BCM4339 Preliminary Data Sheet
FM Receiver Specifications
Section 16: FM Receiver Specifications
Unless otherwise stated, limit values apply for the conditions specified inTable 31: “Environmental Ratings,” on
page 123 and Table 33: “Recommended Operating Conditions and DC Characteristics,” on page 124. Typical
values apply for the following conditions:
•
•
VBAT = 3.6V
Ambient temperature +25°C
Table 38: FM Receiver Specifications
Conditionsa
Typica
Minimum l
Parameter
Maximum Units
RF Parameters
Operating frequencyb
Sensitivityc
Frequencies inclusive
65
–
–
0
108
–
MHz
FM only
SNR > 26 dB
dBµV
EMF
–
–
1
–
–
µV EMF
dBuV
–6
Receiver adjacent
channel selectivityc, d
Measured for 30 dB SNR at the audio output with best tune.
Signal of interest: 23 dBµV EMF (14.1 µV EMF),
At ± 200 kHz.
At ± 400 kHz
–
51
62
53
–
–
–
dB
dB
dB
–
Intermediate signal plus Vin = 20 dBµV EMF (10 µV EMF)
noise-to-noise ratio (S+N)/
45
Nc
Intermodulation
performancec, d
Blocker level increased until desired at
30 dB SNR
Wanted Signal: 33 dBµV EMF (45 µV
EMF)
–
55
–
dBc
Modulated Interferer: At fWanted
+ 400 kHz and +4 MHz
CW Interferer: At fWanted + 800 kHz and
+ 8 MHz
AM suppression, monoc
Vin = 23 dBµV EMF (14.1 µV EMF)
AM at 400 Hz with m = 0.3
No A-weighted or any other filtering
applied.
40
–
–
dB
Broadcom®
November 17, 2014 • 4339-DS106-R
Page 133
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