BCM4330 Preliminary Data Sheet
FM Receiver Specifications
Section 18: FM Receiver Specifications
Note: Values in this data sheet are design goals and are subject to change based on the results of
device characterization.
Unless otherwise stated, limit values apply for the conditions specified inTable 25: “Environmental Ratings,” on
page 118 and Table 27: “Recommended Operating Conditions and DC Characteristics,” on page 119. Typical
values apply for the following conditions:
• Vbatt = 3.6V
• Ambient temperature +25°C
Table 32: FM Receiver Specifications
Parameter
Conditions
Minimum Typical Maximum Units
RF Parameters
a
Operating frequency
Sensitivity , VRF
Frequencies inclusive
65
–
–
–
1.09
–5
108
3.44
5
MHz
µV EMF
dBuV
b
FM only,
fmod = 1 kHz,
Δf = 22.5 kHz,
(S+N)/N = 26 dB,
BAF = 300 Hz to 15 kHz,
A-weighted,
Deemphasis = 50 µs,
fIN = 76 to 108 MHz
RDS. For an RDS deviation of 1.2 kHz. 95% –
8.64
13
15.36
18
µV EMF
dBuV
of blocks decoded with no errors, over a
sample of 5000 blocks.
–
RDS. For an RDS deviation of 2 kHz. 95% of –
5.45
9
10.87
15
µV EMF
dBuV
blocks decoded with no errors, over a
sample of 5000 blocks.
–
RDS selectivity
Wanted RF level = RDS sensitivity + 3 dB,
2 kHz deviation.
Interferer 40-kHz deviation 1 kHz tone.
Interferer level for 5% BLER
±200 kHz
–
–
–
–
50
60
–
–
–
–
–
dB
dB
dB
dB
±400 kHz
Image frequency
c
Receiver adjacent
channel selectivity
At ±200 kHz.
50
fIN = 65 to 108 MHz.
Measured for 26 dB SNR at the audio
output.
At ±300 kHz and above
–
60
–
dB
®
BROADCOM
BCM4330 Preliminary Data Sheet
April 28, 2011 • 4330-DS304-RI
Page 128
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