BC41B143A-ANN-E4 ETC, BC41B143A-ANN-E4 Datasheet - Page 53

• Manufacturer Part Number: BC41B143A-ANN-E4
• Description: Bluecore 4-rom CSP EDR Single Chip Bluetooth v2.0 + EDR System
• Manufacturer: ETC

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.
BC41B143A-ds-002Pd
Reference Crystal Frequency (MHz)
30.0
25.0
20.0
15.0
10.0
5.0
0.0
0.0
Figure 11.4: Actual Allowable Clock Presence Delay on XTAL_IN vs. PS Key Setting
+26.00 Default
Table 11.3: PS Key Values for CDMA/3G Phone TCXO Frequencies
n x 250kHz
14.40
15.36
16.20
16.80
19.20
19.44
19.68
19.80
38.40
7.68
5.0
This material is subject to CSR’s non-disclosure agreement
Actual Allowable Clock Presence Delay on XTAL_IN vs. PSKey Setting
© Cambridge Silicon Radio Limited 2005
10.0
Production Information
PSKEY_CLOCK_STARTUP_DELAY
15.0
PSKEY_ANA_FREQ (Units of 1kHz)
20.0
14400
15360
16200
16800
19200
19440
19680
19800
38400
26000
7680
25.0
Device Terminal Descriptions
-
30.0
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