5173N24-U THAT, 5173N24-U Datasheet - Page 16

• Manufacturer Part Number: 5173N24-U
• Description: Microphone Preamplifiers 36V, 100mA
• Manufacturer: THAT

Specifications of 5173N24-U

• Rohs: yes
• Common Mode Rejection Ratio (min): - 9 dB
• Input Offset Voltage: - 1.75 mV to + 1.75 mV
• Maximum Operating Temperature: + 85 C
• Package / Case: QFN-24
• Input Voltage Range (max): 3.6 V, 17 V
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 3 V to 3.6 V, 4.75 V to 17 V
• Operating Temperature Range: - 40 C to + 85 C
• Supply Current: 2 uA, 7.6 mA
• Supply Voltage - Max: 3.6 V, 17 V
• Supply Voltage - Min: 3 V, 4.75 V
• Thd Plus Noise: 0.001 %
• Voltage Gain Db: 60 dB

Document 600166 Rev 01
by-side, with pins 1 through 4 on the 1570 facing
pins 1 through 6 on the 5173. See Figure 13 for a
suggested layout.
tance on the Rg pins, and to ensure that power sup-
ply lines do not run close and/or parallel to either the
input signal lines or the traces and pins connected to
the Rg pins. For current feedback amplifiers such as
the 1570, stray capacitance from the Rg pins (invert-
ing input) to ground or power planes results in
higher gains at high frequencies. As a result, mis-
matches in the capacitance on these two nodes will
degrade
frequencies.
carry non-linear (e.g., half-wave rectified) versions of
the signal can magnetically and capacitively couple
Figure 13. Recommended THAT1570/THAT5173 PCB
The 5173 and 1570 are intended to lay out side-
Designers should take care to minimize capaci-
Additionally, power supply lines, which often
Layout (mounted on same-side of PCB).
common-mode
THAT
1570
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performance
Copyright © 2012, THAT Corporation; All rights reserved.
THAT5173
PCB Layout Information
at
high
Page 16 of 20
tion, particularly at high gains.
plane under the IN
traces. We also recomend a symmetrical PCB layout
to match the capacitance on these nodes.
mend that the metal “slug” on the bottom of the QFN
package be soldered to provide physical attachment
and improve thermal performance. It may be left
unconnected electrically, or connected to V
lowing advice offered by Henry W. Ott in his recent
book Electromagnetic Compatibility Engineering,
published in August 2009 by Wiley (ISBN: 978-0-
470-18930-6). In it, Mr. Ott recommends laying out
the digital and analog ground scheme using ground
planes as if they were separate planes, but do not
actually separate them in the final design. As noted
earlier, all bypass capacitors should be located very
close to their respective power and ground pins. In
particular, for the digital supplies, C16 should con-
nect close to pins 11 and 12.
stration circuit board for the 5173/1570, available
from THAT. While the board itself is of course useful
to designers, the layout and schematic are published
in the data sheet which covers the board, and is
available for downloading from THAT’s web site.
into the input and Rg lines. This can create distor-
Therefore, THAT recommends avoiding ground
As is customary with QFN packages, we recom-
When laying out the board, we recommend fol-
A useful reference for PCB layout is the demon-
Audio Preamplifier Digital Controller IC
1
and IN
2
pins and associated
EE
THAT5173
.