Preliminary
AM/FM TUNER + MPX + PLL
S1A0903X01
PIN DESCRIPTION
Pin No.
Symbol
LOUT
ROUT
TUNLED
STLED
VSSA
AOUT
AIN
In/out
Function
1
2
O
O
O
O
-
Stereo left channel output
Stereo right channel output
Tuning LED
3
4
Stereo LED
5
Ground
6
O
I
Connections for the MOS Tr. used for the PLL active LPF.
7
8
PD
O
-
PLL charge pump output
Ground
9
VSSX
XOUT
XIN
10
11
12
13
O
I
Crystal oscillator element connection.
75kHz, 3.6MHz, 7.2MHz, 10.8MHz)
DO
O
I
Serial data output to the microprocessor
CL
Clock used for data synchronization for serial data input (DI) and
serial data output (DO)
14
15
16
17
18
19
20
21
22
DI
I
I
Serial data input from the microprocessor
CE
Chip enable for serial I/O
VSSD
TEST1
TEST2
TEST3
VDD
-
Ground
I/O
I/O
O
-
Only for test
-
-
Regulator voltage input
Regulator voltage output
No connection
VREG
NC
-
-
3
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