参数资料
型号: SI4738-C40-GMR
厂商: Silicon Laboratories Inc
文件页数: 6/42页
文件大小: 0K
描述: IC RX FM/WB RADIO 20UQFN
标准包装: 2,500
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: 2.7 V ~ 5.5 V
工作温度: -20°C ~ 85°C
封装/外壳: 20-UFQFN 裸露焊盘
供应商设备封装: 20-QFN(3x3)
包装: 带卷 (TR)
Si4736/37/38/39-C40
Table 4. Reset Timing Characteristics 1,2,3
(V DD = 2.7 to 5.5 V, V IO = 1.85 to 3.6 V, T A = –20 to 85 °C)
Parameter
RST Pulse Width and GPO1, GPO2/INT Setup to RST ? ?
GPO1, GPO2/INT Hold from RST ?
Symbol
t SRST
t HRST
Min
100
30
Typ
Max
Unit
μs
ns
Important Notes:
1. When selecting 2-wire mode, the user must ensure that a 2-wire start condition (falling edge of SDIO while SCLK is
high) does not occur within 300 ns before the rising edge of RST.
2. When selecting 2-wire mode, the user must ensure that SCLK is high during the rising edge of RST, and stays high until
after the first start condition.
3. When selecting 3-wire or SPI modes, the user must ensure that a rising edge of SCLK does not occur within 300 ns
before the rising edge of RST.
4. If GPO1 and GPO2 are actively driven by the user, then minimum t SRST is only 30 ns. If GPO1 or GPO2 is hi-Z, then
minimum t SRST is 100 μs, to provide time for on-chip 1 M ? devices (active while RST is low) to pull GPO1 high and
GPO2 low.
t SRST
t HRST
RST
GPO1
GPO2/
INT
70%
30%
70%
30%
70%
30%
Figure 1. Reset Timing Parameters for Busmode Select
6
Rev. 1.0
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