BC352239A Datasheet, PDF (55/116 Pages) List of Unclassifed Manufacturers – BlueCore 3-Multimedia External

8.3.7 Crystal Oscillator Characteristics
Device Terminal Descriptions
1000.0
Crystal Load Capacitance and Series Resistance Limits with Crystal Frequency
100.0
10.0
2.5
3.5
8 MHz
20 MHz
32 MHz
4.5
5.5
12 MHz
24 MHz
6.5
7.5
8.5
Load Capacitance (pF)
16 MHz
28 MHz
9.5
10.5
11.5
12.5
Figure 8.15: Crystal Load Capacitance and Series Resistance Limits with Crystal Frequency
Note:
Graph shows results for BlueCore3-Multimedia External crystal driver at maximum drive level.
Conditions:
C_trim = 3.4pF centre value
Crystal C_o = 2pF
Transconductance setting = 2mA/V
Loop gain = 3
C_t1/C_t2 = 3
BC352239A-ds-001Pc
© Cambridge Silicon Radio Limited 2004
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