SI4720-B20-GMR Datasheet, PDF (14/48 Pages) Silicon Laboratories – BROADCAST FM RADIO TRANSCEIVER FOR PORTABLE APPLICATIONS

Si4720/21-B20
Table 9. FM Receiver Characteristics^1,2 (Continued)
(V_DD = 2.7 to 5.5 V, V_IO = 1.5 to 3.6 V, T_A = –20 to 85 °C)
Parameter
Symbol
Test Condition
Min Typ Max
Unit
Audio Output Load Capacitance^{6,10 C}_L
Seek/Tune Time⁶
Powerup Time⁶
RSSI Offset¹²
Single-ended
—
RCLK tolerance
—
= 100 ppm
From powerdown
—
Input levels of 8 and
–3
60 dBµV at RF Input
—
50
pF
—
80 ms/channel
—
110
ms
—
3
dB
Notes:
1. Additional testing information is available in Application Note AN388. Volume = maximum for all tests. Tested at
RF = 98.1 MHz.
2. To ensure proper operation and receiver performance, follow the guidelines in “AN383: Antenna Selection and
Universal Layout Guidelines.” Silicon Laboratories will evaluate schematics and layouts for qualified customers.
3. F_MOD = 1 kHz, 75 µs de-emphasis, MONO = enabled, and L = R unless noted otherwise.
4. f = 22.5 kHz.
5. B_AF = 300 Hz to 15 kHz, A-weighted.
6. Guaranteed by characterization.
7. V_EMF = 1 mV.
8. |f₂ – f₁| > 2 MHz, f₀ = 2 x f₁ – f₂. AGC is disabled. Refer to "7. Pin Descriptions: Si4720/21-GM" on page 41.
9. f = 75 kHz.
10. At L_OUT and R_OUT pins.
11. Analog audio output mode.
12. At temperature 25 °C.
14
Rev. 1.0