Specifications

Si4730/31/34/35-D60
14 Rev. 1.1
Intermod Sensitivity
3,4,5,6,7,11,12
f = ±400 kHz, ±800 kHz — 40 — dBµV
f = ±4 MHz, ±8 MHz — 35 — dBµV
Audio Output Load Resistance
7,11,14
R
L
Single-ended 10 — — k
Audio Output Load
Capacitance
7,11,14
C
L
Single-ended — — 50 pF
Seek/Tune Time
7
RCLK tolerance
=100ppm
— — 60 ms/channel
Powerup Time
7
From powerdown — — 110 ms
RSSI Offset
12,13
Input levels of 8 and
60 dBµV at RF Input
–3 — 3 dB
Table 7. 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)
Parameter Symbol Test Condition Min Typ Max Unit
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
=1kHz, 75µs 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. Analog audio output mode.
7. Guaranteed by characterization.
8. V
EMF
=1 mV.
9. |f
2
– f
1
| > 2 MHz, f
0
=2xf
1
– f
2
. AGC is disabled.
10. f = 75 kHz.
11. Sensitivity measured at (S+N)/N = 26 dB.
12. Blocker Amplitude = 100 dBuV.
13. At temperature (25 °C).
14. At LOUT and ROUT pins.