BCM4339 Preliminary Data Sheet
Signal Descriptions
Table 20: FCFBGA, WLBGA, and WLCSP Signal Descriptions (Cont.)
WLBGA
Ball#
FCFBGA
Ball#
WLCSP
Bump#
Signal Name
Type Description
–
R1
R2
–
47
48
78
75
86
BT_SF_CSN
BT_SF_MISO
FM_RFIN
I/O SFLASH_CSN
I/O SFLASH_SO
–
N2
–
I
I
FM Radio antenna port.
–
FM_RFAUX
FM radio auxiliary antenna port.
FM DAC output 1.
K1
–
FM_DAC_VOUT1/
FM_AOUT1
O
L1
–
85
FM_DAC_VOUT2/
FM_AOUT2
O
FM DAC output 2.
Bluetooth PCM
G2
–
46
BT_PCM_CLK/BT_PCMCLK I/O PCM clock; can be master
(output) or slave (input).
G1
J3
–
–
–
48
49
47
BT_PCM_IN
I
PCM data input.
PCM data output.
BT_PCM_OUT
BT_PCM_SYNC
O
H2
I/O PCM sync; can be master
(output) or slave (input).
Bluetooth USB Interface
–
N1
40
41
HUSB_DN
HUSB_DP
I/O USB (Host) data negative.
Negative terminal of the USB
transceiver.
–
N2
I/O USB (Host) data positive.
Positive terminal of the USB
transceiver.
Bluetooth UART
E6
T3
50
51
BT_UART_CTS_N/
BT_UART_CTS
I
UART clear-to-send. Active-low
clear-to-send signal for the HCI
UART interface.
F6
V1
BT_UART_RTS_N/
BT_UART_RTS/BT_LED
O
UART request-to-send. Active-
low request-to-send signal for
the HCI UART interface. BT
LED control pin.
G6
F7
W1
W2
52
53
BT_UART_RXD/
BT_RFDISABLE2
I
UART serial input. Serial data
input for the HCI UART
interface. BT RF disable pin 2.
BT_UART_TXD
O
UART serial output. Serial data
output for the HCI UART
interface.
Bluetooth/FM I2S
I2S clock, can be master
(output) or slave (input).
J6
R3
44
BT_I2S_CLK
I/O
I2S data output.
I2S data input.
K6
K5
U2
U3
42
43
BT_I2S_DO
BT_I2S_DI
I/O
I/O
Broadcom®
November 17, 2014 • 4339-DS106-R
Page 108
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