BCM43455 Preliminary Data Sheet
Recommended Operating Conditions and DC Characteristics
Recommended Operating Conditions and DC Characteristics
Caution! Functional operation is not guaranteed outside of the limits shown in Table 27. Operation
outside these limits for extended periods can adversely affect long-term reliability of the device.
Note: For DC absolute maximum rating (AMR), see Table 24 on page 97.
Table 27: Recommended Operating Conditions and DC Characteristics
Value
Parameter
Symbol
VBAT
VDD
Minimum
Typical Maximum
Unit
a
b
DC supply voltage for VBAT
DC supply voltage for core
–
V
3.0
5.25
1.26
1.26
1.98
3.63
3.46
0.95
0.7
1.14
1.14
1.2
1.2
1.8
–
V
V
V
V
V
V
V
DC supply voltage for RF blocks in chip VDDRF
DC supply voltage for TCXO input buffer WRF_TCXO_VDD 1.62
DC supply voltage for digital I/O
DC supply voltage for RF switch I/Os
External TSSI input
VDDIO
1.62
3.13
0.15
0.4
VDDIO_RF
TSSI
3.3
–
Internal POR threshold
Vth_POR
–
Other Digital I/O Pins
For VDDIO = 1.8V:
Input high voltage
VIH
0.65 × VDDIO –
–
V
Input low voltage
VIL
–
–
0.35 × VDDIO V
Output high voltage @ 2 mA
Output low voltage @ 2 mA
For VDDIO = 3.3V:
VOH
VOL
VDDIO – 0.45 –
–
V
V
–
–
0.45
Input high voltage
VIH
2.00
–
–
–
–
–
V
V
V
V
Input low voltage
VIL
–
0.80
–
Output high voltage @ 2 mA
Output low Voltage @ 2 mA
VOH
VOL
VDDIO – 0.4
–
0.40
RF Switch Control Output Pinsc
For VDDIO_RF = 3.3V:
Output high voltage @ 2 mA
Output low voltage @ 2 mA
Output capacitance
VOH
VOL
VDDIO – 0.4
–
–
–
–
V
–
–
0.40
5
V
C
pF
OUT
a. The BCM43455 is functional across this range of voltages. Optimal RF performance specified in the data sheet,
however, is guaranteed only for 3.2V < VBAT < 4.8V.
b. The maximum continuous voltage is 5.25V.
c. Programmable 2 mA to 16 mA drive strength. Default is 10 mA.
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 99
BROADCOM CONFIDENTIAL
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