SPPOSC-02

SPPOSC Series 2” X 2” (Low Distortion) 1 Hz to 102.4 kHz 8 or 9-Bit Frequency Selectable 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 fixed point DSP with 32-bit math, 24bits of resolution and dual channel DACs. Noise floor and distortion are typically –100dB to 20 kHz and < – 80 dB to 100 kHz. Oscillators: Dual Channel & Quadrature Features/ Benefits: • Available in a single, dual or quadrature (0.1° phase stability) form factor, SPPOSC oscillators 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 onboard 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, SPPOCS signal generators require minimal set-up time to provide low noise and distortion signals for laboratory evaluation or precision field installations. • OSCILLATOR SOFTWARE SELECTION GUIDE SPPOSC-01 SWDO-01 SWDO-02 SWQO-01 SWQO-02 SWSO-01 SWSO-02 • Low Frequency Ranges Dual Chl. Prog. Osc. 1 Hz - 256 Hz, 1 Hz Steps Dual Chl. Prog. Osc. 10 Hz - 2.56 kHz, 10 Hz Steps Quadrature Prog. Osc. 1 Hz - 512 Hz, 1 Hz Steps Quadrature Prog. Osc. 10 Hz - 5.12 kHz, 10 Hz Steps Same Prog. Dual Chl. Osc. 1 Hz - 512 Hz, 1 Hz Steps Same Prog. Dual Chl. Osc. 10 Hz - 5.12 kHz, 10 Hz Steps Applications • • • • Low distortion signal source for ATE systems Sound and vibration testing Quadrature signal generator: sine / cosine, standard or custom. Tone generation in speech and hearing analysis, research, pathology Exa m ple Q u a d ra tu re O s c illa t o r A nalog F ilte r s D ual D / A C onv er te r s D ig it a l F ilte r s P r o gra m m em o ry EE-Pr o m F r e que nc y se lect b u s SPPOSC-02 SWDO-03 SWDO-04 SWDO-05 SWQO-03 SWQO-04 SWSO-03 SWSO-04 High Frequency Ranges Dual Chl. Prog. Osc. 100 Hz - 25.6 kHz,100 Hz Steps Dual Chl. Prog. Osc. 200 Hz - 51.2 kHz, 200 Hz Steps Dual Chl. Prog. Osc. 400 Hz - 102.4 kHz, 400 Hz Steps Quadrature Prog. Osc. 100 Hz - 51.2 kHz, 100 Hz Steps Quadrature Prog. Osc. 200 Hz - 102.4 kHz, 200 Hz Steps Same Prog. Dual Chl. Osc. 100 Hz - 51.2 kHz, 100 Hz Steps Same Prog. Dual Chl. Osc. 200 Hz - 102.4 kHz, 200 Hz Steps A nalog I /O Σ∆ Sin e Co s in e Σ∆ Di gi t a l S igna l P r ocesso r CUSTOM SW SWDO-CXX 3 w ir e d igita l ou t p ut b u s Custom Frequency Ranges Custom Dual Chl. Prog. Oscillator Custom Quadrature Prog. Oscillator Custom Same Prog. Dual Chl. Oscillator SWQO-CXX SWSO-CXX 1 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com SPPOSC Series 2” X 2” (Low Distortion) 1 Hz to 102.4 kHz 8 or 9-Bit Frequency Selectable Frequency Selection Data Port Data Format • Logic “0” • Logic “1” Oscillators: Dual Channel & Quadrature 9-Bit Programming Table 0VDC Min – 2VDC Max 3.5VDC Min – 5Vdc Max MSB 28 D8 0 0 0 0 0 0 0 0 0 1 --27 D7 0 0 0 0 0 0 0 0 1 1 --26 D6 0 0 0 0 0 0 0 1 1 1 --25 D5 0 0 0 0 0 0 1 1 1 1 --24 D4 0 0 0 0 0 1 1 1 1 1 --23 D3 0 0 0 0 1 1 1 1 1 1 --22 D2 0 0 0 1 1 1 1 1 1 1 --21 D1 0 0 1 1 1 1 1 1 1 1 LSB 20 D0 0 1 1 1 1 1 1 1 1 1 Bit Weight fc Corner Frequency fmax/512 fmax/256 fmax/128 fmax/64 fmax/32 fmax/16 fmax/8 fmax/4 fmax/2 fmax Bit Weighting (Binary Coded) LSB D0 MSB D7 or D8 (for 9-bits) 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. 8-Bit Programming Table 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. D9 Enable/Latch D8 Ch Sel D0 to D7 Frequency Select MSB 27 D7 0 0 0 0 0 0 0 0 --26 D6 0 0 0 0 0 0 0 1 1 --25 D5 0 0 0 0 0 0 1 1 1 --24 D4 0 0 0 0 0 1 1 1 1 --23 D3 0 0 0 0 1 1 1 1 1 --22 D2 0 0 0 1 1 1 1 1 1 --21 D1 0 0 1 1 1 1 1 1 1 LSB 20 D0 0 1 1 1 1 1 1 1 1 Bit Weight fc Corner Frequency fmax/256 fmax/128 fmax/64 fmax/32 fmax/16 fmax/8 fmax/4 fmax/2 fmax Tsu 21 µsecs min DATA VALID 1 2 1784 Chessie Lane, Ottawa, IL 61350 • Tel: 800/252-7074, 815/434-7800 • FAX: 815/434-8176 e-mail: sales@freqdev.com • Web Address: http://www.freqdev.com SPPOSC Series 2” X 2” (Low Distortion) 1 Hz to 102.4 kHz 8 or 9-Bit Frequency Selectable SPPOSC-01 & 02 Performance Specifications Available Tuning Range 1.00 Hz to 102.4 kHz < ± 0.05 % < ± 0.1 dB < -100dB Max., -105dB Typ. Oscillators: Dual Channel & Quadrature Specifications (@25°C and Vs = ±15 Vdc) Analog Output Characteristics Minimum load Impedance 10 kΩ 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. Frequency Accuracy Amplitude Accuracy Total Broad Band Noise (Ref to 3.53 VRMS) Total Harm. Dist.(THD) (10V peak to peak)