SI4730-D60-GMR Datasheet, PDF (16/44 Pages) Silicon Laboratories – BROADCAST AM/FM/SW/LW RADIO RECEIVER

Si4730/31/34/35-D60
Table 9. AM/SW/LW Receiver Characteristics^1,2
(V_A = 2.7 to 5.5 V, V_A = 1.62 to 3.6 V, T_A = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min Typ Max
Input Frequency
f_RF
Long Wave (LW)
153 — 279
Medium Wave (AM)
520 — 1710
Sensitivity^3,4,5
Large Signal Voltage Handling^5,6
Power Supply Rejection Ratio⁵
Audio Output Voltage^3,7
Audio S/N^3,4,7
Audio THD^3,7
Antenna Inductance^5,8
Short Wave (SW)
2.3
—
26.1
(S+N)/N = 26 dB
—
25
35
THD < 8%
— 300 —
∆V_DD = 100 mV_RMS, 100 Hz —
40
—
54
60
67
—
60
—
—
0.1
0.5
Long Wave (LW)
— 2800 —
Powerup Time⁵
Medium Wave (AM)
From powerdown
180 — 450
—
— 110
Unit
kHz
kHz
MHz
µV EMF
mV_RMS
dB
mV_RMS
dB
%
µH
µH
ms
Notes:
1. Additional testing information is available in “AN388: Si470x/1x/2x/3x/4x Evaluation 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 “AN383: Si47xx 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. See “AN388: Si470x/1x/2x/3x/4x Evaluation Board Test Procedure” for evaluation method.
7. V_IN = 5 mVrms.
8. Stray capacitance on antenna and board must be < 10 pF to achieve full tuning range at higher inductance levels.
16
Rev. 1.1