BCM43455 Datasheet, PDF (111/159 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac MAC/Baseband/ Radio with Integrated Bluetooth 4.1 and FM Receiver

BCM43455 Preliminary Data Sheet
FM Receiver Specifications
Table 32: FM Receiver Specifications (Cont.)
Parameter
Conditions^a
Minimum Typical Maximum Units
Left and right AC mute FM input signal fully muted with DAC 60
–
–
dB
enabled
Left and right hard mute FM input signal fully muted with DAC 80
–
–
dB
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 62 for further details.
Maximum signal plus –
noise-to-noise ratio
(S + N)/N, mono ⁱ
–
68
–
dB
Maximum signal plus –
noise-to-noise ratio
(S + N) ÷ N, stereo^g
–
64
–
dB
Total harmonic distortion, Vin = 66 dBμV EMF (2 mV EMF),
–
mono
∆f = 75 kHz, fmod = 400 Hz
–
1.5
%
∆f = 75 kHz, fmod = 1 kHz
–
–
–60
%
∆f = 75 kHz, fmod = 3 kHz
–
–
0.8
%
∆f = 100 kHz, fmod = 1 kHz
–
–
1.0
%
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
–
1.5
%
Audio spurious products^{i Range from 300 Hz to 15 kHz, with –}
respect to 1 kHz tone
–
–60
dBc
Audio bandwidth, upper Vin = 66 dBμV EMF (2 mV EMF)
15
–
–
kHz
(–3 dB point)
∆f = 8 kHz, for 50 μs
Audio bandwidth, lower
(–3 dB point)
–
–
20
Hz
Audio in-band ripple
100 Hz to 13 kHz,
–0.5
–
0.5
dB
Vin = 66 dBμV EMF (2 mV EMF)
∆f = 8 kHz, for 50 μs
De-emphasis time
constant tolerance
With respect to 50 and 75 μs
–
–
±5
%
RSSI range
With 1 dB resolution and ± 5 dB
accuracy at room temp
3
–
1.41
–
83
dBμV EMF
1.41E + 04 μV EMF
–3
–
77
dBμV
Stereo Decoder
Stereo channel
separation
Forced Stereo mode
–
48
–
dB
Vin = 66 dBμV EMF (2 mV EMF),
∆f = 67.5 kHz, fmod = 1 kHz,
∆f Pilot = 6.75 kHz
R = 0, L = 1
Broadcom^®
November 5, 2015 • 43455-DS109-R
BROADCOM CONFIDENTIAL
Page 110