Handbook for Sound Engineers

852 Chapter 25 connected back to back to form close to ideal bidirec- tional analog transmission gates, are manufactured in all ...

Consoles 853 noise and crosstalk characteristics are a good order of magnitude superior to any analog multitrack recorder, so th ...

854 Chapter 25 ance question becomes self-defeating eventually. The more current is chucked around, the worse the ground noise i ...

Consoles 855 25.9.9 Processor Control The seemingly great mass of logic circuitry enclosed in the dotted lines allows the card t ...

856 Chapter 25 Figure 25-33. Processor-controllable matrix routing circuit. ...

Consoles 857 Figure 25-33. Processor-controllable matrix routing circuit. Continued. ...

858 Chapter 25 25.10 Input Amplifier Design A console is expected to accept signals of wildly varying input level and impedance ...

Consoles 859 seemingly endless number of variables. A dynamic microphone may be represented (a little simplistically) as a volta ...

860 Chapter 25 Another good reason for not terminating with an equal or any fairly low resistance is the effect on micro- phone ...

Consoles 861 considered. Measured alone, low-frequency noise has its own set of collector current and source resistance nulls, u ...

862 Chapter 25 they do offer a good to excellent solution to impedance matching and sundry other problems facing input stage des ...

Consoles 863 between windings means unwanted leakage and imper- fect isolation, while winding self-capacitance reacts with the w ...

864 Chapter 25 input-impedance amp terminated only by the collection of vile resonances and phase-shifting elements that are an ...

Consoles 865 responses. Common-mode unrejected signals still appear at the amplifier input as if nothing had happened. 25.10.6.6 ...

866 Chapter 25 25.10.6.8 Transformerless Front Ends Bringing the amplifier optimum source impedance down to that of conventional ...

Consoles 867 the (hopefully) optimized input pair reigns. This is mostly down to the impedances chosen around the op-amp differe ...

868 Chapter 25 and excellent isolation properties are really needed. And then only really good ones. Most high-level interfacing ...

Consoles 869 A pair of inverting amplifiers, shown in Fig. 25-49, provides a simple, hardy, easily defined differential (but not ...

870 Chapter 25 voltage equal to the unbalanced input voltage appearing between their outputs. (Two 6 dB quantities sum to make ...

Consoles 871 resistors—manifests itself also as sometimes quite substantial dc offsets that will likely have to be trimmed to no ...