2162-DEMO THAT, 2162-DEMO Datasheet - Page 5

• Manufacturer Part Number: 2162-DEMO
• Description: Audio IC Development Tools Pre-Trimmed VCA Demo Board
• Manufacturer: THAT
• Type: Audio Amplifiersr

Specifications of 2162-DEMO

• Product Category: Audio IC Development Tools
• Rohs: yes
• Product: Demonstration Boards
• Tool Is For Evaluation Of: 2162Q16-U
• Operating Supply Voltage: +/- 12 V to +/- 18 V
• Dimensions: 5 in x 7 in x 1.5 in
• Operating Supply Current: 80 mA

Document 600129 Rev 02
H5 (this option is necessary for Pan and Crossfade modes, explained later). The
on-board GAIN potentiometer, or the Chan 1 and Chan 2 External CV inputs, can
be used to control the VCAs, selected via jumpers H1 and H4.
In Figure 1b a pan conditioning circuit has been added. Please read THAT Corpo-
ration Design Note 120 - VCAs in Pan Potentiometer Application for details on
how this circuit works. In a nutshell, this conditioning circuit creates the proper
CV to give a "sin/cos" "equal-power" taper. Jumpers H2 and H3 select whether the
Pan CV is summed with the Gain CV (thereby enabling the Pan function). Of
course, for the Pan function to work, a single input signal must be steered
between both outputs. Jumper H5 optionally feeds the Chan 1 input to both
halves of the VCA in MONO input mode to enable the Pan function.
Note that Stereo Balance can be enabled by running the circuit in Figure 1b with
separate "left" and "right" inputs (corresponding to Chan 2 and Chan 1 respec-
tively). Thus, jumper H5 must be set for STEREO input mode for Balance to
work.
E xt . C V
E xt . C V
In pu t 1
In pu t 2
C h an 2
C ha n 1
In pu t
In p ut
Figure 1b -- Block diagram of THAT2162 DEMO BOARD, Pan and Balance added
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Tel: [phone]; Fax: [phone]; Web: www.thatcorp.com
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THAT Corporation; 45 Sumner Street; Milford, MA 01757-1656; USA
(Jum per H5)
C h 2 In p ut
S e le c t
Copyright © 2011, THAT Corporation
C V S e le c t/
(Ju m pe rs:
2 1 62 -B
21 6 2- A
H1, H4 )
S c a le
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Pa n C i rc ui t
(Ju m pe rs:
i t o v
i t o v
H2, H3 )
G a in P o t
THAT 2162-DEMO User’s Guide
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P a n/ Ba l
P ot
C h an 1
C h an 2
O u tp ut
O u tp ut