BCM4356XKWBGT Datasheet, PDF (142/195 Pages) Cypress Semiconductor – Single-Chip 5G WiFi IEEE 802.11ac 2×2 MAC/ Baseband/Radio with Integrated Bluetooth 4.1, FM Receiver, and Wireless Charging

BCM4356 Advance Data Sheet
FM Receiver Specifications
Table 37: FM Receiver Specifications (Cont.)
Parameter
Conditions^a
Minimum Typical Maximum Units
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
Deemphasis time constant With respect to 50 and 75 µs
tolerance
–
–
±5
%
RSSI range
With 1 dB resolution and ± 5 dB
3
accuracy at room temp
–
83
dBµV
EMF
1.41
–
14.1m µV EMF
–3
–
77
dBuV
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
Mono stereo blend and
switching
Blending and switching is dynamically proportional to the FM wanted input signal
C/N. The blending and switching characteristics are fully programmable. Refer to
“Audio Features” on page 64 for further details.
Pilot suppression
Vin = 66 dBµV EMF (2 mV EMF),
46
–
–
dB
∆f = 75 kHz, fmod = 1 kHz
Pause detection
Audio level at which a
Relative to 1 kHz tone, ∆f = 22.5 kHz –
–
–
–
pause is detected
Four values in 3 dB steps
–21
–
–12
dB
Audio pause duration
Four values
20
–
40
ms
a. Following conditions are applied to all relevant tests unless otherwise indicated: Preemphasis and deemphasis
of 50 us, R = L for mono, DAC Load > 20 kΩ, BAF = 300 Hz to 15 kHz, and A-weighted filtering applied.
b. Contact Broadcom regarding applications that operate between 65 and 76 MHz.
c. Wanted Signal: ∆f = 22.5 kHz, and fmod = 1 kHz.
d. Interferer: ∆f = 22.5 kHz, and fmod = 1 kHz.
e. RDS sensitivity numbers are for 87.5–108 MHz only.
f. Vin = ∆f = 32 kHz, fmod = 1 kHz, ∆f Pilot = 7.5 kHz, and 95% of blocks decoded with no errors after
correction.
g. Vin = 66 dBµV EMF (2 mV EMF), ∆f = 22.5 kHz, fmod = 1 kHz, and ∆f Pilot = 6.75 kHz.
h. Vin = 66 dBµV EMF (2 mV EMF), ∆f = 100 kHz, fmod = 1 kHz, and ∆f Pilot = 6.75 kHz.
i. Vin = 66 dBµV EMF (2 mV EMF), ∆f = 22.5 kHz, and fmod = 1 kHz.
Broadcom^®
May 8, 2015 • 4356-DS103-R
BROADCOM CONFIDENTIAL
Page 141