BCM4330 Preliminary Data Sheet
FM Receiver Specifications
Table 32: FM Receiver Specifications (Cont.)
Conditions Minimum Typical Maximum Units
At f ± 2fIF, depending on LO injection 25
Parameter
Image response
(assuming image
–
–
dB
desired
relative to f
.
desired
frequency ≥ ±300 kHz), Measured for 40 dB (S + N)/N at the audio
mono
output.
fIF = ±325 kHz and ±375 kHz.
AM suppression, mono Vin = 14.1 µV EMF,
fmod = 1 kHz,
40
45
–
–
dB
Δf = 22.5 kHz,
m = 0.3,
BAF = 300 Hz to 15 kHz,
L = R,
Deemphasis = 75 µs
Intermediate S/N
Vin = 10 µV EMF,
fmod = 1 kHz,
Δf = 22.5 kHz,
–
–
dB
BAF = 300 Hz to 15 kHz A-weighted,
mono,
Deemphasis = 50 µs
Intermodulation
performance
Desired signal 1 kHz modulation, deviation 22.5kHz
Interferer 1 kHz modulation, deviation 22.5 kHz
Blocker level increased until desired at 26 dB (S + N)/N.
Desired signal level
4.5 µV EMF
45 µV EMF
450 µV EMF
–
–
–
50
50
50
–
–
–
dBc
dBc
dBc
RF Input
RF input impedance
RF input level
RF conducted emissions Local oscillator breakthrough measured
on the reference port
High Z
Maximum input level
1.5
–
–
–
–
–
–
354
–55
kΩ
mV EMF
dBm
925–960 MHz, 1805 –1880 MHz,
and 1930–1990 MHz
–
–
–
–
–90
0
dBm
dBm
RF blocking levels at the 824–915 MHz,
FM antenna input 26 dB GSM 200 kHz BW,
(S+N)/N (Assumes
presence of an external
matching circuit)
CDMA 1.2 MHz BW
1710–1980 MHz,
GSM 200 kHz BW,
CDMA 1.2 MHz BW,
WCDMA 4 MHz BW
–
–
–5
dBm
®
BROADCOM
BCM4330 Preliminary Data Sheet
April 28, 2011 • 4330-DS304-RI
Page 129
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