AD8333

Rev. A | Page 8 of 28

TYPICAL PERFORMANCE CHARACTERISTICS

per channel performance, differential voltages, dBm (50 Ω), phase select code = 0000, unless otherwise noted (see Figure 41).

1.5

–1.5

–2.0

2.0

REAL (Normalized)

1.0

0.5

0

–0.5

–1.0

–1.5

–1.0

–0.5

0

0.5

1.0

1.5

CODE 0000

CODE 0100

CODE 1100

CODE 1000

CODE 0001

CODE 0010

CODE 0011

f = 1MHz

Q

I

Figure 8. Normalized Vector Plot of Phase, CH2 with Respect to CH1;

CH1 Is Fixed at 0°, CH2 Stepped 22.5°/Step, All Codes Displayed

360

0

0000

1111

CODE (Binary)

315

270

225

180

135

90

45

0010

0100

0110

1000

1010

1100

1110

1MHz

5MHz

Figure 9. Phase of CH2 with Respect to CH1 vs. Code, at 1 MHz and 5 MHz

1.0

–1.0

0000

1111

CODE (Binary)

0.5

0

–0.5

–1.0

1.0

0.5

0

–0.5

0010

0100

0110

1000

1010

1100

1110

f = 5MHz

f = 1MHz

Figure 10. Amplitude Error of CH2 with Respect to CH1 vs.

Code at 1 MHz and 5 MHz

2

–2

0000

1111

CODE (Binary)

1

0

–1

–2

2

1

0

–1

0010

0100

0110

1000

1010

1100

1110

f = 5MHz

f = 1MHz

Figure 11. Phase Error of CH2 with Respect to CH1 vs.

Code at 1 MHz and 5 MHz

20µs

500mV

Figure 12. I or Q Output of CH2 with Respect to CH1, First Quadrant Shown

7

3

1M

50M

RF FREQUENCY (Hz)

10M

6

5

4

CHANNEL 1, I OUTPUT SHOWN

CODE 0000

CODE 0001

CODE 0010

CODE 0011

Figure 13. Conversion Gain vs. RF Frequency, First Quadrant,

Baseband Frequency = 10 kHz