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Old 18th April 2010, 04:12 AM   #1
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Default what does a dotted line to ground mean on schematic?

Hello, I am building a small amp on perf/bread board using NJM2073d in stereo mode, and the schematic has dotted lines coming from a capacitor on each output channel going to ground, does this mean I am supposed to join these grounds together separate from the other grounds in the circuit?


its on page 4 of the data sheet.
NJM2073D pdf, NJM2073D description, NJM2073D datasheets, NJM2073D view ::: ALLDATASHEET :::

thanks for any help
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Old 18th April 2010, 05:24 AM   #2
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The use of dashed lines in schematics usually indicates an optional component(s) or connection. In this case the inclusion of a capacitor and resistor to control oscillation of this amplifier working in conjunction with certain speaker loads.

NJM2073D pdf, NJM2073D description, NJM2073D datasheets, NJM2073D view ::: ALLDATASHEET :::
page 5-40

Hope this helps
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Old 18th April 2010, 05:32 AM   #3
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Thanks for clearing that up. it shows the bridged circuit in the oscillation blurb, I wasn't sure if it was the same for the stereo circuit, I am still a noob, lol

thanks again.
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