SI4707-B20-GM Silicon Laboratories Inc, SI4707-B20-GM Datasheet - Page 11

• Manufacturer Part Number: SI4707-B20-GM
• Description: IC RX FM/WB RADIO 20QFN
• Manufacturer: Silicon Laboratories Inc
• Series: -r

Specifications of SI4707-B20-GM

• Frequency: 162.4MHz ~ 162.55MHz
• Sensitivity: -
• Data Rate - Maximum: -
• Modulation Or Protocol: WB
• Applications: General Purpose
• Current - Receiving: 19.1mA
• Data Interface: PCB, Surface Mount
• Memory Size: -
• Antenna Connector: PCB, Surface Mount
• Features: -
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 20-UFQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-2147; SI4707-B20-GM

Table 8. WB Receiver Characteristics
(V
Table 9. Reference Clock and Crystal Characteristics
(V
Parameter
Input Frequency
Sensitivity
Adjacent Channel Selectivity
Audio S/N
Audio Frequency Reponse Low
Audio Frequency Reponse High
AFSK Trip Sensitivity
Notes:
RCLK Supported Frequency
RCLK Frequency Tolerance
REFCLK_PRESCALE
REFCLK
Crystal Oscillator Frequency
Crystal Frequency Tolerance
Board Capacitance
*Note: The Si4707 divides the RCLK input by REFCLK_PRESCALE to obtain REFCLK. There are some RCLK frequencies
DD
DD
1. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Si47xx Antenna, Schematic,
2. F
3. Δf = 3 kHz.
4. B
5. V
6. Δf = 4 kHz.
= 2.7 to 5.5 V, V
= 2.7 to 5.5 V, V
Layout, and Design Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
between 31.130 kHz and 40 MHz that are not supported. See AN332, Table 6 for more details.
MOD
AF
EMF
2,3,4
2,3,4,5
= 300 Hz to 15 kHz, A-weighted.
= 1 mV.
= 1 kHz.
Parameter
IO
IO
= 1.5 to 3.6V, T
6
= 1.5 to 3.6 V, T
*
A
A
= 25 °C)
= –20 to 85 °C)
Symbol
Symbol
1
f
R
Crystal Oscillator
Reference Clock
Test Condition
Rev. 0.8
100% of message
correctly received
Test Condition
SINAD = 12 dB
±25 kHz
–3 dB
–3 dB
31.130
31.130
Min
–50
–50
—
—
1
162.4
Min
—
—
—
—
—
3
32.768
32.768
32.768
Typ
—
—
—
—
0.45
0.45
Typ
Si4707-B20
55
45
—
—
—
40,000.0
34.406
162.55
4095
Max
Max
3.5
300
50
50
—
—
—
—
—
—
µV EMF
µV EMF
MHz
Unit
Unit
ppm
ppm
kHz
kHz
kHz
kHz
dB
dB
Hz
pF
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