SI4311-B10-GM datasheet(6/20 Pages) SILABS

Part #	SI4311-B10-GM

Description	315/433.92 MHZ FSK RECEIVER

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Manufacturer	SILABS [Silicon Laboratories]

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Si4311

6

Rev. 0.5

Table 5. Si4311 Receiver Characteristics

(TA =25°C, VDD =3.3 V, Rs =50 Ω, FRF = 433.92 MHz unless otherwise noted)

Parameter

Symbol

Test Condition

Min

Typ

Max

Unit

Sensitivity @ BER = 10-3 (Note 1)

1.0 kbps,

f = 50 kHz, xtal = ±20 ppm,

315 MHz (Note 2)

—

–104

—

dBm

10 kbps,

f = 50 kHz, xtal = ±20 ppm,

315 MHz (Note 2)

—

–101

—

dBm

1.0 kbps,

f = 50 kHz, xtal = ±20 ppm,

433.92 MHz (Note 2)

—

–102

—

dBm

10 kbps,

f = 50 kHz, xtal = ±20 ppm,

433.92 MHz

TBD

–100

—

dBm

Data Rate3

—

10

kbps

Adjacent Channel Rejection

±200 kHz1

Desired signal is 3 dB above sensitivity

(BER = 10–3), unmodulated interferer

is at ±200 kHz, rejection measured as

difference between desired signal and

interferer level in dB when BER = 10–3

TBD

35

—

dB

Alternate Channel Rejection

±400 kHz1,2

Desired signal is 3 dB above sensitivity

(BER = 10–3), unmodulated interferer

is at ±400 kHz, rejection measured as

difference between desired signal and

interferer level in dB when BER = 10–3

—

55

—

dB

Image Rejection, IF = 128 kHz1,2

—

35

—

dB

Blocking1,2

±2 MHz, 2.4 kbps, desired signal is

3 dB above sensitivity, CW interferer

level is increased until BER = 10–3

—

65

—

dB

±10 MHz, 2.4 kbps, desired signal is

3 dB above sensitivity, CW interferer

level is increased until BER = 10–3

—

70

—

dB

Maximum RF Input Power 1,2

—

8

—

dBm

Input IP33

| f2 –f1 | = 5 MHz, high gain mode,

desired signal is 3 dB above sensitivity,

CW interference levels are increased

until BER = 10–3

—–10

—

dBm

FSK Deviation Input Range3

10

—

90

kHz

LNA Input Capacitance3

—

7

—

pF

RX Boot Time3

From reset

—

320

—

ms

Notes:

1. 1.0 kbps,

f = 50 kHz, xtal = ±20 ppm, AFC = 0, BT[1:0] = 00, DEV[1:0] = 01.

2. Guaranteed by characterization.

3. Guaranteed by design.

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