OPA1641-Q1 Datasheet, PDF (14/31 Pages) Texas Instruments – SoundPlus JFET-Input, Automotive-Grade, Audio Operational Amplifiers

OPA1641-Q1, OPA1642-Q1
SBOS791 – JUNE 2017
www.ti.com
Feature Description (continued)
The EMIRR IN+ of the OPA164x-Q1 is plotted versus frequency in Figure 30. If available, any dual and quad
operational amplifier device versions have nearly identical EMIRR IN+ performance. The OPA164x-Q1 unity-gain
bandwidth is 11 MHz. EMIRR performance below this frequency denotes interfering signals that fall within the
operational amplifier bandwidth.
140
120
100
80
60
40
20
0
10M
100M
1G
Frequency (Hz)
10G
C003
Figure 30. OPA164x-Q1 EMIRR vs Frequency
Table 1 lists the EMIRR IN+ values for the OPA164x-Q1 at particular frequencies commonly encountered in real-
world applications. Applications listed in Table 1 can be centered on or operated near the particular frequency
shown. This information can be of special interest to designers working with these types of applications, or
working in other fields likely to encounter RF interference from broad sources, such as the industrial, scientific,
and medical (ISM) radio band.
FREQUENCY
400 MHz
900 MHz
1.8 GHz
2.4 GHz
3.6 GHz
5 GHz
Table 1. OPA164x-Q1 EMIRR IN+ for Frequencies of Interest
APPLICATION AND ALLOCATION
Mobile radio, mobile satellite, space operation, weather, radar, UHF
GSM, radio communication and navigation, GPS (to 1.6 GHz), ISM,
aeronautical mobile, UHF
GSM, mobile personal comm. broadband, satellite, L-band
802.11b/g/n, Bluetooth™, mobile personal comm., ISM, amateur radio and satellite, S-band
Radiolocation, aero comm./nav., satellite, mobile, S-band
802.11a/n, aero communication and navigation, mobile communication,
space and satellite operation, C-band
EMIRR IN+
53.1 dB
72.2 dB
80.7 dB
86.8 dB
91.7 dB
96.6 dB
14
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