that1290 THAT Corporation, that1290 Datasheet - Page 6
that1290
Manufacturer Part Number
that1290
Description
Low Cost Dual Balanced Line Receiver Ics
Manufacturer
THAT Corporation
Datasheet
1.THAT1290.pdf
(10 pages)
Document 600121 Rev 01
provide enough headroom at its output to support a
+24 dBu input signal. The 1296 (configured for -6
dB gain) attenuates the input signal an additional
3 dB, compared to 1293. Although the noise floor of
1296 is 1.5 dB lower than 1293 noise floor, the
reduction in dynamic range is 3 dB - 1.5 dB =
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Page 6 of 10
1.5 dB. The 1296 attenuates the input signal more
than necessary to support a +24 dBu input.
THAT recommends the -3 dB input configuration
possible only with the 1293 in order to preserve
dynamic range within a reasonable range of power
supply voltages and external headroom limits.
In fact, for most professional audio applications,
Low Cost Dual Balanced Line Receivers
THAT 1290 Series