bc41b143a07 ETC-unknow, bc41b143a07 Datasheet - Page 61

• Manufacturer Part Number: bc41b143a07
• Description: Single Chip Bluetooth
• Manufacturer: ETC-unknow

Crystal parameters:
Circuit parameters:
Note:
9.4
This is a standard Universal Asynchronous Receiver Transmitter (UART) interface for communicating with other serial
devices.
BlueCore4-ROM UART interface provides a simple mechanism for communicating with other serial devices using the
RS232 protocol.
CS-101564-DSP12
Crystal frequency 16MHz (refer to your software build release note for supported frequencies).
Crystal C
C
C
(Crystal total load capacitance 8.5pF)
This is for a specific crystal and load capacitance.
(1)
trim
t1
,C
Uses RS232 protocol, but voltage levels are 0V to VDD_USB (requires external RS232 transceiver chip).
= 8pF, maximum value
t2
UART Interface
= 5pF (3.9pF plus 1.1 pF stray)
0
Figure 9.7: Crystal Driver Negative Resistance as a Function of Drive Level Setting
= 0.75pF
(1)
Production Information
© CSR plc 2003-2007
Device Terminal Descriptions
Page 61 of 97