Si4720-A10-GM Silicon Laboratories Inc, Si4720-A10-GM Datasheet - Page 18

• Manufacturer Part Number: Si4720-A10-GM
• Description: RF Transceiver Broadcast FM Radio Transceiver
• Manufacturer: Silicon Laboratories Inc

Specifications of Si4720-A10-GM

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

Si4720/21-B20
Table 12. FM Receive Power Scan Characteristics
(V
18
Table 13. Reference Clock and Crystal Characteristics
(V
Tune and Signal Strength Measurement
Time per Channel
Notes:
RCLK Supported Frequencies
RCLK Frequency Tolerance
REFCLK_PRESCALE
REFCLK
Crystal Oscillator Frequency
Crystal Frequency Tolerance
Board Capacitance
Notes:
DD
DD
1. Settling time for ac coupling capacitors on the audio input pins after Receive to Transmit transition can take a few
2. Guaranteed by characterization.
1. The Si4720/21 divides the RCLK input by REFCLK_PRESCALE to obtain REFCLK. There are some RCLK
2. A frequency tolerance of ±50 ppm is required for FM seek/tune using 50 kHz channel spacing.
= 2.7 to 5.5 V, V
= 2.7 to 5.5 V, VIO = 1.5 to 3.6 V, T
hundred milliseconds. The actual settling time depends on the values of the ac-coupling capacitors. Using digital audio
input mode avoids this settling time.
frequencies between 31.130 kHz and 40 MHz that are not supported. See “AN332: Si4704/05/06/1x/2x/3x/4x FM
Transmitter/AM/FM/SW/LW/WB Receiver Programming Guide” for more details.
Parameter
Parameter
2
IO
= 1.5 to 3.6 V, T
2
2
1
A
A
= –20 to 85 °C, F
= –20 to 85 °C)
Symbol
Crystal Oscillator
Reference Clock
Symbol
Test Condition
RF
Rev. 1.0
= 76–108 MHz)
1
Test Condition
31.130
31.130
–100
Min
–50
—
—
1
Min
—
32.768
32.768
32.768
Typ
—
—
—
—
Typ
—
40,000
34.406
4095
Max
100
Max
3.5
50
—
80
Unit
Unit
ppm
ppm
ms
kHz
kHz
kHz
pF