EZLC-4421 HB Silicon Laboratories Inc, EZLC-4421 HB Datasheet - Page 7

• Manufacturer Part Number: EZLC-4421 HB
• Description: Wireless Accessories EZLink Fast Prototype Kit Hiband
• Manufacturer: Silicon Laboratories Inc

Specifications of EZLC-4421 HB

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Typical Application
Recommended supply decoupling capacitor values
Pin Function vs. Operation Mode
The el and ef bits can be found in the Configuration Setting Command on page 15. Bit el enables the internal TX data register.
Bit ef enables the FIFO mode.
C2 and C3 should be 0603 size ceramic capacitors to achieve the best supply decoupling.
Transmit
Receive
Mode
Band [MHz]
433
868
915
Bit setting
ef = 0
ef = 1
el = 0
el = 1
2.2µF
2.2µF
2.2µF
C1
10nF
10nF
10nF
Internal TX data register disabled
Internal TX data register enabled
C2
nRESin
CLKin
Receiver FIFO disabled
Receiver FIFO disabled
P7
P6
P5
P4
P3
P2
P1
P0
220pF
47pF
33pF
C3
nRES
VDI
SDI
SCK
nSEL
SDO
nIRQ
nFFS
FFIT
CLK
Function
Typical application with FIFO usage
(optional)
(optional)*
(optional)*
(optional)
(optional)
1
2
3
4
5
6
7
8
Note: * Connections needed only in time critical applications
VDD
Si4421
2.2u
C1
16
15
14
13
12
11
10
9
(TX data register can be accessed)
(RX data FIFO can be accessed)
TP
Property
SMD size
Dielectric
10MHz
2.2n
C4
RX data output
X1
TX data input
nFFS input
nFFS input
(opt.)
C3
Pin 6
Tantalum
10n
C2
C1
A
Antenna
PCB
Ceramic
0603
C2
RX data clock
Ceramic
FFIT output
0603
Not used
C3
output
Pin 7
Si4421
7