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BC41B143A-ds-003Pc
Advance Information
© Cambridge Silicon Radio Limited 2005
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Package Information
3.2
BC41B143A-ANN-E4 Device Terminal Functions
Radio
Ball
Pad Type
Description
RF_IN
D2
Analogue
Single ended receiver input
PIO[0]/RXEN
D3
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
PIO[1]/TXEN
C4
Bi-directional with
programmable strength
internal pull-up/down
Programmable input/output line
BAL_MATCH
A1
Analogue
Tie to VSS_RADIO
RF_CONNECT
B1
Analogue
50
Ω RF matched I/O
AUX_DAC
C2
Analogue
Voltage DAC output
Synthesiser and
Oscillator
Ball
Pad Type
Description
XTAL_IN
L3
Analogue
For crystal or external clock input
XTAL_OUT
L4
Analogue
Drive for crystal
PCM Interface
Ball
Pad Type
Description
PCM_OUT
G10
CMOS output, tristatable with
weak internal pull-down
Synchronous data output
PCM_IN
H11
CMOS input, with weak
internal pull-down
Synchronous data input
PCM_SYNC
G11
Bi-directional with weak
internal pull-down
Synchronous data sync
PCM_CLK
H10
Bi-directional with weak
internal pull-down
Synchronous data clock
USB and UART
Ball
Pad Type
Description
UART_TX
J10
CMOS output, tri-state with
weak internal pull-up
UART data output active low
UART_RX
J11
CMOS input with weak internal
pull-down
UART data input active low (idle status high)
UART_RTS
L11
CMOS output, tristatable with
weak internal pull-up
UART request to send active low
UART_CTS
K11
CMOS input with weak internal
pull-down
UART clear to send active low
USB_DP
L9
Bi-directional
USB data plus with selectable internal 1.5k
Ω
pull-up resistor
USB_DN
L8
Bi-directional
USB data minus