TSH80-TSH81-TSH82

Inter Modulation Products

15/23

The IFR2026 synthesizer generates a two tones signal (F1=180kHz, F2=280kHz); each tone

having the same amplitude level.

The HP3585 spectrum analyzer measures the inter modulation products function of the output

voltage. The generator and the spectrum analyzer are phase locked for precision

considerations.

Figure 28. Standby mode - Ton, Toff

Figure 29. Group delay

Vcc=

±5V, Open Loop

Gain=2, Vcc=

Figure 30. Third order inter modulation

Gain=2, Vcc=

0

2E-6

4E-6

6E-6

8E-6

Time (s)

-5

0

5

Vout

Standby

Ton

Toff

Vin

Group

Delay

Gain

5.1ns

01

2

3

4

Vout peak(V)

-100

-90

-80

-70

-60

-50

-40

-30

-20

-10

0

80kHz

380kHz

640kHz

740kHz