SI4712-B30 Datasheet, PDF (14/42 Pages) Silicon Laboratories – FM RADIO TRANSMITTER WITH RECEIVE POWER SCAN

Si4712/13-B30
Table 10. FM Receive Power Scan Characteristics^1,2
(V_DD = 2.7 to 5.5 V, V_IO = 1.5 to 3.6 V, T_A = –20 to 85 °C, F_RF = 76–108 MHz)
Parameter
Symbol Test Condition Min Typ Max Unit
Tune and Signal Strength Measurement Time
per Channel
—
—
80
ms
Notes:
1. Settling time for ac coupling capacitors on the audio input pins after Receive to Transmit transition can take a few
hundred milliseconds. The actual settling time depends on the values of the ac-coupling capacitors. Using digital audio
input mode avoids this settling time.
2. Guaranteed by characterization.
Table 11. Reference Clock Characteristics
(V_DD = 2.7 to 5.5 V, V_IO = 1.5 to 3.6 V, T_A = –20 to 85 °C, F_RF = 76–108 MHz)
Supported Parameter
RCLK Frequency Range^1,2
Frequency Tolerance¹
Symbol
Test Condition
Min Typ
31.130 32.768
–50
—
Max
40,000
50
Unit
kHz
ppm
Notes:
1. Guaranteed by characterization.
2. The RCLK frequency divided by an integer number (the prescaler value) must fall in the range of 31,130 to 34,406 Hz.
Therefore, the range of RCLK frequencies is not continuous below frequencies of 311.3 kHz.
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Rev. 1.1