BCM4354 Data Sheet
FM Receiver Specifications
Table 37: FM Receiver Specifications (Cont.)
Typica
Minimum l Maximum Units
Parameter
Conditionsa
Search time
Total time for an automatic search to
sweep from 88–108 MHz or 76–90 MHz
(and reverse direction) assuming no
channels are found.
–
–
8
sec
General Audio
Audio output levelg
Maximum audio output
levelh
–
–
–14.5
–
–
–
–12.5
0
dBFS
dBFS
Audio DAC output levelg
Maximum DAC audio
output levelh
–
–
72
–
–
88
–
mV rms
mV rms
333
Audio DAC output level
differencei
–
–1
–
1
dB
Left and right AC mute
FM input signal fully muted with DAC
enabled
60
80
–
–
–
–
–
–
–
dB
dB
–
Left and right hard mute FM input signal fully muted with DAC
disabled
Soft mute attenuation and Muting is performed dynamically
start level
proportional to the FM wanted input
signal C/N. The muting characteristic is
fully programmable. Refer to “Audio
Features” on page 63 for further details.
Maximum signal plus
noise-to-noise ratio
–
–
–
–
69
64
–
–
dB
dB
%
(S + N)/N, mono i
Maximum signal plus
noise-to-noise ratio
(S + N)/N, stereog
–
–
Total harmonic distortion, Vin = 66 dBµV EMF (2 mV EMF),
0.8
mono
∆f = 75 kHz, fmod = 400 Hz
∆f = 75 kHz, fmod = 1 kHz
∆f = 75 kHz, fmod = 3 kHz
∆f = 100 kHz, fmod = 1 kHz
–
–
–
–
–
–
–
–
0.8
0.8
1.0
1.5
%
%
%
%
Total harmonic distortion, Vin = 66 dBµV EMF (2 mV EMF)
stereo
∆f = 67.5 kHz, fmod = 1 kHz, ꢁf
Pilot = 7.5 kHz, L = R
Audio spurious productsi
Range from 300 Hz to 15 kHz, with
respect to 1 kHz tone
–
–
–
–
–60
–
dBc
kHz
Hz
Audio bandwidth, upper (– Vin = 66 dBµV EMF (2 mV EMF)
15
–
3 dB point)
∆f = 8 kHz, for 50 µs
Audio bandwidth, lower (–
3 dB point)
20
Broadcom®
October 15, 2014 • 4354-DS109-R
Page 138
BROADCOM CONFIDENTIAL
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