BC41B143A-DS-002PD Datasheet, PDF (53/89 Pages) List of Unclassifed Manufacturers – BlueCore 4-ROM CSP EDR Single Chip Bluetooth v2.0 + EDR System

Device Terminal Descriptions
Actual Allowable Clock Presence Delay on XTAL_IN vs. PSKey Setting
30.0
25.0
20.0
15.0
10.0
5.0
0.0
0.0
5.0
10.0
15.0
20.0
25.0
30.0
PSKEY_CLOCK_STARTUP_DELAY
Figure 11.4: Actual Allowable Clock Presence Delay on XTAL_IN vs. PS Key Setting
11.2.5 Input Frequencies and PS Key Settings
BlueCore4-ROM CSP should be configured to operate with the chosen reference (XTAL_IN) frequency. This is
accomplished by setting the PS Key PSKEY_ANA_FREQ. The input frequency default setting in BlueCore4-ROM
CSP is 26MHz.
The following CDMA/3G TCXO frequencies are also catered for: 7.68, 14.4, 15.36, 16.2, 16.8, 19.2, 19.44, 19.68,
19.8 and 38.4MHz.
Reference Crystal Frequency (MHz)
7.68
14.40
15.36
16.20
16.80
19.20
19.44
19.68
19.80
38.40
n x 250kHz
+26.00 Default
PSKEY_ANA_FREQ (Units of 1kHz)
7680
14400
15360
16200
16800
19200
19440
19680
19800
38400
-
26000
Table 11.3: PS Key Values for CDMA/3G Phone TCXO Frequencies
BC41B143A-ds-002Pd
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© Cambridge Silicon Radio Limited 2005
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