Si4831/35-B30

Rev. 1.0

7

Table 6. AM/SW Receiver Characteristics1, 2

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Input Frequency

Medium Wave (AM)

504

—

1750

kHz

Short Wave (SW)

5.60

—

22.0

MHz

Sensitivity3,4,5

(S+N)/N = 26 dB

—

30

—

µV EMF

Large Signal Voltage Handling5

THD < 8%

—

300

—

Power Supply Rejection Ratio5

—

40

—

dB

Audio Output Voltage3,6

—

60

—

Audio S/N3,4,6

—

55

—

dB

Audio THD3,6

—

0.1

0.5

%

Antenna Inductance5,7

180

—

450

µH

Powerup/Band Switch Time5

From powerdown

—

—

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 = 520 kHz.

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.

FMOD = 1 kHz, 30% modulation, 2 kHz channel filter.

4.

5.

Guaranteed by characterization.

6.

7.

Stray capacitance on antenna and board must be < 10 pF to achieve full tuning range at higher inductance levels.

Table 7. Reference Clock and Crystal Characteristics

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Reference Clock

XTALI Supported Reference Clock

Frequencies

—

32.768

—

kHz

Reference Clock Frequency

Tolerance for XTALI

–100

—

100

ppm

Crystal Oscillator

Crystal Oscillator Frequency

—

32.768

—

kHz

Crystal Frequency Tolerance

–100

—

100

ppm

Board Capacitance

——

3.5

pF