Si4720-A10-GM Silicon Laboratories Inc, Si4720-A10-GM Datasheet - Page 13

• Manufacturer Part Number: Si4720-A10-GM
• Description: RF Transceiver Broadcast FM Radio Transceiver
• Manufacturer: Silicon Laboratories Inc

Specifications of Si4720-A10-GM

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 9. FM Receiver Characteristics
(V
Parameter
Input Frequency
Sensitivity with Headphone
Network
Sensitivity with 50 Ω Network
RDS Sensitivity
TXO Receiver Mode 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
Notes:
DD
1. Additional testing information is available in Application Note AN388. Volume = maximum for all tests. Tested at
2. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Antenna Selection and
3. F
4. Δf = 22.5 kHz.
5. B
6. Guaranteed by characterization.
7. V
8. |f
9. Δf = 75 kHz.
10. At L
11. Analog audio output mode.
12. At temperature 25 °C.
= 2.7 to 5.5 V, V
RF = 98.1 MHz.
Universal Layout 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
– f
6
6
2
A
. AGC
= –20 to 85 °C)
Symbol
f
R
RF
1,2
L
is disabled. Refer to "7. Pin Descriptions: Si4720/21-GM" on page 41.
FM_DEEMPHASIS = 2
FM_DEEMPHASIS = 1
RDS BLER < 5%
(S+N)/N = 26 dB
(S+N)/N = 26 dB
Test Condition
Rev. 1.0
Single-ended
Δf = 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
Si4720/21-B20
Typ
105
2.2
1.1
3.5
0.1
15
50
50
70
80
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
µV EMF
mV
MHz
Unit
kHz
kΩ
kΩ
pF
dB
dB
dB
dB
dB
Hz
dB
dB
dB
µs
µs
%
RMS
13