SAE800G Просмотр технического описания (PDF) - Siemens AG

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SAE800G

Programmable Single-/Dual-/Triple- Tone Gong

Siemens AG 

SAE 800

Application Hints and Application Circuit

1) Loudness Resistor (max. Load Current of 3-Tone Signal with Ensured Ratio of Amplitudes)

0.8 VS / RQ ≈ (VL / RL) x K

RL = (VL / 0.8 VS) x RQ x K; K = 4800

Example: RQ = 8 Ω; VS = 5 V; VL = 1.2 V

RL = (1.2 / 4) x 8 Ω x 4800 ≈ 12 kΩ

2) Oscillator Elements RR , CC

f = 5 / 8 x 1 / (RR x CC)

Example: f = 13.2 kHz; CC = 4.7 nF

RR = 5 / (8 x 13.2 x 4.7) x 106 Ω ≈ 10 kΩ

The following is a typical application circuit

Application Circuit

Semiconductor Group

7

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