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6.4 PERFORMANCE DATA (TYPICAL)

Table 17. Crystal/Oscillator Performance Characteristics

Symbol

Parameter

Condition

Min

Typ

Max

Unit

Crystal Oscillator Frequency

12

MHz

1

Frequency Accuracy

Cumulative over operating

temperature range

-20

+20

ppm

Oscillator Turn-On Time

4ms

Oscillator Input Voltage

External XO input

0.6

2.0

Vpp

ESR

Equivalent Series Resis-

tance

50

100

Ω

Duty Cycle

49

51

%

Phase Noise

100Hz

-105

dBc/H

z

1000Hz

-125

dBc/H

z

BBCLK

Baseband Clock Output

Frequency

12

MHz

1.

Frequency accuracy dependent on crystal or oscillator chosen. Crystal/oscillator must have cumulative accuracy

specifications of +15 ppm to provide margin for frequency drift with ageing and temperature.

Figure 3. Modulation

Figure 4. Transmit Spectrum

Figure 5. Corresponding Eye Diagram

Figure 6. Synthesizer Phase Noise