Si4831/35-B30

6

Rev. 1.0

Table 5. FM Receiver Characteristics1,2

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Input Frequency

64

—

109

MHz

Sensitivity with Headphone

Network3

(S+N)/N = 26 dB

—

2.2

—

µV EMF

LNA Input Resistance4,5

—4—

k



LNA Input Capacitance4,5

—5—

pF

AM Suppression4,5,6,7

m = 0.3

—

50

—

dB

Input IP34,8

—

105

—

dBµV EMF

Adjacent Channel Selectivity4

±200 kHz

—

50

—

dB

Alternate Channel Selectivity4

±400 kHz

—

65

—

dB

Audio Output Voltage5,6,7

—80—

Audio Mono S/N5,6,7,9,10

—55—

dB

Audio Stereo S/N3,4,5,7,9,10,

—55—

dB

Audio Frequency Response Low

–3 dB

—

—

30

Hz

Audio Frequency Response High

–3 dB

15

—

—

kHz

Audio Stereo Separation5,11

—42—

dB

Audio THD6,5,11

—0.1

0.5

%

Audio Output Load Resistance4,10

Single-ended

10

—

—

k



Audio Output Load Capacitance4,10

Single-ended

—

—

50

pF

Powerup/Band Switch Time4

——

110

ms

Notes:

1.

Additional testing information is available in “AN569: Si4831/35-DEMO Board Test Procedure.” Volume = maximum

for all tests. Tested at RF = 98.1 MHz.

2.

To ensure proper operation and receiver performance, follow the guidelines in “AN555: Si483x-B Antenna, Schematic,

Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.

3.

Frequency is 76~109 MHz.

4.

Guaranteed by characterization.

5.

6.

7.

f = 22.5 kHz.

8.

9.

10.

11.

f = 75 kHz.