Analog/DSP > SPPOSC

SPPOSC Series

2" x 2"
(Low Distortion)
1 Hz to 102.4 kHz
8 or 9-Bit Frequency Selectable
Dual Channel & Quadrature
Oscillators

Specifications

Pin-out and package data

Ordering Information


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SPPOSC Series
Oscillators: Dual Channel & Quadrature
 

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Description

The SPPOSC Series is a compact, dual channel, phase continuous, DSP based, programmable sine wave generator with analog outputs and 8 or 9 bits of frequency selection. All SPPOSC-01 platforms are small, low profile, easy to use signal generators, which require no external components and can cover the audio/ultrasonic bandwidth from 1 Hz to 102.4 kHz in several standard and custom frequency ranges.

SPPOSC’s use a TMS320VC5402 fixed point DSP with 32-bit math, 24-bits of resolution and dual channel DACs. Noise floor and distortion are typically -100dB to 20 kHz and < -80 dB to 100 kHz.

Features/Benefits:

  • Available in a single, dual or quadrature (0.1° phase stability) form factor, SPPOSC osscillators with up to 512 tuning steps insure design flexibility in a compact 2" x 2" footprint while minimizing board space requirements.
  • This plug-in, turnkey signal source, with a standard or custom algorithm, allows product designers to incorporate various precision on-board programmable signal generators in a standard pin-out and form factor thereby reducing design time while maximizing design flexibility.
  • When used in conjunction with the SPPDB-01 development board, SPPOSC signal generators require minimal set-up time to provide low noise and distortion signals for laboratory evaluation or precision field installation.
 

Applications

  • Low distortion signal source for ATE systems
  • Sound and vibration testing
  • Waveform generation: sine / cosine, quadrature or custom.
  • Tone generation in speech and hearing analysis, research, pathology

 

 

Example Quadrature Oscillator

 

OSCILLATOR SOFTWARE SELECTION GUIDE

SPPOSC-01

  Low Frequency Ranges

 

SPPOSC-02

  High Frequency Ranges

SWDO-01 Dual Chl. Prog. Osc. - 1 Hz to 256 Hz in 1 Hz Steps   SWDO-03 Dual Chl. Prog. Osc. - 100 Hz to 25.6 kHz in 100 Hz Steps
SWDO-02 Dual Chl. Prog. Osc. - 10 Hz to 2.56 kHz in 10 Hz Steps   SWDO-04 Dual Chl. Prog. Osc. - 200 Hz to 51.2 kHz in 200 Hz Steps
SWQO-01 Quadrature Prog. Osc. - 1 Hz to 512 Hz in 1 Hz Steps   SWDO-05 Dual Chl. Prog. Osc. - 400 Hz to 102.4 kHz in 400 Hz Steps
SWQO-02 Quadrature Prog. Osc. - 10 Hz to 5.12 kHz in 10 Hz Steps   SWQO-03 Quadrature Prog. Osc. - 100 Hz to 51.2 kHz in 100 Hz Steps
SWSO-01 Same Prog. Dual Chl. Osc. - 1 Hz to 512 Hz in 1 Hz Steps   SWQO-04 Quadrature Prog. Osc. - 200 Hz to 102.4 kHz in 200 Hz Steps
SWSO-02 Same Prog. Dual Chl. Osc. - 10 Hz to 5.12 kHz in 10 Hz Steps   SWSO-03 Same Prog. Dual Chl. Osc. - 100 Hz to 51.2 kHz in 100 Hz Steps
      SWSO-04
Same Prog. Dual Chl. Osc. - 200 Hz to 102.4 kHz in 200 Hz Steps

CUSTOM SW

   Custom Frequency Ranges

     
SWDO-CXX Custom Dual Chl. Prog. Oscillator      
SWQO-CXX Custom Quadrature Prog. Oscillator      
SWSO-CXX Custom Same Prog. Dual Chl. Oscillator      



(Low Distortion) 1 Hz to 102.4 kHz
8 or 9-Bit Frequency Selectable

 

SPPOSC Series
2" X 2"
Oscillators: Dual Channel
& Quadrature


Frequency Selection Data Port

Data Format

Logic "0"
0VDC Min - 2VDC Max
Logic "1"
3.5VDC Min - 5Vdc Max

Bit Weighting (Binary Coded)
  D0   LSB
  D7 or D8 (for 9-bits)   MSB

Frequency: 256:1 (8-Bit Dual),
or 512:1 (9-Bit Single)


1. The frequency selection data word bus consists of D0 to D7 for 8-bit programming and D0 to D8 for 9-bit programming.

2. For dual Channel 8-Bit programming D8 is Channel Select and requires a minimum of 21 µsecs set-up time at a logic "1", 5volts for channel 2 or logic "0", 0 volts for Channel 1.

3. For an 8-bit dual channel unit, the Program enable or "Latch pin" is D9. To enable a program change, this pin must be pulled to a logic high "1" or 5 volts. If the pin is low, a frequency change will not be read and the channels will continue to run the previous values.

4. The D0 - D9 bus data are checked simultaneously. New frequency selection data must be present or updated at the time Channel select occurs to be valid. The Program enable or "Latch" pin must be high. While the latch pin is high, the Frequency data must remain on the bus until the user applies the next frequency change. The pins do not float during programming! The frequency ports are polled by the system every 21 µseconds. Within 21 µsecs of programming, if the latch goes low, the programmed values are retained and the pins may float.

