参数资料
型号: SI4737-C40-GM
厂商: Silicon Laboratories Inc
文件页数: 7/42页
文件大小: 0K
描述: IC RX AM/FM/WB RDS/RBDS 20UQFN
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: 2.7 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: 托盘
Si4736/37/38/39-C40
Table 5. 2-Wire Control Interface 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
SCLK Frequency
SCLK Low Time
SCLK High Time
SCLK Input to SDIO ? Setup
Symbol
f SCL
t LOW
t HIGH
t SU:STA
Test Condition
Min
0
1.3
0.6
0.6
Typ
Max
400
Unit
kHz
μs
μs
μs
(START)
SCLK Input to SDIO ? Hold
t HD:STA
0.6
μs
(START)
SDIO Input to SCLK ? Setup
SDIO Input to SCLK ? Hold 4,5
SCLK input to SDIO ? Setup
t SU:DAT
t HD:DAT
t SU:STO
100
0
0.6
900
ns
ns
μs
(STOP)
STOP to START Time
SDIO Output Fall Time
t BUF
t f:OUT
1.3
250
μs
ns
C b
20 + 0.1 -----------
1pF
SDIO Input, SCLK Rise/Fall Time
t f:IN
300
ns
C b
t r:IN
20 + 0.1 -----------
1pF
SCLK, SDIO Capacitive Loading
Input Filter Pulse Suppression
C b
t SP
50
50
pF
ns
Notes:
1. When V IO = 0 V, SCLK and SDIO are low impedance.
2. 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.
3. 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.
4. The Si4736/37/38/39 delays SDIO by a minimum of 300 ns from the V IH threshold of SCLK to comply with the
minimum t HD:DAT specification.
5. The maximum t HD:DAT has only to be met when f SCL = 400 kHz. At frequencies below 400 KHz, t HD:DAT may be
violated as long as all other timing parameters are met.
Rev. 1.0
7
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