SI4322-A1-FT Silicon Laboratories Inc, SI4322-A1-FT Datasheet - Page 7

• Manufacturer Part Number: SI4322-A1-FT
• Description: IC RCVR FSK 915MHZ 3.8V 16-TSSOP
• Manufacturer: Silicon Laboratories Inc
• Type: FSK Receiverr

Specifications of SI4322-A1-FT

• Package / Case: 16-TSSOP
• Frequency: 868MHz, 915MHz
• Sensitivity: -104dBm
• Data Rate - Maximum: 256 kbps
• Modulation Or Protocol: FSK
• Applications: Remote Control, RKE, Security Systems
• Current - Receiving: 14mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Features: RSSI Equipped
• Voltage - Supply: 2.2 V ~ 3.8 V
• Operating Frequency: 915 MHz
• Operating Supply Voltage: 2.5 V, 3.3 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Supply Current: 12 mA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Memory Size: -
• Lead Free Status / Rohs Status: Supplier Unconfirmed
• Other names: 336-1628-5

Table 2. AC Characteristics (Continued)
(Test conditions: T
Filter Capacitance for
ARSSI
DRSSI Programmable
Level Steps
DRSSI Response Time
PLL Reference Fre-
quency
PLL Lock Time
PLL Startup Time
PLL Startup Time
Crystal Load Capaci-
tance, see Crystal
Selection Guide
Internal POR Pulse
Width
Crystal Oscillator
Startup Time
Wake-Up Timer Clock
Period
Programmable Wake-
Up Time
Digital Input
Capacitance
Digital Output Rise/Fall
Time
Clock Output Rise/Fall
Time
Slow Clock Frequency
Notes:
1. See matching circuit parameters and antenna design guide for information, and Application Notes available from
2. Using other than a 10 MHz crystal is not recommended because the crystal referred timing and frequency parameters
3. During the Power-On Reset period, commands are not accepted by the chip. In case of software reset, (see "13.
4. The crystal oscillator start up time strongly depends on the capacitance seen by the oscillator. Low capacitance and
5. Auto-calibration can be turned off.
3
Parameter
http://www.silabs.com.
will change accordingly.
Reset modes" on page 34) the reset timeout is 0.25 ms typical.
low ESR crystal is recommended with low parasitic PCB layout design.
OP
= 25 °C; V
f
Symbol
t
ckoutslow
C
RS
RS
wake-up
t
t
rckout
t
t
t
C
fckout
ARSSI
t
t
DD
POR
t
st1P
st2P
f
C
lock
t
PBt
r
ref
sx
, t
inD
resp
step
xl
= 2.7 V)
f
,
after the input signal exceeds the
Recalibration after receiver chain
Crystal ESR < 50 , C
Initial calibration after power-up
Programmable in 0.5 pF steps,
After V
Calibrated every 30 seconds
with running crystal oscillator
enable with running crystal
15 pF pure capacitive load
10 pF pure capacitive load
Until the DRSSI goes high
Frequency error < 1 kHz
pre-programmed limit,
Tolerance ± 1 kHz
after 1 MHz step
DD
tolerance ±10%
C
ARRSI
Condition
final value
has reached 90% of
oscillator
Note 2
Rev. 1.2
= 5 nF
L
= 16pF
5
4
0.995
Min
8.5
—
—
—
—
—
—
—
—
—
—
—
1
9
1
Typ
500
10
30
50
32
—
—
—
—
—
—
—
—
—
6
1
8.4 x 10
1.005
Max
500
100
11
60
16
10
15
—
—
—
—
—
Si4322
5
2
6
Units
MHz
kHz
dB
ms
ms
ms
ms
nF
pF
pF
μs
μs
μs
μs
ns
ns
7