0.0

20.0

40.0

60.0

80.0

100.0

120.0

140.0

160.0

10M

100M

1G

10G

Frequency (Hz)

C017

P

V

V

20

TLV197-Q1, TLV2197-Q1, TLV4197-Q1

SBOS935 – APRIL 2020

www.ti.com

Product Folder Links: TLV197-Q1 TLV2197-Q1 TLV4197-Q1

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Copyright © 2020, Texas Instruments Incorporated

Feature Description (continued)

7.3.2 EMI Rejection

The TLVx197-Q1 uses integrated electromagnetic interference (EMI) filtering to reduce the effects of EMI from

sources such as wireless communications and densely-populated boards with a mix of analog signal chain and

digital components. EMI immunity can be improved with circuit design techniques; the TLVx197-Q1 benefits from

these design improvements. Texas Instruments has developed the ability to accurately measure and quantify the

immunity of an operational amplifier over a broad frequency spectrum extending from 10 MHz to 6 GHz.

Figure 36 shows the results of this testing on the TLVx197-Q1. Table 1 shows the EMIRR IN+ values for the

TLVx197-Q1 at particular frequencies commonly encountered in real-world applications. Applications listed in

Table 1 may be centered on or operated near the particular frequency shown. Detailed information can also be

found in the EMI Rejection Ratio of Operational Amplifiers application report, available for download from

www.ti.com.

Figure 36. EMIRR Testing

Table 1. TLVx197-Q1 EMIRR IN+ For Frequencies of Interest

FREQUENCY

APPLICATION OR ALLOCATION

EMIRR IN+

400 MHz

Mobile radio, mobile satellite, space operation, weather, radar, ultra-high frequency (UHF) applications

44.1 dB

900 MHz

Global system for mobile communications (GSM) applications, radio communication, navigation, GPS

(to 1.6 GHz), GSM, aeronautical mobile, UHF applications

52.8 dB

1.8 GHz

GSM applications, mobile personal communications, broadband, satellite, L-band (1 GHz to 2 GHz)

61.0 dB

2.4 GHz

medical (ISM) radio band, amateur radio and satellite, S-band (2 GHz to 4 GHz)

69.5 dB

3.6 GHz

Radiolocation, aero communication and navigation, satellite, mobile, S-band

88.7 dB

5 GHz

802.11a, 802.11n, aero communication and navigation, mobile communication, space and satellite

operation, C-band (4 GHz to 8 GHz)

105.5 dB