PRELIMINARY
CYW43340
Table 17. WLBGA Signal Descriptions (Cont.)
WLBGA Ball
Signal Name
Type
Description
Integrated Voltage Regulators
N2
P2
N1
SR_VDDBATA5V
SR_VDDBATP5V
SR_VLX
I
Quiet VBAT
Power VBAT
I
O
CBUCK switching regulator output. See Table
35 on page 77 for details of the inductor and
capacitor required on this output.
P3
LDO_VDD1P5
I
Input for the LNLDO, CLDO, and HSIC LDOs. It
is also the voltage feedback pin for the CBUCK
regulator.
P4
N3
VOUT_LNLDO
VOUT_CLDO
O
Output of low-noise LNLDO
Output of core LDO
O
Bluetooth Power Supplies
A6
A8
C8
B8
A9
BT_PAVDD
BT_LNAVDD
BT_IFVDD
I
Bluetooth PA power supply
Bluetooth LNA power supply
Bluetooth IF block power supply
Bluetooth RF PLL power supply
Bluetooth RF power supply
I
I
BT_PLLVDD
BT_VCOVDD
I
I
FM Receiver Power Supplies
D10
A11
FM_PLLVDD
I
FM PLL power supply
FM_LNAVCOVDD
I
FM VCO and receiver power supply pin
WLAN Power Supplies
F4
WRF_BUCK_VDD1P5
I
Internal LDO supply from CBUCK for VCO,
AFE, TX, and RX
B3
B5
D4
A1
A3
F2
H3
WRF_CBUCK_PAVDD1P5
WRF_PA2G_VBAT_VDD3P3
WRF_PADRV_VBAT_VDD3P3
WRF_PAPMU_VBAT_VDD5P0
WRF_PAPMU_VOUT_LDO3P3
WRF_SYNTH_VDD1P2
I
NO_CONNECT
I
2G PA 3.3V Supply
I
3.3V supply for A/G band PAD
PAPMU VBAT power supply
PAPMU 3.3V LDO output voltage
Synth VDD 1.2V input
I
O
I
WRF_TCXO_VDD1P8
I
Supply to the WRF_TCXO_CKIN input buffer.
When not using a TCXO, this pin should be
connected to ground.
F1
WRF_XTAL_CAB_VDD1P2
I
XTAL oscillator supply
Document Number: 002-14943 Rev. *L
Page 50 of 96
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