参数资料
型号: SI4737-C40-GU
厂商: Silicon Laboratories Inc
文件页数: 14/42页
文件大小: 0K
描述: IC RX AM/FM/WB RDS/RBDS 24SSOP
标准包装: 490
频率: 520kHz ~ 1.71MHz,64MHz ~ 108MHz,162.4MHz ~ 162.55MHz
调制或协议: AM,FM,WB
应用: 通用
电流 - 接收: 19.9mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
特点: 配有 RSSI
电源电压: 2 V ~ 5.5 V
工作温度: -20°C ~ 85°C
封装/外壳: 24-SSOP(0.154",3.90mm 宽)
供应商设备封装: 24-SSOP
包装: 托盘
Si4736/37/38/39-C40
Table 10. 64–75.9 MHz Input Frequency FM Receiver Characteristics 1,2,6
(V DD = 2.7 to 5.5 V, V IO = 1.85 to 3.6 V, T A = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Input Frequency
Sensitivity with Headphone
f RF
(S+N)/N = 26 dB
64
4.0
75.9
MHz
μV EMF
Network 3,4,5
LNA Input Resistance 7
LNA Input Capacitance 7
3
4
4
5
5
6
k ?
pF
Input IP3
8
100
105
dBμV EMF
AM Suppression
3,4,7
m = 0.3
40
50
dB
Audio Output Voltage
Audio Output L/R Imbalance
Adjacent Channel Selectivity
Alternate Channel Selectivity
3,4,7
3,7,9
Audio Frequency Response Low
Audio Frequency Response High
±200 kHz
±400 kHz
–3 dB
–3 dB
72
15
50
70
80
90
1
30
dB
dB
mV RMS
dB
Hz
kHz
Audio Mono S/N
3,4,5,7,10
55
63
dB
Audio
THD 3,7,9
0.1
0.5
%
De-emphasis Time Constant
FM_DEEMPHASIS = 2
FM_DEEMPHASIS = 1
70
45
75
50
80
54
μs
μs
Audio Output Load Resistance
10
R L
Single-ended
10
k ?
Audio Output Load Capacitance
Seek/Tune Time
10
C L
Single-ended
RCLK tolerance
50
60
pF
ms/channel
= 100 ppm
Powerup Time
From powerdown
110
ms
RSSI
Offset 11
Input levels of 8 and
–3
3
dB
60 dBμV EMF
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. At temperature (25 °C).
14
Rev. 1.0
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