SI4827-A10 Datasheet, PDF (18/25 Pages) Silicon Laboratories – BROADCAST ANALOG TUNING DIGITAL DISPLAY AM/FM/SW RADIO RECEIVER

Si4827-A10
6. Pin Descriptions: Si4827-A10
IRQ
1
TUNE1
2
TUNE2
3
BAND
4
NC
5
FMI
6
RFGND ⁷
AMI
8
16
AOUT
15
GND
14
VDD
13
XTALI
12
XTALO/LNA_EN
11
SCLK
10
SDIO
9
RST
Pin Number(s)
1
2
3
4
5
6
7
8
9
10,
11
12
13,
14
15
16
Name
Description
IRQ
Interrupt request.
TUNE1
Frequency tuning.
TUNE2
Frequency tuning.
BAND
Band selection and de-emphasis selection.
NC
No connect. Leave floating.
FMI
FM RF inputs. FMI should be connected to the antenna trace.
RFGND
RF ground. Connect to ground plane on PCB.
AMI
AM RF input. AMI should be connected to the AM antenna.
RST
Device reset (active low) input.
SDIO
Serial data input/output.
SCLK
Serial clock input.
XTALO/LNA_EN Crystal oscillator output, enable the SW external LNA in SW mode when not
used as XTALO.
XTALI
Crystal oscillator input/external reference clock input
VDD
Supply voltage. May be connected directly to battery.
GND
Ground. Connect to ground plane on PCB.
AOUT
Audio output.
18
Rev. 1.0