Si4730/31-D50
Table 8. FM Receiver Characteristics 1,2 (Continued)
(V A = 2.7 to 5.5 V, V D = 1.62 to 3.6 V, T A = –20 to 85 °C, 76–108 MHz)
Parameter
Intermod Sensitivity 3,4,5,6,12,13
Symbol
Test Condition
? f = ±400 kHz, ±800 kHz
? f = ±4 MHz, ±8 MHz
Min
Typ
40
35
Max
Unit
dBμV
dBμV
Audio Output Load
Resistance 6,10
R L
Single-ended
10
k ?
Audio Output Load Capacitance 6,10
Seek/Tune Time 6
C L
Single-ended
RCLK tolerance
50
60
pF
ms/channel
= 100 ppm
RSSI Offset
Powerup Time 6
14
From powerdown
Input levels of 8 and
–3
110
3
ms
dB
60 dBμV at RF Input
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 = 98.1 MHz.
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. F MOD = 1 kHz, 75 μ s de-emphasis, MONO = enabled, and L = R unless noted otherwise.
4. ? f = 22.5 kHz.
5. B AF = 300 Hz to 15 kHz, A-weighted.
6. Guaranteed by characterization.
7. V EMF = 1 mV.
8. |f 2 – f 1 | > 2 MHz, f 0 = 2 x f 1 – f 2 . AGC is disabled.
9. ? f = 75 kHz.
10. At L OUT and R OUT pins.
11. Analog audio output mode.
12. Blocker Amplitude = 100 dBμV
13. Sensitivity measured at (S+N)/N = 26 dB.
14. At temperature (25°C).
12
Rev. 1.0
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