AD8333

Data Sheet

Rev. E | Page 9 of 32

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 PHASE (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, Channel 2 with Respect to

Channel 1; Channel 1 Is Fixed at 0°, Channel 2 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 Channel 2 with Respect to Channel 1 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 Channel 2 with Respect to Channel 1 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 Channel 2 with Respect to Channel 1 vs.

Code at 1 MHz and 5 MHz

20µs

500mV

Figure 12. I or Q Output of Channel 2 with Respect to Channel 1,

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