SI4824-DEMO Datasheet, PDF (7/20 Pages) List of Unclassifed Manufacturers – BROADCAST MECHANICAL TUNING AM/FM/SW RADIO RECEIVER

Si4820/24-A10
Table 5. AM/SW Receiver Characteristics^{1, 2}
(V_DD = 2.7 to 3.6 V, TA = 0 to 70 °C)
Parameter
Symbol
Test Condition
Min Typ Max
Unit
Input Frequency
f_RF
Medium Wave (AM)
504 — 1750
kHz
Short Wave (SW)
5.60 — 22.0
MHz
Sensitivity^3,4,5
Large Signal Voltage Handling⁵
Power Supply Rejection Ratio⁵
Audio Output Voltage^3,6
Audio S/N^3,4,6
Audio THD^3,6
Antenna Inductance^5,7
Powerup/Band Switch Time⁵
(S+N)/N = 26 dB
—
30
—
µV EMF
THD < 8%
— 300 —
∆V_DD = 100 mV_RMS, 100 Hz —
40
—
—
54
—
—
45
—
mV_RMS
dB
mV_RMS
dB
—
0.1
—
%
180 — 450
µH
From powerdown
—
— 110
ms
Notes:
1. Additional testing information is available in “AN569: Si4831/35/20/24-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/Si4820/24 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. B_AF = 300 Hz to 15 kHz, A-weighted.
5. Guaranteed by characterization.
6. V_IN = 5 mVrms.
7. Stray capacitance on antenna and board must be < 10 pF to achieve full tuning range at higher inductance levels.
Table 6. Reference Clock and Crystal Characteristics
(V_DD = 2.7 to 3.6 V, T_A = 0 to 70 °C)
Parameter
Symbol Test Condition
Min
Typ
Max
Unit
XTALI Supported Reference Clock
Frequencies
Reference Clock Frequency
Tolerance for XTALI
Reference Clock
—
32.768
—
kHz
–100
—
100
ppm
Crystal Oscillator Frequency
Crystal Oscillator
—
32.768
—
kHz
Crystal Frequency Tolerance
Board Capacitance
–100
—
—
—
100
ppm
3.5
pF
Rev. 1.0
7