参数资料
型号: SI4840-A10-GU
厂商: Silicon Laboratories Inc
文件页数: 8/26页
文件大小: 0K
描述: IC AM/FM RX FOR DIGITAL RADIOS
标准包装: 490
频率: 504kHz ~ 1.75MHz,64MHz ~ 109MHz
调制或协议: AM,FM
应用: 通用
电流 - 接收: 21.5mA
数据接口: PCB,表面贴装
天线连接器: PCB,表面贴装
电源电压: 2 V ~ 3.6 V
工作温度: -15°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
其它名称: 336-2153
Si4840/44-A10
Table 5. FM Receiver Characteristics 1,2
(V DD = 2.7 to 3.6 V, TA = –15 to 85 °C)
Parameter
Symbol
Test Condition
Min
Typ
Max
Unit
Input Frequency
Sensitivity with Headphone
f RF
(S+N)/N = 26 dB
64
2.2
109
MHz
μV EMF
Network 3
LNA Input Resistance 4,5
LNA Input Capacitance 4,5
4
5
k ?
pF
AM Suppression 4,5,6,7
Input IP3 4,8
Adjacent Channel Selectivity 4
Alternate Channel Selectivity 4
Audio Output Voltage 5,6,7,12
Audio Mono S/N 5,6,7,9,10
Audio Stereo S/N 3,4,5,7,9,10
Audio Frequency Response Low 4
Audio Frequency Response High 4
Audio Stereo Separation 5,11
Audio THD 5,6,11
m = 0.3
±200 kHz
±400 kHz
–3 dB
–3 dB
15
50
105
50
65
80
55
55
40
0.1
30
0.5
dB
dBμV EMF
dB
dB
mV RMS
dB
dB
Hz
kHz
dB
%
Audio Output Load Resistance 4,10
Audio Output Load Capacitance 4,10
Powerup/Band Switch Time 4
R L
C L
Single-ended
Single-ended
10
50
110
k ?
pF
ms
Notes:
1. Additional testing information is available in “AN603: Si4840/44 DEMO 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 “AN602: Si484x-A Antenna, Schematic,
Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
3. Frequency is 64~109 MHz.
4. Guaranteed by characterization.
5. V EMF = 1 mV.
6. F MOD = 1 kHz, MONO, and L = R unless noted otherwise.
7. ? f = 22.5 kHz.
8. |f 2 – f 1 | > 2 MHz, f 0 = 2 x f 1 – f 2 .
9. B AF = 300 Hz to 15 kHz, A-weighted.
10. At L OUT and R OUT pins.
11. ? f = 75 kHz.
12. Tested in Digital Volume Mode.
8
Rev.1.0
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