ZL40800 and ZL40802

Data Sheet

9

Zarlink Semiconductor Inc.

Single Ended or Differential Load

Figure 12 and Figure 13 illustrate the output waveform when measured differential and single ended with a 6GHz

waveform at the input at a level of +2dBm. The single ended output contains some input frequency breakthrough

which contributes to the distortion present. This is a common mode signal which is rejected if the output is taken

differentially.

Differential operation also provides an additional 3dB. Differential Operation reduces the radiated EMI in the system

and reduces the susceptibility to common mode system noise.

Figure 12 - ZL40800 Pout / Input Frequency

Figure 13 - ZL40800Pout v Input Frequency

(Vcc=3.3V, T= -40C,25C, 85C)

ZL40800_Dev1 (/8) with 400R pull-ups

Frequency_sweep, Vcc = 3.6v

-6

-5

-4

-3

-2

-1

0

1

0

1E+09

2E+09

3E+09

4E+09

5E+09

6E+09

7E+09

8E+09

i/p frequency (Hz)

Device 1,Temperature = 25°C

Device 1,Temperature = 85°C

ZL40802_dev1_Frequency_sweep, Vcc = 3.3v

-8

-7

-6

-5

-4

-3

-2

-1

0

1000000000

10000000000

i/p frequency (Hz)

Device 1,Temperature = -40°C

Device 1,Temperature = 25°C

Device 1,Temperature = 85°C