CYW4343X
Table 41. FM Receiver Specifications (Cont.)
Conditionsa
Minimum Typical Maximum
Parameter
Units
Mono stereo blend and
switching
Dynamically proportional to the desired FM input signal C/N. The blending and switching characteristics are
fully programmable. See Audio Features on page 57.
Pilot suppression
Vin = 66 dBµV EMF (2 mV EMF),
∆f = 75 kHz, fmod = 1 kHz.
46
–
–
dB
Pause Detection
Audio level at which
a pause is detected
Relative to 1-kHz tone, ∆f = 22.5 kHz.
4 values in 3 dB steps
4 values
–
–
–
–
–
–
–21
20
–12
40
dB
ms
Audio pause
duration
a. The following conditions are applied to all relevant tests unless otherwise indicated: Preemphasis and deemphasis of 50 µs, R = L for mono,
BAF = 300 Hz to 15 kHz, A-weighted filtering applied.
b. Contact your Broadcom representative for applications operating between 65–76 MHz.
c. Signal of interest: ∆f = 22.5 kHz, fmod = 1 kHz.
d. Interferer: ∆f = 22.5 kHz, 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 with an interferer for 95% of blocks decoded with no errors after correction, over a
sample of 5000 blocks.
g. Vin = 66 dBµV EMF (2 mV EMF), ∆f = 22.5 kHz, fmod = 1 kHz, ∆f pilot = 6.75 kHz.
h. Vin = 66 dBµV EMF (2 mV EMF), ∆f = 100 kHz, fmod = 1 kHz, ∆f pilot = 6.75 kHz.
i.
Vin = 66 dBµV EMF (2 mV EMF), ∆f = 22.5 kHz, fmod = 1 kHz.
Document No. 002-14797 Rev. *H
Page 106 of 128
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