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> (6) programmable op-amps, low noise audio pre-amp
(6) programmable op-amps, low noise audio pre-amp
(6) Dual Op-Amp TA7705, DIP-16
Internal Input / Output Control Switches
Datasheet: Toshiba TA7705P (433k PDF)
See application schematics below.
Experimenters, here's a RARE find. Check the datasheet and schematics below. Notice the unique internal electronic switches on both the input and output paths! This is a high performance low-noise, high-gain Op-Amp designed for a car autoreverse tape player. But the input and output switches, operating independently, will work in a wide range of non-automotive applications too. These extraordinary Op-Amps offer some real exciting possibilities for a creative amateur or technician. Have some fun incorporating one of these into your next stereo or radio design.
Single Vcc Supply: 6 to 16 Volts
* Select either A or B input signals
* Turn the A input On or Off
* Select a voltage divider to adjust gain
* Cascade amps for higher gain
* Switch between Stereo and Mono
* Swap audio inputs between amps
* Select magnetic tape equalization
* Turn the outputs On or Off
* Switch between Stereo or Mono
* Make a Monitor output port
* Make a fixed / variable output selector
Just the tip of the iceberg! Examples below: Each switch is shown configured 2 ways.
NOTE: The input and output switches can be configured and operated independently.
Configured for Input Attenuation
or Right-Click on the schematics and Zoom In for the Mega-View.
