SI4731-C-EVB Silicon Laboratories Inc, SI4731-C-EVB Datasheet - Page 12
SI4731-C-EVB
Manufacturer Part Number
SI4731-C-EVB
Description
BOARD EVAL SI4731 RADIO RECEIVER
Manufacturer
Silicon Laboratories Inc
Type
Receiverr
Specifications of SI4731-C-EVB
Frequency
520kHz ~ 1.71MHz, 64MHz ~ 108MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
SI4731
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Si4730/31-C40
Table 9. FM Receiver Characteristics
(V
12
Parameter
Input Frequency
Sensitivity with Headphone
Network
Sensitivity with 50 Network
RDS Sensitivity
LNA Input Resistance
LNA Input Capacitance
Input IP3
AM Suppression
Adjacent Channel Selectivity
Alternate Channel Selectivity
Spurious Response Rejection
Audio Output Voltage
Audio Output L/R Imbalance
Audio Frequency Response Low
Audio Frequency Response High
Audio Stereo Separation
Audio Mono S/N
Audio Stereo S/N
Audio THD
De-emphasis Time Constant
Notes:
DD
1. Additional testing information is available in “AN388: Si470x/1x/2x/3x/4x Evaluation Board Test Procedure.”
2. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
3. F
4. f = 22.5 kHz.
5. B
6. Guaranteed by characterization.
7. V
8. |f
9. f = 75 kHz.
10. At L
11. Analog audio output mode.
12. Blocker Amplitude = 100 dBµV
13. Sensitivity measured at (S+N)/N = 26 dB.
14. At temperature (25°C).
= 2.7 to 5.5 V, V
Volume = maximum for all tests. Tested at RF = 98.1 MHz.
Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
2
MOD
AF
EMF
3,4,5
6,8
– f
OUT
= 300 Hz to 15 kHz, A-weighted.
3,7,9
1
= 1 mV.
= 1 kHz, 75
| > 2 MHz,
and R
6
3,4,5,7,10
3,4,6,7
4,5,6,7,10,11
IO
OUT
= 1.85 to 3.6 V, T
3,4,7
6,7
f
0
µ
6,7
pins.
s de-emphasis, MONO = enabled, and L = R unless noted otherwise.
= 2 x f
7,9
3,7,9
6
3,4,5,6
6
1
– f
6
6
2
. AGC
A
= –20 to 85 °C)
Symbol
f
RF
1,2
is disabled.
FM_DEEMPHASIS = 2
FM_DEEMPHASIS = 1
RDS BLER < 5%
(S+N)/N = 26 dB
(S+N)/N = 26 dB
Test Condition
Rev. 1.0
f = 2 kHz,
±200 kHz
±400 kHz
In-band
m = 0.3
–3 dB
–3 dB
Min
100
76
40
35
60
35
72
15
32
55
70
45
—
—
—
—
—
—
—
3
4
Typ
105
2.2
1.1
0.1
15
50
50
70
80
42
63
58
75
50
—
—
—
—
—
4
5
Max
108
3.5
0.5
—
—
—
—
—
—
—
90
30
—
—
—
—
80
54
5
6
1
dBµV EMF
µV EMF
µV EMF
µV EMF
mV
MHz
Unit
kHz
k
pF
dB
dB
dB
dB
dB
Hz
dB
dB
dB
µs
µs
%
RMS