SI4735-B20-GM Silicon Laboratories Inc, SI4735-B20-GM Datasheet - Page 11

• Manufacturer Part Number: SI4735-B20-GM
• Description: IC RX AM/FM/SW/LW RAD RDS 20UQFN
• Manufacturer: Silicon Laboratories Inc

Specifications of SI4735-B20-GM

• Package / Case: 20-UQFN, 20-µQFN
• Frequency: 153kHz ~ 279kHz, 520kHz ~ 1.71MHz, 2.3MHz ~ 21.85MHz, 64MHz ~ 108MHz
• Modulation Or Protocol: AM, FM, LW-SW, WB
• Applications: General Purpose
• Current - Receiving: 19.9mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Bus Type: I2C
• Maximum Frequency: 108 MHz, 1710 MHz
• Minimum Frequency: 76 MHz, 520 MHz
• Modulation Technique: AM, FM
• Mounting Style: SMD/SMT
• Function: Radio
• Supply Voltage (min): 2.7 V
• Supply Voltage (max): 5.5 V
• Minimum Operating Temperature: - 20 C
• Maximum Operating Temperature: + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sensitivity: -
• Memory Size: -
• Data Rate - Maximum: -
• Lead Free Status / Rohs Status: Compliant

Table 7. FM Receiver Characteristics
(V
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
Audio Output Load Resistance
Audio Output Load Capacitance
Notes:
DD
1. Additional testing information is available in “AN388: Si470x/1x/2x/3x/4x Evaluation Test Board 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. 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
4,5,7,10,11
IO
OUT
= 1.5 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
6,10
1
6,10
– f
6
6
2
A
. AGC
= –20 to 85 °C)
Symbol
f
R
C
RF
1,2
L
L
is disabled.
FM_DEEMPHASIS = 2
FM_DEEMPHASIS = 1
RDS BLER < 5%
(S+N)/N = 26 dB
(S+N)/N = 26 dB
Test Condition
Rev. 0.5
Single-ended
Single-ended
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
25
55
70
45
10
—
—
—
—
—
—
—
—
3
4
Typ
105
2.2
1.1
0.1
15
50
50
70
80
63
58
75
50
—
—
—
—
—
—
—
—
4
5
Si473x-B20
Max
108
3.5
0.5
50
—
—
—
—
—
—
—
90
30
—
—
—
—
80
54
—
5
6
1
dBµV EMF
µV EMF
µV EMF
µV EMF
mV
MHz
Unit
kHz
k
k
pF
dB
dB
dB
dB
dB
Hz
dB
dB
dB
pF
µs
µs
%
RMS
11