3
Si4022
PIN DEFINITION
Pin type key: D=digital, A=analog, S=supply, I=input, O=output, IO=input/output
Pin
Name
Function
Type
Description
1
SDI
SDI
DI
Serial control / data input
2
SCK
SCK
DI
Serial interface clock input
3
nSEL
nSEL
DI
Chip (interface) select input (active low)
4
SDO
SDO
DO     Serial status data output
5
nIRQ
nIRQ
DO     Interrupt request output (active low)
6
CLK
CLK
DO     Clock output for the microcontroller
7
VREFO
VREFO
AO     Voltage reference output
8
VSS_D
VSS_D
S
Negative supply voltage (digital)
XTL
AIO     Crystal connection (other terminal of crystal to VSS)
9
XTL / REF
REF
DI
External reference input
10
nRES
nRES
DO     Reset output (active low)
11
VSS_A
VSS_A
S
Negative supply voltage (analog)
12
RFO1
RFO1
AO     RF differential signal output (open collector)
13
RFO2
RFO2
AO     RF differential signal output (open collector)
14
VSS_B
VSS_B
S
Negative supply voltage (bulk)
15
VDD
VDD
S
Positive supply voltage
16
FSK
FSK
DI
Data input for asynchronous modulation
 
1
2
4
5
3
6
7
8
16
15
13
12
14
11
10
9
SDI
SCK
nSEL
SDO
nIRQ
CLK
VREFO
VSS_D
FSK
VDD
VSS_B
RF02
RF01
VSS_A
nRES
XTL / REF
IA4222
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相关代理商/技术参数
SI4022-A0-FTR 功能描述:射频发射器 Transmitter EZRadio RoHS:否 制造商:Micrel 类型:ASK Transmitter 封装 / 箱体:SOT-23-6 工作频率:300 MHz to 450 MHz 封装:Reel
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SI-40232 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40232
SI-40233 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40233
SI-40234 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40234
SI-40235 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40235
SI-40236 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40236
SI-40238 制造商:BEL 制造商全称:Bel Fuse Inc. 功能描述:SI-40238