SDA4331X Datasheet, PDF (3/13 Pages) Siemens Semiconductor Group – PLL with I2C Bus for AM/FM Receivers

SDA 4331X
1.4 Pin Definitions and Functions
Pin No. Symbol
Input (I) Function
Output (O)
1
V_DD1
2
SCL
I
Supply voltage digital (5 V)
Clock I²C Bus
3
SDA
I/O
Data I²C Bus
4
A0
I
Address selection, sets the LSB of the IC-address
5
N.C.
6 … 9 SA1 … SA4 O
10 V open drain output, controlled via I²C Bus
10
AM/FM
O
10 V open drain output, indicating the operation
mode (H = AM)
11
FM_IN
I
12
GND_AN
13
AM_IN
I
14
N.C.
Input for the FM signal from VCO
Ground analog
Input for the AM signal from VCO
15
N.C.
16
I_REF
I
Reference current, setting the base current level
for the charge pumps
17
PD_FM
O
18
PD_AM
O
19
PD_FMA
O
20
PD_AMA
O
21
V_DD2
FM charge pump output
AM charge pump output
Source follower output FM
Source follower output AM
Supply voltage digital for charge pump and source
followers (up to 10 V)
22
OSC_FB
I/O
23
OSC_IN
I
Oscillator feedback, quartz terminal
Oscillator input, quartz terminal, optionally input
for external reference
24
GND
Ground digital
Semiconductor Group
3
04.96