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
B2
A2, B2
6–10, 13
SR_VLX
O
Cbuck switching regulator
output. Refer to Table 45 on
page 151 for details of the
inductor and capacitor required
on this output.
D1
F2
F1, F2
L1
16, 19, 23, LDO_VDD1P5
26
I
I
I
LNLDO input.
27, 30, 34, LDO_VDDBAT5V
36
LDO VBAT.
H11
N19
136
WRF_XTAL_VDD1P5/
XTAL LDO input (1.35V).
WRF_XTAL_BUCK_VDD1P
5
K12
T19
141
WRF_XTAL_VDD1P2/
WRF_XTAL_OUT_VDD1P2
O
XTAL LDO output (1.2V).
E2
D2
F1
E1
–
K2
G2
J2
24
VOUT_LNLDO
VOUT_CLDO
O
O
O
O
O
Output of LNLDO.
Output of core LDO.
Output of BT LDO.
LDO 3.3V output.
17, 18, 20
33
VOUT_BTLDO2P5
VOUT_3P3
H1
H2
22, 25, 28
29
VOUT_3P3_SENSE
Voltage sense pin for LDO 3.3V
output.
Bluetooth Supplies
N6
N4
V8
92
96
BT_PAVDD/BT_PAVDD2P5 PWR Bluetooth PA power supply.
W5
BT_LNAVDD/
PWR Bluetooth LNA power supply.
BT_LNAVDD1P2
L4
M4
N3
–
W6
V6
V5
–
90
98
99
55
66
BT_IFVDD/BT_IFVDD1P2
PWR Bluetooth IF block power
supply.
BT_PLLVDD/
BT_PLLVDD1P2
PWR Bluetooth RF PLL power
supply.
BT_VCOVDD/
BT_VCOVDD1P2
PWR Bluetooth RF power supply.
BT_VDDC_ISO_1
PWR Core supply for power-on/off
island VDDC_G.
–
–
BT_VDDC_ISO_2
PWR Core supply for power-on/off
island VDDB.
FM Transceiver Supplies
–
–
–
–
–
87
80
–
FM_VCOVDD
PWR FM VCO supply.
–
FM_LNAVDD
PWR FM LNA power supply.
PWR FM LNA VCO power supply.
PWR FM PLL power supply.
N1
L2
FM_LNAVCOVDD1P2
84
FM_PLLVDD/
FM_PLLVDD1P2
–
–
–
–
79
82
FM_IFVDD
PWR FM IF power supply.
FM_DAC_AVDD
PWR FM DAC power supply.
Broadcom®
November 17, 2014 • 4339-DS106-R
Page 110
CYPRESS [ CYPRESS ]
