
current switches.
The VCO produces an output frequency proportional to
an input current, which is set by a resistor from the timing
terminals to ground. With two timing pins, two discrete
output frequencies can be independently produced for
FSK generation applications by using the FSK input
control pin. This input controls the current switches which
select one of the timing resistor currents, and routes it to
the VCO.
Rev. 1.03
5
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