BCM43455 Preliminary Data Sheet
FM Receiver Specifications
Section 16: FM Receiver Specifications
Unless otherwise stated, limit values apply for the conditions specified in Table 25: “Environmental Ratings,” on
page 98 and Table 27: “Recommended Operating Conditions and DC Characteristics,” on page 99. Typical
values apply for the following conditions:
•
•
VBAT = 3.6V
Ambient temperature +25°C
Table 32: FM Receiver Specifications
Conditionsa
Parameter
Minimum Typical Maximum Units
RF Parameters
Operating frequency
b
Frequencies inclusive
65
–
108
MHz
c
FM only
SNR > 26 dB
–
–
–
–1
0.9
–7
–
–
–
dBμV EMF
μV EMF
dBμV
Sensitivity
Receiver adjacent
Measured for 30 dB SNR at the audio output with best tune.
Signal of interest: 23 dBμV EMF (14.1 μV EMF),
c, d
channel selectivity
At ± 200 kHz.
At ± 400 kHz
–
51
62
53
–
–
–
dB
dB
dB
–
Intermediate signal plus Vin = 20 dBμV EMF (10 μV EMF)
45
noise-to-noise ratio
c
(S+N)/N
Intermodulation
performance
Blocker level increased until desired at –
30 dB SNR
Wanted Signal: 33 dBμV EMF (45 μV
55
–
dBc
c, d
EMF)
Modulated Interferer: At f
Wanted
+ 400 kHz and +4 MHz
CW Interferer: At f
+ 8 MHz
+ 800 kHz and
Wanted
c
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
AM suppression, mono
RDS
e, f
RDS deviation = 1.2 kHz
RDS deviation = 2 kHz
–
–
–
–
–
–
16
6.3
10
12
4
–
–
–
–
–
–
dBμV EMF
μV EMF
dBμV
RDS Sensitivity
dBμV EMF
μV EMF
dBμV
6
Broadcom®
November 5, 2015 • 43455-DS109-R
Page 107
BROADCOM CONFIDENTIAL
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