 
9-Bit Programming Table
MSB
---
---
---
---
---
---
---
LSB
Bit
Weight
28
D
8
27
D
7
26
D
6
25
D
5
24
D
4
23
D
3
22
D
2
21
D
1
20
D
0
fc
Corner
Frequency
0
0
0
0
0
0
0
0
0
fmax/512
0
0
0
0
0
0
0
0
1
fmax/256
0
0
0
0
0
0
0
1
1
fmax/128
0
0
0
0
0
0
1
1
1
fmax/64
0
0
0
0
0
1
1
1
1
fmax/32
0
0
0
0
1
1
1
1
1
fmax/16
0
0
0
1
1
1
1
1
1
fmax/8
0
0
1
1
1
1
1
1
1
fmax/4
0
1
1
1
1
1
1
1
1
fmax/2
1
1
1
1
1
1
1
1
1
fmax

8-Bit Programming Table
MSB
---
---
---
---
---
---
LSB
Bit
Weight
27
D
7
26
D
6
25
D
5
24
D
4
23
D
3
22
D
2
21
D
1
20
D
0
fc
Corner
Frequency
0
0
0
0
0
0
0
0
fmax/256
0
0
0
0
0
0
0
1
fmax/128
0
0
0
0
0
0
1
1
fmax/64
0
0
0
0
0
1
1
1
fmax/32
0
0
0
0
1
1
1
1
fmax/16
0
0
0
1
1
1
1
1
fmax/8
0
0
1
1
1
1
1
1
fmax/4
0
1
1
1
1
1
1
1
fmax/2
1
1
1
1
1
1
1
1
fmax

     



(Low Distortion) 1 Hz to 102.4 kHz
8 or 9-Bit Frequency Selectable

 

SPPOSC Series
2" X 2"
Oscillators: Dual Channel
& Quadrature


SPPOSC-01 & 02
Performance Specifications

Available Tuning Range 1.00 Hz to 102.4 kHz
Frequency Accuracy < ± 0.05 %
Amplitude Accuracy < ± 0.1 dB
Total Broad Band Noise
(Ref to 3.53 VRMS)
<-100dB Max., -105dB Typ.
Total Harm. Dist.(THD)
(10V peak to peak)
<-100 dB Typ. to 20 kHz
<- 80 dB Typ. to 102.4 kHz
Channel to Channel
phase tracking
< ± 0.10°
(SWDO-01 to 05)
Cross talk dual channel
version with different
frequencies on each channel.
1 Hz -10K <- 100 dB Typ.
10kH - 100K <-90 dB Typ.

There are three software configurations available for these SPPOSC-01 / -02 oscillators.

Software Options:

  1. SWDO-01 to -05: Dual channel with independently selectable frequencies.
  2. SWSO-01 to -04: Dual Channel, same output and same frequency selection.
  3. SWQO-01 to -04: Quadrature, single frequency selection and Sine/Cosine outputs.

All configurations are available with custom frequency selections. Consult factory for a quotation.

These special programs will be assigned a custom suffix (CXX) at the time of order.

 

Specifications

(@ 25°C and Vs ±15 Vdc)

Analog Output Characteristics
Minimum load Impedance
10 k ohm
Maximum capacitive load
50 pF.
Output voltage
± 5 V peak (sine wave)
Offset Voltage
2 mV Typ. 10mV Max.

Power Supply (±Vs)
Analog Vs range
±10Vdc Min to ±15 Vdc Max.
Analog supply current at Max. Vs
17 mA Typ.
Digital PS Voltage
+5 Vdc
Digital supply current
150 mA Typ.
Power consumption at Max. Vs
1.5 watts Max.

Care must be taken to stay above the minimum Vs in order to maintain the linearity and distortion performance of the oscillator.

Temperature
Operating
0 to +70oC
Storage
-25 to +85oC
 

Size

 

2.0" x 2.0" x 0.5"

A socketed development board (SPPDB-01) can double as an oscillator mounting assembly, to facilitate product evaluation or laboratory use.

The SPPDB-01 development board is specified and sold separately.


Pin-Out and Package Data


 

D0 - D7 or 8
 
8- or 9-bit Frequency select pins
D8   Channel select for 8-bit dual Osc.
D9
 
Enable/Latch for 8-bit dual Osc.
Out 1 & 2
 
Oscillator outputs
± 15 Vdc
 
Analog Dc power In
+ 5 Vdc
 
Digital Power In
A Gnd
 
Analog Ground
D Gnd
 
Digital Ground

Ordering Information

Consult factory for custom non-standard frequencies and ranges.
The SPPDB – 01 Mounting Assembly is available for this Oscillator.


We hope the information given here will be helpful. The information is based on data and our best knowledge, and we consider the information to be true and accurate. Please read all statements, recommendations or suggestions herein in conjunction with our conditions of sale which apply to all goods supplied by us. We assume no responsibility for the use of these statements, recommendations or suggestions, nor do we intend them as a recommendation for any use which would infringe any patent or copyright.


Frequency Devices, Inc.
Your engineering partner for signal conditioning
 
  1784 Chessie Lane
Ottawa, IL 61350
Fax: (815) 434-8176
e-mail:
sales@freqdev.com

 

 
Phone: (815) 434-7800
or (800) 252-7074 (U.S. only)

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